/* A self-contained photographic explorer. Plain HTML exposes every detail. */
.xf-explorer {
  --explorer-paper: #f1ede3;
  --explorer-gold: #d7bb79;
  background: #25241f;
  color: var(--explorer-paper);
  padding: clamp(64px, 7.5vw, 112px) 0;
  scroll-margin-top: calc(var(--site-header-height, 94px) + 24px);
}
.xf-explorer *, .xf-explorer *::before, .xf-explorer *::after { box-sizing: border-box; }
.xf-explorer [hidden] { display: none !important; }
.xf-explorer__inner { width: calc(100% - 96px); max-width: 1280px; margin: 0 auto; }
.xf-explorer__heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 48px; margin-bottom: 42px; }
.xf-explorer__eyebrow { margin: 0 0 22px; color: var(--explorer-gold); font-size: 11px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; }
.xf-explorer__heading h2 { margin: 0; max-width: 740px; color: var(--explorer-paper); font-size: clamp(34px, 3.9vw, 56px); font-weight: 400; letter-spacing: -.045em; line-height: 1.12; }
.xf-explorer__heading h2 .language-zh { letter-spacing: -.025em; line-height: 1.3; }
.xf-explorer__intro { flex: 0 1 305px; margin: 0 0 4px; color: #c5c1b6; font-size: 14px; line-height: 1.85; }
.xf-explorer__body, .xf-explorer__visual, .xf-explorer__details { min-width: 0; }
.xf-explorer__machine { margin: 0; }
.xf-explorer__stage { position: relative; aspect-ratio: 3 / 2; overflow: hidden; background: #34332d; }
.xf-explorer__overview { display: block; width: 100%; height: 100%; object-fit: cover; }
.xf-explorer__machine figcaption { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding: 15px 0 19px; color: #bbb7ac; font-size: 11px; letter-spacing: .025em; }
.xf-explorer__machine figcaption strong { margin-right: 12px; color: var(--explorer-paper); letter-spacing: .12em; }
.xf-explorer__hint { display: inline-flex; align-items: center; gap: 14px; }
.xf-explorer__hotspots { position: absolute; inset: 0; }
.xf-explorer__hotspot { position: absolute; left: var(--point-x); top: var(--point-y); display: grid; place-items: center; width: 48px; height: 48px; padding: 0; border: 1px solid #f3ead2; border-radius: 50%; background: #25241ff0; color: #fff8e7; font: 600 12px/1 "Manrope", sans-serif; letter-spacing: .04em; transform: translate(-50%, -50%); cursor: pointer; box-shadow: 0 2px 15px #0004; }
.xf-explorer__hotspot::after { content: ""; position: absolute; inset: -6px; border: 1px solid #fff5; border-radius: inherit; pointer-events: none; }
.xf-explorer__hotspot:hover, .xf-explorer__hotspot.is-active { background: var(--explorer-gold); border-color: var(--explorer-gold); color: #25241f; }
.xf-explorer__tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid #ffffff29; border-bottom: 1px solid #ffffff29; }
.xf-explorer__tab { display: flex; align-items: center; justify-content: flex-start; gap: 12px; position: relative; min-height: 80px; padding: 14px 16px; border: 0; border-right: 1px solid #ffffff1c; border-radius: 0; background: transparent; color: #c5c1b6; text-align: left; font: inherit; font-size: 12px; line-height: 1.5; cursor: pointer; }
.xf-explorer__tab:last-child { border-right: 0; }
.xf-explorer__tab::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: transparent; }
.xf-explorer__tab:hover { color: #fff8e7; background: #ffffff05; }
.xf-explorer__tab.is-active { color: var(--explorer-paper); background: #ffffff06; }
.xf-explorer__tab.is-active::after { background: var(--explorer-gold); }
.xf-explorer__tab-number { flex-shrink: 0; color: var(--explorer-gold); font-size: 11px; }
.xf-explorer__details { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 28px; }
.xf-explorer__panel { display: flex; flex-direction: column; min-width: 0; padding: 26px; background: var(--explorer-paper); color: #35342d; }
.xf-explorer__panel-heading { display: flex; align-items: flex-start; gap: 16px; min-height: 61px; margin-bottom: 20px; }
.xf-explorer__panel-number { padding-top: 4px; font-size: 11px; color: #827354; }
.xf-explorer__panel h3 { margin: 0; color: #35342d; font-size: clamp(21px, 1.7vw, 25px); line-height: 1.3; font-weight: 500; letter-spacing: -.025em; }
.xf-explorer__closeup { display: flex; justify-content: center; height: 248px; overflow: hidden; margin: 0; background: #dedbd2; }
.xf-explorer__closeup img { display: block; width: 100%; height: 100%; object-fit: contain; }
.xf-explorer__metric { display: flex; align-items: baseline; flex-wrap: wrap; gap: 5px 14px; margin: 21px 0 12px; padding-bottom: 14px; border-bottom: 1px solid #35342d26; }
.xf-explorer__metric strong { color: #35342d; font-size: 19px; font-weight: 500; letter-spacing: -.02em; }
.xf-explorer__metric > span { color: #746e61; font-size: 10px; }
.xf-explorer__description { margin: 0 0 24px; color: #666155; font-size: 12px; line-height: 1.85; }
.xf-explorer__link { display: inline-flex; align-items: center; justify-content: space-between; gap: 16px; align-self: flex-start; margin-top: auto; color: #3b392f; font-size: 12px; font-weight: 600; text-decoration: none; border-bottom: 1px solid #a39471; padding-bottom: 6px; }
.xf-explorer__link:hover { color: #73613c; border-bottom-color: currentColor; }
.xf-explorer :is(button, a):focus-visible { outline: 3px solid var(--explorer-gold); outline-offset: 5px; }
.xf-explorer__panel:focus-visible { outline: 3px solid var(--explorer-gold); outline-offset: 4px; }
.xf-explorer__panel a:focus-visible { outline-color: #78602a; }
.xf-explorer.is-enhanced .xf-explorer__body { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); align-items: start; gap: 28px; }
.xf-explorer.is-enhanced .xf-explorer__details { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; margin-top: 0; }
.xf-explorer.is-enhanced .xf-explorer__panel { grid-area: 1 / 1; min-height: 606px; }
.xf-explorer.is-enhanced .xf-explorer__panel[aria-hidden="true"] { visibility: hidden; pointer-events: none; }
.xf-explorer.is-enhanced .xf-explorer__metric { display: block; }
.xf-explorer.is-enhanced .xf-explorer__metric > span { display: block; margin-top: 5px; }
.xf-explorer.is-enhanced .xf-explorer__description { min-height: 112px; }

/* Finite image reveals replay after a complete viewport exit. Content is never pre-hidden. */
@media (prefers-reduced-motion: no-preference) {
  .xf-explorer.is-in-view .xf-explorer__overview { animation: xf-explorer-overview 950ms cubic-bezier(.2, .7, .2, 1) both; }
  .xf-explorer.is-in-view .xf-explorer__panel.is-active .xf-explorer__closeup img { animation: xf-explorer-closeup 650ms cubic-bezier(.2, .7, .2, 1) both; }
  .xf-explorer.is-in-view .xf-explorer__hotspot.is-active::after { animation: xf-explorer-pulse 1350ms ease-out 2; }
  .xf-explorer__hotspot, .xf-explorer__tab { transition: color 180ms, background-color 180ms, border-color 180ms; }
}
@keyframes xf-explorer-overview { from { clip-path: inset(0 8% 0 0); filter: brightness(.8); } to { clip-path: inset(0); filter: brightness(1); } }
@keyframes xf-explorer-closeup { from { clip-path: inset(0 0 12% 0); transform: scale(1.035); } to { clip-path: inset(0); transform: scale(1); } }
@keyframes xf-explorer-pulse { from { transform: scale(.85); opacity: .8; } to { transform: scale(1.5); opacity: 0; } }
@media (max-width: 1100px) and (min-width: 961px) {
  .xf-explorer__tab { gap: 8px; padding: 13px 10px; }
  .xf-explorer__panel { padding: 22px; }
  .xf-explorer__closeup { height: 220px; }
}
@media (max-width: 960px) {
  .xf-explorer__heading { align-items: flex-start; gap: 30px; }
  .xf-explorer__intro { flex-basis: 260px; }
  .xf-explorer.is-enhanced .xf-explorer__body { grid-template-columns: 1fr; gap: 24px; }
  .xf-explorer__details { grid-template-columns: 1fr; }
  .xf-explorer.is-enhanced .xf-explorer__panel { min-height: 0; }
  .xf-explorer__panel { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0 28px; }
  .xf-explorer__panel-heading { grid-column: 2; margin-bottom: 0; }
  .xf-explorer__closeup { grid-column: 1; grid-row: 1 / 5; height: 330px; }
  .xf-explorer__metric, .xf-explorer__description, .xf-explorer__link { grid-column: 2; }
  .xf-explorer__description { font-size: 13px; }
  .xf-explorer.is-enhanced .xf-explorer__description { min-height: 120px; }
  .xf-explorer__link { justify-self: start; align-self: end; }
}
@media (max-width: 700px) {
  .xf-explorer__inner { width: calc(100% - 32px); }
  .xf-explorer__heading { display: block; margin-bottom: 28px; }
  .xf-explorer__eyebrow { margin-bottom: 18px; font-size: 10px; }
  .xf-explorer__intro { max-width: 460px; margin: 22px 0 0; font-size: 13px; }
  .xf-explorer__machine figcaption { gap: 8px; font-size: 10px; }
  .xf-explorer__hint { gap: 6px; }
  .xf-explorer__machine figcaption strong { margin-right: 5px; }
  .xf-explorer__hotspot { width: 44px; height: 44px; font-size: 11px; }
  .xf-explorer__hotspot::after { inset: -4px; }
  .xf-explorer__tab { display: block; min-height: 78px; padding: 13px 10px; font-size: 11px; }
  .xf-explorer__tab-number { display: block; margin-bottom: 5px; }
  .xf-explorer__panel { display: flex; padding: 23px; }
  .xf-explorer__panel-heading { min-height: 0; margin-bottom: 20px; }
  .xf-explorer__panel h3 { font-size: 24px; }
  .xf-explorer__closeup { height: 300px; }
  .xf-explorer__description { margin-bottom: 24px; }
  .xf-explorer__link { align-self: flex-start; }
}