:root {
  --brand: #4b3eff;
  --brand-dark: #3126d4;
  --brand-deeper: #271ec0;
  --brand-soft: #eef0ff;
  --gold: #ffb347;
  --gold-soft: #ffd08a;
  --cyan: #00d4ff;
  --ink: #0a1931;
  --text: #1a1f2c;
  --muted: #64748b;
  --nav: #3f4f66;
  --line: #e8ecf3;
  --bg: #eef0fa;
  --paper: #f3f4fb;
  --max: 72rem;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Noto Sans SC", system-ui, sans-serif;
  color: var(--text);
  background: var(--paper);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
::selection { background: rgba(255, 179, 71, .28); color: var(--ink); }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; }
[id] { scroll-margin-top: 5.2rem; }

.wrap { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }

#navbar {
  position: fixed; inset: 0 0 auto; z-index: 50;
  background: transparent; border-bottom: 1px solid transparent;
  transition: background .35s, border-color .35s, box-shadow .35s;
}
#navbar.is-scrolled,
#navbar:has(#mobile-menu.open) {
  background: rgba(243, 244, 251, .88);
  backdrop-filter: blur(18px);
  border-bottom-color: rgba(75, 62, 255, .08);
  box-shadow: 0 8px 28px rgba(10, 25, 49, .06);
}

.nav-inner {
  height: 4.4rem; display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo img { width: 36px; height: 36px; border-radius: 10px; object-fit: contain; }
.logo span { font-size: 1.12rem; font-weight: 800; letter-spacing: .04em; color: #fff; transition: color .3s; }
#navbar.is-scrolled .logo span,
#navbar:has(#mobile-menu.open) .logo span { color: var(--text); }

.nav { display: flex; gap: 28px; font-size: 14px; }
.nav-link { position: relative; color: rgba(255,255,255,.7); font-weight: 500; transition: color .25s; }
.nav-link:hover, .nav-link.is-active { color: #fff; }
#navbar.is-scrolled .nav-link,
#navbar:has(#mobile-menu.open) .nav-link { color: var(--nav); }
#navbar.is-scrolled .nav-link:hover, #navbar.is-scrolled .nav-link.is-active,
#navbar:has(#mobile-menu.open) .nav-link:hover, #navbar:has(#mobile-menu.open) .nav-link.is-active { color: var(--brand-dark); }
.nav-link.is-active::after {
  content: ""; position: absolute; left: 50%; bottom: -12px;
  width: 18px; height: 2px; border-radius: 99px; background: var(--gold); transform: translateX(-50%);
}
#navbar.is-scrolled .nav-link.is-active::after,
#navbar:has(#mobile-menu.open) .nav-link.is-active::after { background: var(--brand); }

.lang {
  display: inline-flex; align-items: center;
  height: 36px; padding: 3px; border-radius: 99px;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(255,255,255,.06);
}
.lang button {
  min-width: 32px; height: 30px; padding: 0 8px; border: 0; border-radius: 99px;
  background: transparent; color: rgba(255,255,255,.62);
  font-size: 12px; font-weight: 700; letter-spacing: .04em;
}
.lang button.is-on { background: rgba(255,255,255,.16); color: #fff; }
#navbar.is-scrolled .lang,
#navbar:has(#mobile-menu.open) .lang {
  border-color: rgba(75, 62, 255, .18); background: rgba(255,255,255,.7);
}
#navbar.is-scrolled .lang button,
#navbar:has(#mobile-menu.open) .lang button { color: var(--nav); }
#navbar.is-scrolled .lang button.is-on,
#navbar:has(#mobile-menu.open) .lang button.is-on {
  background: var(--brand); color: #fff;
}

.hero .lead {
  max-width: 40rem; margin: 0 auto 28px;
  color: rgba(226, 232, 240, .7); font-size: 15px; line-height: 1.9;
}
.intro {
  margin-top: 14px; color: #64748b; font-size: 15px; line-height: 1.9;
}
.section-head.light .intro { color: rgba(226,232,240,.62); }
.product-copy h3 { margin: 10px 0 8px; max-width: 22rem; }
.product-copy p {
  color: rgba(226,232,240,.78); font-size: 13px; line-height: 1.7;
  margin: 0 0 12px; max-width: 24rem;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 40px; padding: 0 18px; border: 0; border-radius: 99px;
  background: var(--brand); color: #fff; font-size: 14px; font-weight: 700;
  box-shadow: 0 12px 40px rgba(75, 62, 255, .22);
  transition: background .2s, transform .2s;
}
.btn:hover { background: var(--brand-deeper); transform: translateY(-1px); }
.btn-ghost {
  background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.28); box-shadow: none;
}
.btn-ghost:hover { background: rgba(255,255,255,.08); }
#navbar.is-scrolled .btn-ghost,
#navbar:has(#mobile-menu.open) .btn-ghost {
  background: #fff; color: var(--brand-dark); border-color: rgba(75, 62, 255, .3);
}
.btn-lg { height: 50px; padding: 0 34px; font-size: 15px; letter-spacing: .04em; }
.btn-white { background: #fff; color: var(--ink); }
.btn-white:hover { background: var(--gold-soft); color: var(--ink); }

.menu-btn {
  display: none; width: 40px; height: 40px; border-radius: 99px;
  border: 1px solid rgba(255,255,255,.22); background: rgba(255,255,255,.08); color: #fff;
}
#navbar.is-scrolled .menu-btn,
#navbar:has(#mobile-menu.open) .menu-btn { background: #fff; color: #475569; border-color: #e2e8f0; }
#mobile-menu { display: none; border-top: 1px solid rgba(75, 62, 255, .08); background: var(--paper); padding: 12px 16px 16px; }
#mobile-menu a { display: block; padding: 10px 4px; color: #334155; font-weight: 500; }
#mobile-menu.open { display: block; }

.hero {
  position: relative; min-height: 100vh; display: flex; flex-direction: column; justify-content: center;
  color: #fff; overflow: hidden; padding: 5.6rem 0 2rem;
}
.hero-slides { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0; transform: scale(1.08);
  transition: opacity 1.1s ease;
}
.hero-slide.is-on { opacity: 1; animation: ken 14s ease-out forwards; }
@keyframes ken {
  from { transform: scale(1.1) translate3d(0, 0, 0); }
  to { transform: scale(1) translate3d(-1.2%, -1%, 0); }
}
.hero-veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 25, 49, .45) 0%, rgba(10, 25, 49, .28) 38%, rgba(10, 25, 49, .82) 100%),
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(75, 62, 255, .22), transparent 60%);
  pointer-events: none;
}
.hero-copy {
  position: relative; z-index: 2; text-align: center;
  padding: 0 0 1.6rem;
}
.hero-copy > * { animation: fadeUp .9s cubic-bezier(.16,1,.3,1) both; }
.hero-copy .badge { animation-delay: .05s; }
.hero-copy .hero-en { animation-delay: .12s; }
.hero-copy h1 { animation-delay: .2s; }
.hero-copy .lead { animation-delay: .28s; }
.hero-copy .hero-actions { animation-delay: .4s; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: none; }
}

.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 99px;
  background: rgba(255,255,255,.08); color: var(--gold-soft);
  border: 1px solid rgba(232,215,168,.22);
  font-size: 12px; font-weight: 600; letter-spacing: .08em; margin-bottom: 18px;
}
.badge i {
  width: 6px; height: 6px; border-radius: 50%; background: var(--gold);
  box-shadow: 0 0 10px var(--gold); animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: .35; transform: scale(.75); } }
.hero-en {
  font-family: Syne, sans-serif; font-size: 11px; font-weight: 700;
  letter-spacing: .38em; color: rgba(232,215,168,.7); margin-bottom: 16px;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.6rem); font-weight: 800; line-height: 1.16;
  letter-spacing: -.03em; margin-bottom: 28px;
}
.hero h1 .grad {
  background: linear-gradient(100deg, #fff 8%, var(--gold-soft) 48%, var(--gold) 92%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.hero-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.28); box-shadow: none; }
.hero-ghost:hover { background: rgba(255,255,255,.08); }

.hero-tabs {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: repeat(4, 1fr);
  width: min(52rem, calc(100% - 40px));
  margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,.18);
  border-bottom: 1px solid rgba(255,255,255,.18);
}
.hero-tab {
  background: transparent; border: 0; color: rgba(255,255,255,.48);
  text-align: center; padding: 18px 12px 22px;
  border-right: 1px solid rgba(255,255,255,.12);
  transition: color .25s;
}
.hero-tab:last-of-type { border-right: 0; }
.hero-tab em {
  display: block; font-family: Syne, sans-serif; font-style: normal;
  font-size: 11px; letter-spacing: .18em; margin-bottom: 6px; color: var(--gold);
}
.hero-tab span { font-size: 14px; font-weight: 700; }
.hero-tab.is-on { color: #fff; }
.hero-progress {
  position: absolute; left: 0; bottom: -1px; height: 2px; width: 25%;
  background: linear-gradient(90deg, var(--gold), var(--brand));
  transform-origin: left; animation: none;
  transition: left .4s ease;
}
.hero-progress.run { animation: load 5.4s linear; }
@keyframes load { from { transform: scaleX(0); } to { transform: scaleX(1); } }

.section {
  position: relative;
  padding: 5.4rem 0;
  background:
    radial-gradient(ellipse 80% 70% at 8% 0%, rgba(75, 62, 255, .08), transparent 58%),
    radial-gradient(ellipse 55% 50% at 96% 88%, rgba(255, 179, 71, .10), transparent 52%),
    var(--paper);
}
.section-head { max-width: 44rem; margin: 0 auto 2.6rem; text-align: center; }
.section-head.light h2, .section-head.light p { color: #fff; }
.section-head.light p { color: rgba(226,232,240,.55); }
.eyebrow {
  font-family: Syne, sans-serif; font-size: 11px; font-weight: 700;
  letter-spacing: .28em; text-transform: uppercase; color: var(--gold); margin-bottom: 12px;
}
.eyebrow-light { color: var(--gold-soft); }
.section-head h2 { font-size: clamp(1.65rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -.03em; }
.section-head p { margin-top: 12px; color: #64748b; }

.dark-band {
  color: #fff;
  background:
    radial-gradient(ellipse 70% 80% at 12% 10%, rgba(75, 62, 255, .32), transparent 56%),
    radial-gradient(ellipse 55% 60% at 92% 88%, rgba(255, 179, 71, .16), transparent 50%),
    var(--ink);
}

.quote-banner {
  position: relative; border-radius: 24px; overflow: hidden;
  min-height: 220px; margin-bottom: 22px;
  display: flex; align-items: flex-end;
}
.quote-banner img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  animation: ken 18s ease-out infinite alternate;
}
.quote-banner::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(10, 25, 49, .82), rgba(10, 25, 49, .28) 70%);
}
.quote-banner div { position: relative; z-index: 1; padding: 36px 40px; max-width: 36rem; }
.quote-banner p {
  color: #fff; font-size: clamp(1.15rem, 2.2vw, 1.55rem); font-weight: 700; line-height: 1.7;
}

.mosaic { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.vcard {
  position: relative; min-height: 280px; border-radius: 22px; overflow: hidden;
  display: flex; align-items: flex-end; color: #fff;
  border: 1px solid rgba(10, 25, 49, .1);
  border-bottom: 3px solid var(--gold);
  box-shadow: 0 16px 40px rgba(10, 25, 49, .08);
}
.vcard img, .product-hero img, .stage-slide img, .rail-card img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.1s cubic-bezier(.16,1,.3,1);
}
.vcard:hover img, .product-hero:hover img { transform: scale(1.08); }
.vcard-g {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10, 25, 49, .08) 18%, rgba(10, 25, 49, .78) 100%);
}
.vcard-copy {
  position: relative; z-index: 1;
  padding: 28px 26px 24px;
  width: 100%;
}
.vcard-copy em {
  display: block; font-family: Syne, sans-serif; font-style: normal;
  font-size: 11px; letter-spacing: .18em; color: var(--gold); margin-bottom: 6px;
}
.vcard h3, .rail-copy, .stage-copy, .product-copy, .switch-copy {
  position: relative; z-index: 1;
}
.vcard h3 {
  padding: 0; margin: 0 0 8px;
  font-size: 1.28rem; font-weight: 800; letter-spacing: .02em;
}
.vcard p {
  margin: 0; max-width: 28rem;
  color: rgba(226,232,240,.78);
  font-size: 13px; line-height: 1.75;
}

.switcher { display: grid; grid-template-columns: 1.6fr .9fr; gap: 18px; min-height: 420px; }
.switch-stage { position: relative; border-radius: 24px; overflow: hidden; min-height: 420px; }
.switch-slide {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  opacity: 0; transform: scale(1.04); transition: opacity .7s ease, transform .9s ease;
}
.switch-slide.is-on { opacity: 1; transform: scale(1); }
.switch-slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10, 25, 49, .15), rgba(10, 25, 49, .78));
}
.switch-copy { position: absolute; left: 0; right: 0; bottom: 0; z-index: 1; padding: 32px; }
.switch-copy em {
  font-family: Syne, sans-serif; font-style: normal; letter-spacing: .2em;
  color: var(--gold-soft); font-size: 12px;
}
.switch-copy h3 { font-size: 1.7rem; margin: 8px 0 10px; }
.switch-copy p { color: rgba(226,232,240,.72); max-width: 32rem; line-height: 1.75; font-size: 14px; }
.switch-list { display: flex; flex-direction: column; gap: 8px; }
.switch-list button {
  flex: 1; text-align: left; border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03); color: rgba(255,255,255,.5);
  border-radius: 16px; padding: 16px 18px; font-weight: 700;
  transition: background .25s, color .25s, border-color .25s, transform .25s;
}
.switch-list button b {
  display: block; font-family: Syne, sans-serif; font-size: 11px;
  letter-spacing: .16em; color: var(--gold); margin-bottom: 4px; font-weight: 700;
}
.switch-list button.is-on {
  color: #fff; background: linear-gradient(135deg, rgba(75, 62, 255, .32), rgba(255, 179, 71, .18));
  border-color: rgba(255, 179, 71, .4); transform: translateX(-4px);
}

.rail { position: relative; display: grid; grid-template-columns: 44px 1fr 44px; gap: 10px; align-items: center; }
.rail-view { position: relative; min-height: 340px; }
.rail-card {
  position: absolute; inset: 0; border-radius: 22px; overflow: hidden;
  opacity: 0; transform: translateX(40px) scale(.96);
  transition: opacity .55s ease, transform .55s cubic-bezier(.16,1,.3,1);
  pointer-events: none; color: #fff;
  display: flex; align-items: flex-end;
}
.rail-card.is-on {
  opacity: 1; transform: none; pointer-events: auto; z-index: 2;
}
.rail-copy { padding: 28px; }
.rail-copy h3 { font-size: 1.5rem; margin-bottom: 8px; }
.rail-copy p { color: rgba(226,232,240,.78); font-size: 14px; }
.rail-btn, .stage-nav {
  width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid rgba(15,23,42,.12); background: #fff; color: var(--text);
  font-size: 22px; line-height: 1;
  box-shadow: 0 8px 24px rgba(15,23,42,.08);
}
.dark-band .rail-btn, .dark-band .stage-nav {
  background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.14);
}

.evolve-bar {
  display: flex; justify-content: center; align-items: center; flex-wrap: wrap;
  gap: 10px; margin-top: 28px; color: var(--text); font-weight: 700; font-size: 13px;
}
.evolve-bar span {
  padding: 8px 14px; border-radius: 99px;
  background: linear-gradient(135deg, var(--brand-soft), #fff4e4);
}
.evolve-bar i {
  width: 28px; height: 1px; background: linear-gradient(90deg, var(--brand), var(--gold));
  position: relative;
}
.evolve-bar i::after {
  content: ""; position: absolute; right: -1px; top: -3px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--gold);
}

.stage { position: relative; }
.stage-frame {
  position: relative; height: 460px; border-radius: 24px; overflow: hidden;
}
.stage-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity .8s ease;
}
.stage-slide.is-on { opacity: 1; z-index: 1; }
.stage-slide img { transform: scale(1.06); }
.stage-slide.crop-r img { object-position: 82% center; }
.stage-slide.crop-l img { object-position: 18% center; }
.stage-slide.is-on img { animation: ken 12s ease-out forwards; }
.stage-slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(10, 25, 49, .88));
}
.stage-copy { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 36px 40px; color: #fff; }
.stage-copy em {
  font-family: Syne, sans-serif; font-style: normal; letter-spacing: .22em; color: var(--gold-soft);
}
.stage-copy h3 { font-size: clamp(1.4rem, 3vw, 2rem); margin: 8px 0 8px; }
.stage-copy p { color: rgba(226,232,240,.72); max-width: 28rem; }
.stage-nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
}
.stage-nav.prev { left: -8px; }
.stage-nav.next { right: -8px; }
.stage-dots {
  display: flex; justify-content: center; gap: 8px; margin-top: 18px;
}
.stage-dots button {
  width: 28px; height: 3px; border: 0; border-radius: 99px;
  background: rgba(255,255,255,.22);
}
.stage-dots button.is-on { background: var(--gold); }

.product-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.product-hero {
  position: relative; min-height: 420px; border-radius: 24px; overflow: hidden;
  display: flex; align-items: flex-end; color: #fff;
}
.product-copy { padding: 32px; }
.product-copy em {
  font-family: Syne, sans-serif; font-style: normal; letter-spacing: .18em;
  color: var(--gold-soft); font-size: 13px;
}
.product-copy h3 { font-size: 1.45rem; margin: 10px 0 8px; max-width: 22rem; }
.pills { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.pills i {
  font-style: normal; font-size: 12px; padding: 4px 10px; border-radius: 99px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.16);
}
.product-copy b { font-size: 14px; letter-spacing: .06em; }

.adv-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}
.adv-card {
  position: relative;
  grid-column: span 2;
  min-height: 260px;
  border-radius: 22px;
  overflow: hidden;
  color: #fff;
  display: flex;
  align-items: flex-end;
}
.adv-card.tall { min-height: 300px; grid-column: span 3; }
.adv-card img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.1s cubic-bezier(.16,1,.3,1);
}
.adv-card:hover img { transform: scale(1.07); }
.adv-copy { position: relative; z-index: 1; padding: 24px 26px; }
.adv-copy em {
  font-family: Syne, sans-serif; font-style: normal; letter-spacing: .2em;
  color: var(--gold-soft); font-size: 11px;
}
.adv-copy h3 { font-size: 1.35rem; margin: 6px 0 8px; }
.adv-copy p { color: rgba(226,232,240,.78); font-size: 13px; line-height: 1.7; max-width: 22rem; }

.cta {
  position: relative; overflow: hidden; padding: 6.2rem 0; color: #fff; text-align: center;
}
.cta-bg {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  animation: ken 20s ease-out infinite alternate;
}
.cta::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10, 25, 49, .55), rgba(10, 25, 49, .78));
}
.cta .wrap { position: relative; z-index: 1; max-width: 42rem; }
.cta h2 { font-size: clamp(1.5rem, 3vw, 2.15rem); font-weight: 800; margin: 8px 0 14px; }
.cta p { color: rgba(226,232,240,.68); margin-bottom: 30px; line-height: 1.85; }

.footer {
  color: #fff; padding: 3.4rem 0 1.6rem;
  background-color: #071222;
  background-image:
    radial-gradient(ellipse 60% 80% at 0% 0%, rgba(75, 62, 255, .28), transparent 52%),
    radial-gradient(ellipse 50% 70% at 100% 100%, rgba(255, 179, 71, .12), transparent 48%),
    radial-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: auto, auto, 22px 22px;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.5fr auto; gap: 36px; align-items: start; }
.footer h6 { margin-bottom: 16px; letter-spacing: .12em; font-size: 12px; text-transform: uppercase; color: var(--gold-soft); }
.footer p, .footer a, .footer li { color: rgba(255,255,255,.48); font-size: 14px; line-height: 1.9; }
.footer a:hover { color: #fff; }
.footer .logo span { color: #fff; }
.footer-qr img {
  width: 112px; height: 112px; border-radius: 12px;
  background: #fff; padding: 6px; object-fit: contain;
}
.copy {
  margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.08);
  text-align: center; color: rgba(255,255,255,.28); font-size: 12px; letter-spacing: .08em;
}

.scroll-reveal { opacity: 0; transform: translateY(24px); transition: opacity .75s ease, transform .75s ease; }
.scroll-reveal.is-visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: .08s; }
.delay-2 { transition-delay: .16s; }
.delay-3 { transition-delay: .24s; }

.to-top {
  position: fixed; right: 20px; bottom: 20px; z-index: 40;
  width: 44px; height: 44px; border-radius: 50%; border: 0;
  background: var(--ink); color: var(--gold-soft); font-size: 18px;
  box-shadow: 0 12px 30px rgba(10, 25, 49, .28);
  opacity: 0; pointer-events: none; transform: translateY(8px);
  transition: opacity .25s, transform .25s;
}
.to-top.show { opacity: 1; pointer-events: auto; transform: none; }

@media (max-width: 1024px) {
  .nav { display: none; }
  .nav-actions .btn-ghost { display: none; }
  .menu-btn { display: inline-flex; align-items: center; justify-content: center; }
  .mosaic, .product-duo, .footer-grid, .switcher, .adv-grid { grid-template-columns: 1fr 1fr; }
  .adv-card, .adv-card.tall { grid-column: span 1; }
  .switcher { grid-template-columns: 1fr; }
  .switch-list { flex-direction: row; overflow-x: auto; }
  .switch-list button { min-width: 160px; }
  .stage-nav.prev { left: 8px; }
  .stage-nav.next { right: 8px; }
}
@media (max-width: 767px) {
  .mosaic, .product-duo, .footer-grid, .adv-grid {
    grid-template-columns: 1fr;
  }
  .hero { min-height: 92vh; }
  .hero-actions .btn, .cta .btn { width: 100%; }
  .nav-link.is-active::after { display: none; }
  .stage-frame { height: 380px; }
  .rail { grid-template-columns: 1fr; }
  .rail-btn { display: none; }
  .quote-banner div { padding: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-slide, .quote-banner img, .cta-bg, .hero-progress, .scroll-reveal {
    animation: none !important; opacity: 1; transform: none;
  }
}