:root {
  --bg: #08080d;
  --surface: rgba(18, 18, 29, 0.76);
  --text: #f7f4ee;
  --muted: #aaa6b4;
  --gold: #f4c874;
  --violet: #9b78ff;
  --ice: #6ee7ff;
  --accent: var(--gold);
  --accent-soft: rgba(244, 200, 116, 0.18);
  --ease-out: cubic-bezier(.2, .8, .2, 1);
  --pointer-x: 0deg;
  --pointer-y: 0deg;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; overflow-x: clip; }
body { margin: 0; min-width: 320px; overflow-x: hidden; overflow-x: clip; background: var(--bg); color: var(--text); }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }

html {
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  scrollbar-color: rgba(244, 200, 116, .48) #0d0d14;
}

body {
  position: relative;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background:
    radial-gradient(circle at 78% 4%, rgba(155, 120, 255, .14), transparent 27rem),
    radial-gradient(circle at 8% 35%, rgba(110, 231, 255, .06), transparent 30rem),
    var(--bg);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  pointer-events: none;
  opacity: .22;
  background-image:
    linear-gradient(rgba(255, 255, 255, .022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .022) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}

a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--ice); outline-offset: 4px; }
::selection { color: #08080d; background: var(--gold); }
.skip-link { position: fixed; top: 10px; left: 10px; z-index: 100; padding: 10px 14px; color: #08080d; background: var(--ice); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
[id] { scroll-margin-top: 104px; }

.neural-field {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: .7;
}

.site-header {
  position: fixed;
  inset: 18px max(20px, calc((100vw - 1440px) / 2)) auto;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 62px;
  padding: 10px 12px 10px 18px;
  border: 1px solid rgba(255, 255, 255, .11);
  border-radius: 999px;
  background: rgba(9, 9, 15, .72);
  box-shadow: 0 18px 70px rgba(0, 0, 0, .28);
  backdrop-filter: blur(22px) saturate(130%);
}

.brand { display: inline-flex; align-items: center; gap: 11px; font-size: .84rem; font-weight: 800; letter-spacing: .12em; white-space: nowrap; }
.brand-mark { display: grid; width: 38px; aspect-ratio: 1; place-items: center; border: 1px solid rgba(244, 200, 116, .54); border-radius: 50%; color: var(--gold); font-family: Georgia, serif; font-size: .72rem; letter-spacing: .04em; box-shadow: inset 0 0 18px rgba(244, 200, 116, .1); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { padding: 10px 14px; border-radius: 999px; color: var(--muted); font-size: .78rem; letter-spacing: .06em; white-space: nowrap; transition: color .35s var(--ease-out), background .35s var(--ease-out); }
.nav-links a:hover { color: var(--text); background: rgba(255, 255, 255, .07); }

main { position: relative; }
.section { width: min(100% - 64px, 1380px); margin-inline: auto; padding-block: clamp(104px, 11vw, 176px); }
.eyebrow { margin: 0 0 22px; color: var(--accent); font-family: Georgia, "Times New Roman", serif; font-size: .7rem; font-weight: 700; letter-spacing: .24em; text-transform: uppercase; }
.eyebrow::before { display: inline-block; width: 30px; height: 1px; margin-right: 12px; background: currentColor; content: ""; vertical-align: middle; }
.section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(250px, 420px); align-items: end; gap: 28px; margin-bottom: 68px; }
.section-heading .eyebrow { grid-column: 1 / -1; margin-bottom: -4px; }
.section-heading h2 { max-width: 950px; margin: 0; font-size: clamp(2.9rem, 6.4vw, 6.8rem); font-weight: 900; line-height: .94; letter-spacing: -.075em; }
.section-heading h2 span { color: transparent; -webkit-text-stroke: 1px rgba(247, 244, 238, .42); }
.section-heading > p:last-child { margin: 0 0 8px; color: var(--muted); font-size: .95rem; }

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, .93fr) minmax(370px, .72fr);
  align-items: center;
  gap: clamp(40px, 7vw, 120px);
  width: min(100% - 64px, 1380px);
  min-height: 100svh;
  margin-inline: auto;
  padding: 130px 20px 80px;
}

.hero::before { position: absolute; top: 13%; right: -9%; z-index: -1; width: 58%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(155, 120, 255, .2), rgba(110, 231, 255, .04) 42%, transparent 68%); filter: blur(8px); content: ""; }
.hero-copy { position: relative; z-index: 2; }
.hero-title { max-width: 850px; margin: 0; font-size: clamp(4.8rem, 9.2vw, 9.7rem); font-weight: 900; line-height: .82; letter-spacing: -.095em; }
.hero-title span { display: block; margin-left: clamp(20px, 5vw, 78px); color: transparent; background: linear-gradient(100deg, var(--gold) 10%, #ffe4ad 35%, var(--violet) 72%, var(--ice)); -webkit-background-clip: text; background-clip: text; }
.hero-intro { max-width: 580px; margin: 38px 0 0; color: #c9c5cf; font-size: clamp(.96rem, 1.4vw, 1.14rem); letter-spacing: .025em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; min-height: 51px; align-items: center; justify-content: center; gap: 18px; padding: 0 24px; border: 1px solid rgba(255, 255, 255, .16); border-radius: 999px; background: rgba(255, 255, 255, .045); cursor: pointer; font-size: .82rem; font-weight: 700; letter-spacing: .08em; transition: transform .35s var(--ease-out), border-color .35s var(--ease-out), background .35s var(--ease-out), box-shadow .35s var(--ease-out); }
.button:hover { transform: translateY(-3px); border-color: rgba(255, 255, 255, .34); }
.button-primary { border-color: var(--gold); color: #121017; background: var(--gold); box-shadow: 0 12px 36px rgba(244, 200, 116, .16); }
.button-primary:hover { border-color: #ffe3aa; background: #ffe3aa; box-shadow: 0 16px 48px rgba(244, 200, 116, .25); }
.button-quiet { color: var(--text); }
.hero-price { display: flex; align-items: baseline; gap: 16px; margin: 30px 0 0; color: var(--muted); }
.hero-price .price-label { align-self: center; padding: 4px 8px; border: 1px solid rgba(244, 200, 116, .38); border-radius: 2px; color: var(--gold); font-size: .62rem; font-weight: 700; letter-spacing: .18em; }
.hero-price strong { color: var(--text); font-family: Georgia, serif; font-size: 2.3rem; line-height: 1; }
.hero-price del { opacity: .5; }
.hero-price > span:last-child { padding-left: 16px; border-left: 1px solid rgba(255, 255, 255, .15); color: var(--gold); font-size: .76rem; }

.hero-visual { position: relative; width: min(100%, 500px); margin: 0 auto; transform: perspective(1000px) rotateX(var(--pointer-y)) rotateY(var(--pointer-x)); transform-style: preserve-3d; transition: transform .18s linear; }
.hero-image-frame { position: relative; overflow: hidden; aspect-ratio: 5 / 6; border: 1px solid rgba(255, 255, 255, .2); border-radius: 49% 49% 28px 28px; background: #191821; box-shadow: 0 44px 110px rgba(0, 0, 0, .55), 0 0 80px rgba(155, 120, 255, .14); }
.hero-image-frame::after { position: absolute; inset: 0; border-radius: inherit; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .08), inset 0 -80px 90px rgba(8, 8, 13, .24); content: ""; }
.hero-image-frame img { width: 100%; height: 100%; object-fit: cover; }
.hero-visual figcaption { display: flex; justify-content: space-between; margin-top: 17px; color: var(--muted); font-family: Georgia, serif; font-size: .67rem; letter-spacing: .19em; }
.hero-visual figcaption span { color: var(--gold); }
.hero-visual::before, .hero-visual::after { position: absolute; z-index: -1; border: 1px solid rgba(155, 120, 255, .24); border-radius: 50%; content: ""; }
.hero-visual::before { inset: -8% -14% 3%; transform: rotate(12deg); }
.hero-visual::after { inset: 10% -22% -8% -7%; border-color: rgba(110, 231, 255, .17); transform: rotate(-19deg); }
.hero-index { position: absolute; right: -2vw; bottom: 1%; z-index: -1; margin: 0; color: rgba(255, 255, 255, .018); font-family: Georgia, serif; font-size: clamp(8rem, 20vw, 22rem); font-weight: 700; line-height: .68; letter-spacing: -.08em; }

.gallery-section { padding-top: clamp(130px, 13vw, 210px); }
.featured-gallery { display: grid; grid-template-columns: repeat(12, 1fr); grid-auto-flow: dense; gap: 14px; }
.gallery-card { position: relative; grid-column: span 4; overflow: hidden; aspect-ratio: 5 / 6; border: 1px solid rgba(255, 255, 255, .1); border-radius: 7px; background: #12121b; isolation: isolate; }
.gallery-card:nth-child(6n + 1), .gallery-card:nth-child(6n + 6) { grid-column: span 5; }
.gallery-card:nth-child(6n + 2), .gallery-card:nth-child(6n + 5) { grid-column: span 3; }
.gallery-card img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.78) brightness(.78); transition: transform .8s var(--ease-out), filter .65s var(--ease-out); }
.gallery-card::after { position: absolute; inset: 0; z-index: 1; background: linear-gradient(to top, rgba(8, 8, 13, .76), transparent 48%); content: ""; pointer-events: none; }
.gallery-card > span { position: absolute; right: 18px; bottom: 15px; left: 18px; z-index: 2; color: rgba(255, 255, 255, .72); font-family: Georgia, serif; font-size: .62rem; letter-spacing: .16em; }
.gallery-card:hover { z-index: 3; border-color: rgba(244, 200, 116, .38); }
.gallery-card:hover img { transform: scale(1.045); filter: saturate(1.02) brightness(1); }

.model-section { --accent: var(--violet); --accent-soft: rgba(155, 120, 255, .18); }
.model-stage { position: relative; padding: 36px; border: 1px solid rgba(255, 255, 255, .09); border-radius: 28px; background: radial-gradient(circle at 50% 20%, var(--accent-soft), transparent 36%), rgba(13, 13, 21, .72); box-shadow: 0 38px 100px rgba(0, 0, 0, .24); }
.model-stage::before { position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(120deg, rgba(255, 255, 255, .025), transparent 45%); content: ""; pointer-events: none; }
.model-deck { position: relative; z-index: 1; display: flex; gap: 10px; padding-bottom: 30px; touch-action: pan-y; }
.model-card { position: relative; display: flex; flex: 1; min-width: 0; min-height: 210px; flex-direction: column; align-items: flex-start; padding: 22px; overflow: hidden; border: 1px solid rgba(255, 255, 255, .1); border-radius: 18px; color: var(--muted); background: rgba(255, 255, 255, .025); text-align: left; cursor: pointer; transition: flex .55s var(--ease-out), transform .55s var(--ease-out), border-color .55s var(--ease-out), background .55s var(--ease-out); }
.model-card::after { position: absolute; right: -60px; bottom: -80px; width: 150px; aspect-ratio: 1; border-radius: 50%; background: var(--accent-soft); filter: blur(22px); content: ""; opacity: 0; transition: opacity .5s; }
.model-card:hover, .model-card.is-active { border-color: color-mix(in srgb, var(--accent) 48%, transparent); color: var(--text); background: rgba(255, 255, 255, .055); transform: translateY(-8px); }
.model-card.is-active { flex: 1.3; box-shadow: 0 22px 60px rgba(0, 0, 0, .24); }
.model-card.is-active::after { opacity: 1; }
.model-number { color: var(--accent); font-family: Georgia, serif; font-size: .74rem; letter-spacing: .14em; }
.model-name { margin-top: auto; font-size: clamp(1.05rem, 1.5vw, 1.45rem); font-weight: 800; letter-spacing: -.04em; }
.model-tags { margin-top: 8px; color: var(--muted); font-size: .68rem; line-height: 1.7; }
.model-detail { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr minmax(300px, .72fr); align-items: center; min-height: 480px; overflow: hidden; border-radius: 20px; background: #0e0e16; }
.model-detail-copy { padding: clamp(35px, 6vw, 82px); }
.model-detail-copy h3 { max-width: 650px; margin: 0; font-size: clamp(2.25rem, 4.6vw, 5rem); line-height: 1.02; letter-spacing: -.065em; }
.model-detail-copy > p:last-child { max-width: 530px; margin: 28px 0 0; color: var(--muted); }
.model-detail > img { width: 100%; height: 100%; max-height: 580px; object-fit: cover; mask-image: linear-gradient(to right, transparent, black 25%); }

.training-section { position: relative; }
.training-grid { display: grid; grid-template-columns: .84fr 1.16fr; grid-template-areas: "hardware result" "proof proof"; gap: 14px; }
.training-figure { position: relative; min-height: 520px; margin: 0; overflow: hidden; border: 1px solid rgba(255, 255, 255, .1); border-radius: 8px; background: #12121a; }
.training-hardware { grid-area: hardware; }
.training-result { grid-area: result; }
.training-figure img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.66) contrast(1.04); }
.training-result img { object-position: top; }
.training-figure::after { position: absolute; inset: 0; background: linear-gradient(to top, rgba(8, 8, 13, .92), transparent 55%); content: ""; }
.training-figure figcaption { position: absolute; right: 28px; bottom: 25px; left: 28px; z-index: 1; display: flex; justify-content: space-between; font-size: .86rem; font-weight: 700; }
.training-figure figcaption span { color: var(--ice); font-family: Georgia, serif; font-size: .65rem; letter-spacing: .15em; }
.training-proof { grid-area: proof; display: grid; grid-template-columns: repeat(4, 1fr) auto; align-items: center; gap: 1px; overflow: hidden; border: 1px solid rgba(255, 255, 255, .1); border-radius: 8px; background: rgba(255, 255, 255, .08); }
.training-proof p, .training-proof a { min-height: 86px; margin: 0; padding: 22px; background: #101019; font-size: .78rem; }
.training-proof p { display: flex; align-items: center; }
.training-proof p::before { width: 6px; height: 6px; margin-right: 12px; border-radius: 50%; background: var(--ice); box-shadow: 0 0 13px var(--ice); content: ""; }
.training-proof a { display: flex; align-items: center; gap: 26px; color: #08080d; background: var(--ice); font-weight: 800; }

.premium-section { position: relative; display: grid; grid-template-columns: 1fr 1.1fr; align-items: center; min-height: 760px; padding: clamp(50px, 6vw, 90px); overflow: hidden; border: 1px solid rgba(255, 255, 255, .1); border-radius: 10px; background: #0e0d17; }
.premium-section::before { position: absolute; inset: 0; background: radial-gradient(circle at 78% 48%, rgba(155, 120, 255, .27), transparent 32%), linear-gradient(120deg, #0e0d17 45%, rgba(14, 13, 23, .25)); content: ""; }
.premium-copy { position: relative; z-index: 2; }
.premium-copy h2 { margin: 0; font-size: clamp(3.1rem, 6.8vw, 7rem); line-height: .91; letter-spacing: -.075em; }
.premium-copy h2 span { color: var(--violet); }
.premium-copy > p:not(.eyebrow) { max-width: 520px; margin: 30px 0 38px; color: var(--muted); }
.premium-edition-links { max-width: 980px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.premium-edition-link { position: relative; min-height: 132px; padding: 22px; display: grid; grid-template-columns: 1fr auto; align-content: space-between; gap: 18px; overflow: hidden; border: 1px solid rgba(255,255,255,.16); color: var(--text); background: rgba(255,255,255,.035); text-decoration: none; transition: border-color .25s ease, background .25s ease, transform .25s ease; }
.premium-edition-link::before { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(155,120,255,.13), transparent 55%); content: ""; opacity: 0; transition: opacity .25s ease; }
.premium-edition-link small, .premium-edition-link strong, .premium-edition-link span { position: relative; z-index: 1; }
.premium-edition-link small { grid-column: 1 / -1; color: var(--muted); font: 700 .62rem/1 Consolas, monospace; letter-spacing: .18em; }
.premium-edition-link strong { font: 500 1rem/1.35 Georgia, "Songti SC", serif; }
.premium-edition-link span { color: var(--violet); }
.premium-edition-link:is(:hover, :focus-visible) { border-color: rgba(155,120,255,.65); background: rgba(155,120,255,.08); outline: 0; transform: translateY(-3px); }
.premium-edition-link:is(:hover, :focus-visible)::before { opacity: 1; }
.premium-edition-link--edit::before { background: linear-gradient(135deg, rgba(110,231,255,.15), transparent 55%); }
.premium-edition-link--edit span { color: var(--ice); }
.premium-edition-link--edit:is(:hover, :focus-visible) { border-color: rgba(110,231,255,.65); background: rgba(110,231,255,.08); }
.premium-edition-link--vol3::before { background: linear-gradient(135deg, rgba(232,188,104,.17), rgba(111,142,120,.1) 55%, transparent); }
.premium-edition-link--vol3 small, .premium-edition-link--vol3 span { color: #e8bc68; }
.premium-edition-link--vol3:is(:hover, :focus-visible) { border-color: rgba(232,188,104,.68); background: rgba(232,188,104,.08); }
.premium-portal { position: relative; justify-self: center; width: min(80%, 470px); aspect-ratio: 3 / 4; transform: rotate(6deg); }
.premium-portal::before, .premium-portal::after { position: absolute; inset: -8%; z-index: -1; border: 1px solid rgba(155, 120, 255, .35); border-radius: 50%; content: ""; transform: rotate(18deg); }
.premium-portal::after { inset: 5% -17%; border-color: rgba(110, 231, 255, .2); transform: rotate(-31deg); }
.premium-portal img { width: 100%; height: 100%; object-fit: cover; border-radius: 50% 50% 8px 8px; filter: saturate(.62) hue-rotate(12deg); box-shadow: 0 50px 100px rgba(0, 0, 0, .55); }
.premium-portal span { position: absolute; right: -18%; bottom: 4%; color: white; font-family: Georgia, serif; font-size: clamp(2rem, 4vw, 4.4rem); font-weight: 700; line-height: .86; letter-spacing: -.05em; }

.purchase-section { display: grid; grid-template-columns: 1fr minmax(300px, 450px); align-items: center; gap: clamp(60px, 9vw, 150px); min-height: 850px; }
.purchase-copy h2 { margin: 0; font-size: clamp(3.4rem, 7.8vw, 8.2rem); line-height: .86; letter-spacing: -.085em; }
.purchase-copy h2 span { color: var(--gold); }
.purchase-copy > p:not(.eyebrow, .purchase-price) { margin: 30px 0; color: var(--muted); }
.purchase-price { display: flex; flex-wrap: wrap; align-items: baseline; gap: 18px; margin: 34px 0; }
.purchase-price strong { font-family: Georgia, serif; font-size: clamp(2rem, 4vw, 4rem); }
.purchase-price del { color: var(--muted); }
.purchase-price span { color: var(--gold); font-size: .85rem; }
.contact-card { padding: 24px; border: 1px solid rgba(244, 200, 116, .26); border-radius: 12px; background: linear-gradient(145deg, rgba(244, 200, 116, .1), rgba(155, 120, 255, .07)); transform: rotate(2deg); box-shadow: 0 40px 110px rgba(0, 0, 0, .35); }
.qr-frame { display: grid; width: 100%; aspect-ratio: 1 / 1; place-items: center; overflow: hidden; border-radius: 7px; background: #fff; }
.qr-frame img { width: 100%; height: 100%; margin: 0; object-fit: contain; }
.contact-card p { display: flex; justify-content: space-between; align-items: flex-end; margin: 20px 4px 0; }
.contact-card p span { color: var(--muted); font-family: Georgia, serif; font-size: .62rem; letter-spacing: .16em; }
.contact-card p strong { font-size: 1.2rem; letter-spacing: .05em; }

.site-footer { display: flex; justify-content: space-between; width: min(100% - 64px, 1380px); margin-inline: auto; padding: 28px 0 max(30px, env(safe-area-inset-bottom)); border-top: 1px solid rgba(255, 255, 255, .1); color: var(--muted); font-family: Georgia, serif; font-size: .61rem; letter-spacing: .15em; }
.floating-contact { position: fixed; right: max(20px, calc((100vw - 1480px) / 2)); bottom: 22px; z-index: 35; min-height: 48px; padding: 0 19px; border: 1px solid rgba(244, 200, 116, .55); border-radius: 999px; color: #131018; background: var(--gold); box-shadow: 0 15px 45px rgba(0, 0, 0, .35), 0 0 28px rgba(244, 200, 116, .12); cursor: pointer; font-size: .75rem; font-weight: 800; letter-spacing: .07em; }
.floating-contact span { margin-right: 8px; font-size: .55rem; animation: signal-pulse 2.2s ease-in-out infinite; }

.contact-dialog, .lightbox { padding: 0; border: 0; color: var(--text); background: transparent; }
.contact-dialog:not([open]):not(.is-open), .lightbox:not([open]):not(.is-open) { display: none; }
.contact-dialog::backdrop, .lightbox::backdrop { background: rgba(5, 5, 9, .84); backdrop-filter: blur(12px); }
.contact-dialog { width: min(90vw, 480px); max-width: none; text-align: center; }
.contact-dialog-panel, .lightbox-panel { position: relative; border: 1px solid rgba(255, 255, 255, .16); color: var(--text); background: #11111a; box-shadow: 0 50px 130px rgba(0, 0, 0, .7); }
.contact-dialog-panel { width: 100%; padding: 36px; border-radius: 18px; }
.contact-dialog.is-open, .lightbox.is-open { position: fixed; inset: 0; z-index: 60; width: 100vw; max-width: none; height: 100dvh; margin: 0; padding: 20px; background: rgba(5, 5, 9, .84); backdrop-filter: blur(12px); }
.contact-dialog.is-open { display: grid; place-items: center; text-align: center; }
.contact-dialog.is-open .contact-dialog-panel { width: min(90vw, 480px); }
.contact-dialog .eyebrow { margin-top: 5px; }
.contact-dialog h2 { margin: 0 0 24px; font-size: 2rem; }
.contact-dialog-panel > p:last-child { margin: 20px 0 0; }
.dialog-close, .lightbox-close { position: absolute; top: 14px; right: 14px; z-index: 2; display: grid; width: 40px; aspect-ratio: 1; place-items: center; border: 1px solid rgba(255, 255, 255, .15); border-radius: 50%; background: rgba(8, 8, 13, .7); cursor: pointer; }
.lightbox { width: min(94vw, 1150px); max-width: none; height: min(92vh, 920px); overflow: hidden; border-radius: 12px; }
.lightbox[open] { display: block; }
.lightbox-panel { display: grid; width: 100%; height: 100%; grid-template-columns: 60px 1fr 60px; align-items: center; overflow: hidden; border-radius: 12px; }
.lightbox.is-open { display: grid; place-items: center; }
.lightbox.is-open .lightbox-panel { width: min(94vw, 1150px); height: min(92vh, 920px); }
.lightbox figure { display: grid; height: 100%; min-height: 0; grid-template-rows: 1fr auto; margin: 0; padding: 24px 0; overflow: hidden; }
.lightbox figure img { width: 100%; height: 100%; min-height: 0; object-fit: contain; }
.lightbox figcaption { padding-top: 12px; color: var(--muted); font-size: .75rem; text-align: center; }
.lightbox-prev, .lightbox-next { width: 46px; aspect-ratio: 1; margin: auto; border: 1px solid rgba(255, 255, 255, .14); border-radius: 50%; background: rgba(255, 255, 255, .04); cursor: pointer; }

.js.motion-full [data-reveal]:not(.is-visible) { opacity: 0; filter: blur(8px); transform: translateY(28px); }
.js.motion-lite [data-reveal]:not(.is-visible) { opacity: 0; transform: translateY(16px); }
.js.motion-full [data-reveal], .js.motion-lite [data-reveal] { transition: opacity .8s var(--ease-out), transform .8s var(--ease-out), filter .8s var(--ease-out); }

@keyframes signal-pulse { 0%, 100% { opacity: .45; } 50% { opacity: 1; } }

@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr .72fr; gap: 30px; }
  .hero-title { font-size: clamp(4rem, 10vw, 7.2rem); }
  .hero-price { flex-wrap: wrap; }
  .section-heading { grid-template-columns: 1fr; }
  .model-deck { overflow-x: auto; padding: 10px 4px 30px; scrollbar-width: thin; }
  .model-card, .model-card.is-active { flex: 0 0 240px; transform: none; }
  .model-detail { grid-template-columns: 1fr .72fr; }
  .training-proof { grid-template-columns: repeat(2, 1fr); }
  .training-proof a { grid-column: 1 / -1; justify-content: space-between; }
  .premium-section { min-height: 660px; }
  .purchase-section { gap: 50px; }
}

@media (max-width: 760px) {
  .section { width: min(100% - 36px, 1380px); padding-block: 100px; }
  .site-header { border-radius: 22px; }
  .brand > span:last-child { display: none; }
  .hero { grid-template-columns: 1fr; width: min(100% - 36px, 1380px); padding-inline: 0; }
  .hero-copy { padding-top: 28px; }
  .hero-visual { width: min(84vw, 460px); margin-top: 30px; }
  .featured-gallery { grid-template-columns: repeat(2, 1fr); }
  .gallery-card, .gallery-card:nth-child(n) { grid-column: auto; }
  .model-stage { padding: 18px; border-radius: 20px; }
  .model-detail { grid-template-columns: 1fr; }
  .model-detail > img { max-height: 430px; mask-image: linear-gradient(to bottom, transparent, black 22%); }
  .training-grid { grid-template-columns: 1fr; grid-template-areas: "hardware" "result" "proof"; }
  .training-figure { min-height: 460px; }
  .premium-section { grid-template-columns: 1fr; min-height: auto; }
  .premium-copy { order: 2; margin-top: 65px; }
  .premium-portal { width: min(72vw, 390px); }
  .purchase-section { grid-template-columns: 1fr; }
  .contact-card { width: min(100%, 410px); transform: none; }
}

@media (max-width: 640px) {
  .site-header { inset: max(10px, env(safe-area-inset-top)) 12px auto; }
  .nav-links { display: flex; overflow-x: auto; scrollbar-width: none; }
  .hero { min-height: auto; padding-top: 132px; }
  .hero-title { font-size: clamp(3.1rem, 16vw, 5.2rem); }
  .hero-visual { transform: none !important; }
  .featured-gallery { grid-template-columns: 1fr; }
  .model-deck { overflow-x: auto; scroll-snap-type: x mandatory; }
  .model-card { min-width: min(82vw, 330px); scroll-snap-align: center; }
  .floating-contact { display: none; }

  .site-header { gap: 6px; padding-left: 9px; }
  .brand-mark { width: 35px; }
  .nav-links { margin-right: -2px; }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a { padding: 9px 10px; font-size: .68rem; }
  .hero { padding-bottom: 84px; }
  .hero-title { letter-spacing: -.085em; }
  .hero-title span { margin-left: 14px; }
  .hero-intro { margin-top: 27px; font-size: .9rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .hero-price { gap: 11px; }
  .hero-price strong { font-size: 1.9rem; }
  .hero-price > span:last-child { width: 100%; padding: 4px 0 0; border: 0; }
  .hero-visual { width: min(88vw, 420px); }
  .hero-index { display: none; }
  .section-heading { gap: 22px; margin-bottom: 42px; }
  .section-heading h2 { font-size: clamp(2.65rem, 14vw, 4.6rem); }
  .section-heading h2 span { display: block; }
  .gallery-card { border-radius: 5px; }
  .model-stage { margin-inline: -6px; padding: 12px; }
  .model-card { min-height: 190px; }
  .model-detail-copy { padding: 35px 24px; }
  .model-detail-copy h3 { font-size: 2.35rem; }
  .training-figure { min-height: 390px; }
  .training-figure figcaption { right: 18px; bottom: 17px; left: 18px; }
  .training-proof { grid-template-columns: 1fr; }
  .training-proof a { grid-column: auto; }
  .premium-section { width: calc(100% - 24px); padding: 70px 25px 50px; }
  .premium-copy h2 { font-size: clamp(3rem, 14vw, 4.7rem); }
  .premium-edition-links { grid-template-columns: 1fr; }
  .premium-edition-link { min-height: 112px; }
  .premium-portal span { right: -4%; }
  .purchase-section { min-height: auto; padding-bottom: 150px; }
  .purchase-copy h2 { font-size: clamp(3.15rem, 15vw, 5rem); }
  .purchase-price strong { width: 100%; }
  .site-footer { width: calc(100% - 36px); flex-direction: column; gap: 12px; padding-bottom: 95px; }
  .floating-contact { min-height: 46px; }
  .lightbox { width: 100vw; height: 100dvh; border: 0; border-radius: 0; }
  .lightbox-panel { grid-template-columns: 48px 1fr 48px; border-radius: 0; }
  .lightbox.is-open { padding: 0; }
  .lightbox.is-open .lightbox-panel { width: 100vw; height: 100dvh; }
  .lightbox-prev, .lightbox-next { width: 38px; }
  .contact-dialog-panel { padding: 32px 22px; }
}

@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-field { display: none; }
  [data-reveal] { opacity: 1 !important; transform: none !important; filter: none !important; }
}