:root {
  --ink: #071d18;
  --ink-2: #0b2f27;
  --ink-3: #124638;
  --paper: #f3efe5;
  --paper-2: #fffdf8;
  --gold: #c3a15b;
  --gold-soft: #ead8aa;
  --muted: #718079;
  --line: rgba(195, 161, 91, .34);
  --shadow: 0 24px 80px rgba(0, 0, 0, .22);
  --nav-h: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
picture.platform-picture { display: block; width: 100%; height: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 9999; background: white; color: black; padding: 12px 18px; }
.skip-link:focus { top: 12px; }

.twin-nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  height: var(--nav-h);
  padding: 0 clamp(22px, 4vw, 72px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #f9f3df;
  background: rgba(7, 29, 24, .78);
  border-bottom: 1px solid rgba(234, 216, 170, .16);
  backdrop-filter: blur(18px);
  transition: background .25s ease, box-shadow .25s ease;
}
.twin-nav.is-scrolled { background: rgba(7, 29, 24, .96); box-shadow: 0 14px 40px rgba(0, 0, 0, .18); }
.twin-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.twin-brand__mark {
  width: 42px; height: 42px; display: grid; place-items: center;
  color: var(--ink); background: linear-gradient(135deg, #f5e4bc, var(--gold));
  border-radius: 13px 6px 13px 6px; font-size: 13px; font-weight: 900; letter-spacing: 1px;
}
.twin-brand__words { display: grid; gap: 1px; }
.twin-brand__words strong { font-size: 17px; letter-spacing: .12em; }
.twin-brand__words small { color: rgba(255,255,255,.58); font-size: 10px; letter-spacing: .12em; }
.twin-nav__links { display: flex; align-items: center; gap: clamp(18px, 2.7vw, 44px); }
.twin-nav__links a { color: rgba(255,255,255,.72); text-decoration: none; font-size: 14px; transition: color .2s ease; }
.twin-nav__links a:hover { color: var(--gold-soft); }
.twin-nav__toggle { display: none; width: 42px; height: 42px; background: transparent; border: 1px solid rgba(255,255,255,.2); border-radius: 12px; }
.twin-nav__toggle span { display: block; width: 20px; height: 1px; margin: 5px auto; background: white; }

.twin-kicker { margin: 0 0 14px; color: var(--gold); font-size: 12px; font-weight: 800; letter-spacing: .2em; text-transform: uppercase; }
.twin-btn { display: inline-flex; min-height: 48px; padding: 0 22px; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 4px; font-size: 14px; font-weight: 700; letter-spacing: .04em; text-decoration: none; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.twin-btn:hover { transform: translateY(-2px); }
.twin-btn--gold { color: var(--ink); background: var(--gold); box-shadow: 0 14px 34px rgba(195, 161, 91, .24); }
.twin-btn--gold:hover { background: #d1b477; }
.twin-btn--ghost { color: white; border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.04); }
.twin-btn--ghost:hover { border-color: var(--gold); }

.twin-hero {
  position: relative;
  min-height: 760px;
  padding: calc(var(--nav-h) + 80px) clamp(28px, 6vw, 100px) 84px;
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(520px, 1.08fr);
  gap: 60px;
  align-items: center;
  overflow: hidden;
  color: white;
  background:
    radial-gradient(circle at 78% 34%, rgba(65, 167, 133, .2), transparent 34%),
    radial-gradient(circle at 25% 100%, rgba(195, 161, 91, .13), transparent 28%),
    linear-gradient(135deg, #04140f, #0b2f27 58%, #071d18);
}
.twin-hero::after { content: ""; position: absolute; inset: auto -7vw -22vw auto; width: 55vw; height: 55vw; border: 1px solid rgba(195,161,91,.13); border-radius: 50%; }
.twin-hero__grain { position: absolute; inset: 0; opacity: .16; 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='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.12'/%3E%3C/svg%3E"); pointer-events: none; }
.twin-hero__copy { position: relative; z-index: 2; max-width: 690px; }
.twin-hero h1 { margin: 0; font-size: clamp(42px, 4.6vw, 72px); line-height: 1.12; letter-spacing: -.045em; font-weight: 680; }
.twin-hero h1 em { color: var(--gold-soft); font-style: normal; font-weight: 520; }
.twin-hero__lead { max-width: 640px; margin: 30px 0 0; color: rgba(255,255,255,.72); font-size: 17px; line-height: 1.95; }
.twin-hero__actions { display: flex; gap: 12px; margin-top: 36px; }
.twin-hero__visual { position: relative; z-index: 2; min-height: 520px; perspective: 1200px; }
.twin-stack { position: absolute; margin: 0; overflow: hidden; background: #071c1a; border: 1px solid rgba(255,255,255,.12); box-shadow: var(--shadow); }
.twin-stack img { width: 100%; height: 100%; object-fit: cover; }
.twin-stack--one { inset: 58px 3% 55px 10%; transform: rotateY(-7deg) rotateZ(-1.2deg); z-index: 3; }
.twin-stack--two { width: 55%; height: 44%; right: -2%; top: 4px; transform: rotate(2deg); z-index: 4; }
.twin-stack--three { width: 50%; height: 40%; left: 0; bottom: 0; transform: rotate(-3deg); z-index: 5; }
.twin-hero__status { position: absolute; right: 5%; bottom: 20px; z-index: 6; display: flex; align-items: center; gap: 9px; padding: 10px 14px; background: rgba(5,26,21,.88); border: 1px solid rgba(255,255,255,.14); color: rgba(255,255,255,.78); font-size: 12px; }
.twin-hero__status i { width: 7px; height: 7px; border-radius: 50%; background: #79e6a5; box-shadow: 0 0 0 5px rgba(121,230,165,.12); }
.twin-hero--catalog { grid-template-columns: .96fr 1.04fr; gap: 42px; }
.twin-hero--catalog h1 { font-size: clamp(42px, 4.1vw, 64px); }
.twin-hero__visual--catalog { min-height: 560px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-content: center; }
.twin-catalog-hero { position: relative; min-height: 390px; overflow: hidden; color: white; border: 1px solid rgba(255,255,255,.14); box-shadow: var(--shadow); text-decoration: none; }
.twin-catalog-hero--data { transform: translateY(-26px); }
.twin-catalog-hero--twin { transform: translateY(28px); }
.twin-catalog-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 38%, rgba(3,16,12,.92)); }
.twin-catalog-hero img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.twin-catalog-hero:hover img { transform: scale(1.035); }
.twin-catalog-hero span { position: absolute; z-index: 2; left: 22px; right: 22px; bottom: 20px; display: grid; grid-template-columns: auto 1fr; align-items: end; column-gap: 13px; }
.twin-catalog-hero b { grid-row: span 2; font-size: 66px; line-height: .9; font-weight: 250; color: var(--gold-soft); }
.twin-catalog-hero small { color: rgba(255,255,255,.68); font-size: 12px; letter-spacing: .08em; }
.twin-catalog-hero strong { font-size: 17px; }

.twin-proof { padding: 22px clamp(28px, 6vw, 100px); display: flex; align-items: center; gap: 28px; color: var(--paper); background: #102b24; border-top: 1px solid rgba(195,161,91,.35); }
.twin-proof > p { margin: 0; color: var(--gold-soft); font-size: 13px; white-space: nowrap; }
.twin-proof__rail { display: flex; flex: 1; align-items: center; justify-content: space-between; gap: 12px; color: rgba(255,255,255,.72); font-size: 13px; }
.twin-proof__rail i { height: 1px; flex: 1; min-width: 18px; background: linear-gradient(90deg, rgba(195,161,91,.2), var(--gold), rgba(195,161,91,.2)); }

.twin-section { padding: 112px clamp(28px, 6vw, 100px) 120px; }
.twin-section--catalog { padding-top: 94px; }
.twin-section--dark { color: white; background: #061712; }
.twin-section--dark .twin-section__head > p { color: rgba(255,255,255,.62); }
.twin-section--dark .twin-filter button { color: rgba(255,255,255,.62); border-color: rgba(255,255,255,.18); }
.twin-section--dark .twin-filter button.is-active { color: var(--ink); background: var(--gold-soft); border-color: var(--gold-soft); }
.twin-section__head { display: grid; grid-template-columns: 1.2fr .8fr; gap: 60px; align-items: end; margin-bottom: 42px; }
.twin-section__head h2, .twin-delivery h2, .twin-cta h2, .twin-detail-question h2, .twin-detail-grid h2, .twin-detail-cta h2, .twin-more h2 { margin: 0; font-size: clamp(32px, 3.2vw, 48px); line-height: 1.25; letter-spacing: -.035em; font-weight: 650; }
.twin-section__head > p { margin: 0; color: #52625b; font-size: 15px; line-height: 1.9; }
.twin-filter { display: flex; gap: 8px; margin-bottom: 24px; }
.twin-filter button { padding: 9px 15px; border: 1px solid rgba(7,29,24,.15); color: #52625b; background: transparent; border-radius: 999px; cursor: pointer; }
.twin-filter button.is-active { color: var(--paper); background: var(--ink); border-color: var(--ink); }
.twin-showcase-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 22px; }
.twin-showcase-grid--catalog { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.twin-card { grid-column: span 4; min-width: 0; background: rgba(255,255,255,.55); border: 1px solid rgba(7,29,24,.1); transition: transform .25s ease, box-shadow .25s ease; }
.twin-card--compact { grid-column: auto; background: rgba(255,255,255,.68); }
.twin-section--dark .twin-card--compact { background: #0c2720; border-color: rgba(255,255,255,.1); }
.twin-card:hover { transform: translateY(-5px); box-shadow: 0 22px 65px rgba(7,29,24,.12); }
.twin-card.is-hidden { display: none; }
.twin-card__visual { position: relative; display: block; aspect-ratio: 16/10; overflow: hidden; background: var(--ink); }
.twin-card__visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(4,18,14,.68)); }
.twin-card__visual img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.twin-card:hover .twin-card__visual img { transform: scale(1.035); }
.twin-card__code { position: absolute; left: 18px; bottom: 14px; z-index: 2; color: white; font-size: 42px; font-weight: 200; }
.twin-card__badge { position: absolute; right: 13px; top: 13px; z-index: 2; padding: 7px 9px; color: white; background: rgba(7,29,24,.78); border: 1px solid color-mix(in srgb, var(--card-accent) 65%, transparent); font-size: 10px; }
.twin-card__body { padding: 24px 22px 23px; }
.twin-card--compact .twin-card__body { padding: 18px 17px 17px; }
.twin-card--compact .twin-card__visual { aspect-ratio: 16/9; }
.twin-card--compact .twin-card__code { left: 13px; bottom: 9px; font-size: 29px; }
.twin-card--compact .twin-card__badge { right: 9px; top: 9px; padding: 5px 7px; font-size: 9px; }
.twin-card--compact h3 { min-height: 60px; font-size: 19px; }
.twin-card--compact .twin-card__body > p:not(.twin-card__eyebrow) { min-height: 96px; margin: 11px 0 15px; font-size: 12px; line-height: 1.72; }
.twin-card--compact .twin-card__links { padding-top: 12px; }
.twin-section--dark .twin-card--compact h3, .twin-section--dark .twin-card--compact .twin-card__links a { color: white; }
.twin-section--dark .twin-card--compact .twin-card__eyebrow, .twin-section--dark .twin-card--compact .twin-card__body > p:not(.twin-card__eyebrow) { color: rgba(255,255,255,.58); }
.twin-section--dark .twin-card--compact .twin-card__links { border-color: rgba(255,255,255,.12); }
.twin-section--dark .twin-card__play { color: var(--gold-soft) !important; }
.twin-card__eyebrow { margin: 0 0 8px; color: #6e7c76; font-size: 11px; letter-spacing: .08em; }
.twin-card h3 { margin: 0; font-size: 23px; line-height: 1.35; }
.twin-card__body > p:not(.twin-card__eyebrow) { min-height: 112px; margin: 15px 0 20px; color: #52625b; font-size: 14px; line-height: 1.86; }
.twin-card__links { display: flex; justify-content: space-between; align-items: center; gap: 12px; border-top: 1px solid rgba(7,29,24,.1); padding-top: 16px; }
.twin-card__links a { font-size: 12px; font-weight: 700; text-decoration: none; }
.twin-card__links > a:first-child { flex: 1; }
.twin-card__play { padding: 8px 11px; color: var(--ink); border: 1px solid var(--card-accent); border-radius: 2px; white-space: nowrap; }

.twin-delivery { padding: 110px clamp(28px, 6vw, 100px); display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; color: white; background: var(--ink); }
.twin-delivery__intro { align-self: start; position: sticky; top: calc(var(--nav-h) + 32px); }
.twin-delivery__intro > p:last-child { margin: 24px 0 0; color: rgba(255,255,255,.62); font-size: 15px; line-height: 1.95; }
.twin-delivery__steps { list-style: none; padding: 0; margin: 0; }
.twin-delivery__steps li { display: grid; grid-template-columns: 62px 1fr; gap: 22px; padding: 25px 0; border-top: 1px solid rgba(255,255,255,.12); }
.twin-delivery__steps li:last-child { border-bottom: 1px solid rgba(255,255,255,.12); }
.twin-delivery__steps b { color: var(--gold); font-size: 15px; font-weight: 500; }
.twin-delivery__steps strong { font-size: 20px; }
.twin-delivery__steps p { margin: 8px 0 0; color: rgba(255,255,255,.6); font-size: 14px; line-height: 1.75; }
.twin-cta { padding: 94px clamp(28px, 6vw, 100px); display: flex; align-items: center; justify-content: space-between; gap: 70px; background: #dfe5dc; }
.twin-cta > div { max-width: 840px; }
.twin-cta p:last-child { margin: 20px 0 0; color: #52625b; line-height: 1.85; }
.twin-cta .twin-btn { min-width: 210px; }

.twin-footer { padding: 45px clamp(28px, 6vw, 100px); display: grid; grid-template-columns: 1fr 1fr; gap: 60px; color: rgba(255,255,255,.72); background: #04140f; border-top: 1px solid rgba(195,161,91,.25); }
.twin-footer strong { color: white; font-size: 15px; }
.twin-footer p { margin: 8px 0 0; font-size: 12px; line-height: 1.7; }
.twin-footer__note { color: rgba(255,255,255,.46); }

.twin-detail-hero { min-height: 760px; padding: calc(var(--nav-h) + 70px) clamp(28px, 6vw, 100px) 72px; display: grid; grid-template-columns: .82fr 1.18fr; gap: 65px; align-items: center; color: white; background: linear-gradient(135deg, #061712, #0b2f27 68%, #09231d); }
.twin-back { display: inline-block; margin-bottom: 36px; color: rgba(255,255,255,.58); text-decoration: none; font-size: 13px; }
.twin-detail-hero h1 { margin: 0; font-size: clamp(45px, 5.2vw, 78px); line-height: 1.08; letter-spacing: -.05em; font-weight: 620; }
.twin-detail-hero__summary { margin: 27px 0 0; color: rgba(255,255,255,.72); font-size: 17px; line-height: 1.95; }
.twin-detail-hero__actions { display: flex; gap: 12px; margin-top: 32px; }
.twin-demo-note { margin: 32px 0 0; padding: 18px 18px 18px 22px; color: rgba(255,255,255,.56); border-left: 2px solid var(--detail-accent); background: rgba(255,255,255,.035); font-size: 12px; line-height: 1.8; }
.twin-demo-note span { display: block; margin-bottom: 4px; color: var(--detail-accent); font-weight: 800; letter-spacing: .12em; }
.twin-detail-hero__image { margin: 0; position: relative; box-shadow: 0 34px 100px rgba(0,0,0,.38); border: 1px solid rgba(255,255,255,.12); }
.twin-detail-hero__image::before { content: ""; position: absolute; inset: -12px 12px 12px -12px; border: 1px solid color-mix(in srgb, var(--detail-accent) 62%, transparent); pointer-events: none; }
.twin-detail-hero__image img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.twin-detail-hero__image figcaption { position: absolute; left: 14px; bottom: 12px; padding: 7px 9px; color: rgba(255,255,255,.78); background: rgba(4,20,15,.82); font-size: 10px; }
.twin-detail-question { padding: 74px clamp(28px, 9vw, 150px); display: grid; grid-template-columns: 190px 1fr; gap: 55px; align-items: start; background: #dfe5dc; }
.twin-detail-question > span { padding-top: 10px; color: #68756f; font-size: 12px; letter-spacing: .15em; }
.twin-detail-question h2 { max-width: 1050px; font-size: clamp(30px, 3.2vw, 47px); }

.twin-gallery { padding: 100px clamp(28px, 8vw, 130px); color: white; background: #061712; }
.twin-gallery__stage { position: relative; max-width: 1320px; margin: 0 auto; aspect-ratio: 16/9.7; overflow: hidden; border: 1px solid rgba(255,255,255,.13); box-shadow: 0 30px 90px rgba(0,0,0,.28); }
.twin-gallery__slide { position: absolute; inset: 0; margin: 0; opacity: 0; pointer-events: none; transition: opacity .35s ease; background: #081d18; }
.twin-gallery__slide.is-active { opacity: 1; pointer-events: auto; }
.twin-gallery__slide img { width: 100%; height: 100%; object-fit: contain; }
.twin-gallery__slide figcaption { position: absolute; left: 22px; bottom: 20px; padding: 10px 13px; color: white; background: rgba(4,20,15,.86); border-left: 2px solid var(--gold); font-size: 12px; }
.twin-gallery__arrow { position: absolute; top: 50%; z-index: 5; width: 48px; height: 48px; transform: translateY(-50%); color: white; background: rgba(4,20,15,.72); border: 1px solid rgba(255,255,255,.18); cursor: pointer; }
.twin-gallery__arrow--prev { left: 14px; }
.twin-gallery__arrow--next { right: 14px; }
.twin-gallery__thumbs { max-width: 1320px; margin: 18px auto 0; display: flex; gap: 11px; overflow-x: auto; }
.twin-gallery__thumbs button { position: relative; flex: 0 0 180px; padding: 0; aspect-ratio: 16/9; overflow: hidden; opacity: .48; border: 1px solid transparent; background: #071d18; cursor: pointer; transition: opacity .2s ease, border-color .2s ease; }
.twin-gallery__thumbs button.is-active { opacity: 1; border-color: var(--gold); }
.twin-gallery__thumbs img { width: 100%; height: 100%; object-fit: cover; }
.twin-gallery__thumbs span { position: absolute; right: 7px; bottom: 5px; color: white; font-size: 10px; text-shadow: 0 1px 4px black; }

.twin-detail-grid { padding: 112px clamp(28px, 6vw, 100px); display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: rgba(7,29,24,.12); }
.twin-detail-grid article { min-height: 390px; padding: clamp(30px, 4.5vw, 70px); background: var(--paper-2); }
.twin-detail-grid article:nth-child(2), .twin-detail-grid article:nth-child(3) { background: #e6e8df; }
.twin-detail-grid h2 { font-size: 34px; }
.twin-detail-grid ul { list-style: none; margin: 32px 0 0; padding: 0; }
.twin-detail-grid li { position: relative; padding: 13px 0 13px 28px; border-top: 1px solid rgba(7,29,24,.12); color: #4f5f58; font-size: 14px; line-height: 1.7; }
.twin-detail-grid li:last-child { border-bottom: 1px solid rgba(7,29,24,.12); }
.twin-detail-grid li::before { content: ""; position: absolute; left: 2px; top: 23px; width: 7px; height: 7px; border: 1px solid var(--gold); transform: rotate(45deg); }
.twin-detail-cta { padding: 100px clamp(28px, 7vw, 115px); display: flex; align-items: center; justify-content: space-between; gap: 80px; color: white; background: var(--ink); }
.twin-detail-cta > div { max-width: 850px; }
.twin-detail-cta p:last-child { color: rgba(255,255,255,.6); line-height: 1.8; }
.twin-detail-cta .twin-btn { min-width: 260px; }
.twin-more { padding: 95px clamp(28px, 6vw, 100px) 120px; }
.twin-more h2 { font-size: 38px; }
.twin-more__grid { margin-top: 30px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.twin-more__grid a { position: relative; display: block; aspect-ratio: 16/7; overflow: hidden; color: white; text-decoration: none; background: var(--ink); }
.twin-more__grid a::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 25%, rgba(4,20,15,.9)); }
.twin-more__grid img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.twin-more__grid a:hover img { transform: scale(1.04); }
.twin-more__grid span { position: absolute; z-index: 2; left: 24px; bottom: 22px; display: grid; gap: 4px; }
.twin-more__grid small { color: var(--gold-soft); }
.twin-more__grid strong { font-size: 23px; }

.twin-experience-page { height: 100vh; overflow: hidden; color: white; background: #020806; }
.twin-experience-bar { height: 58px; padding: 0 18px; display: flex; align-items: center; justify-content: space-between; gap: 20px; background: #071d18; border-bottom: 1px solid rgba(195,161,91,.25); }
.twin-experience-bar > div { display: flex; align-items: center; gap: 13px; min-width: 0; }
.twin-experience-bar a { color: rgba(255,255,255,.65); text-decoration: none; font-size: 12px; }
.twin-experience-bar span { width: 1px; height: 20px; background: rgba(255,255,255,.18); }
.twin-experience-bar strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; }
.twin-experience-bar small { color: var(--gold); font-size: 10px; white-space: nowrap; }
.twin-experience-bar button { padding: 7px 12px; color: rgba(255,255,255,.75); border: 1px solid rgba(255,255,255,.2); background: transparent; cursor: pointer; }
.twin-experience-stage { position: relative; height: calc(100vh - 86px); }
.twin-experience-stage iframe { width: 100%; height: 100%; border: 0; background: #020806; }
.twin-experience-loader { position: absolute; inset: 0; z-index: 4; display: flex; align-items: center; justify-content: center; gap: 7px; color: rgba(255,255,255,.62); background: #020806; transition: opacity .35s ease, visibility .35s ease; }
.twin-experience-loader.is-hidden { opacity: 0; visibility: hidden; }
.twin-experience-loader span { width: 8px; height: 8px; border-radius: 50%; background: var(--gold); animation: twinPulse 1.2s ease-in-out infinite; }
.twin-experience-loader span:nth-child(2) { animation-delay: .13s; }
.twin-experience-loader span:nth-child(3) { animation-delay: .26s; }
.twin-experience-loader p { margin-left: 9px; font-size: 12px; }
@keyframes twinPulse { 0%,100% { opacity: .25; transform: translateY(0); } 50% { opacity: 1; transform: translateY(-5px); } }
.twin-experience-disclaimer { height: 28px; padding: 6px 16px; overflow: hidden; color: rgba(255,255,255,.45); background: #071d18; text-align: center; font-size: 10px; white-space: nowrap; }

@media (max-width: 1050px) {
  .twin-hero { grid-template-columns: 1fr; padding-top: calc(var(--nav-h) + 66px); }
  .twin-hero__visual { min-height: 480px; }
  .twin-card { grid-column: span 6; }
  .twin-showcase-grid--catalog { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .twin-card--compact { grid-column: auto; }
  .twin-delivery { grid-template-columns: 1fr; }
  .twin-delivery__intro { position: static; }
  .twin-detail-hero { grid-template-columns: 1fr; }
}

@media (max-width: 740px) {
  :root { --nav-h: 64px; }
  .twin-nav { padding: 0 18px; }
  .twin-brand__words small { display: none; }
  .twin-nav__toggle { display: block; }
  .twin-nav__links { position: absolute; inset: var(--nav-h) 0 auto; display: none; padding: 16px 22px 24px; flex-direction: column; align-items: flex-start; gap: 16px; background: rgba(7,29,24,.98); }
  .twin-nav__links.is-open { display: flex; }
  .twin-hero { min-height: auto; padding: calc(var(--nav-h) + 46px) 22px 58px; gap: 34px; }
  .twin-hero h1 { font-size: 39px; }
  .twin-hero__lead { font-size: 15px; }
  .twin-hero__actions { flex-direction: column; align-items: stretch; }
  .twin-hero__visual { min-height: 320px; }
  .twin-hero__visual--catalog { min-height: 620px; grid-template-columns: 1fr; }
  .twin-catalog-hero { min-height: 290px; transform: none; }
  .twin-stack--one { inset: 35px 2% 28px 6%; }
  .twin-stack--two { width: 54%; height: 42%; }
  .twin-stack--three { width: 52%; height: 40%; }
  .twin-proof { align-items: flex-start; flex-direction: column; gap: 14px; overflow-x: auto; }
  .twin-proof__rail { min-width: 760px; }
  .twin-section { padding: 75px 20px 80px; }
  .twin-section__head { grid-template-columns: 1fr; gap: 22px; }
  .twin-filter { overflow-x: auto; padding-bottom: 5px; }
  .twin-filter button { flex: 0 0 auto; }
  .twin-card { grid-column: span 12; }
  .twin-showcase-grid--catalog { grid-template-columns: 1fr; }
  .twin-card--compact { grid-column: auto; }
  .twin-card__body > p:not(.twin-card__eyebrow) { min-height: 0; }
  .twin-delivery, .twin-cta, .twin-detail-cta { padding: 75px 22px; }
  .twin-cta, .twin-detail-cta { align-items: stretch; flex-direction: column; gap: 30px; }
  .twin-footer { grid-template-columns: 1fr; gap: 24px; }
  .twin-detail-hero { min-height: auto; padding: calc(var(--nav-h) + 42px) 20px 55px; gap: 40px; }
  .twin-detail-hero h1 { font-size: 42px; }
  .twin-detail-hero__actions { flex-direction: column; }
  .twin-detail-question { padding: 55px 22px; grid-template-columns: 1fr; gap: 10px; }
  .twin-gallery { padding: 55px 10px; }
  .twin-gallery__thumbs button { flex-basis: 110px; }
  .twin-detail-grid { padding: 0; grid-template-columns: 1fr; }
  .twin-detail-grid article { min-height: 0; }
  .twin-more { padding: 65px 20px 80px; }
  .twin-more__grid { grid-template-columns: 1fr; }
  .twin-experience-bar { height: 54px; }
  .twin-experience-bar small, .twin-experience-bar button:first-child, .twin-experience-bar span { display: none; }
  .twin-experience-stage { height: calc(100vh - 80px); }
  .twin-experience-disclaimer { height: 26px; text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}