:root {
  --association-blue: #1579d7;
  --association-blue-dark: #0058aa;
  --association-blue-pale: #eaf4fc;
  --expo-green: #2d7d46;
  --expo-green-dark: #1f5c34;
  --expo-green-pale: #eef7f1;
  --ink: #1d2731;
  --muted: #66727e;
  --line: #d8e0e7;
  --soft: #f5f7f8;
  --white: #ffffff;
  --warning: #b33a2d;
  --footer: #1c2b40;
  --shell: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
}

body,
button,
input,
textarea {
  letter-spacing: 0;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--association-blue);
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

h1,
h2,
h3,
p,
ul,
ol,
figure {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.28;
}

ul,
ol {
  margin-bottom: 0;
}

.site-shell {
  width: min(calc(100% - 40px), var(--shell));
  margin-right: auto;
  margin-left: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 1000;
  padding: 8px 14px;
  color: var(--white);
  background: var(--ink);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.expo-site-topbar {
  min-height: 32px;
  color: #68747e;
  background: #f3f5f6;
  font-size: 12px;
}

.expo-site-topbar-inner {
  display: flex;
  min-height: 32px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.expo-site-topbar-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
}

.expo-site-topbar-meta a {
  color: var(--association-blue-dark);
  font-weight: 700;
}

.standalone-brand-band {
  border-bottom: 1px solid #dce4e8;
  background: var(--white) url("images/logo-bgi.png") center / cover no-repeat;
}

.standalone-brand-row {
  position: relative;
  display: grid;
  min-height: 116px;
  grid-template-columns: minmax(460px, 1fr) auto 250px;
  align-items: center;
  gap: 30px;
}

.expo-identity {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 18px;
}

.expo-identity img {
  width: 86px;
  height: 72px;
  flex: 0 0 auto;
  object-fit: contain;
}

.expo-identity-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
}

.expo-identity-copy strong {
  color: var(--association-blue-dark);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.25;
  white-space: nowrap;
}

.expo-identity-copy small {
  margin-top: 5px;
  color: #66798a;
  font-family: Arial, sans-serif;
  font-size: 10px;
  line-height: 1.2;
}

.event-stamp {
  min-width: 162px;
  padding-left: 20px;
  border-left: 3px solid var(--expo-green);
  display: flex;
  flex-direction: column;
  color: #44515b;
  line-height: 1.5;
}

.event-stamp strong {
  color: var(--expo-green-dark);
  font-size: 17px;
}

.event-stamp span {
  font-size: 13px;
}

.standalone-brand-actions {
  align-self: center;
}

.site-search {
  display: flex;
  width: 100%;
  margin-bottom: 0;
}

.site-search input {
  min-width: 0;
  width: 100%;
  height: 34px;
  padding: 0 10px;
  border: 1px solid #b9c7d3;
  border-right: 0;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.92);
  outline: 0;
}

.site-search input:focus {
  border-color: var(--association-blue);
  box-shadow: inset 0 0 0 1px var(--association-blue);
}

.site-search button {
  width: 64px;
  height: 34px;
  border: 0;
  border-radius: 0;
  color: var(--white);
  background: var(--association-blue);
  cursor: pointer;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid var(--association-blue);
  border-radius: 4px;
  background: var(--white);
  cursor: pointer;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--association-blue);
}

.expo-main-nav {
  position: relative;
  z-index: 20;
  color: var(--white);
  background: var(--expo-green-dark);
  box-shadow: 0 4px 12px rgba(25, 51, 73, 0.12);
}

.expo-main-nav ul {
  display: grid;
  min-height: 54px;
  padding: 0;
  grid-template-columns: repeat(9, 1fr);
  list-style: none;
}

.expo-main-nav li {
  display: flex;
  align-items: stretch;
  justify-content: center;
  border-right: 1px solid rgba(255, 255, 255, 0.13);
}

.expo-main-nav li:first-child {
  border-left: 1px solid rgba(255, 255, 255, 0.13);
}

.expo-main-nav a {
  display: flex;
  width: 100%;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  padding: 8px 6px;
  color: var(--white);
  font-size: 16px;
  font-weight: 500;
  white-space: nowrap;
}

.expo-main-nav li:hover,
.expo-main-nav li.active {
  background: var(--white);
}

.expo-main-nav li:hover a,
.expo-main-nav li.active a {
  color: var(--expo-green);
  font-weight: 700;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 9px 20px;
  border: 1px solid var(--association-blue);
  border-radius: 4px;
  color: var(--white);
  background: var(--association-blue);
  font-weight: 700;
  line-height: 1.35;
  cursor: pointer;
}

.button:hover {
  color: var(--white);
  background: var(--association-blue-dark);
  border-color: var(--association-blue-dark);
}

.button.green {
  border-color: var(--expo-green);
  background: var(--expo-green);
}

.button.green:hover {
  border-color: var(--expo-green-dark);
  background: var(--expo-green-dark);
}

.button.secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(0, 0, 0, 0.1);
}

.button.secondary:hover {
  color: var(--ink);
  background: var(--white);
}

.button.outline {
  color: var(--association-blue);
  background: var(--white);
}

.button.outline:hover {
  color: var(--white);
  background: var(--association-blue);
}

.text-link {
  color: var(--association-blue);
  font-weight: 700;
}

.text-link:hover {
  text-decoration: underline;
}

.event-hero {
  position: relative;
  min-height: 390px;
  overflow: hidden;
  color: var(--white);
  background: url("images/hero-tech.jpg") center 55% / cover no-repeat;
}

.event-hero::before {
  position: absolute;
  inset: 0;
  background: rgba(6, 36, 54, 0.72);
  content: "";
}

.event-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 390px;
  grid-template-columns: minmax(0, 1fr) 220px;
  align-items: center;
  gap: 60px;
  padding-top: 36px;
  padding-bottom: 36px;
}

.hero-kicker {
  margin-bottom: 18px;
  color: #d9efe0;
  font-size: 18px;
  font-weight: 700;
}

.event-hero h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: 44px;
  font-weight: 700;
}

.event-hero .hero-theme {
  margin-bottom: 26px;
  color: #edf6f0;
  font-size: 21px;
}

.hero-details {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
}

.hero-details li {
  position: relative;
  padding-left: 14px;
}

.hero-details li::before {
  position: absolute;
  top: 11px;
  left: 0;
  width: 5px;
  height: 5px;
  background: #72bf83;
  content: "";
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.countdown-panel {
  display: grid;
  min-height: 190px;
  align-content: center;
  justify-items: center;
  border: 1px solid rgba(255, 255, 255, 0.36);
  background: rgba(7, 42, 45, 0.38);
  text-align: center;
}

.countdown-panel span {
  font-size: 16px;
}

.countdown-panel strong {
  margin: 8px 0 0;
  color: #d9f0df;
  font-size: 72px;
  line-height: 1;
}

.countdown-panel em {
  font-style: normal;
}

.fact-strip {
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.fact-grid {
  display: grid;
  min-height: 104px;
  grid-template-columns: repeat(4, 1fr);
}

.fact-item {
  display: grid;
  align-content: center;
  min-width: 0;
  padding: 18px 28px;
  border-right: 1px solid var(--line);
}

.fact-item:first-child {
  border-left: 1px solid var(--line);
}

.fact-item strong {
  color: var(--association-blue-dark);
  font-size: 26px;
  line-height: 1.2;
}

.fact-item span {
  color: var(--muted);
  font-size: 14px;
}

.section-band {
  padding: 66px 0;
}

.section-band.soft {
  background: var(--soft);
}

.section-band.blue-pale {
  background: var(--association-blue-pale);
}

.section-band.green-pale {
  background: var(--expo-green-pale);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 30px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.section-heading h2 {
  position: relative;
  margin: 0;
  padding-left: 15px;
  font-size: 28px;
}

.section-heading h2::before {
  position: absolute;
  top: 2px;
  bottom: 2px;
  left: 0;
  width: 5px;
  background: var(--association-blue);
  content: "";
}

.section-heading p {
  margin-bottom: 1px;
  color: var(--muted);
}

.section-heading.spaced {
  margin-top: 52px;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.quick-link {
  position: relative;
  min-height: 150px;
  padding: 28px 26px;
  border-right: 1px solid var(--line);
  background: var(--white);
}

.quick-link:first-child {
  border-left: 1px solid var(--line);
}

.quick-link .quick-index {
  display: block;
  margin-bottom: 8px;
  color: var(--expo-green);
  font-size: 13px;
  font-weight: 700;
}

.quick-link h3 {
  margin-bottom: 7px;
  font-size: 21px;
}

.quick-link p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.quick-link:hover {
  color: inherit;
  background: var(--expo-green-pale);
}

.home-news-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(340px, 0.85fr);
  gap: 42px;
}

.featured-news {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.featured-news img {
  width: 300px;
  height: 196px;
  object-fit: cover;
}

.featured-news h3 {
  margin-bottom: 10px;
  font-size: 23px;
}

.featured-news p {
  margin-bottom: 14px;
  color: var(--muted);
}

.news-list,
.download-list,
.contact-list,
.plain-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-item {
  display: grid;
  min-height: 54px;
  grid-template-columns: 20px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--line);
}

.news-item:last-child {
  border-bottom: 1px solid var(--line);
}

.news-icon {
  display: flex;
  width: 18px;
  height: 18px;
  align-items: center;
  justify-content: center;
  color: #2b91d9;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  transition: transform 0.3s linear;
}

.news-item a {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.2s ease, transform 0.3s linear;
}

.news-item:hover .news-icon,
.news-item:hover a,
.news-item:focus-within .news-icon,
.news-item:focus-within a {
  transform: translateX(10px);
}

.news-item:hover a,
.news-item:focus-within a {
  color: var(--association-blue);
}

.news-item time {
  color: var(--muted);
  font-size: 13px;
}

@media (prefers-reduced-motion: reduce) {
  .news-icon,
  .news-item a {
    transition: none;
  }

  .news-item:hover .news-icon,
  .news-item:hover a,
  .news-item:focus-within .news-icon,
  .news-item:focus-within a {
    transform: none;
  }
}

.tabset {
  min-width: 0;
}

.tab-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 4px;
  border-bottom: 2px solid var(--association-blue);
}

.tab-button {
  min-height: 48px;
  border: 0;
  border-radius: 0;
  color: var(--ink);
  background: #e8edf1;
  font-weight: 700;
  cursor: pointer;
}

.tab-button.active {
  color: var(--white);
  background: var(--association-blue);
}

.tab-panel {
  padding-top: 6px;
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.scope-item {
  min-height: 190px;
  padding: 24px;
  border-top: 4px solid var(--expo-green);
  background: var(--white);
  box-shadow: 0 5px 16px rgba(27, 54, 43, 0.08);
}

.scope-item:nth-child(even) {
  border-top-color: var(--association-blue);
}

.scope-item .scope-number {
  display: block;
  margin-bottom: 24px;
  color: #9aa6ae;
  font-size: 13px;
  font-weight: 700;
}

.scope-item h3 {
  margin-bottom: 8px;
  font-size: 20px;
}

.scope-item p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.promo-band {
  position: relative;
  color: var(--white);
  background: url("images/hero-field.jpg") center 60% / cover no-repeat;
}

.promo-band::before {
  position: absolute;
  inset: 0;
  background: rgba(27, 64, 42, 0.83);
  content: "";
}

.promo-inner {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 240px;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding-top: 38px;
  padding-bottom: 38px;
}

.promo-inner h2 {
  margin-bottom: 10px;
  font-size: 31px;
}

.promo-inner p {
  max-width: 780px;
  margin-bottom: 0;
  color: #edf6ef;
}

.history-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.history-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--white);
}

.history-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
}

.history-card-body {
  padding: 22px;
}

.history-card .year {
  display: block;
  margin-bottom: 8px;
  color: var(--association-blue);
  font-size: 14px;
  font-weight: 700;
}

.history-card h3 {
  margin-bottom: 8px;
  font-size: 20px;
}

.history-card p {
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 14px;
}

.organizer-grid {
  display: grid;
  grid-template-columns: 1.2fr repeat(4, 1fr);
  gap: 14px;
}

.organizer-item {
  display: grid;
  min-height: 118px;
  align-content: center;
  justify-items: center;
  padding: 16px;
  border: 1px solid var(--line);
  background: var(--white);
  text-align: center;
}

.organizer-item.primary {
  color: var(--white);
  background: var(--association-blue-dark);
  border-color: var(--association-blue-dark);
}

.organizer-item img {
  max-width: 152px;
  max-height: 56px;
  object-fit: contain;
}

.organizer-item strong {
  font-size: 17px;
}

.organizer-item span {
  margin-top: 5px;
  color: inherit;
  font-size: 12px;
  opacity: 0.78;
}

.page-hero {
  position: relative;
  min-height: 270px;
  color: var(--white);
  background: url("images/hero-tech.jpg") center 48% / cover no-repeat;
}

.page-hero.conference {
  background-image: url("images/hero-conference.png");
  background-position: center 56%;
}

.page-hero.field {
  background-image: url("images/hero-field.jpg");
  background-position: center 68%;
}

.page-hero::before {
  position: absolute;
  inset: 0;
  background: rgba(5, 42, 65, 0.75);
  content: "";
}

.page-hero.field::before {
  background: rgba(28, 67, 45, 0.78);
}

.page-hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 270px;
  flex-direction: column;
  justify-content: center;
  padding-top: 42px;
  padding-bottom: 42px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
}

.breadcrumb a:hover {
  color: var(--white);
  text-decoration: underline;
}

.page-hero h1 {
  margin-bottom: 10px;
  font-size: 38px;
}

.page-hero p {
  max-width: 760px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 18px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, 0.75fr);
  gap: 46px;
}

.article-copy h2 {
  margin: 38px 0 15px;
  font-size: 25px;
}

.article-copy h2:first-child {
  margin-top: 0;
}

.article-copy h3 {
  margin: 28px 0 10px;
  font-size: 20px;
}

.article-copy p {
  color: #3f4c57;
}

.article-copy ul,
.article-copy ol {
  padding-left: 24px;
}

.article-copy li {
  margin-bottom: 8px;
}

.sidebar-panel {
  margin-bottom: 22px;
  padding: 25px;
  border-top: 4px solid var(--association-blue);
  background: var(--soft);
}

.sidebar-panel.green {
  border-top-color: var(--expo-green);
  background: var(--expo-green-pale);
}

.sidebar-panel h2,
.sidebar-panel h3 {
  margin-bottom: 14px;
  font-size: 20px;
}

.sidebar-panel p:last-child {
  margin-bottom: 0;
}

.key-value-list {
  margin: 0;
}

.key-value-list div {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid rgba(85, 108, 124, 0.18);
}

.key-value-list div:first-child {
  border-top: 0;
}

.key-value-list dt {
  color: var(--muted);
}

.key-value-list dd {
  margin: 0;
  font-weight: 700;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.metric {
  min-height: 128px;
  padding: 22px;
  border-left: 4px solid var(--association-blue);
  background: var(--soft);
}

.metric:nth-child(even) {
  border-left-color: var(--expo-green);
}

.metric strong {
  display: block;
  margin-bottom: 5px;
  color: var(--association-blue-dark);
  font-size: 28px;
}

.metric span {
  color: var(--muted);
  font-size: 14px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-item {
  min-height: 205px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--white);
}

.feature-item .label {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--expo-green);
  font-size: 13px;
  font-weight: 700;
}

.feature-item h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

.feature-item p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.exhibit-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
}

.exhibit-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

.exhibit-table th,
.exhibit-table td {
  padding: 17px 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

.exhibit-table th:last-child,
.exhibit-table td:last-child {
  border-right: 0;
}

.exhibit-table tr:last-child td {
  border-bottom: 0;
}

.exhibit-table th {
  color: var(--white);
  background: var(--association-blue-dark);
}

.exhibit-table td strong {
  color: var(--association-blue-dark);
}

.step-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 0;
  counter-reset: steps;
  list-style: none;
}

.step-list li {
  position: relative;
  min-height: 165px;
  padding: 24px 24px 24px 66px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  counter-increment: steps;
}

.step-list li:first-child {
  border-left: 1px solid var(--line);
}

.step-list li::before {
  position: absolute;
  top: 23px;
  left: 22px;
  width: 31px;
  height: 31px;
  border-radius: 50%;
  color: var(--white);
  background: var(--expo-green);
  content: counter(steps);
  font-weight: 700;
  line-height: 31px;
  text-align: center;
}

.step-list h3 {
  margin-bottom: 8px;
  font-size: 18px;
}

.step-list p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.notice-feed {
  border-top: 2px solid var(--association-blue);
}

.notice-row {
  display: grid;
  min-height: 92px;
  grid-template-columns: 118px minmax(0, 1fr) 98px;
  align-items: center;
  gap: 22px;
  border-bottom: 1px solid var(--line);
}

.notice-row .tag {
  color: var(--association-blue);
  font-size: 13px;
  font-weight: 700;
}

.notice-row h2,
.notice-row h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
}

.notice-row time {
  color: var(--muted);
  font-size: 13px;
  text-align: right;
}

.event-program {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.event-program:first-child {
  border-top: 1px solid var(--line);
}

.event-program .event-type {
  color: var(--association-blue);
  font-weight: 700;
}

.event-program h2,
.event-program h3 {
  margin-bottom: 9px;
  font-size: 22px;
}

.event-program p {
  margin-bottom: 0;
  color: var(--muted);
}

.timeline {
  position: relative;
  padding-left: 36px;
}

.timeline::before {
  position: absolute;
  top: 8px;
  bottom: 18px;
  left: 8px;
  width: 2px;
  background: var(--line);
  content: "";
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 26px;
  padding: 0 0 42px;
}

.timeline-item::before {
  position: absolute;
  top: 6px;
  left: -35px;
  width: 16px;
  height: 16px;
  border: 4px solid var(--white);
  border-radius: 50%;
  background: var(--expo-green);
  box-shadow: 0 0 0 1px var(--expo-green);
  content: "";
}

.timeline-year {
  color: var(--association-blue-dark);
  font-size: 28px;
  font-weight: 700;
}

.timeline-content h2,
.timeline-content h3 {
  margin-bottom: 8px;
  font-size: 22px;
}

.timeline-meta {
  margin-bottom: 12px;
  color: var(--expo-green-dark);
  font-size: 14px;
  font-weight: 700;
}

.timeline-content p {
  color: var(--muted);
}

.download-group {
  margin-bottom: 44px;
}

.download-group h2 {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--association-blue);
  font-size: 24px;
}

.download-item {
  display: grid;
  min-height: 78px;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.file-type {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  color: var(--white);
  background: var(--association-blue);
  font-size: 11px;
  font-weight: 700;
}

.file-type.pdf {
  background: var(--warning);
}

.download-item h3 {
  margin: 0 0 3px;
  font-size: 17px;
}

.download-item p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.article-detail {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 0 72px;
}

.article-detail > header {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.article-detail > header h1 {
  margin: 0;
  color: var(--ink);
  font-size: 30px;
  line-height: 1.45;
}

.article-detail > header p {
  margin: 14px 0 0;
  color: var(--muted);
}

.article-body {
  padding-top: 30px;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.9;
}

.article-body img {
  max-width: 100%;
  height: auto;
}

.related-attachments {
  margin-top: 36px;
  padding: 24px;
  border: 1px solid var(--line);
  background: #f7f9fb;
}

.related-attachments h2 {
  margin: 0 0 14px;
  font-size: 20px;
}

.related-attachments ul {
  margin: 0;
  padding-left: 20px;
}

.related-attachments li + li {
  margin-top: 8px;
}

.download-link {
  min-width: 74px;
  color: var(--association-blue);
  font-weight: 700;
  text-align: right;
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 42px;
}

.contact-block {
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.contact-block h2,
.contact-block h3 {
  margin-bottom: 12px;
  font-size: 21px;
}

.contact-block p {
  margin-bottom: 5px;
  color: #46545f;
}

.mailbox {
  padding: 30px;
  border-top: 4px solid var(--expo-green);
  background: var(--soft);
}

.mailbox h2 {
  margin-bottom: 8px;
  font-size: 25px;
}

.mailbox > p {
  color: var(--muted);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field {
  min-width: 0;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 700;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid #bdc8d0;
  border-radius: 0;
  background: var(--white);
  outline: 0;
}

.field input {
  height: 44px;
  padding: 0 12px;
}

.field textarea {
  min-height: 150px;
  padding: 10px 12px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--association-blue);
  box-shadow: 0 0 0 2px rgba(21, 121, 215, 0.14);
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
}

.address-panel {
  min-height: 240px;
  padding: 34px;
  color: var(--white);
  background: var(--association-blue-dark);
}

.address-panel h2 {
  margin-bottom: 12px;
  font-size: 25px;
}

.address-panel p:last-child {
  margin-bottom: 0;
}

.search-summary {
  margin-bottom: 26px;
  color: var(--muted);
}

.search-summary strong {
  color: var(--ink);
}

.search-result {
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.search-result:last-child {
  border-bottom: 1px solid var(--line);
}

.search-result h2 {
  margin-bottom: 6px;
  font-size: 21px;
}

.search-result h2 a {
  color: var(--association-blue-dark);
}

.search-result p {
  margin-bottom: 0;
  color: var(--muted);
}

.empty-state {
  padding: 46px;
  border: 1px solid var(--line);
  background: var(--soft);
  text-align: center;
}

.friend-links {
  border-top: 1px solid #263a54;
  color: #aeb8c4;
  background: var(--footer);
}

.friend-links-inner {
  padding-top: 24px;
  padding-bottom: 20px;
}

.friend-links h2 {
  margin-bottom: 12px;
  color: var(--white);
  font-size: 18px;
}

.friend-link-rows {
  font-size: 12px;
}

.friend-link-rows p {
  margin-bottom: 7px;
}

.friend-link-rows strong {
  color: #52b6ff;
}

.friend-link-rows a {
  display: inline-block;
  margin-right: 10px;
}

.friend-link-rows a:not(:last-child)::after {
  margin-left: 10px;
  color: #566579;
  content: "|";
}

.friend-link-rows a:hover {
  color: #52b6ff;
}

.site-footer {
  color: rgba(255, 255, 255, 0.52);
  background: var(--footer);
  font-size: 12px;
  text-align: center;
}

.site-footer .site-shell {
  padding-top: 18px;
  padding-bottom: 20px;
  border-top: 1px solid #2a4160;
}

.site-footer p {
  margin-bottom: 3px;
}

.site-footer a:hover {
  color: var(--white);
}

@media (max-width: 1100px) {
  .standalone-brand-row {
    grid-template-columns: minmax(390px, 1fr) auto 220px;
    gap: 18px;
  }

  .expo-identity {
    gap: 14px;
  }

  .expo-identity img {
    width: 74px;
    height: 64px;
  }

  .expo-identity-copy strong {
    font-size: 31px;
  }

  .expo-main-nav a {
    font-size: 14px;
  }

  .featured-news {
    grid-template-columns: 240px 1fr;
  }

  .featured-news img {
    width: 240px;
    height: 176px;
  }
}

@media (max-width: 900px) {
  .site-shell {
    width: min(calc(100% - 30px), var(--shell));
  }

  .standalone-brand-row {
    min-height: 96px;
    grid-template-columns: minmax(0, 1fr) 44px;
    gap: 12px;
  }

  .expo-identity img {
    width: 68px;
    height: 58px;
  }

  .expo-identity-copy strong {
    font-size: 30px;
  }

  .event-stamp,
  .standalone-brand-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .menus-wrap {
    display: none;
  }

  .menus-wrap.open {
    display: block;
  }

  .expo-main-nav ul {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .expo-main-nav li:last-child {
    grid-column: 1 / -1;
  }

  .expo-main-nav li,
  .expo-main-nav li:first-child {
    border-left: 0;
    border-right: 1px solid rgba(255, 255, 255, 0.16);
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  }

  .expo-main-nav a {
    min-height: 44px;
    font-size: 14px;
  }

  .expo-main-nav li.active a {
    color: var(--white);
    background: var(--expo-green);
  }

  .event-hero,
  .event-hero-inner {
    min-height: 520px;
  }

  .event-hero-inner {
    grid-template-columns: 1fr;
    gap: 26px;
    padding-top: 44px;
    padding-bottom: 44px;
  }

  .event-hero h1 {
    font-size: 40px;
  }

  .countdown-panel {
    min-height: 108px;
    grid-template-columns: auto auto auto;
    align-items: baseline;
    justify-content: start;
    gap: 10px;
    padding: 20px 24px;
  }

  .countdown-panel strong {
    font-size: 48px;
  }

  .fact-grid,
  .quick-grid,
  .scope-grid,
  .metric-grid,
  .feature-grid,
  .history-grid,
  .organizer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .fact-item:nth-child(3),
  .fact-item:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .quick-link:nth-child(3),
  .quick-link:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .home-news-grid,
  .content-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .promo-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .step-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .step-list li:nth-child(3),
  .step-list li:nth-child(4) {
    border-top: 0;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .site-shell {
    width: min(calc(100% - 24px), var(--shell));
  }

  .expo-site-topbar-inner {
    min-height: 34px;
  }

  .expo-site-topbar-meta [data-today] {
    display: none;
  }

  .standalone-brand-row {
    min-height: 90px;
    grid-template-columns: minmax(0, 1fr) 42px;
    gap: 9px;
  }

  .expo-identity {
    gap: 10px;
  }

  .expo-identity img {
    width: 58px;
    height: 50px;
  }

  .expo-identity-copy strong {
    max-width: 100%;
    font-size: 23px;
    white-space: normal;
  }

  .expo-identity-copy small {
    display: none;
  }

  .nav-toggle {
    width: 40px;
    height: 40px;
  }

  .event-hero,
  .event-hero-inner {
    min-height: 560px;
  }

  .event-hero-inner {
    gap: 22px;
    padding-top: 38px;
    padding-bottom: 38px;
  }

  .hero-kicker {
    margin-bottom: 12px;
    font-size: 15px;
  }

  .event-hero h1 {
    margin-bottom: 14px;
    font-size: 34px;
  }

  .event-hero .hero-theme {
    margin-bottom: 20px;
    font-size: 18px;
  }

  .hero-details {
    display: grid;
    gap: 8px;
    margin-bottom: 24px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .button {
    padding-right: 12px;
    padding-left: 12px;
    text-align: center;
  }

  .countdown-panel {
    min-height: 88px;
    padding: 14px 18px;
  }

  .countdown-panel strong {
    font-size: 40px;
  }

  .fact-grid,
  .quick-grid,
  .scope-grid,
  .metric-grid,
  .feature-grid,
  .history-grid,
  .organizer-grid,
  .step-list {
    grid-template-columns: 1fr;
  }

  .fact-item,
  .fact-item:first-child {
    min-height: 88px;
    padding: 14px 20px;
    border-left: 1px solid var(--line);
    border-top: 1px solid var(--line);
  }

  .fact-item:first-child {
    border-top: 0;
  }

  .fact-item strong {
    font-size: 23px;
  }

  .section-band {
    padding: 48px 0;
  }

  .section-heading {
    display: block;
    margin-bottom: 24px;
  }

  .section-heading h2 {
    margin-bottom: 7px;
    font-size: 25px;
  }

  .quick-link,
  .quick-link:first-child {
    min-height: 130px;
    border-left: 1px solid var(--line);
    border-top: 1px solid var(--line);
  }

  .quick-link:first-child {
    border-top: 0;
  }

  .featured-news {
    grid-template-columns: 1fr;
  }

  .featured-news img {
    width: 100%;
    height: 210px;
  }

  .news-item {
    min-height: 66px;
    grid-template-columns: 20px minmax(0, 1fr);
  }

  .news-item time {
    display: none;
  }

  .news-item a {
    white-space: normal;
  }

  .promo-inner {
    min-height: 280px;
  }

  .promo-inner h2 {
    font-size: 27px;
  }

  .history-card img {
    height: 205px;
  }

  .page-hero,
  .page-hero-inner {
    min-height: 240px;
  }

  .page-hero h1 {
    font-size: 32px;
  }

  .page-hero p {
    font-size: 16px;
  }

  .event-program,
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .timeline-year {
    font-size: 24px;
  }

  .notice-row {
    grid-template-columns: 1fr;
    gap: 5px;
    padding: 18px 0;
  }

  .notice-row time {
    text-align: left;
  }

  .step-list li,
  .step-list li:first-child,
  .step-list li:nth-child(3),
  .step-list li:nth-child(4) {
    border: 1px solid var(--line);
    border-bottom: 0;
  }

  .step-list li:last-child {
    border-bottom: 1px solid var(--line);
  }

  .download-item {
    grid-template-columns: 50px minmax(0, 1fr);
  }

  .download-link {
    grid-column: 2;
    text-align: left;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .field.full {
    grid-column: auto;
  }

  .mailbox {
    padding: 24px 18px;
  }

  .friend-link-rows a {
    margin-bottom: 5px;
  }
}