.origin-home .header { position: absolute; inset: 0 0 auto; z-index: 5; background: transparent; border: 0; max-width: none; padding: 24px 36px; }
.origin-home .desktop-nav, .origin-home .edition, .origin-home .mobile-nav { display: none; }
.origin-home { padding-bottom: 0; }
.brand .brand-logo-full { display: block; width: 210px; height: auto; object-fit: contain; }
footer .brand .brand-logo-full { width: 210px; }
.origin-home .header .brand:has(.brand-logo-full) { background: transparent; padding: 0; border-radius: 0; backdrop-filter: none; -webkit-backdrop-filter: none; }
.origin-home .header .brand-logo-full { width: 300px; }
@media (max-width: 600px) { .brand .brand-logo-full, .origin-home .header .brand-logo-full { width: 210px; } }
.brand .brand-icon { width: 60px; height: 60px; object-fit: contain; flex-shrink: 0; filter: drop-shadow(0 2px 3px #051e1926); }
.brand .brand-lockup { display: flex; flex-direction: column; align-items: center; gap: 5px; opacity: 1; margin: 0; letter-spacing: 0; }
.brand .brand-name { font-family: "Arial Rounded MT Bold", "Trebuchet MS", "Microsoft YaHei", sans-serif; font-size: 29px; font-weight: 900; line-height: 1; letter-spacing: -1.2px; }
.brand .brand-cn { display: flex; align-items: center; gap: 9px; margin: 0; opacity: 1; font-size: 14px; font-weight: 800; line-height: 1.1; letter-spacing: 3px; }
.brand .brand-cn::before, .brand .brand-cn::after { content: ""; width: 25px; height: 1px; background: currentColor; opacity: .7; }
.origin-home .header .brand { background: #0f3d2273; padding: 7px 17px 7px 10px; border-radius: 22px; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.origin-home .header { height: auto; }
footer .brand .brand-icon { width: 46px; height: 46px; }
footer .brand .brand-name { font-size: 23px; }
@media (max-width: 600px) { .brand .brand-icon { width: 46px; height: 46px; } .brand .brand-name { font-size: 24px; } .brand .brand-cn { font-size: 12px; gap: 7px; } .brand .brand-cn::before, .brand .brand-cn::after { width: 18px; } }
.origin-hero { position: relative; width: 100%; height: 100vh; height: 100svh; overflow: hidden; background: #051e19; color: #fff9ea; isolation: isolate; }
.origin-hero video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.origin-hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(rgba(5,30,25,.15), transparent 40%, rgba(5,30,25,.35)); pointer-events: none; }
.origin-copy { position: absolute; z-index: 1; bottom: max(100px, 13%); left: 24px; right: 24px; text-align: center; text-shadow: 0 2px 16px #051e1966; }
.origin-copy h1.sr-only { margin: 0; }
.origin-end-brand { margin: 0 0 14px; font-size: clamp(20px, 2.3vw, 32px); font-weight: 700; opacity: 0; transform: translateY(8px); transition: opacity 800ms, transform 800ms; }
.is-ended .origin-end-brand { opacity: 1; transform: none; }
.is-ended .origin-copy { animation: story-reveal 800ms ease both; }
.origin-explore { display: inline-flex; align-items: center; gap: 28px; padding: 13px 26px; border-radius: 99px; background: #f2d99be8; color: #173f35; text-shadow: none; font-weight: 650; box-shadow: inset 0 1px 0 #fff9eaaa, 0 6px 28px #051e1933; }
.origin-sound, .origin-play { border: 1px solid #fff9ea33; border-radius: 99px; color: #fff9ea; background: #173f3599; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 6px 24px #051e1933, inset 0 1px 0 #fff9ea15; padding: 13px 22px; min-height: 48px; cursor: pointer; font: inherit; transition: transform 180ms, background 180ms; }
.origin-sound { position: fixed; z-index: 20; right: max(28px, env(safe-area-inset-right)); bottom: calc(28px + env(safe-area-inset-bottom)); }
.origin-play { position: absolute; z-index: 2; top: 45%; left: 50%; translate: -50% -50%; }
.origin-error { position: absolute; z-index: 2; top: 35%; left: 24px; right: 24px; text-align: center; }
.origin-scroll { position: absolute; z-index: 1; bottom: 30px; left: 36px; font-size: 13px; color: #fff9ea; }
.origin-hero [hidden] { display: none; }
.origin-end-brand, .origin-error { color: #fff9ea; }
.origin-explore:focus-visible, .origin-sound:focus-visible, .origin-play:focus-visible { outline: 3px solid #f2d99b; outline-offset: 5px; }
@media (hover: hover) { .origin-sound:hover, .origin-play:hover { transform: scale(1.035); background: #173f35bb; } }
@media (max-width: 600px) { .origin-home .header { padding: calc(18px + env(safe-area-inset-top)) 20px 18px; } .origin-sound { right: 18px; bottom: calc(18px + env(safe-area-inset-bottom)); padding: 10px 16px; font-size: 14px; } .origin-copy { bottom: 118px; left: 16px; right: 16px; } .origin-scroll { left: 20px; bottom: calc(32px + env(safe-area-inset-bottom)); } }
@media (max-height: 500px) and (orientation: landscape) { .origin-copy { bottom: 70px; } .origin-copy h1 { font-size: 22px; margin-bottom: 12px; } .origin-end-brand { margin-bottom: 4px; } }
@keyframes story-reveal { from { opacity: .25; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .origin-hero *, .origin-sound { animation: none; transition: none; } }

/* Phase 2H.0 H0.2 — intro state machine and crossfade. */
.home-experience {
  position: relative;
  min-height: 100dvh;
  overflow: hidden;
  background: #051e19;
}

.intro-active { overflow: hidden; background: #051e19; }

.home-experience .forest-hub {
  position: relative;
  z-index: 10;
  min-height: 100dvh;
  opacity: 0;
  visibility: hidden;
  transform: scale(1.015);
  transform-origin: center;
  transition: opacity 1100ms ease, transform 1100ms ease;
}

.home-experience.is-forest-ready[data-intro-state='transitioning'] .forest-hub,
.home-experience.is-forest-ready[data-intro-state='complete'] .forest-hub {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.origin-hero {
  position: fixed;
  inset: 0;
  z-index: 20;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  opacity: 1;
  visibility: visible;
  transition: opacity 1100ms ease, visibility 0s linear 1100ms;
  background: #051e19 url('/assets/forest-brand-story-20260926-v2/forest-hero-v2.webp') center / cover no-repeat;
}

[data-intro-state='transitioning'] .origin-hero,
[data-intro-state='complete'] .origin-hero {
  opacity: 0;
  pointer-events: none;
}

[data-intro-state='complete'] .origin-hero { visibility: hidden; }
[data-intro-state='replay'] .origin-hero { opacity: 1; visibility: visible; pointer-events: auto; }

.origin-shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(3, 20, 17, .18), transparent 36%, rgba(3, 20, 17, .26));
}

.origin-skip,
.origin-sound,
.origin-play {
  border: 1px solid #fff9ea40;
  border-radius: 999px;
  color: #fff9ea;
  background: #102f2bb5;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 28px #03130f55, inset 0 1px 0 #fff9ea18;
  cursor: pointer;
  font: inherit;
}

.origin-skip {
  position: absolute;
  z-index: 3;
  top: calc(24px + env(safe-area-inset-top));
  right: max(28px, env(safe-area-inset-right));
  min-width: 76px;
  min-height: 44px;
  padding: 10px 20px;
}

.origin-sound {
  z-index: 23;
  right: max(28px, env(safe-area-inset-right));
  bottom: calc(28px + env(safe-area-inset-bottom));
}

.origin-fallback {
  position: absolute;
  z-index: 3;
  left: 50%;
  top: 50%;
  translate: -50% -50%;
  text-align: center;
}

.origin-fallback p { margin-bottom: 14px; color: #fff9ea; }
.origin-fallback .origin-play { position: static; translate: none; min-width: 190px; }
.origin-error { z-index: 3; }

@media (max-width: 600px) {
  .origin-hero video { object-position: 52% center; }
  .origin-skip { top: calc(16px + env(safe-area-inset-top)); right: max(16px, env(safe-area-inset-right)); min-width: 68px; padding: 9px 16px; }
  .origin-sound { right: max(16px, env(safe-area-inset-right)); bottom: calc(16px + env(safe-area-inset-bottom)); }
}

@media (prefers-reduced-motion: reduce) {
  .home-experience .forest-hub { transform: none; transition: opacity 180ms linear; }
  .origin-hero { transition: opacity 180ms linear, visibility 0s linear 180ms; }
}