:root {
  --bg: #08080d;
  --surface: rgba(18, 18, 29, .78);
  --text: #f7f4ee;
  --muted: #aaa6b4;
  --gold: #f4c874;
  --violet: #9b78ff;
  --ice: #6ee7ff;
  --ease-out: cubic-bezier(.2, .8, .2, 1);
  color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { overflow-x: hidden; overflow-x: clip; scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; overflow-x: hidden; overflow-x: clip; background: var(--bg); color: var(--text); }
img { display: block; max-width: 100%; }

body {
  font-family: "Noto Sans SC", "Microsoft YaHei UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button { font: inherit; }
[id] { scroll-margin-top: 6.5rem; }
::selection { background: var(--gold); color: #08080d; }

.skip-link {
  position: fixed;
  top: .75rem;
  left: .75rem;
  z-index: 100;
  padding: .7rem 1rem;
  background: var(--text);
  color: var(--bg);
  transform: translateY(-150%);
  transition: transform .2s var(--ease-out);
}
.skip-link:focus { transform: translateY(0); }

.runway-atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
  background:
    linear-gradient(90deg, transparent 49.9%, rgba(255,255,255,.045) 50%, transparent 50.1%),
    radial-gradient(circle at 50% -15%, rgba(155,120,255,.2), transparent 42%);
}
.runway-atmosphere__beam {
  position: absolute;
  top: -15vh;
  left: 50%;
  width: min(80vw, 70rem);
  height: 110vh;
  background: linear-gradient(110deg, transparent 28%, rgba(110,231,255,.045) 48%, rgba(244,200,116,.06) 52%, transparent 72%);
  transform: translateX(-50%) perspective(50rem) rotateX(58deg);
  filter: blur(2rem);
}
.runway-atmosphere__grain {
  position: absolute;
  inset: 0;
  opacity: .08;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.86' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
}

.premium-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  min-height: calc(4.5rem + env(safe-area-inset-top, 0px));
  padding-top: calc(.85rem + env(safe-area-inset-top, 0px));
  padding-right: calc(clamp(1rem, 4vw, 4rem) + env(safe-area-inset-right, 0px));
  padding-bottom: .85rem;
  padding-left: calc(clamp(1rem, 4vw, 4rem) + env(safe-area-inset-left, 0px));
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
  background: rgba(8,8,13,.78);
  backdrop-filter: blur(18px);
}
.premium-nav a { text-decoration: none; }
.premium-nav__brand { display: inline-flex; align-items: center; gap: .65rem; width: fit-content; font-weight: 700; letter-spacing: -.03em; }
.premium-nav__signal { width: .7rem; height: .7rem; border-radius: 50%; background: var(--gold); box-shadow: 0 0 1.2rem var(--gold); }
.premium-nav__links { display: flex; gap: clamp(1.2rem, 3vw, 3rem); font-size: .75rem; color: var(--muted); letter-spacing: .08em; }
.premium-nav__links a, .premium-footer a { transition: color .2s ease; }
.premium-nav__links a:hover, .premium-footer a:hover { color: var(--gold); }
.premium-nav__cta { justify-self: end; padding: .65rem 1rem; border: 1px solid rgba(244,200,116,.55); color: var(--gold); font-size: .75rem; letter-spacing: .08em; }

.premium-hero {
  position: relative;
  min-height: 100svh;
  padding: clamp(8rem, 16vh, 12rem) clamp(1.2rem, 6vw, 7rem) 5rem;
  display: grid;
  grid-template-columns: minmax(5rem, .25fr) minmax(20rem, 2fr) minmax(5rem, .3fr);
  align-items: center;
  isolation: isolate;
}
.premium-hero > :not(.neural-trails) { position: relative; z-index: 2; }
.neural-trails {
  --trail-shift-x: 0px;
  --trail-shift-y: 0px;
  position: absolute;
  inset: 4rem 0 0 42%;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  transform: translate3d(var(--trail-shift-x), var(--trail-shift-y), 0);
  opacity: .72;
  animation: neural-trails-enter 1.2s ease-out both;
}
.neural-trail {
  --trail-color: 244 200 116;
  position: absolute;
  left: 8%;
  bottom: -18%;
  width: 92%;
  height: 74%;
  border-top: 1px solid rgb(var(--trail-color) / .24);
  border-radius: 50% 50% 0 0;
  transform-origin: 100% 100%;
  filter: drop-shadow(0 0 12px rgb(var(--trail-color) / .16));
}
.neural-trail::before {
  content: "";
  position: absolute;
  inset: -1px 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgb(var(--trail-color) / .3), transparent 78%);
}
.neural-trail::after {
  content: "";
  position: absolute;
  top: -.2rem;
  left: 8%;
  width: .38rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgb(var(--trail-color));
  box-shadow: 0 0 1.25rem rgb(var(--trail-color) / .7);
  animation: neural-node-run var(--trail-duration, 10s) linear infinite;
}
.neural-trail[data-world="commerce"] { transform: rotate(-9deg) scale(.96); --trail-duration: 8s; }
.neural-trail[data-world="oriental"] { --trail-color: 155 120 255; transform: rotate(1deg) scale(.84); --trail-duration: 10s; animation-delay: -.8s; }
.neural-trail[data-world="romance"] { --trail-color: 110 231 255; transform: rotate(10deg) scale(.72); --trail-duration: 12s; animation-delay: -1.6s; }
@keyframes neural-trails-enter { from { opacity: 0; } to { opacity: .72; } }
@keyframes neural-node-run { from { left: 5%; opacity: 0; } 15%, 82% { opacity: .8; } to { left: 86%; opacity: 0; } }
.premium-hero::before {
  content: "03";
  position: absolute;
  right: -2vw;
  top: 9vh;
  z-index: -1;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(16rem, 44vw, 42rem);
  line-height: .8;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,.06);
}
.premium-hero__index { align-self: start; padding-top: 3rem; font: 600 .68rem/1.2 Consolas, monospace; color: var(--gold); letter-spacing: .18em; writing-mode: vertical-rl; }
.eyebrow { margin: 0 0 1.25rem; font: 600 .68rem/1.3 Consolas, monospace; letter-spacing: .2em; color: var(--gold); }
.premium-hero h1 {
  max-width: 9em;
  margin: 0;
  font-family: Georgia, "Songti SC", serif;
  font-size: clamp(3.5rem, 6.4vw, 7rem);
  font-weight: 400;
  line-height: .92;
  letter-spacing: -.075em;
}
.premium-hero h1 { color: var(--gold); }
.premium-hero__lead { max-width: 34rem; margin: 2rem 0 0 clamp(0rem, 8vw, 9rem); color: var(--muted); font-size: clamp(.95rem, 1.3vw, 1.2rem); }
.premium-hero__facts { max-width: 38rem; margin: 2.5rem 0 0 clamp(0rem, 8vw, 9rem); padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); list-style: none; border-top: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); }
.premium-hero__facts li { min-width: 0; padding: .9rem clamp(.55rem, 1.5vw, 1.1rem); display: flex; flex-direction: column; gap: .25rem; }
.premium-hero__facts li + li { border-left: 1px solid rgba(255,255,255,.12); }
.premium-hero__facts strong { color: var(--gold); font: 400 clamp(1.2rem, 2vw, 1.8rem)/1 Georgia, "Songti SC", serif; }
.premium-hero__facts span { color: var(--muted); font: .62rem/1.35 Consolas, monospace; letter-spacing: .08em; }
.premium-hero__rail { justify-self: end; display: flex; gap: .8rem; writing-mode: vertical-rl; font: .6rem/1 Consolas, monospace; color: rgba(255,255,255,.34); letter-spacing: .2em; }
.premium-hero__rail span { padding: .9rem .5rem; border-left: 1px solid rgba(255,255,255,.12); }
.premium-hero__scroll { position: absolute; left: clamp(1.2rem, 6vw, 7rem); bottom: 2rem; text-decoration: none; color: var(--muted); font-size: .72rem; letter-spacing: .12em; }
.premium-hero > .premium-hero__scroll { position: absolute; }
.premium-hero__scroll span { margin-left: 1rem; color: var(--gold); }

.pricing {
  padding: clamp(5rem, 10vw, 10rem) clamp(1.2rem, 6vw, 7rem);
  display: grid;
  grid-template-columns: minmax(14rem, .7fr) minmax(30rem, 1.3fr);
  gap: clamp(3rem, 8vw, 9rem);
  border-top: 1px solid rgba(255,255,255,.1);
}
.pricing__heading { align-self: center; }
.pricing__heading h2 { margin: 0; max-width: 7ch; font: 400 clamp(2.8rem, 5vw, 5rem)/.98 Georgia, "Songti SC", serif; letter-spacing: -.055em; }
.pricing__heading > p:last-child { max-width: 26rem; margin-top: 2rem; color: var(--muted); }
.pricing__options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: stretch; }
.price-ticket { min-height: 32rem; padding: clamp(1.6rem, 3vw, 3rem); display: flex; flex-direction: column; border: 1px solid rgba(255,255,255,.16); }
.price-ticket--single { margin: 2rem -1px 0 0; background: #eae7df; color: #101016; }
.price-ticket--bundle { background: var(--gold); color: #15100a; box-shadow: 0 2rem 7rem rgba(244,200,116,.13); }
.price-ticket__topline { display: flex; justify-content: space-between; padding-bottom: 1rem; border-bottom: 1px solid currentColor; font-size: .72rem; letter-spacing: .14em; }
.price-ticket__old { margin: 2.5rem 0 0; font-size: .75rem; text-decoration: line-through; opacity: .58; }
.price-ticket__price { margin: .25rem 0 1.2rem; font: 400 clamp(5rem, 9vw, 8rem)/.9 Georgia, serif; letter-spacing: -.07em; }
.price-ticket__price span { font: 600 1rem/1 Consolas, monospace; vertical-align: top; }
.price-ticket > p:not([class]) { max-width: 22rem; font-size: .85rem; opacity: .7; }
.price-ticket ul { padding: 0; margin: 0; list-style: none; font-size: .86rem; }
.price-ticket li { padding: .55rem 0; border-bottom: 1px solid rgba(0,0,0,.16); }
.price-ticket li::before { content: "✓"; margin-right: .7rem; }
.price-ticket a { margin-top: auto; padding-top: 1rem; display: flex; justify-content: space-between; border-top: 1px solid currentColor; text-decoration: none; font-weight: 700; }

.premium-chapter {
  --chapter-accent: var(--ice);
  --chapter-glow: rgba(110,231,255,.12);
  position: relative;
  padding: clamp(7rem, 13vw, 13rem) clamp(1rem, 3vw, 3rem);
  background: linear-gradient(180deg, transparent, var(--chapter-glow) 10%, transparent 34%);
}
.premium-chapter--guofeng { --chapter-accent: #f4c874; --chapter-glow: rgba(244,200,116,.13); }
.premium-chapter--lolita { --chapter-accent: #ff88bd; --chapter-glow: rgba(255,136,189,.13); }
.chapter-header {
  max-width: 92rem;
  margin: 0 auto clamp(3rem, 6vw, 6rem);
  display: grid;
  grid-template-columns: .45fr 1fr .75fr;
  gap: clamp(1.5rem, 4vw, 5rem);
  align-items: end;
}
.chapter-header__number { align-self: start; margin: .4rem 0 0; font: .65rem/1.4 Consolas, monospace; letter-spacing: .16em; color: var(--chapter-accent); }
.chapter-header .eyebrow { color: var(--chapter-accent); }
.chapter-header h2 { margin: 0; font: 400 clamp(4rem, 10vw, 9rem)/.82 Georgia, "Songti SC", serif; letter-spacing: -.07em; }
.chapter-header > p:last-child { margin: 0; padding-left: 1.5rem; border-left: 1px solid var(--chapter-accent); color: var(--muted); }

.premium-gallery {
  max-width: 100rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-flow: dense;
  grid-auto-rows: clamp(12rem, 20vw, 21rem);
  gap: clamp(.5rem, 1vw, 1rem);
}
.premium-card {
  position: relative;
  min-height: 0;
  overflow: hidden;
  background: #14141c;
  color: var(--text);
  text-decoration: none;
  outline-offset: 4px;
}
.premium-card--wide { grid-column: span 2; }
.premium-card--tall { grid-row: span 2; }
.premium-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease-out), filter .5s ease; }
.premium-card span {
  position: absolute;
  left: .75rem;
  right: .75rem;
  bottom: .75rem;
  padding: .5rem .6rem;
  display: flex;
  background: rgba(8,8,13,.74);
  font: .6rem/1 Consolas, monospace;
  letter-spacing: .12em;
  backdrop-filter: blur(8px);
}
.premium-card::after { content: "↗"; position: absolute; right: 1.35rem; bottom: 1.1rem; font-size: .7rem; color: var(--chapter-accent); }
.premium-card:hover img, .premium-card:focus-visible img { transform: scale(1.035); filter: saturate(1.1) contrast(1.03); }

.purchase-finale { min-height: 90svh; padding: clamp(7rem, 15vw, 14rem) clamp(1.2rem, 8vw, 9rem); display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; background: radial-gradient(circle at 50% 50%, rgba(155,120,255,.18), transparent 42%); }
.purchase-finale h2 { margin: 0; font: 400 clamp(3.2rem, 8vw, 8rem)/.94 Georgia, "Songti SC", serif; letter-spacing: -.06em; }
.purchase-finale > p:not(.eyebrow) { color: var(--muted); }
.purchase-finale a { margin-top: 2rem; min-width: min(100%, 25rem); padding: 1.1rem 1.3rem; display: flex; justify-content: space-between; background: var(--text); color: var(--bg); text-decoration: none; font-weight: 700; }
.premium-footer { padding: 1.5rem clamp(1.2rem, 4vw, 4rem); display: flex; justify-content: space-between; gap: 1rem; border-top: 1px solid rgba(255,255,255,.1); color: var(--muted); font: .64rem/1.4 Consolas, monospace; letter-spacing: .12em; }
.premium-footer a { text-decoration: none; }

.js [data-reveal] { opacity: 0; transform: translateY(1rem); filter: blur(.2rem); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out), filter .7s var(--ease-out); }
.js [data-reveal].is-visible { opacity: 1; transform: none; filter: none; }

.premium-lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  width: 100%;
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding-top: calc(clamp(1rem, 4vw, 4rem) + env(safe-area-inset-top, 0px));
  padding-right: calc(clamp(1rem, 4vw, 4rem) + env(safe-area-inset-right, 0px));
  padding-bottom: calc(clamp(1rem, 4vw, 4rem) + env(safe-area-inset-bottom, 0px));
  padding-left: calc(clamp(1rem, 4vw, 4rem) + env(safe-area-inset-left, 0px));
  display: none;
  place-items: center;
  border: 0;
  background: rgba(5,5,9,.94);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  overflow: hidden;
  overscroll-behavior: contain;
  transition: opacity .25s ease, visibility .25s ease;
  touch-action: pan-y;
}
.premium-lightbox[open], .premium-lightbox.is-open { display: grid; }
.premium-lightbox.is-open { opacity: 1; visibility: visible; pointer-events: auto; }
.premium-lightbox::backdrop { background: transparent; }
.premium-lightbox__panel { position: relative; width: min(72rem, calc(100% - 1rem)); height: min(50rem, calc(100% - 1rem)); min-height: 0; display: grid; grid-template-columns: 3.5rem minmax(0, 1fr) 3.5rem; align-items: center; background: #09090f; box-shadow: 0 2rem 8rem rgba(0,0,0,.55); }
.premium-lightbox figure { min-height: 0; height: 100%; margin: 0; display: grid; grid-template-rows: minmax(0, 1fr) auto; justify-items: center; }
.premium-lightbox figure img { width: 100%; height: 100%; object-fit: contain; }
.premium-lightbox figcaption { padding-top: .8rem; color: var(--muted); font: .68rem/1.3 Consolas, monospace; letter-spacing: .12em; }
.premium-lightbox button { border: 0; background: transparent; color: var(--text); cursor: pointer; transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease; }
.premium-lightbox button:hover { color: var(--gold); border-color: var(--gold) !important; }
.premium-lightbox button:active { transform: scale(.92); }
.premium-lightbox button:focus-visible { outline: 2px solid var(--ice); outline-offset: 3px; }
.premium-lightbox__close { position: absolute; top: max(.5rem, env(safe-area-inset-top, 0px)); right: max(.5rem, env(safe-area-inset-right, 0px)); z-index: 1; width: 3rem; height: 3rem; font-size: 2rem; }
.premium-lightbox__arrow { width: 3rem; height: 3rem; border: 1px solid rgba(255,255,255,.24) !important; border-radius: 50%; }

@media (max-width: 960px) {
  .premium-nav { grid-template-columns: minmax(0, 1fr) auto; row-gap: .65rem; }
  .premium-nav__brand { grid-column: 1; grid-row: 1; }
  .premium-nav__cta { grid-column: 2; grid-row: 1; }
  .premium-nav__links { grid-column: 1 / -1; grid-row: 2; min-width: 0; margin-inline: calc(-1 * clamp(1rem, 4vw, 4rem)); padding-inline: clamp(1rem, 4vw, 4rem); display: flex; gap: .65rem; overflow-x: auto; overscroll-behavior-inline: contain; scrollbar-width: none; scroll-snap-type: x proximity; }
  .premium-nav__links::-webkit-scrollbar { display: none; }
  .premium-nav__links a { flex: 0 0 auto; padding: .35rem .7rem; border: 1px solid rgba(255,255,255,.14); scroll-snap-align: start; }
  .premium-hero { grid-template-columns: 3rem minmax(0, 1fr); }
  .premium-hero__rail { display: none; }
  .pricing { grid-template-columns: 1fr; }
  .pricing__heading h2 { max-width: 10ch; }
  .chapter-header { grid-template-columns: .4fr 1fr; }
  .chapter-header > p:last-child { grid-column: 2; }
  .premium-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-rows: clamp(14rem, 46vw, 28rem); }
}

@media (max-width: 520px) {
  .premium-nav { min-height: calc(4rem + env(safe-area-inset-top, 0px)); }
  .premium-nav__brand { font-size: .85rem; }
  .premium-nav__cta { padding: .5rem .65rem; }
  .premium-hero { min-height: 100svh; padding-top: 9.5rem; grid-template-columns: 1fr; align-content: center; }
  .neural-trails { inset: 7rem -8% 8% 28%; opacity: .45; }
  .neural-trail { display: none; }
  .neural-trail[data-world="commerce"] { display: block; transform: rotate(-8deg) scale(.9); }
  .premium-hero__index { display: none; }
  .premium-hero h1 { font-size: clamp(3.2rem, 15vw, 4.6rem); }
  .premium-hero__lead { margin-left: 0; }
  .premium-hero__facts { margin: 1.6rem 0 0; }
  .premium-hero__facts li { padding-inline: .45rem; }
  .premium-hero__facts span { letter-spacing: 0; }
  .pricing__options { grid-template-columns: 1fr; }
  .price-ticket--single { margin: 0 0 -1px; }
  .chapter-header { grid-template-columns: 1fr; }
  .chapter-header > p:last-child { grid-column: auto; }
  .premium-gallery { grid-template-columns: 1fr; grid-auto-rows: auto; gap: .85rem; }
  .premium-card, .premium-card--wide, .premium-card--tall { grid-column: auto; grid-row: auto; aspect-ratio: auto; }
  .premium-card img { width: 100%; height: auto; object-fit: contain; }
  .premium-lightbox__panel { grid-template-columns: 2.75rem minmax(0, 1fr) 2.75rem; }
  .premium-lightbox__arrow { width: 2.4rem; height: 2.4rem; }
  .premium-footer { flex-direction: column; align-items: center; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .neural-trails { animation: none; transform: none; }
  .neural-trail::after { animation: none; left: 68%; opacity: .5; }
  [data-reveal] { opacity: 1 !important; visibility: visible !important; transform: none !important; filter: none !important; }
}