:root {
  color-scheme: light;
  --ink: #10131a;
  --ink-2: #1a1f2a;
  --paper: #f2eee6;
  --paper-2: #e8e1d6;
  --white: #fffdf8;
  --muted: #6f7076;
  --line: rgba(16, 19, 26, .14);
  --amber: #f4b318;
  --orange: #f26430;
  --teal: #69d8ce;
  --red: #d74738;
  --shell: min(1500px, calc(100% - 64px));
  --shadow: 0 24px 80px rgba(12, 15, 22, .14);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; }

.sr-only {
  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;
  left: 16px;
  top: -80px;
  z-index: 1000;
  padding: 12px 18px;
  color: var(--ink);
  background: var(--amber);
  text-decoration: none;
}
.skip-link:focus { top: 16px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  color: var(--white);
  background: rgba(16, 19, 26, .97);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.header-main {
  width: var(--shell);
  min-height: 80px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  width: max-content;
  text-decoration: none;
}
.brand img { width: 52px; height: 52px; object-fit: contain; }
.brand-copy { display: grid; line-height: 1.15; }
.brand-copy strong { font-size: 22px; letter-spacing: .06em; }
.brand-copy small { margin-top: 8px; color: #b3b6bc; font-size: 10px; letter-spacing: .22em; }
.official-mark {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #d8d9dd;
  font-size: 13px;
  letter-spacing: .08em;
}
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 6px rgba(244,179,24,.12); }
.primary-nav {
  min-height: 54px;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  border-top: 1px solid rgba(255,255,255,.08);
}
.primary-nav a {
  display: grid;
  place-items: center;
  padding: 13px 10px;
  border-right: 1px solid rgba(255,255,255,.08);
  color: #d6d7da;
  font-size: 13px;
  text-align: center;
  text-decoration: none;
  transition: color .2s ease, background .2s ease;
}
.primary-nav a:hover, .primary-nav a:focus-visible, .primary-nav a.is-active { color: var(--ink); background: var(--amber); outline: none; }
.menu-toggle { display: none; }

.hero {
  position: relative;
  min-height: 760px;
  isolation: isolate;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
}
.hero-media, .hero-overlay { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-overlay {
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(10,12,17,.97) 0%, rgba(10,12,17,.84) 38%, rgba(10,12,17,.18) 72%, rgba(10,12,17,.5) 100%),
    linear-gradient(0deg, rgba(10,12,17,.88) 0%, transparent 35%);
}
.hero-shell {
  position: relative;
  z-index: 2;
  width: var(--shell);
  min-height: 760px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  align-items: end;
  gap: 8vw;
  padding: 104px 0 72px;
}
.hero-copy { max-width: 900px; }
.eyebrow {
  margin: 0 0 18px;
  color: var(--orange);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
}
.hero .eyebrow { color: var(--amber); }
.hero h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(42px, 6.2vw, 92px);
  line-height: 1.05;
  letter-spacing: -.035em;
}
.hero-lead {
  max-width: 760px;
  margin: 28px 0 0;
  color: #d2d4d8;
  font-size: clamp(16px, 1.45vw, 22px);
  line-height: 1.9;
}
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.hero-tags span { padding: 9px 14px; border: 1px solid rgba(255,255,255,.26); border-radius: 999px; font-size: 12px; color: #eaebed; background: rgba(12,15,21,.35); }
.hero-program {
  align-self: end;
  padding: 28px;
  border-top: 4px solid var(--amber);
  background: rgba(16,19,26,.84);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.program-label, .program-note { display: block; color: #aaaeb6; font-size: 11px; letter-spacing: .12em; }
.hero-program strong { display: block; margin: 16px 0 10px; font-size: 34px; }
.hero-program p { margin: 0 0 20px; color: #e4e5e7; font-size: 14px; }

.brand-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--amber);
  border-bottom: 1px solid rgba(16,19,26,.16);
}
.brand-strip > div { min-height: 112px; padding: 24px 4vw; display: grid; align-content: center; border-right: 1px solid rgba(16,19,26,.18); }
.brand-strip strong { font-size: 16px; }
.brand-strip span { margin-top: 5px; font-size: 12px; color: rgba(16,19,26,.68); }

.section { padding: 112px max(32px, calc((100vw - 1500px) / 2)); scroll-margin-top: 135px; }
.section-dark { color: var(--white); background: var(--ink); }
.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr);
  gap: 8vw;
  align-items: end;
  margin-bottom: 54px;
}
.section-heading h2, .plots-heading h2, .faq-intro h2, .about h2, .guide-copy h2, .collection h2 {
  margin: 0;
  font-size: clamp(36px, 5vw, 70px);
  line-height: 1.08;
  letter-spacing: -.035em;
}
.section-heading > p, .plots-heading > p, .faq-intro > p { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.9; }
.on-dark > p { color: #aeb2ba; }

.poster-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}
.poster-card { min-width: 0; }
.poster-card-featured { grid-column: span 2; grid-row: span 2; }
.poster-media { position: relative; overflow: hidden; aspect-ratio: 2 / 3; background: #090b10; border-radius: 3px; }
.poster-media::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 0 1px rgba(255,255,255,.08); pointer-events: none; }
.poster-media img { width: 100%; height: 100%; object-fit: contain; transition: transform .5s ease; }
.poster-card:hover img { transform: scale(1.018); }
.poster-copy { padding: 18px 2px 4px; }
.poster-copy span { color: var(--amber); font-size: 11px; letter-spacing: .08em; }
.poster-copy h3 { margin: 8px 0 0; font-size: 18px; line-height: 1.4; }
.poster-copy p { margin: 12px 0 0; color: #aeb2ba; font-size: 14px; }
.poster-card-featured .poster-copy h3 { font-size: 28px; }

.newsroom { background: var(--paper); }
.wide-story-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 20px; }
.wide-story { position: relative; min-height: 315px; overflow: hidden; color: var(--white); background: var(--ink); }
.wide-story-large { grid-row: span 2; min-height: 650px; }
.wide-story img { width: 100%; height: 100%; object-fit: cover; }
.wide-story::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(8,10,14,.92), rgba(8,10,14,0) 62%); }
.wide-story-copy { position: absolute; z-index: 1; left: 0; right: 0; bottom: 0; padding: 28px; }
.wide-story-copy span { color: var(--amber); font-size: 11px; letter-spacing: .1em; }
.wide-story-copy h3 { margin: 8px 0 0; font-size: clamp(22px, 2.5vw, 42px); line-height: 1.15; }
.wide-story-copy p { max-width: 520px; margin: 12px 0 0; color: #d1d3d6; }

.collection {
  display: grid;
  grid-template-columns: minmax(320px, .7fr) minmax(0, 1.3fr);
  gap: 7vw;
  color: var(--white);
  background: var(--ink-2);
}
.collection-intro { position: sticky; top: 170px; align-self: start; }
.collection-intro > p:not(.eyebrow) { color: #b9bcc2; line-height: 1.9; }
.topic-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.topic-chips span { padding: 8px 12px; border: 1px solid rgba(255,255,255,.14); border-radius: 99px; color: #d8dade; font-size: 12px; }
.collection-rail { display: grid; grid-template-columns: repeat(2, 1fr); gap: 36px 22px; }
.rail-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  background: #f1ede5;
  border: 1px solid rgba(255, 255, 255, .12);
}
.rail-card h3 { margin: 15px 0 0; font-size: 20px; line-height: 1.3; }
.rail-card p { margin: 5px 0 0; color: #8f949d; font-size: 12px; }

.viewing-guide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 850px;
  padding-top: 0;
  padding-bottom: 0;
  padding-left: 0;
  padding-right: 0;
  background: var(--white);
}
.guide-visual { position: relative; min-height: 850px; overflow: hidden; background: #17130f; }
.guide-image { position: absolute; overflow: hidden; background: #17130f; box-shadow: var(--shadow); }
.guide-image img { width: 100%; height: 100%; object-fit: contain; }
.guide-image-main { inset: 60px 20% 60px 8%; }
.guide-image-small { width: 32%; right: 4%; bottom: 38px; aspect-ratio: 4/5; border: 12px solid var(--white); }
.guide-copy { padding: 110px 8vw; align-self: center; }
.guide-copy > p:not(.eyebrow) { color: var(--muted); font-size: 16px; line-height: 1.95; }
.guide-facts { display: grid; grid-template-columns: repeat(3, 1fr); margin: 42px 0 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.guide-facts div { padding: 22px 14px; border-right: 1px solid var(--line); }
.guide-facts div:first-child { padding-left: 0; }
.guide-facts div:last-child { border-right: 0; }
.guide-facts dt { color: var(--muted); font-size: 11px; }
.guide-facts dd { margin: 7px 0 0; font-size: 14px; font-weight: 700; }

.ranking { background: var(--paper-2); }
.ranking-board { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.ranking-board article { display: grid; grid-template-columns: 180px 1fr; min-height: 260px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.22); }
.ranking-board img { width: 100%; height: 100%; object-fit: contain; background: #18191d; }
.ranking-board article > div { display: grid; align-content: center; padding: 28px; }
.ranking-board span { color: var(--orange); font-size: 11px; letter-spacing: .1em; }
.ranking-board h3 { margin: 10px 0 0; font-size: 24px; line-height: 1.2; }
.ranking-board p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }

.plots { color: var(--white); background: #10131a; }
.plots-heading { display: grid; grid-template-columns: .8fr 1.2fr; gap: 6vw; align-items: end; margin-bottom: 56px; }
.plots-heading .eyebrow { grid-column: 1 / -1; margin-bottom: -20px; }
.plots-heading > p { color: #abb0b8; }
.plot-notes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.plot-notes article { position: relative; min-height: 640px; overflow: hidden; background: #0b0d12; }
.plot-notes img { width: 100%; height: 100%; object-fit: cover; }
.plot-notes article::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(7,9,13,.96), rgba(7,9,13,.08) 70%); }
.plot-notes article > div { position: absolute; z-index: 1; left: 0; right: 0; bottom: 0; padding: 30px; }
.plot-notes span { color: var(--amber); font-size: 11px; }
.plot-notes h3 { margin: 7px 0 0; font-size: 26px; line-height: 1.2; }
.plot-notes p { margin: 12px 0 0; color: #c1c4ca; font-size: 14px; }

.discovery-map {
  color: var(--white);
  background:
    radial-gradient(circle at 88% 16%, rgba(105,216,206,.18), transparent 28%),
    linear-gradient(135deg, #10231f 0%, #111820 58%, #10131a 100%);
}
.geo-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
  gap: 8vw;
  align-items: end;
}
.geo-heading h2 { margin: 0; font-size: clamp(36px, 5vw, 70px); line-height: 1.08; letter-spacing: -.035em; }
.geo-heading > p { margin: 0; color: #b8c4c2; line-height: 1.9; }
.geo-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 56px; border-top: 1px solid rgba(255,255,255,.16); border-left: 1px solid rgba(255,255,255,.16); }
.geo-grid article { min-height: 300px; padding: 36px; border-right: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); background: rgba(255,255,255,.025); }
.geo-grid span { color: var(--teal); font-size: 11px; letter-spacing: .13em; }
.geo-grid h3 { margin: 30px 0 0; font-size: 26px; line-height: 1.25; }
.geo-grid p { margin: 18px 0 0; color: #b8c1c3; line-height: 1.9; }
.geo-note { margin: 28px 0 0; color: #879593; font-size: 12px; }

.about {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 7vw;
  background: var(--white);
}
.about-mark { min-height: 520px; display: grid; place-items: center; align-content: center; border-radius: 50% 50% 8px 8px; background: var(--ink); color: var(--amber); }
.about-mark img { width: 58%; max-width: 220px; }
.about-mark span { margin-top: 22px; font-size: 11px; letter-spacing: .28em; }
.about-lead { margin: 26px 0 0; font-size: clamp(20px, 2.2vw, 30px); line-height: 1.65; }
.about-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 38px; color: var(--muted); }
.brand-principles { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 42px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.brand-principles div { padding: 24px 18px; border-right: 1px solid var(--line); }
.brand-principles div:first-child { padding-left: 0; }
.brand-principles div:last-child { border-right: 0; }
.brand-principles strong { display: block; font-size: 20px; }
.brand-principles span { color: var(--muted); font-size: 12px; }

.faq { display: grid; grid-template-columns: .7fr 1.3fr; gap: 8vw; background: var(--paper); }
.faq-list { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; padding: 24px 56px 24px 0; cursor: pointer; list-style: none; font-size: 18px; font-weight: 700; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 8px; top: 20px; color: var(--orange); font-size: 26px; font-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq details p { max-width: 780px; margin: -5px 0 24px; color: var(--muted); line-height: 1.85; }

.site-footer { padding: 70px max(32px, calc((100vw - 1500px) / 2)); color: #c4c7cc; background: #090b0f; }
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-brand img { width: 58px; height: 58px; object-fit: contain; }
.footer-brand div { display: grid; }
.footer-brand strong { color: var(--white); font-size: 24px; }
.footer-brand span { color: #818690; font-size: 12px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 12px 28px; margin-top: 38px; padding: 24px 0; border-top: 1px solid rgba(255,255,255,.1); border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-nav a { color: #b8bbc1; font-size: 13px; text-decoration: none; }
.footer-nav a:hover, .footer-nav a:focus-visible { color: var(--amber); }
.footer-note { display: grid; grid-template-columns: 1fr auto; gap: 50px; margin-top: 28px; color: #777d87; font-size: 12px; }
.footer-note p { margin: 0; }

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 50;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  color: var(--ink);
  background: var(--amber);
  box-shadow: 0 12px 36px rgba(0,0,0,.22);
  cursor: pointer;
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition: .25s ease;
}
.back-to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }

@media (max-width: 1180px) {
  :root { --shell: min(100% - 40px, 1180px); }
  .primary-nav { grid-template-columns: repeat(4, 1fr); }
  .hero-shell { grid-template-columns: 1fr; }
  .hero-program { width: min(100%, 420px); }
  .poster-grid { grid-template-columns: repeat(3, 1fr); }
  .poster-card-featured { grid-column: span 1; grid-row: auto; }
  .collection { grid-template-columns: 1fr; }
  .collection-intro { position: static; }
  .about { grid-template-columns: 280px 1fr; }
}

@media (max-width: 820px) {
  :root { --shell: calc(100% - 28px); }
  .header-main { min-height: 70px; grid-template-columns: 1fr auto; }
  .brand img { width: 46px; height: 46px; }
  .brand-copy strong { font-size: 19px; }
  .brand-copy small, .official-mark { display: none; }
  .menu-toggle {
    display: grid;
    width: 44px;
    height: 44px;
    place-content: center;
    gap: 5px;
    border: 1px solid rgba(255,255,255,.18);
    color: var(--white);
    background: transparent;
  }
  .menu-toggle span:not(.sr-only) { width: 19px; height: 1px; background: currentColor; transition: .2s ease; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .primary-nav {
    position: fixed;
    inset: 70px 0 auto;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    display: none;
    grid-template-columns: 1fr;
    background: #10131a;
    border-top: 1px solid rgba(255,255,255,.12);
  }
  .primary-nav.is-open { display: grid; }
  .primary-nav a { min-height: 54px; justify-items: start; padding-left: 22px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.08); }
  .hero, .hero-shell { min-height: 700px; }
  .hero-shell { padding: 84px 0 44px; gap: 36px; }
  .hero h1 { font-size: clamp(38px, 11vw, 62px); }
  .hero-overlay { background: linear-gradient(0deg, rgba(9,11,16,.98) 0%, rgba(9,11,16,.72) 68%, rgba(9,11,16,.4)); }
  .hero-program { padding: 20px; }
  .brand-strip { grid-template-columns: 1fr 1fr; }
  .brand-strip > div { min-height: 92px; padding: 18px 20px; border-bottom: 1px solid rgba(16,19,26,.14); }
  .section { padding: 76px 20px; scroll-margin-top: 70px; }
  .section-heading, .plots-heading, .faq, .geo-heading { grid-template-columns: 1fr; gap: 24px; }
  .plots-heading .eyebrow { grid-column: auto; margin-bottom: 0; }
  .poster-grid { grid-template-columns: repeat(2, 1fr); gap: 26px 12px; }
  .poster-copy h3, .poster-card-featured .poster-copy h3 { font-size: 16px; }
  .poster-copy p { display: none; }
  .wide-story-grid { grid-template-columns: 1fr; }
  .wide-story, .wide-story-large { min-height: 360px; grid-row: auto; }
  .collection-rail { gap: 28px 12px; }
  .rail-card h3 { font-size: 16px; }
  .viewing-guide { grid-template-columns: 1fr; }
  .guide-visual { min-height: 620px; }
  .guide-copy { padding: 76px 20px; }
  .guide-facts { grid-template-columns: 1fr; }
  .guide-facts div, .guide-facts div:first-child { padding: 14px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .guide-facts div:last-child { border-bottom: 0; }
  .ranking-board { grid-template-columns: 1fr; }
  .ranking-board article { grid-template-columns: 125px 1fr; min-height: 190px; }
  .ranking-board h3 { font-size: 18px; }
  .plot-notes { grid-template-columns: 1fr; }
  .plot-notes article { min-height: 590px; }
  .geo-grid { grid-template-columns: 1fr; margin-top: 38px; }
  .geo-grid article { min-height: auto; padding: 28px 24px; }
  .about { grid-template-columns: 1fr; }
  .about-mark { min-height: 360px; }
  .about-columns, .brand-principles { grid-template-columns: 1fr; }
  .brand-principles div, .brand-principles div:first-child { padding: 18px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .brand-principles div:last-child { border-bottom: 0; }
  .footer-note { grid-template-columns: 1fr; gap: 18px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 38px; }
  .hero-lead { font-size: 15px; }
  .brand-strip { grid-template-columns: 1fr; }
  .section-heading h2, .plots-heading h2, .faq-intro h2, .about h2, .guide-copy h2, .collection h2 { font-size: 35px; }
  .guide-visual { min-height: 500px; }
  .guide-image-main { inset: 40px 16% 40px 4%; }
  .guide-image-small { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}