:root {
  --ink: #1a1a1a;
  --paper: #f5f0e8;
  --soft: #eee9e0;
  --white: #fffdf8;
  --yellow: #ffcc00;
  --red: #e63b2e;
  --blue: #0055ff;
  --line: 4px solid var(--ink);
  --shadow: 7px 7px 0 var(--ink);
  --display: "Archivo Black", "Noto Sans SC", sans-serif;
  --body: "Noto Sans SC", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(26, 26, 26, .045) 1px, transparent 1px) 0 0 / 36px 36px,
    linear-gradient(rgba(26, 26, 26, .04) 1px, transparent 1px) 0 0 / 36px 36px,
    var(--paper);
  color: var(--ink);
  font-family: var(--body);
  letter-spacing: 0;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; font-weight: 900; cursor: pointer; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 78px;
  padding: 12px clamp(16px, 4vw, 44px);
  background: rgba(245, 240, 232, .96);
  border-bottom: var(--line);
  box-shadow: 0 4px 0 var(--ink);
  backdrop-filter: blur(12px);
}
.brand {
  display: flex;
  border: var(--line);
  font-family: var(--display);
  line-height: 1;
  background: var(--white);
}
.brand span { padding: 9px 11px; background: var(--yellow); border-right: var(--line); font-size: 24px; }
.brand strong { padding: 10px 12px; font-size: 14px; align-self: center; }
.top-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow: visible;
  scrollbar-width: none;
}
.top-nav a, .nav-parent, .primary-button, .kit-grid button, .press-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  box-shadow: none;
  padding: 9px 11px;
  font-family: var(--display);
  font-weight: 900;
  font-size: 12px;
  white-space: nowrap;
  color: var(--ink);
  transition: transform .14s ease, background .14s ease, color .14s ease;
}
.top-nav > a,
.top-nav .nav-parent {
  min-width: 92px;
  min-height: 48px;
  font-size: 18px;
}
.top-nav a:hover, .top-nav a.active, .nav-dropdown:hover .nav-parent, .nav-dropdown:focus-within .nav-parent {
  background: var(--blue);
  color: white;
}
.nav-dropdown {
  position: relative;
}
.nav-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 80;
  display: grid;
  gap: 8px;
  min-width: 160px;
  padding: 10px;
  background: var(--paper);
  box-shadow: 0 12px 26px rgba(26, 26, 26, .18);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .14s ease, transform .14s ease, visibility .14s ease;
}
.nav-dropdown:hover .nav-menu,
.nav-dropdown:focus-within .nav-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-menu a {
  width: 100%;
  min-height: 42px;
  box-shadow: none;
  font-size: 15px;
}
.lang-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  font-family: var(--display);
  font-weight: 900;
}
.lang-switch a {
  padding: 8px 7px;
  color: var(--ink);
}
.lang-switch a.active {
  color: var(--blue);
}
.lang-switch a + a::before {
  content: "/";
  margin-right: 8px;
  color: var(--ink);
}
.primary-button { padding: 13px 18px; background: var(--yellow); font-size: 14px; }
.primary-button.ghost { background: var(--white); }
.top-nav a:active, .primary-button:active, .kit-grid button:active, .press-list a:active {
  transform: translateY(1px);
}
main { max-width: 1480px; margin: 0 auto; }

.home-hero, .page-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  min-height: calc(100vh - 82px);
  border-bottom: var(--line);
}
.hero-copy, .page-hero > div, .page-hero:not(.split) {
  padding: clamp(30px, 6vw, 78px);
}
.home-hero .hero-copy, .page-hero > div { border-right: var(--line); }
.eyebrow, .section-kicker {
  margin: 0 0 18px;
  font: 900 13px var(--display);
  text-transform: uppercase;
}
h1, h2, h3 { font-family: var(--display); line-height: .95; margin: 0; }
.home-hero h1, .page-hero h1 {
  font-size: clamp(70px, 13vw, 178px);
  text-transform: uppercase;
  line-height: .86;
}
.home-hero h1 span, .page-hero h1 span { color: var(--red); }
.hero-lead, .page-hero p:last-child {
  max-width: 760px;
  margin: 28px 0;
  font-size: clamp(20px, 2.2vw, 30px);
  font-weight: 900;
  line-height: 1.35;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-poster { margin: 0; position: relative; min-height: 520px; background: var(--ink); overflow: hidden; }
.hero-poster img, .page-hero img, .calendar-link img, .schedule-section img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(.75) contrast(1.1);
}
.hero-poster figcaption {
  position: absolute;
  left: 24px;
  bottom: 24px;
  background: var(--yellow);
  border: var(--line);
  box-shadow: var(--shadow);
  padding: 14px 18px;
  font-family: var(--display);
}

.theme-band, .opening-grid, .schedule-section, .statement, .feature-list, .calendar-link, .city-map-page, .contact-block {
  border-bottom: var(--line);
  padding: clamp(28px, 5vw, 68px);
}
.theme-band {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 30px;
  background: var(--yellow);
}
.theme-band span { display: block; font: 900 13px var(--display); text-transform: uppercase; }
.theme-band strong { display: block; margin-top: 12px; font: 900 clamp(44px, 7vw, 92px) var(--display); line-height: .9; }
.theme-band p, .statement p, .feature-list p, .calendar-link p, .city-map-page p, .contact-block p {
  margin: 0;
  font-size: clamp(18px, 2vw, 26px);
  font-weight: 800;
  line-height: 1.55;
}
.opening-grid, .schedule-section, .calendar-link, .city-map-page {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 34px;
  align-items: stretch;
}
.opening-card {
  border: var(--line);
  box-shadow: var(--shadow);
  background: var(--white);
  padding: clamp(24px, 4vw, 48px);
}
.opening-card h2, .section-heading h2, .statement h2, .feature-list h2, .calendar-link h2, .city-map-page h2, .contact-block h2 {
  margin-bottom: 22px;
  font-size: clamp(40px, 6vw, 82px);
}
.opening-card p:last-child { margin: 0; font-weight: 800; font-size: 20px; line-height: 1.55; }
.rundown { margin: 0; padding: 0; list-style: none; border: var(--line); box-shadow: var(--shadow); background: var(--white); }
.rundown li { display: grid; grid-template-columns: 104px 1fr; border-bottom: var(--line); }
.rundown li:last-child { border-bottom: 0; }
.rundown time, .rundown span { padding: 17px; font-weight: 900; }
.rundown time { border-right: var(--line); background: var(--yellow); font-family: var(--display); }

.modules, .card-grid, .bento, .keyword-wall, .timeline, .archive-grid, .press-list, .stats, .kit-grid {
  padding: clamp(28px, 5vw, 68px);
  border-bottom: var(--line);
}
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 18px;
  margin-bottom: 34px;
  border-bottom: var(--line);
}
.module-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.module-card {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  border: var(--line);
  box-shadow: var(--shadow);
  background: var(--ink);
  color: white;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.module-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .42; filter: grayscale(1) contrast(1.2); transition: transform .4s ease, opacity .4s ease; }
.module-card:hover img { transform: scale(1.07); opacity: .7; }
.module-card span, .card-grid span, .archive-grid span {
  width: max-content;
  background: var(--yellow);
  color: var(--ink);
  border: var(--line);
  padding: 6px 9px;
  font-family: var(--display);
}
.module-card span {
  position: absolute;
  top: 22px;
  left: 22px;
  z-index: 2;
}
.card-grid span,
.archive-grid span {
  position: relative;
}
.module-card h3, .module-card p { position: relative; }
.module-card h3 { margin: 16px 0; font-size: clamp(34px, 4vw, 58px); }
.module-card p { margin: 0; font-weight: 900; line-height: 1.4; }

.schedule-section figure, .calendar-link > img {
  margin: 0;
  border: var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
  background: var(--white);
}
.pill-grid, .keyword-wall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.pill-grid span, .keyword-wall span {
  border: var(--line);
  box-shadow: 5px 5px 0 var(--ink);
  background: var(--white);
  padding: 18px;
  font-family: var(--display);
  text-align: center;
}

.page-hero:not(.split) { display: block; min-height: auto; }
.page-hero.yellow-hero { background: var(--yellow); }
.page-hero.split img { min-height: 520px; background: var(--ink); }
.statement.red { background: var(--red); color: white; }
.statement.yellow { background: var(--yellow); }

.card-grid { display: grid; gap: 18px; }
.card-grid.two { grid-template-columns: repeat(2, 1fr); }
.card-grid.three { grid-template-columns: repeat(3, 1fr); }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.card-grid article, .bento article, .feature-list article, .archive-grid article, .press-list article, .stats article, .kit-grid article {
  border: var(--line);
  box-shadow: var(--shadow);
  background: var(--white);
  padding: 24px;
}
.card-grid article:nth-child(even), .archive-grid article:nth-child(even), .kit-grid article:nth-child(even) { background: var(--ink); color: white; }
.card-grid h3, .bento h3, .feature-list h3, .archive-grid h3, .kit-grid h3 { margin: 14px 0; font-size: clamp(24px, 3vw, 40px); }
.card-grid p, .bento p, .feature-list p, .archive-grid p, .press-list p, .kit-grid p { margin: 0; font-weight: 800; line-height: 1.55; }

.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.bento .wide { grid-column: span 2; background: var(--yellow); }
.bento h2 { margin-bottom: 18px; font-size: clamp(34px, 5vw, 66px); }
.feature-list { background: var(--yellow); }
.feature-list > div { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.calendar-link { background: var(--soft); }
.calendar-link .primary-button { margin-top: 24px; }
.keyword-wall { background: var(--ink); }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.timeline article {
  border: var(--line);
  box-shadow: var(--shadow);
  background: var(--white);
  padding: 24px;
}
.timeline time { font-family: var(--display); color: var(--red); }
.timeline h3 { margin: 16px 0; font-size: 30px; }
.timeline p { margin: 0; font-weight: 800; line-height: 1.5; }
.archive-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; background: var(--yellow); }
.press-list { display: grid; gap: 18px; }
.press-list article { display: grid; grid-template-columns: 170px 1fr auto; gap: 24px; align-items: center; }
.press-list time { font-family: var(--display); color: var(--red); }
.press-list h2 { font-size: clamp(28px, 4vw, 56px); }
.press-list a { background: var(--yellow); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; background: var(--ink); color: white; }
.stats article { text-align: center; color: var(--ink); background: var(--yellow); }
.stats strong { display: block; font: 900 clamp(50px, 8vw, 110px) var(--display); line-height: .85; }
.stats span { font-weight: 900; }
.kit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.kit-grid button { margin-top: 18px; background: var(--yellow); }
.contact-block { background: var(--blue); color: white; }

.map-stage {
  position: relative;
  min-height: 480px;
  border: var(--line);
  box-shadow: var(--shadow);
  background:
    linear-gradient(35deg, transparent 47%, var(--ink) 48%, var(--ink) 49%, transparent 50%),
    linear-gradient(145deg, transparent 49%, rgba(0, 85, 255, .35) 50%, transparent 51%),
    var(--soft);
  overflow: hidden;
}
.map-stage::before {
  content: "BEIJING";
  position: absolute;
  top: 28px;
  left: 28px;
  font: 900 clamp(58px, 9vw, 130px) var(--display);
  color: rgba(26,26,26,.08);
}
.node {
  position: absolute;
  display: grid;
  place-items: center;
  min-width: 86px;
  min-height: 58px;
  border: var(--line);
  box-shadow: 5px 5px 0 var(--ink);
  background: var(--white);
  font-family: var(--display);
}
.node-798 { left: 42%; top: 38%; background: var(--red); color: white; }
.node-sl { left: 18%; top: 22%; background: var(--yellow); }
.node-bh { left: 26%; bottom: 20%; }
.node-wj { right: 12%; top: 18%; background: var(--blue); color: white; }
.node-nn { right: 16%; bottom: 18%; background: var(--yellow); }

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(18px, 4vw, 48px);
  border-top: 8px solid var(--yellow);
  background: var(--ink);
  color: var(--paper);
}
.site-footer strong { color: var(--yellow); font: 900 26px var(--display); }
.site-footer p { margin: 8px 0 0; font-weight: 800; }
.site-footer a {
  align-self: start;
  padding: 10px 0;
  font-family: var(--display);
  font-weight: 900;
  color: var(--yellow);
}

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1180px) {
  .top-nav { max-width: 70vw; overflow-x: auto; overflow-y: visible; }
  .module-grid, .card-grid.four, .kit-grid, .timeline { grid-template-columns: repeat(2, 1fr); }
  .home-hero, .page-hero, .opening-grid, .schedule-section, .calendar-link, .city-map-page { grid-template-columns: 1fr; }
  .home-hero .hero-copy, .page-hero > div { border-right: 0; border-bottom: var(--line); }
}
@media (max-width: 760px) {
  .site-header { align-items: stretch; gap: 10px; }
  .brand strong { display: none; }
  .top-nav { max-width: calc(100vw - 80px); gap: 8px; }
  .top-nav > a,
  .top-nav .nav-parent {
    min-width: 72px;
    min-height: 42px;
    font-size: 15px;
  }
  .nav-menu {
    right: auto;
    left: 0;
  }
  .theme-band, .card-grid.two, .card-grid.three, .card-grid.four, .bento, .feature-list > div, .archive-grid, .stats, .kit-grid, .timeline, .pill-grid, .keyword-wall { grid-template-columns: 1fr; }
  .bento .wide { grid-column: span 1; }
  .press-list article { grid-template-columns: 1fr; }
  .home-hero h1, .page-hero h1 { font-size: clamp(58px, 17vw, 92px); }
  .hero-poster, .page-hero.split img, .map-stage { min-height: 380px; }
}