:root {
  color-scheme: dark;
  --bg: #090d14;
  --surface: #111722;
  --surface-2: #171f2c;
  --line: rgba(255, 255, 255, 0.12);
  --muted: #9da8b7;
  --text: #f6f8fb;
  --accent: #ff7a18;
  --accent-2: #ffae45;
  --green: #5fd1a2;
  --max: 1180px;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.65; }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; opacity: .24; background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(to bottom, black, transparent 72%); z-index: -1; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
img { display: block; max-width: 100%; }
.skip-link { position: absolute; left: -999px; top: 10px; padding: .7rem 1rem; background: white; color: black; z-index: 100; }
.skip-link:focus { left: 10px; }
.site-header { position: sticky; top: 0; z-index: 30; min-height: 76px; display: flex; align-items: center; gap: 2rem; padding: .8rem max(24px, calc((100vw - var(--max)) / 2)); background: rgba(9, 13, 20, .82); backdrop-filter: blur(18px); border-bottom: 1px solid var(--line); }
.brand, .footer-brand { display: inline-flex; align-items: center; gap: .8rem; text-decoration: none; }
.brand img, .footer-brand img { border-radius: 12px; }
.brand span, .footer-brand span { display: grid; line-height: 1.25; }
.brand strong { font-size: 1rem; }
.brand small, .footer-brand small { color: var(--muted); font-size: .78rem; }
nav { margin-left: auto; display: flex; gap: 1.8rem; }
nav a { text-decoration: none; color: #c7cfda; font-size: .92rem; }
nav a:hover, nav a:focus-visible, .footer-links a:hover { color: var(--accent-2); }
.share-button, .primary-button, .secondary-button { border-radius: 10px; min-height: 46px; padding: .75rem 1.1rem; border: 1px solid transparent; cursor: pointer; font-weight: 700; }
.share-button { background: transparent; color: white; border-color: rgba(255,122,24,.55); }
.primary-button { background: var(--accent); color: #120a03; box-shadow: 0 10px 30px rgba(255,122,24,.18); }
.secondary-button { background: rgba(255,255,255,.04); color: white; border-color: var(--line); }
button:disabled { cursor: not-allowed; opacity: .48; box-shadow: none; }
.section-shell { max-width: var(--max); margin-inline: auto; padding-inline: 24px; }
.hero { min-height: 780px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 3rem; align-items: center; padding-top: 5rem; padding-bottom: 5rem; }
.eyebrow { color: var(--accent-2); text-transform: uppercase; letter-spacing: .08em; font-size: .82rem; font-weight: 750; }
.status-dot { display: inline-block; width: 8px; height: 8px; margin-right: .55rem; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px rgba(255,122,24,.12); }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(3rem, 6vw, 5.8rem); line-height: .98; letter-spacing: -.055em; margin: 1.3rem 0 1.6rem; }
h1 span { color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,.55); }
.hero-lead { max-width: 670px; color: #bdc6d1; font-size: 1.12rem; }
.hero-lead strong { color: #fff; }
.hero-free-promise { display: inline-flex; align-items: center; gap: .7rem; margin: .4rem 0 .75rem; padding: .5rem .7rem; border: 1px solid rgba(70,211,145,.42); border-radius: 999px; background: rgba(70,211,145,.08); }
.hero-free-promise strong { color: #77e5ad; font-size: 1rem; }
.hero-free-promise span { padding-left: .7rem; border-left: 1px solid rgba(255,255,255,.16); color: #c6ced8; font-size: .8rem; }
.hero-benefits { display: grid; gap: .58rem; margin: 1.35rem 0 0; padding: 0; list-style: none; color: #dbe1e9; }
.hero-benefits li { position: relative; padding-left: 1.75rem; }
.hero-benefits li::before { content: "✓"; position: absolute; left: 0; top: .05rem; color: var(--green); font-weight: 900; }
.download-card { margin-top: 2rem; padding: 1.35rem; background: linear-gradient(135deg, rgba(255,255,255,.075), rgba(255,255,255,.025)); border: 1px solid rgba(255,122,24,.42); border-radius: 18px; box-shadow: 0 24px 70px rgba(0,0,0,.34); }
.download-card > div:first-child { display: grid; grid-template-columns: 1fr auto; column-gap: 1rem; }
.download-card h2 { grid-column: 1; font-size: 1.35rem; margin: .1rem 0 .35rem; }
.download-card p { grid-column: 1; color: var(--muted); margin-bottom: 0; font-size: .9rem; }
.download-card > .primary-button { float: right; margin-top: -4.1rem; }
.download-card .download-cta { justify-content: center; min-width: 172px; }
.download-assurance { clear: both; padding-top: .95rem; color: #c6ced8 !important; font-size: .82rem !important; }
.card-label { color: var(--accent-2); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 700; }
.release-meta { clear: both; display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; padding-top: 1.2rem; margin: 1.4rem 0 0; border-top: 1px solid var(--line); }
.release-meta div { min-width: 0; }
.release-meta dt { color: var(--muted); font-size: .76rem; }
.release-meta dd { margin: .1rem 0 0; font-size: .9rem; }
.release-meta .hash-row { grid-column: 1 / -1; }
.hash-row dd { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; overflow-wrap: anywhere; color: #d9dee6; }
.release-notes { margin-top: .9rem; border-top: 1px solid var(--line); padding-top: .75rem; }
.release-notes summary { cursor: pointer; font-size: .9rem; color: #dce2ea; }
.release-notes ul { margin-bottom: 0; color: var(--muted); font-size: .88rem; }
.share-guide { margin-top: 1rem; color: var(--muted); font-size: .9rem; }
.text-button { border: 0; padding: 0; color: var(--accent-2); background: transparent; cursor: pointer; text-decoration: underline; }
.hero-visual { position: relative; min-height: 690px; display: grid; place-items: center; overflow: hidden; }
.hero-visual::before { content: ""; position: absolute; width: 520px; height: 520px; border-radius: 50%; background: radial-gradient(circle, rgba(255,122,24,.23), transparent 65%); filter: blur(12px); }
.model-grid { position: absolute; inset: 9% 0 0 3%; transform: perspective(700px) rotateX(62deg) rotateZ(-9deg); transform-origin: center; background-image: linear-gradient(rgba(255,122,24,.32) 1px, transparent 1px), linear-gradient(90deg, rgba(255,122,24,.32) 1px, transparent 1px); background-size: 44px 44px; mask-image: radial-gradient(circle, black, transparent 68%); }
.phone { position: relative; width: min(340px, 64vw); margin: 0; border-radius: 38px; overflow: hidden; border: 7px solid #202733; background: #10151e; box-shadow: 0 32px 86px rgba(0,0,0,.56); transform: none; }
.phone img,
.phone video { display: block; width: 100%; height: auto; }
.phone video { aspect-ratio: 6 / 13; object-fit: cover; background: #070a0f; }
.phone figcaption { padding: .72rem .9rem .82rem; color: #d7dee7; background: #111722; border-top: 1px solid var(--line); text-align: center; font-size: .82rem; font-weight: 700; }
.trust-strip { border-block: 1px solid var(--line); min-height: 64px; display: flex; justify-content: center; align-items: center; gap: clamp(1.5rem, 5vw, 5rem); padding: .8rem 24px; color: #c0c8d3; font-size: .88rem; }
.trust-strip span::before { content: "/"; color: var(--accent); margin-right: .7rem; }
.scenarios, .demos, .features, .plans, .proof, .install, .faq, .support { padding-top: 7rem; padding-bottom: 7rem; }
.section-heading { max-width: 790px; margin-bottom: 3rem; }
.section-heading.compact { max-width: 700px; }
.section-heading h2, .support h2 { font-size: clamp(2.2rem, 4vw, 4rem); line-height: 1.08; letter-spacing: -.04em; margin-bottom: 1rem; }
.section-heading > p:last-child, .support-copy > p { color: var(--muted); font-size: 1.05rem; }
.scenario-intro { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(420px, .92fr); gap: 2rem; align-items: stretch; margin-bottom: 2rem; }
.scenario-intro .section-heading { align-self: center; margin-bottom: 0; }
.scenario-video-card { display: grid; grid-template-columns: minmax(0, 1fr) 178px; min-height: 340px; overflow: hidden; border: 1px solid rgba(255,122,24,.35); border-radius: 22px; background: linear-gradient(145deg, rgba(255,122,24,.1), rgba(255,255,255,.025)); }
.scenario-video-copy { align-self: center; padding: 1.35rem; }
.scenario-video-copy > span { color: var(--accent-2); font-size: .78rem; font-weight: 800; letter-spacing: .06em; }
.scenario-video-copy h3 { margin: .65rem 0; font-size: 1.35rem; }
.scenario-video-copy p { margin: 0; color: var(--muted); font-size: .9rem; }
.scenario-video-card video { width: 100%; height: 100%; object-fit: cover; background: #070a0f; }
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.scenario-grid article { display: grid; grid-template-rows: 260px 1fr; min-height: 480px; padding: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(145deg, rgba(255,122,24,.08), rgba(255,255,255,.025)); }
.scenario-grid video { width: 100%; height: 260px; object-fit: contain; background: #090d14; border-bottom: 1px solid var(--line); }
.scenario-card-copy { padding: 1.45rem 1.7rem 1.7rem; }
.scenario-card-copy > span { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-weight: 800; }
.scenario-grid h3 { margin: 1.25rem 0 .7rem; font-size: 1.4rem; }
.scenario-grid p { margin: 0; color: var(--muted); }
.demos { border-top: 1px solid var(--line); }
.demo-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 1rem; align-items: start; }
.demo-card { display: grid; grid-template-columns: minmax(0, 1fr) minmax(210px, 280px); gap: 1.2rem; align-items: center; min-height: 540px; padding: 1.35rem; border: 1px solid var(--line); border-radius: 24px; background: var(--surface); overflow: hidden; }
.demo-card-primary { border-color: rgba(255,122,24,.38); background: linear-gradient(145deg, rgba(255,122,24,.08), var(--surface) 48%); }
.demo-copy { align-self: center; }
.demo-copy > span { color: var(--accent-2); font-size: .78rem; font-weight: 800; letter-spacing: .06em; }
.demo-copy h3 { margin: 1rem 0 .7rem; font-size: clamp(1.45rem, 2.5vw, 2.3rem); line-height: 1.12; }
.demo-copy p { margin: 0; color: var(--muted); }
.demo-card video { width: 100%; max-height: 510px; border: 5px solid #202733; border-radius: 22px; background: #070a0f; box-shadow: 0 22px 54px rgba(0,0,0,.38); }
.feature-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 2.5rem; align-items: stretch; }
.product-shot { margin: 0; max-height: 710px; overflow: hidden; border-radius: 28px; border: 1px solid var(--line); background: var(--surface); }
.product-shot img { width: 100%; height: auto; }
.product-shot.feature-crop { height: 710px; }
.product-shot.feature-crop img { height: 100%; object-fit: cover; object-position: center bottom; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.feature-grid article { min-height: 250px; padding: 2rem; background: var(--surface); border: 1px solid var(--line); border-radius: 22px; overflow: hidden; }
.feature-grid article:hover { background: var(--surface-2); }
.feature-index { color: var(--accent); font-family: ui-monospace, monospace; font-size: .8rem; }
.feature-grid h3 { font-size: 1.35rem; margin: 2.6rem 0 .6rem; }
.feature-grid p { color: var(--muted); margin: 0; }
.feature-grid-visual article { display: grid; grid-template-columns: minmax(180px, .78fr) minmax(0, 1.22fr); min-height: 470px; padding: 0; }
.feature-card-media { position: relative; display: grid; place-items: center; min-width: 0; margin: 0; padding: 1rem .8rem 3.4rem; background: #0c1119; border-right: 1px solid var(--line); overflow: hidden; }
.feature-card-media img,
.feature-card-media video { width: 100%; height: 100%; max-height: 420px; object-fit: contain; object-position: center; }
.feature-card-media video { border-radius: 14px; background: #070a0f; }
.feature-card-media figcaption { position: absolute; left: .7rem; right: .7rem; bottom: .75rem; padding: .45rem .6rem; border: 1px solid rgba(255,122,24,.34); border-radius: 8px; background: rgba(9,13,20,.94); color: var(--accent-2); text-align: center; font-size: .76rem; font-weight: 750; }
.feature-card-copy { align-self: center; padding: 1.5rem; }
.feature-grid-visual h3 { margin: .65rem 0 .7rem; }
.capability-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1rem; }
.capability-gallery figure { position: relative; margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 22px; background: var(--surface); }
.capability-gallery img { width: 100%; height: 480px; object-fit: cover; object-position: center bottom; }
.capability-gallery figcaption { display: grid; gap: .3rem; padding: 1.2rem 1.35rem 1.35rem; }
.capability-gallery figcaption strong { font-size: 1.05rem; }
.capability-gallery figcaption span { color: var(--muted); font-size: .92rem; }
.plans { max-width: none; background: #0d121b; border-block: 1px solid var(--line); }
.plans > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.open-path-guide { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.4rem; margin: -1rem auto 2.5rem; padding: 1rem; border: 1px solid rgba(255,122,24,.32); border-radius: 18px; background: rgba(255,122,24,.055); }
.open-path-guide li { position: relative; display: grid; grid-template-columns: 42px 1fr; column-gap: .85rem; align-items: center; padding: .45rem .55rem; }
.open-path-guide li:not(:last-child)::after { content: "→"; position: absolute; right: -1.75rem; color: var(--accent); font-size: 1.45rem; font-weight: 800; }
.open-path-guide .guide-icon { grid-row: 1 / 3; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; background: var(--accent); color: #160b03; font-weight: 900; }
.open-path-guide strong { font-size: .95rem; }
.open-path-guide small { color: var(--muted); }
.open-path-guide .guide-disabled .guide-icon { background: rgba(255,255,255,.12); color: #dce2ea; }
.open-path-guide .guide-disabled strong { color: var(--accent-2); }
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.plan-card { position: relative; display: flex; flex-direction: column; padding: 1.7rem; min-height: 560px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; }
.plan-card.featured { border-color: var(--accent); transform: translateY(-12px); box-shadow: 0 24px 60px rgba(255,122,24,.1); }
.plan-badge { position: absolute; top: 0; right: 1.3rem; padding: .35rem .75rem; border-radius: 0 0 9px 9px; background: var(--accent); color: #211005; font-size: .75rem; font-weight: 800; }
.plan-number { color: var(--muted); font-family: ui-monospace, monospace; }
.plan-card h3 { margin: 1.2rem 0; font-size: 1.35rem; }
.price { display: flex; align-items: baseline; gap: .4rem; margin-bottom: .15rem; }
.price strong { font-size: 3rem; line-height: 1; }
.price span, .annual { color: var(--muted); font-size: .88rem; }
.annual { min-height: 1.5rem; color: var(--accent-2); }
.plan-card ul { padding-left: 1.2rem; margin: 1.6rem 0 2rem; color: #cbd2dc; }
.plan-card li { margin: .65rem 0; }
.plan-card li::marker { color: var(--accent); }
.plan-card .secondary-button, .plan-state { margin-top: auto; text-align: center; }
.plan-state { padding: .75rem; color: var(--green); border: 1px solid rgba(95,209,162,.25); border-radius: 10px; }
.pricing-note { color: var(--muted); font-size: .9rem; margin-top: 1.5rem; }
.pricing-note a { color: var(--accent-2); }
.technical-note { margin-top: 1.25rem; padding: 1rem 1.2rem; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.025); color: var(--muted); }
.technical-note summary { color: #d7dee7; cursor: pointer; font-weight: 700; }
.technical-note p { margin: .8rem 0 0; }
.proof { border-top: 1px solid var(--line); }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.proof-grid article { padding: 1.5rem; border: 1px solid rgba(95,209,162,.22); border-radius: 16px; background: rgba(95,209,162,.045); }
.proof-grid strong { display: block; margin-bottom: .55rem; color: var(--green); font-size: 1.08rem; }
.proof-grid p { margin: 0; color: var(--muted); font-size: .92rem; }
.install-steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.install-steps li { padding: 1.6rem; background: var(--surface); min-height: 260px; }
.install-steps li > span { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: rgba(255,122,24,.13); color: var(--accent-2); font-weight: 800; }
.install-steps h3 { margin: 2.4rem 0 .55rem; }
.install-steps p { color: var(--muted); font-size: .9rem; }
.security-callout { display: grid; grid-template-columns: auto 1fr; gap: 1.3rem; margin-top: 1.2rem; padding: 1.5rem; border: 1px solid rgba(95,209,162,.28); background: rgba(95,209,162,.05); border-radius: 16px; }
.lock-mark { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--green); color: #082218; font-weight: 900; }
.security-callout h3 { margin-bottom: .25rem; }
.security-callout p { margin: 0; color: var(--muted); }
.support { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, 320px); align-items: center; gap: clamp(2rem, 5vw, 5rem); }
.support-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.link-button { display: inline-flex; align-items: center; text-decoration: none; }
.qr-card { width: 100%; max-width: 320px; justify-self: end; margin: 0; padding: 1rem; overflow: hidden; background: white; border-radius: 18px; color: #10151d; text-align: center; transform: none; }
.qr-card img { width: 100%; height: auto; aspect-ratio: 1 / 1; object-fit: contain; object-position: center; border-radius: 8px; background: white; }
.qr-card figcaption { padding-top: .7rem; font-weight: 700; }
.faq { border-top: 1px solid var(--line); }
.faq-list { display: grid; gap: .75rem; max-width: 900px; }
.faq-list details { padding: 1.15rem 1.3rem; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.faq-list summary { cursor: pointer; color: #edf1f6; font-weight: 750; }
.faq-list summary::marker { color: var(--accent); }
.faq-list p { margin: .8rem 0 .1rem; color: var(--muted); }
.mobile-download-bar { display: none; }
footer { border-top: 1px solid var(--line); max-width: var(--max); margin-inline: auto; padding: 2.5rem 24px 3rem; display: grid; grid-template-columns: auto 1fr; gap: 1.5rem 3rem; align-items: center; color: var(--muted); }
.footer-links { display: flex; gap: 1.4rem; justify-content: flex-end; flex-wrap: wrap; }
.footer-links a { color: #c3cbd6; text-decoration: none; }
footer > p { grid-column: 1 / -1; margin: 0; padding-top: 1rem; border-top: 1px solid var(--line); font-size: .85rem; }
.toast { position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 20px); padding: .75rem 1rem; border-radius: 10px; background: #f4f6f8; color: #10151d; opacity: 0; pointer-events: none; transition: .2s ease; z-index: 50; font-weight: 700; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.legal-main { max-width: 860px; margin: 0 auto; padding: 5rem 24px 7rem; }
.legal-main .eyebrow { margin-bottom: 1rem; }
.legal-main h1 { font-size: clamp(2.7rem, 6vw, 4.8rem); margin-bottom: 1rem; }
.legal-intro { color: var(--muted); font-size: 1.05rem; padding-bottom: 2rem; border-bottom: 1px solid var(--line); }
.legal-section { padding-top: 2.2rem; }
.legal-section h2 { font-size: 1.45rem; }
.legal-section p, .legal-section li { color: #c1c9d4; }
.legal-section a { color: var(--accent-2); }
.legal-callout { padding: 1rem 1.2rem; border-left: 3px solid var(--accent); background: rgba(255,122,24,.07); color: #d8dfe8; }
.price-table { width: 100%; border-collapse: collapse; margin: 1.3rem 0; }
.price-table th, .price-table td { padding: .9rem; border: 1px solid var(--line); text-align: left; }
.price-table th { background: var(--surface-2); }
.price-table td { color: #c8d0da; }

@media (max-width: 900px) {
  nav { display: none; }
  .site-header { gap: .8rem; }
  .share-button { margin-left: auto; }
  .hero { grid-template-columns: 1fr; padding-top: 3rem; }
  .hero-visual { min-height: 630px; }
  .feature-layout { grid-template-columns: 1fr; }
  .scenario-intro { grid-template-columns: 1fr; }
  .scenario-video-card { grid-template-columns: minmax(0, 1fr) 210px; }
  .scenario-grid { grid-template-columns: 1fr; }
  .scenario-grid article { grid-template-columns: minmax(220px, .75fr) minmax(0, 1.25fr); grid-template-rows: 1fr; min-height: 320px; }
  .scenario-grid video { height: 100%; min-height: 320px; border-right: 1px solid var(--line); border-bottom: 0; }
  .scenario-card-copy { align-self: center; }
  .demo-grid { grid-template-columns: 1fr; }
  .demo-card { grid-template-columns: minmax(0, 1fr) minmax(210px, 300px); }
  .feature-grid-visual article { grid-template-columns: minmax(165px, .7fr) minmax(0, 1.3fr); }
  .product-shot { max-height: 560px; }
  .product-shot.feature-crop { height: 560px; }
  .plan-grid { grid-template-columns: 1fr; }
  .open-path-guide { grid-template-columns: 1fr; gap: .35rem; }
  .open-path-guide li:not(:last-child)::after { content: "↓"; right: 1rem; bottom: -.65rem; }
  .plan-card, .plan-card.featured { min-height: auto; transform: none; }
  .install-steps { grid-template-columns: 1fr 1fr; }
  .proof-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  body { padding-bottom: 76px; }
  .site-header { min-height: 66px; padding-inline: 16px; }
  .brand img { width: 42px; height: 42px; }
  .brand small { display: none; }
  .share-button { padding: .58rem .72rem; min-height: 42px; }
  .section-shell { padding-inline: 18px; }
  .hero { min-height: auto; padding-top: 2.3rem; gap: 1rem; }
  h1 { font-size: clamp(2.8rem, 14vw, 4.4rem); }
  .download-card > div:first-child { display: block; }
  .download-card > .primary-button { float: none; width: 100%; margin: 1rem 0 0; }
  .release-meta { grid-template-columns: 1fr 1fr; }
  .hero-visual { min-height: 570px; }
  .phone { width: min(310px, 84vw); }
  .trust-strip { justify-content: flex-start; overflow-x: auto; white-space: nowrap; }
  .scenarios, .demos, .features, .plans, .proof, .install, .faq, .support { padding-top: 5rem; padding-bottom: 5rem; }
  .scenario-intro { gap: 1.2rem; }
  .scenario-video-card { grid-template-columns: 1fr; }
  .scenario-video-card video { width: min(100%, 300px); height: auto; justify-self: center; border-radius: 14px 14px 0 0; grid-row: 1; }
  .scenario-grid article { grid-template-columns: 1fr; grid-template-rows: 360px auto; min-height: auto; }
  .scenario-grid video { height: 360px; min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .demo-card { grid-template-columns: 1fr; min-height: auto; }
  .demo-card video { width: min(100%, 320px); justify-self: center; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-grid article { min-height: 220px; }
  .feature-grid-visual article { grid-template-columns: 1fr; }
  .feature-card-media { min-height: 0; height: min(610px, 150vw); border-right: 0; border-bottom: 1px solid var(--line); }
  .feature-card-media img,
  .feature-card-media video { max-height: none; }
  .feature-card-copy { padding: 1.35rem; }
  .capability-gallery { grid-template-columns: 1fr; }
  .capability-gallery img { height: 400px; }
  .install-steps { grid-template-columns: 1fr; }
  .install-steps li { min-height: auto; }
  .install-steps h3 { margin-top: 1.4rem; }
  .proof-grid { grid-template-columns: 1fr; }
  .support { grid-template-columns: 1fr; gap: 2rem; }
  .qr-card { width: min(100%, 300px); max-width: 100%; justify-self: center; }
  footer { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
  .mobile-download-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; display: flex; align-items: center; justify-content: space-between; gap: .8rem; min-height: 70px; padding: .65rem 16px calc(.65rem + env(safe-area-inset-bottom)); border-top: 1px solid rgba(255,122,24,.38); background: rgba(9,13,20,.94); backdrop-filter: blur(18px); box-shadow: 0 -14px 36px rgba(0,0,0,.36); }
  .mobile-download-bar span { display: grid; min-width: 0; line-height: 1.25; }
  .mobile-download-bar strong { font-size: .92rem; }
  .mobile-download-bar small { color: var(--muted); font-size: .72rem; }
  .mobile-download-bar a { flex: 0 0 auto; padding: .7rem 1rem; border-radius: 10px; background: var(--accent); color: #150b03; text-decoration: none; font-weight: 850; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}