:root { color-scheme: dark; font-family: "PingFang SC", "Microsoft YaHei", sans-serif; color: #f5faf7; background: #101c19; }
* { box-sizing: border-box; }
html, body { margin: 0; width: 100%; height: 100%; overflow: hidden; overscroll-behavior: none; }
button { font: inherit; color: inherit; cursor: pointer; -webkit-tap-highlight-color: transparent; }
button:focus-visible { outline: 2px solid #f0d77c; outline-offset: 4px; }
[hidden] { display: none !important; }
#ExperienceFrame { position: fixed; inset: 0 auto auto 0; width: 100vw; height: 100dvh; overflow: hidden; isolation: isolate; transform-origin: top left; --margin: 5.5%; container-type: size; }
.backdrops, .backdrops img, .shade, #home, #overview { position: absolute; inset: 0; width: 100%; height: 100%; }
.backdrops { z-index: -1; overflow: hidden; background: #101c19; }
.backdrops img { object-fit: cover; }
#backdrop { animation: photograph-drift 12s ease-out both; }
#previous-backdrop { opacity: 0; transition: opacity .35s ease; }
.shade { background: linear-gradient(90deg, #0a1719b8 0%, #0e191a7a 52%, #0e16194d 100%), linear-gradient(0deg, #0b1417ee 0%, #0d17174d 42%, #0d171744 100%); }
.brand { position: absolute; top: 6.3%; left: var(--margin); display: flex; align-items: center; gap: 14px; }
.brand strong { font-size: clamp(18px, 2.35cqw, 28px); letter-spacing: .03em; }
.brand-mark { width: 10px; height: 10px; transform: rotate(45deg); background: #f0d77c; }
.brand-tagline { color: #d6dfdb; font-size: clamp(10px, 1.3cqw, 14px); margin-left: 9px; }
.company-trigger { position: absolute; z-index: 2; top: 5%; right: var(--margin); min-height: 44px; padding: 9px 16px; border: 1px solid #d4e0d44d; border-radius: 24px; background: #12221bd9; font-size: clamp(11px, 1.2cqw, 14px); }
.company-trigger span { margin-left: 12px; color: #f0d77c; }
.company-trigger:hover { border-color: #f0d77c; }
.company-overlay { position: absolute; inset: 0; z-index: 30; display: grid; place-items: center; padding: 4cqh 5.5cqw; background: #07110bd9; backdrop-filter: blur(12px); }
.company-panel { display: flex; flex-direction: column; width: min(100%, 1060px); max-height: 100%; min-height: 0; background: #15251d; border: 1px solid #6f8c6e66; border-radius: 16px; box-shadow: 0 24px 90px #0007; }
.company-bar { display: flex; align-items: center; justify-content: space-between; flex-shrink: 0; padding: 10px 24px; border-bottom: 1px solid #c4d8cf30; font-size: 11px; letter-spacing: .08em; color: #c3cfbf; }
.company-close { min-height: 44px; padding: 8px 14px; border: 0; background: transparent; border-radius: 22px; }
.company-close:hover { background: #ffffff12; }
.company-body { overflow-y: auto; overscroll-behavior: contain; padding: 28px 36px 36px; font-size: 14px; line-height: 1.85; scrollbar-color: #617957 #15251d; }
.company-body p { margin: 10px 0; }
.company-kicker, .company-number { color: #f0d77c; }
.company-kicker { font-size: 12px; letter-spacing: .08em; }
.company-body h2 { margin: 8px 0; font-size: clamp(22px, 2.7cqw, 34px); font-weight: 600; line-height: 1.5; }
.company-body .company-tagline { font-size: clamp(16px, 1.9cqw, 22px); color: #e6d89e; }
.company-lead { color: #c9d6c8; max-width: 780px; }
.company-body h3 { margin: 0; font-size: 18px; font-weight: 500; }
.company-scope, .company-capabilities, .company-cooperation { margin-top: 28px; }
.company-body .company-hint { font-size: 12px; color: #abbfa7; margin: 3px 0 12px; }
.company-businesses { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; align-items: start; }
.company-business { border-top: 1px solid #c4d8cf30; }
.company-business summary { display: flex; gap: 12px; align-items: baseline; list-style: none; min-height: 52px; padding: 13px 2px; cursor: pointer; line-height: 1.7; }
.company-business summary::-webkit-details-marker { display: none; }
.company-business summary::after { content: '+'; margin-left: auto; color: #c6d5be; }
.company-business[open] summary::after { content: '−'; }
.company-business summary:focus-visible { outline: 2px solid #f0d77c; outline-offset: -2px; }
.company-number { font-size: 11px; flex: 0 0 18px; }
.company-business ul { padding: 0 20px 8px 44px; margin: 0; font-size: 13px; color: #c6d5be; }
.company-capabilities { padding: 22px 24px; border-left: 2px solid #d7ca8d; background: #203326; }
.company-body .company-construction { font-size: 12px; color: #e5dba9; }
.company-philosophy { color: #e5dba9; }
.company-location { color: #afc4aa; font-size: 12px; }
@container (max-height: 450px) {
  .company-overlay { padding: 12px 4cqw; }
  .company-bar { padding: 2px 18px; }
  .company-body { padding: 16px 24px 24px; font-size: 12px; }
  .company-body h3 { font-size: 16px; }
  .company-scope, .company-capabilities, .company-cooperation { margin-top: 20px; }
}
@container (max-width: 680px) {
  .company-trigger { right: 4%; top: 3%; padding: 8px 12px; }
  .company-businesses { grid-template-columns: 1fr; }
  .company-body h2 { font-size: 21px; }
}
.business-copy { position: absolute; top: 19.5%; left: var(--margin); width: 38%; text-shadow: 0 1px 3px #0006; }
.eyebrow { margin: 0 0 10px; font-size: clamp(10px, 1.3cqw, 15px); color: #f0d77c; }
h1 { margin: 0; font-size: clamp(24px, 3.55cqw, 44px); line-height: 1.4; font-weight: 600; }
.subtitle { margin: 9px 0 12px; font-size: clamp(12px, 1.65cqw, 19px); color: #e9efeB; line-height: 1.6; }
#highlights { list-style: none; margin: 0; padding: 0; color: #dee7e1; font-size: clamp(11px, 1.5cqw, 17px); line-height: 1.8; }
#highlights li::before { content: "·"; padding-right: 9px; color: #bfd1c4; }
.play-film { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: flex; flex-direction: column; align-items: center; gap: 10px; min-width: 88px; min-height: 88px; border: 0; padding: 0; background: transparent; font-size: 12px; }
.play-disc { width: 68px; height: 68px; border-radius: 50%; border: 1px solid #ffffff52; background: #1019178c; display: grid; place-items: center; transition: background .18s, border-color .18s, transform .18s; }
.play-disc img { width: 30px; height: 30px; margin-left: 3px; }
.play-film:hover .play-disc { background: #263a30c9; border-color: #f0d77c; }
.play-film:active .play-disc { transform: scale(.95); }
.business-navigation { position: absolute; bottom: 7.8%; left: var(--margin); right: var(--margin); }
.counter { margin: 0 0 12px; color: #bfcdc5; font-size: 11px; }
nav { display: flex; align-items: center; border-top: 1px solid #c4d8cf30; padding-top: 8px; gap: 7px; }
.arrow { width: 36px; height: 48px; flex: 0 0 36px; border: 0; background: transparent; font-size: 28px; line-height: 1; }
.arrow:hover { color: #f0d77c; }
.business-tabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); flex: 1; }
.business-tab { position: relative; display: grid; grid-template-columns: 20px 1fr; gap: 4px; padding: 10px 7px 14px; border: 0; background: transparent; text-align: left; min-width: 0; min-height: 54px; }
.business-tab .number { color: #b5c6bc; font-size: 11px; line-height: 20px; }
.business-tab strong { font-size: clamp(11px, 1.5cqw, 18px); line-height: 20px; font-weight: 500; white-space: nowrap; }
.business-tab small { grid-column: 2; color: #bfcdc5; font-size: clamp(9px, 1.1cqw, 13px); white-space: nowrap; }
.business-tab[aria-current="true"] strong, .business-tab[aria-current="true"] .number { color: #f0d77c; }
.business-tab[aria-current="true"]::after { content: ""; position: absolute; bottom: 3px; left: 31px; width: 28px; height: 2px; background: #f0d77c; }
footer { position: absolute; bottom: 3%; left: var(--margin); right: var(--margin); display: flex; justify-content: space-between; font-size: clamp(9px, 1.1cqw, 12px); color: #b7c6bd; }
.film-player { position: absolute; inset: 0; background: #080b0a; z-index: 10; }
.film-player video { display: block; width: 100%; height: 100%; object-fit: cover; background: #080b0a; }
.film-topbar { position: absolute; inset: 0 0 auto; display: flex; align-items: center; gap: 12px; padding: 12px 18px; background: linear-gradient(#000b, transparent); pointer-events: none; }
.film-topbar button { pointer-events: auto; border: 1px solid #ffffff40; background: #121a18b3; border-radius: 24px; min-height: 44px; }
.film-close { width: 44px; display: grid; place-items: center; }
.film-close img { width: 20px; height: 20px; }
#film-title { font-size: 13px; text-shadow: 0 1px 3px #000; }
#enable-sound { margin-left: auto; display: flex; align-items: center; gap: 8px; padding: 8px 14px; font-size: 12px; }
#enable-sound img { width: 18px; height: 18px; }
.film-status { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); padding: 14px 24px; min-height: 48px; max-width: 85%; border: 1px solid #ffffff45; border-radius: 28px; background: #0b1714d9; font-size: 14px; white-space: nowrap; }
.film-status:disabled { cursor: wait; }
#startup-error, .noscript { position: absolute; left: 5.5%; bottom: 3%; background: #101c19; padding: 12px; z-index: 100; }
@keyframes photograph-drift { from { transform: scale(1); } to { transform: scale(1.025); } }
@container (max-height: 350px) {
  .brand { top: 5%; }
  .business-copy { top: 19%; }
  .eyebrow { margin-bottom: 5px; }
  h1 { font-size: 25px; }
  .subtitle { margin: 4px 0 10px; font-size: 12px; }
  #highlights { font-size: 11px; line-height: 1.85; }
  .business-navigation { bottom: 7%; }
  .counter { margin-bottom: 4px; font-size: 10px; }
  nav { padding-top: 2px; }
  .play-disc { width: 58px; height: 58px; }
}
@container (max-width: 680px) {
  .brand { gap: 10px; }
  .brand-tagline { margin-left: 0; }
  .business-copy { width: 39%; }
  .subtitle { font-size: 12px; }
  #highlights { font-size: 10px; }
  .business-tab { grid-template-columns: 15px 1fr; padding-left: 2px; padding-right: 2px; gap: 2px; }
  .business-tab .number { font-size: 10px; }
  .business-tab strong { font-size: 11px; }
  .business-tab small { font-size: 9px; }
  .business-tab[aria-current="true"]::after { left: 19px; }
  .arrow { flex-basis: 28px; width: 28px; }
}
@container (min-height: 500px) {
  .business-copy { top: 24%; }
  .brand { top: 7%; }
  .play-disc { width: 88px; height: 88px; }
  .play-disc img { width: 35px; height: 35px; }
  .play-film { font-size: 14px; }
  .business-navigation { bottom: 10%; }
  .business-tab { padding-top: 18px; padding-bottom: 22px; }
  footer { bottom: 5%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}