:root {
  color-scheme: dark;
  --bg: #0b0710;
  --bg-deep: #07050a;
  --surface: #15101b;
  --surface-raised: #1d1526;
  --surface-soft: #251a30;
  --text: #f7f1fb;
  --text-muted: #b8aebf;
  --text-dim: #7e7485;
  --violet: #a96fff;
  --violet-bright: #c99aff;
  --lilac: #e5ccff;
  --coral: #ff715f;
  --lime: #c8f43d;
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.22);
  --shadow: 0 30px 100px rgba(0, 0, 0, 0.44);
  --radius-sm: 14px;
  --radius-md: 24px;
  --radius-lg: 40px;
  --max-width: 1240px;
  --header-height: 84px;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 0;
  overflow-x: hidden;
  padding-bottom: 44px;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  z-index: 999;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  border-radius: 999px;
  background: #fff;
  color: #111;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}
.skip-link:focus { transform: translateY(0); }

:focus-visible { outline: 3px solid var(--lime); outline-offset: 4px; }

.scroll-progress {
  position: fixed;
  z-index: 120;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
}
.scroll-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--coral), var(--violet-bright));
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 50%;
  width: min(calc(100% - 48px), var(--max-width));
  height: var(--header-height);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  transform: translateX(-50%);
  transition: height 260ms ease, background 260ms ease, border-color 260ms ease, backdrop-filter 260ms ease;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  height: 70px;
  width: 100%;
  padding-inline: max(24px, calc((100vw - var(--max-width)) / 2));
  background: rgba(11, 7, 16, 0.78);
  border-color: var(--line);
  backdrop-filter: blur(18px) saturate(130%);
}

.brand { display: inline-flex; align-items: center; gap: 12px; width: fit-content; }
.brand img { width: 104px; height: auto; object-fit: contain; }
.brand span { padding-left: 12px; border-left: 1px solid var(--line-strong); color: var(--text-muted); font-size: 12px; letter-spacing: 0.18em; }

.desktop-nav { display: flex; align-items: center; gap: 34px; color: var(--text-muted); font-size: 14px; }
.desktop-nav a { position: relative; padding-block: 10px; transition: color 180ms ease; }
.desktop-nav a::after { content: ""; position: absolute; right: 0; bottom: 2px; left: 0; height: 1px; background: var(--lilac); transform: scaleX(0); transition: transform 180ms ease; }
.desktop-nav a:hover { color: var(--text); }
.desktop-nav a:hover::after { transform: scaleX(1); }

.nav-cta { justify-self: end; display: inline-flex; align-items: center; gap: 18px; min-height: 46px; padding: 0 8px 0 20px; border: 1px solid var(--line-strong); border-radius: 999px; font-size: 14px; transition: background 180ms ease, border-color 180ms ease; }
.nav-cta i { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--text); color: var(--bg); font-style: normal; }
.nav-cta:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.38); }

.hero {
  position: relative;
  min-height: 100svh;
  padding: clamp(150px, 17vh, 200px) max(24px, calc((100vw - var(--max-width)) / 2)) 94px;
  display: flex;
  align-items: center;
  isolation: isolate;
  overflow: hidden;
}
.hero::after { content: ""; position: absolute; z-index: -1; inset: auto 0 0; height: 26%; background: linear-gradient(transparent, var(--bg)); pointer-events: none; }
.hero-backdrop { position: absolute; z-index: -3; inset: 0; overflow: hidden; }
.hero-backdrop > img { position: absolute; width: 100%; height: 100%; object-fit: cover; object-position: center; filter: saturate(1.08) contrast(1.05); transform: scale(1.02); }
.hero-backdrop::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7,5,10,.98) 0%, rgba(7,5,10,.88) 33%, rgba(7,5,10,.22) 67%, rgba(7,5,10,.4) 100%); }
.hero-glow { position: absolute; top: 20%; right: 10%; width: 34vw; height: 34vw; border-radius: 50%; background: rgba(167, 90, 255, .14); filter: blur(80px); }
.hero-grid { position: absolute; inset: 0; opacity: .08; background-image: linear-gradient(rgba(255,255,255,.22) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.22) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg, #000, transparent 70%); }

.hero-copy { position: relative; z-index: 2; width: min(630px, 54vw); }
.eyebrow { margin: 0 0 22px; color: var(--violet-bright); font-size: 12px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; }
.hero h1, .section-heading h2, .experience-copy h2 { margin: 0; font-weight: 720; letter-spacing: -.055em; line-height: .94; }
.hero h1 { font-size: clamp(68px, 8.2vw, 124px); }
.hero h1 span { color: transparent; -webkit-text-stroke: 1.5px rgba(247,241,251,.92); text-shadow: 0 0 35px rgba(179,115,255,.18); }
.hero-lead { width: min(540px, 100%); margin: 34px 0 0; color: var(--text-muted); font-size: clamp(16px, 1.45vw, 20px); line-height: 1.85; }
.hero-actions { display: flex; gap: 14px; margin-top: 38px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 22px; min-height: 56px; padding: 0 24px; border-radius: 999px; font-size: 15px; font-weight: 650; transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease; }
.button i { font-style: normal; font-size: 18px; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--text); color: var(--bg); box-shadow: 0 10px 40px rgba(255,255,255,.14); }
.button-primary:hover { box-shadow: 0 14px 50px rgba(201,154,255,.25); }
.button-ghost { border: 1px solid var(--line-strong); background: rgba(255,255,255,.04); backdrop-filter: blur(8px); }
.button-ghost:hover { background: rgba(255,255,255,.09); }

.hero-stats { display: flex; gap: clamp(28px, 4vw, 58px); margin: 56px 0 0; padding: 28px 0 0; border-top: 1px solid var(--line); }
.hero-stats div { min-width: 90px; }
.hero-stats dt { font: 500 clamp(27px, 2.5vw, 38px)/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: -.06em; }
.hero-stats dd { margin: 9px 0 0; color: var(--text-dim); font-size: 12px; letter-spacing: .08em; }

.hero-product-note { position: absolute; z-index: 3; right: max(34px, calc((100vw - var(--max-width)) / 2)); top: 30%; display: grid; grid-template-columns: auto 76px auto; align-items: center; gap: 12px; color: rgba(255,255,255,.66); font: 11px/1.7 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .12em; }
.note-index { color: var(--violet-bright); }
.note-line { display: block; height: 1px; background: rgba(255,255,255,.36); }
.scroll-cue { position: absolute; bottom: 36px; left: max(24px, calc((100vw - var(--max-width)) / 2)); display: flex; align-items: center; gap: 14px; color: var(--text-dim); font: 10px/1 ui-monospace, monospace; letter-spacing: .18em; writing-mode: horizontal-tb; }
.scroll-cue i { display: block; width: 54px; height: 1px; background: var(--text-dim); position: relative; }
.scroll-cue i::after { content: ""; position: absolute; top: -3px; right: 0; width: 7px; height: 7px; border-right: 1px solid var(--text-dim); border-bottom: 1px solid var(--text-dim); transform: rotate(-45deg); }

.kinetic-strip { overflow: hidden; border-block: 1px solid var(--line); background: #100b15; }
.kinetic-strip div { display: flex; width: max-content; gap: 30px; padding: 20px 0; color: var(--text-dim); font: 500 13px/1 ui-monospace, monospace; letter-spacing: .24em; animation: strip 24s linear infinite; }
.kinetic-strip span { white-space: nowrap; }
.kinetic-strip b { color: var(--coral); }
@keyframes strip { to { transform: translateX(-50%); } }

.section { width: min(calc(100% - 48px), var(--max-width)); margin: 0 auto; padding-block: clamp(108px, 14vw, 190px); }
.section-heading { display: grid; grid-template-columns: 1.1fr 1fr; column-gap: 8vw; align-items: end; margin-bottom: 74px; }
.section-heading .eyebrow { grid-column: 1 / -1; }
.section-heading h2 { font-size: clamp(48px, 6vw, 88px); }
.section-heading > p:last-child { margin: 0 0 8px; color: var(--text-muted); font-size: 17px; line-height: 1.9; }
.section-heading.compact { grid-template-columns: 1fr; max-width: 840px; }

.toy-stack { display: grid; gap: 28px; }
.toy-card { position: relative; min-height: 720px; display: grid; grid-template-columns: 1fr 1fr; align-items: center; padding: clamp(36px, 6vw, 80px); overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: radial-gradient(circle at 76% 30%, rgba(169,111,255,.14), transparent 35%), linear-gradient(135deg, #17111e, #0d0912 65%); box-shadow: var(--shadow); }
.toy-card::before { content: ""; position: absolute; inset: 0; opacity: .06; background-image: linear-gradient(rgba(255,255,255,.22) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.22) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(90deg, transparent, #000); }
.toy-d02 { background: radial-gradient(circle at 78% 32%, rgba(60,175,255,.13), transparent 35%), linear-gradient(135deg, #11151c, #090c12 65%); }
.toy-d03 { background: radial-gradient(circle at 78% 32%, rgba(255,143,77,.13), transparent 35%), linear-gradient(135deg, #1b1211, #0d0909 65%); }
.toy-copy { position: relative; z-index: 2; max-width: 520px; }
.toy-meta { display: flex; gap: 18px; align-items: center; margin-bottom: 54px; color: var(--text-muted); font: 12px/1 ui-monospace, monospace; letter-spacing: .14em; }
.toy-meta span:first-child { color: var(--violet-bright); }
.toy-d02 .toy-meta span:first-child { color: #64d5ff; }
.toy-d03 .toy-meta span:first-child { color: #ff936d; }
.toy-copy h3 { margin: 0; font-size: clamp(40px, 4.2vw, 64px); line-height: 1.08; letter-spacing: -.045em; }
.toy-copy p { margin: 28px 0 0; color: var(--text-muted); font-size: 16px; line-height: 1.9; }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 32px 0 0; padding: 0; list-style: none; }
.tag-list li { padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--text-muted); font-size: 12px; }
.app-preview { position: relative; z-index: 2; justify-self: center; width: min(300px, 76%); margin: 0; }
.preview-chrome { position: relative; z-index: 3; display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; color: var(--text-dim); font: 9px/1 ui-monospace, monospace; letter-spacing: .12em; }
.preview-chrome span:first-child { display: inline-flex; align-items: center; gap: 7px; color: var(--text-muted); }
.preview-chrome span:first-child::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #28c76f; box-shadow: 0 0 0 4px rgba(40,199,111,.1); }
.iphone-shot { position: relative; z-index: 2; width: 100%; aspect-ratio: 367 / 794; overflow: hidden; border: 0; border-radius: 42px; background: #0d0808; box-shadow: 0 0 0 1px rgba(255,255,255,.2), 0 36px 80px rgba(0,0,0,.58); transition: transform 500ms var(--ease); }
.iphone-shot img { display: block; width: 100%; height: 100%; aspect-ratio: 367 / 794; object-fit: contain; object-position: center; }
.toy-card:hover .iphone-shot { transform: translateY(-8px); }
.app-preview figcaption { margin-top: 16px; color: var(--text-dim); text-align: center; font: 9px/1.5 ui-monospace, monospace; letter-spacing: .1em; }
.device-halo { position: absolute; top: 14%; left: 50%; width: 130%; aspect-ratio: 1; border: 1px solid rgba(196,151,255,.28); border-radius: 50%; transform: translateX(-50%); box-shadow: 0 0 80px rgba(169,111,255,.12), inset 0 0 50px rgba(169,111,255,.08); animation: breathe 5s ease-in-out infinite; }
.toy-d02 .device-halo { border-color: rgba(70,199,255,.26); box-shadow: 0 0 80px rgba(38,168,255,.12); }
.toy-d03 .device-halo { border-color: rgba(255,130,82,.25); box-shadow: 0 0 80px rgba(255,118,70,.1); }
@keyframes breathe { 50% { transform: translateX(-50%) scale(1.06); opacity: .62; } }

.features-section { padding-top: 40px; }
.bento-grid { display: grid; grid-template-columns: 1.25fr .75fr; grid-template-rows: repeat(2, minmax(340px, auto)); gap: 22px; }
.bento-card { position: relative; display: flex; flex-direction: column; justify-content: flex-end; min-height: 340px; padding: 38px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.bento-card > div:last-child { position: relative; z-index: 2; max-width: 520px; }
.bento-card .eyebrow { margin-bottom: 14px; }
.bento-card h3 { margin: 0; font-size: clamp(30px, 3vw, 46px); line-height: 1.14; letter-spacing: -.035em; }
.bento-card p:last-child { margin: 18px 0 0; color: var(--text-muted); line-height: 1.8; }
.bento-number { position: absolute; top: 28px; left: 32px; color: var(--text-dim); font: 11px/1 ui-monospace, monospace; }
.bento-large { grid-row: 1 / 3; min-height: 704px; background: radial-gradient(circle at 50% 35%, rgba(171,102,255,.18), transparent 32%), #130d19; }
.bento-sound { background: linear-gradient(145deg, #211426, #120c17); }
.bento-style { background: linear-gradient(145deg, #18141f, #0f0c13); }
.touch-rings { position: absolute; top: 42%; left: 50%; width: 330px; aspect-ratio: 1; transform: translate(-50%, -50%); }
.touch-rings i { position: absolute; inset: calc(var(--i, 0) * 35px); border: 1px solid rgba(210,170,255,.35); border-radius: 50%; animation: ring 3s ease-out infinite; }
.touch-rings i:nth-child(1) { --i: 0; }
.touch-rings i:nth-child(2) { --i: 1; animation-delay: -.8s; }
.touch-rings i:nth-child(3) { --i: 2; animation-delay: -1.6s; }
.touch-rings b { position: absolute; top: 50%; left: 50%; width: 52px; height: 52px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #fff, var(--violet) 35%, #30143d 74%); transform: translate(-50%, -50%); box-shadow: 0 0 44px rgba(181,105,255,.62); }
@keyframes ring { 50% { opacity: .34; transform: scale(1.06); } }
.sound-bars { position: absolute; top: 48px; right: 32px; left: 32px; height: 130px; display: flex; align-items: center; justify-content: center; gap: 10px; }
.sound-bars i { width: 7px; height: var(--h); border-radius: 99px; background: linear-gradient(var(--coral), var(--violet)); animation: bars 1.2s ease-in-out infinite alternate; animation-delay: var(--d); }
.sound-bars i:nth-child(1), .sound-bars i:nth-child(9) { --h: 24px; --d: -.8s; }
.sound-bars i:nth-child(2), .sound-bars i:nth-child(8) { --h: 54px; --d: -.4s; }
.sound-bars i:nth-child(3), .sound-bars i:nth-child(7) { --h: 78px; --d: -.9s; }
.sound-bars i:nth-child(4), .sound-bars i:nth-child(6) { --h: 108px; --d: -.2s; }
.sound-bars i:nth-child(5) { --h: 126px; --d: -.6s; }
@keyframes bars { to { transform: scaleY(.45); opacity: .52; } }
.style-orbs { position: absolute; top: 34px; right: 30px; width: 220px; height: 140px; }
.style-orbs i { position: absolute; width: 78px; height: 78px; border-radius: 50%; border: 1px solid rgba(255,255,255,.18); box-shadow: 0 16px 36px rgba(0,0,0,.3); }
.style-orbs i:nth-child(1) { left: 0; top: 30px; background: radial-gradient(circle at 32% 28%, #ffb36b, #bf3c6f 48%, #35133f); }
.style-orbs i:nth-child(2) { left: 50px; top: 0; background: radial-gradient(circle at 28% 30%, #bdfbff, #597bff 48%, #2d143c); }
.style-orbs i:nth-child(3) { left: 100px; top: 40px; background: radial-gradient(circle at 30% 30%, #f3ff74, #55b579 45%, #15231c); }
.style-orbs i:nth-child(4) { left: 145px; top: 4px; background: radial-gradient(circle at 32% 30%, #ffe8cf, #df8d66 45%, #492019); }
.style-orbs i:nth-child(5) { left: 78px; top: 72px; background: radial-gradient(circle at 32% 30%, #faf4ff, #aa72d4 48%, #31183f); }

.experience-section { position: relative; width: min(calc(100% - 48px), var(--max-width)); min-height: 620px; margin: 30px auto 0; padding: clamp(48px, 5vw, 68px); display: grid; grid-template-columns: 1fr .8fr; align-items: center; gap: clamp(36px, 5vw, 68px); overflow: hidden; scroll-margin-top: calc(var(--header-height) + 12px); border: 1px solid rgba(202,154,255,.22); border-radius: var(--radius-lg); background: radial-gradient(circle at 72% 48%, rgba(160,88,255,.24), transparent 30%), linear-gradient(125deg, #1b1025, #0b0810 68%); box-shadow: 0 40px 120px rgba(0,0,0,.46); }
.experience-section::before { content: ""; position: absolute; inset: 0; opacity: .09; background-image: linear-gradient(rgba(255,255,255,.2) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.2) 1px, transparent 1px); background-size: 54px 54px; mask-image: radial-gradient(circle at 72% 50%, #000, transparent 60%); }
.experience-copy { position: relative; z-index: 2; }
.experience-copy h2 { font-size: clamp(56px, 6vw, 92px); }
.experience-copy h2 .experience-line { color: inherit; white-space: nowrap; }
.experience-copy h2 em { color: var(--violet-bright); font-style: normal; }
.experience-copy > p:not(.eyebrow) { max-width: 500px; margin: 22px 0 0; color: var(--text-muted); font-size: 17px; line-height: 1.9; }
.steps { display: flex; gap: 10px; margin: 26px 0 0; padding: 0; list-style: none; }
.steps li { display: flex; flex-direction: column; gap: 8px; min-width: 112px; padding: 14px; border-top: 1px solid var(--line-strong); color: var(--text-muted); font-size: 13px; }
.steps span { color: var(--violet-bright); font: 10px/1 ui-monospace, monospace; }
.qr-stage { position: relative; z-index: 2; justify-self: center; width: min(340px, 100%); }
.qr-card { position: relative; z-index: 2; padding: 16px; border-radius: 28px; background: #faf8f7; color: #17131a; box-shadow: 0 32px 90px rgba(0,0,0,.52), 0 0 0 1px rgba(255,255,255,.22); transition: transform 380ms var(--ease); }
.qr-card:hover { transform: translateY(-5px); }
.qr-square { width: 100%; aspect-ratio: 1 / 1; overflow: hidden; border-radius: 18px; background: #fff; }
.qr-square img { display: block; width: 100%; height: 100%; aspect-ratio: 1 / 1; object-fit: contain; }
.qr-topline { display: flex; align-items: center; justify-content: space-between; padding: 0 6px 14px; color: #665d68; font: 9px/1 ui-monospace, monospace; letter-spacing: .12em; }
.qr-topline i { width: 8px; height: 8px; border-radius: 50%; background: #19b968; box-shadow: 0 0 0 4px rgba(25,185,104,.13); }
.qr-caption { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 8px 0; border-top: 1px solid #e3dde5; }
.qr-caption img { width: 96px; height: auto; filter: drop-shadow(0 2px 3px rgba(0,0,0,.14)); }
.qr-caption span { color: #6c6370; font-size: 11px; }
.qr-orbit { position: absolute; z-index: 1; inset: -60px; border: 1px solid rgba(203,159,255,.24); border-radius: 50%; transform: rotate(-9deg); box-shadow: 0 0 90px rgba(160,83,255,.2); animation: orbit 8s ease-in-out infinite; }
.qr-orbit::after { content: ""; position: absolute; top: 48%; left: -5px; width: 10px; height: 10px; border-radius: 50%; background: var(--violet-bright); box-shadow: 0 0 24px var(--violet); }
@keyframes orbit { 50% { transform: rotate(3deg) scale(1.04); } }

.site-footer { width: min(calc(100% - 48px), var(--max-width)); margin: 0 auto; padding: 92px 0 72px; display: flex; align-items: center; justify-content: space-between; gap: 36px; border-top: 1px solid var(--line); }
.footer-brandline { display: flex; align-items: center; gap: 22px; }
.footer-brandline img { width: 124px; height: auto; }
.footer-brandline p { display: flex; flex-direction: column; gap: 5px; margin: 0; color: var(--text-dim); font-size: 12px; line-height: 1.5; }
.footer-brandline strong { color: var(--text-muted); font-size: 13px; font-weight: 650; }
.footer-copyright { margin: 0; color: var(--text-dim); font-size: 12px; }

.filing-dock { position: fixed; z-index: 110; right: 0; bottom: 0; left: 0; height: 44px; display: flex; align-items: center; justify-content: center; gap: 16px; border-top: 1px solid var(--line); background: rgba(8,5,11,.9); backdrop-filter: blur(18px); color: var(--text-dim); font-size: 11px; letter-spacing: .08em; }
.filing-dock a { display: inline-flex; align-items: center; gap: 8px; color: var(--text-muted); font-size: 12px; font-weight: 600; letter-spacing: .04em; }
.filing-dock a:hover { color: var(--text); text-decoration: underline; text-underline-offset: 3px; }
.filing-dock i { font-style: normal; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity 800ms var(--ease), transform 800ms var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 190ms; }
.reveal-delay-3 { transition-delay: 280ms; }

@media (max-width: 900px) {
  :root { --header-height: 74px; }
  .site-header { grid-template-columns: 1fr auto; width: calc(100% - 36px); }
  .desktop-nav { display: none; }
  .brand span { display: none; }
  .nav-cta { font-size: 12px; min-height: 42px; padding-left: 16px; gap: 10px; }
  .hero { min-height: 960px; padding-top: 134px; align-items: flex-start; }
  .hero-copy { width: min(680px, 100%); }
  .hero-backdrop > img { object-position: 60% center; opacity: .8; }
  .hero-backdrop::after { background: linear-gradient(180deg, rgba(7,5,10,.92) 0%, rgba(7,5,10,.58) 45%, rgba(7,5,10,.82) 100%); }
  .hero-product-note { top: auto; right: 24px; bottom: 110px; }
  .section-heading { grid-template-columns: 1fr; gap: 28px; }
  .section-heading > p:last-child { max-width: 600px; }
  .toy-card { min-height: auto; grid-template-columns: 1fr; gap: 56px; }
  .toy-copy { max-width: 650px; }
  .app-preview { width: min(300px, 68vw); }
  .bento-grid { grid-template-columns: 1fr; grid-template-rows: auto; }
  .bento-large { grid-row: auto; min-height: 650px; }
  .bento-sound, .bento-style { min-height: 420px; }
  .experience-section { min-height: auto; grid-template-columns: 1fr; gap: 36px; }
  .experience-copy { max-width: 680px; }
  .site-footer { align-items: flex-start; }
}

@media (max-width: 600px) {
  body { padding-bottom: 50px; }
  .site-header.is-scrolled { padding-inline: 18px; }
  .brand img { width: 94px; }
  .nav-cta i { width: 28px; height: 28px; }
  .hero { min-height: 900px; padding-inline: 20px; padding-bottom: 110px; }
  .hero h1 { font-size: clamp(62px, 19vw, 86px); }
  .hero-lead { font-size: 15px; line-height: 1.75; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .button { width: 100%; }
  .hero-stats { gap: 16px; justify-content: space-between; }
  .hero-stats div { min-width: 0; }
  .hero-stats dt { font-size: 24px; }
  .hero-stats dd { font-size: 10px; line-height: 1.4; }
  .hero-product-note { display: none; }
  .scroll-cue { left: 20px; bottom: 32px; }
  .section, .experience-section, .site-footer { width: calc(100% - 32px); }
  .section { padding-block: 104px; }
  .section-heading { margin-bottom: 46px; }
  .section-heading h2 { font-size: 48px; }
  .section-heading > p:last-child { font-size: 15px; line-height: 1.75; }
  .toy-stack { gap: 18px; }
  .toy-card { padding: 32px 22px 40px; border-radius: 28px; }
  .toy-meta { margin-bottom: 32px; }
  .toy-copy h3 { font-size: 38px; }
  .toy-copy p { font-size: 14px; line-height: 1.75; }
  .app-preview { width: min(272px, 78vw); }
  .iphone-shot { border-radius: 34px; }
  .bento-card { padding: 28px 24px; }
  .bento-large { min-height: 580px; }
  .touch-rings { width: 280px; }
  .bento-card h3 { font-size: 32px; }
  .experience-section { padding: 32px 20px 36px; gap: 20px; border-radius: 28px; }
  .experience-section .eyebrow { margin-bottom: 12px; }
  .experience-copy h2 { font-size: 48px; }
  .experience-copy > p:not(.eyebrow) { margin-top: 14px; font-size: 15px; line-height: 1.7; }
  .steps { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 16px; }
  .steps li { min-width: 0; padding-inline: 6px; font-size: 11px; }
  .qr-stage { width: min(270px, 100%); }
  .qr-card { padding: 10px; border-radius: 22px; }
  .qr-topline { padding-bottom: 10px; }
  .qr-square { border-radius: 14px; }
  .qr-caption { align-items: flex-end; padding-top: 10px; }
  .qr-caption span { max-width: 82px; text-align: right; }
  .site-footer { padding: 72px 0 48px; align-items: flex-start; flex-direction: column; gap: 22px; }
  .footer-brandline { gap: 16px; }
  .footer-brandline img { width: 108px; }
  .filing-dock { height: 50px; gap: 8px; flex-direction: column; line-height: 1; }
  .filing-dock > span { display: none; }
}

@media (max-width: 360px) {
  .section-heading h2 { font-size: 42px; }
  .toy-copy h3 { font-size: 34px; }
  .experience-copy h2 { font-size: 40px; }
  .toy-card { padding-inline: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}