:root {
  --ink: #090908;
  --paper: #fbfaf7;
  --cream: #f3eee6;
  --line: rgba(9, 9, 8, .15);
  --orange: #bd4f0b;
  --amber: #d58a3a;
  --brand-rust: #a03615;
  --lime: #72bf1b;
  --content-max: 1120px;
  --page-gutter: 32px;
  --page: min(calc(100% - (var(--page-gutter) * 2)), var(--content-max));
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: auto; }
body { margin: 0; overflow-x: clip; background: var(--paper); }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
.container { width: var(--page); margin-inline: auto; }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 10px 14px; border-radius: 9px; background: #fff; transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.deferred-section { content-visibility: auto; contain-intrinsic-size: auto 760px; }
.section-kicker { margin-bottom: 16px; color: #756f67; font-size: 12px; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.display-title { margin-bottom: 0; font-size: 48px; line-height: 1.08; letter-spacing: -.055em; text-wrap: balance; }

.site-header {
  position: sticky;
  z-index: 40;
  top: 12px;
  width: min(calc(100% - 32px), 1180px);
  min-height: 76px;
  margin: 12px auto 0;
  padding: 9px 10px 9px 14px;
  display: flex;
  align-items: center;
  gap: 20px;
  border-radius: 22px;
  background: #050505;
  color: #fff;
  box-shadow: 0 12px 34px rgba(0, 0, 0, .2);
}
.brand-lockup { display: inline-flex; align-items: center; gap: 10px; min-width: 190px; color: #fff; }
.brand-mark { flex: 0 0 48px; width: 48px; height: 48px; border-radius: 14px; object-fit: cover; }
.brand-type { display: grid; gap: 1px; line-height: 1; }
.brand-type strong { font-size: 18px; letter-spacing: .05em; }
.brand-type small { color: #bdb7ae; font-size: 10px; letter-spacing: .03em; }
.desktop-navigation { display: flex; flex: 1; align-items: center; justify-content: center; gap: clamp(16px, 2.4vw, 34px); }
.desktop-navigation button, .desktop-navigation a, .text-button { appearance: none; padding: 10px 0; border: 0; background: none; color: inherit; cursor: pointer; font-weight: 800; }
.desktop-navigation button, .desktop-navigation a { font-size: 15px; white-space: nowrap; }
.desktop-navigation button:hover, .desktop-navigation a:hover, .text-button:hover { opacity: .6; }
.header-actions { display: flex; align-items: center; gap: 8px; }
.pill { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 10px 18px; border-radius: 14px; font-size: 14px; font-weight: 900; white-space: nowrap; }
.pill-green { min-width: 112px; background: var(--lime); color: #071000; }
.pill-ghost { min-width: 48px; border: 1px solid rgba(255, 255, 255, .25); }
.menu-toggle, [data-mobile-menu] { display: none; }

.hero { margin-top: -100px; padding: 188px 0 82px; overflow: hidden; background: #f5f0e8; }
.hero-stage { min-height: 580px; display: grid; grid-template-columns: 1.06fr .94fr; align-items: center; gap: 32px; }
.hero-copy-block { position: relative; z-index: 2; max-width: 570px; }
.beta-badge { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 26px; padding: 8px 12px; border: 1px solid #d3ccc2; border-radius: 999px; background: rgba(255, 255, 255, .68); color: #504b45; font-size: 12px; font-weight: 800; }
.beta-badge span { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 5px rgba(114, 191, 27, .13); }
.hero h1 { margin-bottom: 24px; font-size: 54px; line-height: 1.04; letter-spacing: -.058em; font-weight: 950; text-wrap: balance; }
.hero-copy { margin-bottom: 0; color: #514c45; font-size: 18px; font-weight: 700; line-height: 1.7; }
.hero-links { display: flex; align-items: center; gap: 20px; margin-top: 34px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; padding: 13px 20px; border: 0; border-radius: 14px; font-weight: 900; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(0, 0, 0, .15); }
.button-dark { background: #0a0a09; color: #fff; }
.button-light { background: #fff; color: #111; }
.text-button { min-height: 48px; }
.store-link { display: inline-block; margin-top: 18px; line-height: 0; transition: transform .2s ease, filter .2s ease; }
.store-badge { display: block; width: 185px; height: auto; }
.store-link:hover { transform: translateY(-2px); filter: brightness(.96); }
.store-link:focus-visible { outline: 3px solid var(--lime); outline-offset: 3px; border-radius: 8px; }
.hero-media { position: relative; align-self: stretch; display: flex; align-items: center; }
.hero-visual { width: 116%; max-width: none; margin-left: -6%; border-radius: 34px; object-fit: cover; box-shadow: 0 30px 60px rgba(53, 41, 28, .14); }
.hero-status { position: absolute; right: 7%; bottom: 8%; display: grid; grid-template-columns: 12px auto; gap: 2px 9px; min-width: 180px; padding: 14px 16px; border: 1px solid rgba(255, 255, 255, .16); border-radius: 15px; background: rgba(10, 10, 9, .88); color: #fff; backdrop-filter: blur(9px); }
.hero-status .pulse-dot { grid-row: 1 / 3; align-self: center; }
.hero-status strong { font-size: 13px; }
.hero-status small { color: #bcb6ad; font-size: 10px; }

.partner-strip { padding: 34px 0; overflow: hidden; background: #fff; text-align: center; }
.partner-strip > p { margin-bottom: 24px; color: #6d675e; font-size: 13px; font-weight: 700; }
.partner-window { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent); }
.partner-track { width: max-content; display: flex; align-items: center; gap: clamp(54px, 7vw, 104px); animation: partner-marquee 24s linear infinite; }
.partner-logo { width: auto; max-width: 190px; height: 42px; object-fit: contain; }
@keyframes partner-marquee { to { transform: translateX(calc(-50% - 27px)); } }

.installation-section { padding: 100px 0; background: var(--cream); }
.section-intro { display: grid; grid-template-columns: 1fr .82fr; gap: 72px; align-items: end; margin-bottom: 54px; }
.section-intro > p { margin-bottom: 4px; color: #666058; font-size: 18px; line-height: 1.7; }
.section-intro-simple { display: block; max-width: 820px; }
.section-intro-simple > p { color: var(--muted); font-size: 12px; line-height: 1.4; }
.section-intro-simple .display-title { max-width: 760px; }
.install-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.install-card { overflow: hidden; border: 1px solid #d3cbc0; border-radius: 24px; background: #fff; }
.install-card > img { width: 100%; aspect-ratio: 1.22; object-fit: cover; }
.install-image-composite { position: relative; width: 100%; aspect-ratio: 1.22; overflow: hidden; background: #111; }
.install-base-image { display: block; width: 100%; height: 100%; object-fit: cover; }
.crt-screen-content, .pair-phone-screen-content, .pair-host-screen-content { position: absolute; z-index: 2; overflow: hidden; background: #050505; }
.crt-screen-content { top: 21%; left: 18.4%; width: 43%; height: 49%; clip-path: polygon(1% 0, 99% 11%, 100% 100%, 0 97%); }
.pair-phone-screen-content { top: 23%; left: 13%; width: 28%; height: 56%; clip-path: polygon(35% 0, 100% 8%, 80% 100%, 0 96%); }
.pair-host-screen-content { top: 28%; left: 52.5%; width: 33%; height: 37%; clip-path: polygon(0 0, 100% 12%, 95% 100%, 0 90%); }
.crt-screen-content img, .pair-phone-screen-content img, .pair-host-screen-content img { display: block; width: 100%; height: 100%; object-fit: cover; }
.crt-screen-content img { transform: scale(1.12) skewY(6deg) skewX(2deg); transform-origin: center center; }
.pair-phone-screen-content img { object-position: top center; transform: scale(1.2) skewY(8deg) skewX(-11deg); transform-origin: center center; }
.pair-host-screen-content img { transform: scale(1.14) skewY(7.5deg) skewX(.5deg); transform-origin: center center; }
.install-phone-device { display: grid; width: 100%; aspect-ratio: 1.22; overflow: hidden; place-items: center; background: radial-gradient(circle at 50% 32%, #764527 0, #2b1c14 43%, #080808 100%); }
.install-phone-shell { position: relative; display: block; box-sizing: border-box; width: 38%; aspect-ratio: 1 / 2; padding: 7px; border: 1px solid #5f5a55; border-radius: 24px; background: #050505; box-shadow: 0 18px 34px rgba(0,0,0,.48), inset 0 0 0 1px rgba(255,255,255,.08); transform: rotate(1.5deg); }
.install-phone-shell::before { position: absolute; z-index: 2; top: 5px; left: 50%; width: 30%; height: 5px; border-radius: 999px; background: #111; content: ""; transform: translateX(-50%); }
.install-phone-screen { display: block; width: 100%; height: 100%; border-radius: 18px; object-fit: cover; object-position: top center; }
.install-card-copy { padding: 24px 24px 29px; }
.install-card-copy > span { color: var(--orange); font-size: 12px; font-weight: 900; }
.install-card h3 { min-height: 2.4em; margin: 18px 0 8px; font-size: 24px; line-height: 1.2; letter-spacing: -.035em; }
.install-card p { margin-bottom: 0; color: #666058; line-height: 1.65; }
.install-trust { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 28px; border-block: 1px solid #c9c2b9; }
.install-trust > * { padding: 18px 16px; color: #25211d; font-size: 14px; font-weight: 900; text-align: center; }
.install-trust > * + * { border-left: 1px solid #c9c2b9; }
.install-trust a { color: var(--orange); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.setup-action { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 28px; padding: 25px 28px; border-radius: 20px; background: #e4dcd0; }
.setup-action p { margin: 0; font-size: 18px; font-weight: 900; }
.setup-action > div { display: flex; align-items: center; gap: 10px; }
.setup-action .store-link { margin-top: 0; }
.setup-action-simple { margin-top: 18px; }


.scenarios-section { padding: 100px 0; background: #efede8; }
.scenario-layout { display: grid; grid-template-columns: 1.08fr .92fr; gap: 66px; align-items: center; }
.scenario-media { position: relative; overflow: hidden; border-radius: 28px; }
.scenario-media img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.media-label { position: absolute; left: 22px; bottom: 22px; padding: 12px 15px; border-radius: 999px; background: rgba(8, 8, 8, .88); color: #fff; font-size: 13px; font-weight: 900; }
.pulse-dot { display: inline-block; width: 9px; height: 9px; margin-right: 7px; border-radius: 50%; background: #ef5447; box-shadow: 0 0 0 5px rgba(239, 84, 71, .18); }
.scenario-list { margin: 36px 0 0; padding: 0; list-style: none; border-top: 1px solid #c9c2b9; }
.scenario-list li { display: flex; justify-content: space-between; gap: 18px; padding: 19px 0; border-bottom: 1px solid #c9c2b9; }
.scenario-list span { color: #666058; text-align: right; }

.evidence-section { padding: 100px 0; overflow: hidden; background: #111; color: #fff; }
.evidence-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; align-items: center; }
.evidence-section .section-kicker { color: #aaa39a; }
.evidence-steps { margin: 38px 0 28px; padding: 0; list-style: none; }
.evidence-steps li { display: grid; grid-template-columns: 38px 1fr; gap: 16px; padding: 16px 0; border-top: 1px solid rgba(255, 255, 255, .2); }
.evidence-steps span { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--amber); color: #111; font-weight: 950; }
.evidence-steps p { margin: 0; color: #c9c2b9; line-height: 1.55; }
.evidence-steps strong { display: block; color: #fff; font-size: 18px; }
.text-link-light { display: inline-flex; color: #f1c28d; font-weight: 900; }
.app-gallery { position: relative; min-height: 610px; display: flex; align-items: center; justify-content: center; }
.app-gallery img { position: absolute; width: min(42%, 260px); border: 7px solid #292724; border-radius: 29px; box-shadow: 0 28px 50px rgba(0, 0, 0, .38); }
.app-gallery img:nth-child(1) { left: 0; transform: rotate(-7deg) translateY(18px); }
.app-gallery img:nth-child(2) { z-index: 2; }
.app-gallery img:nth-child(3) { right: 0; transform: rotate(7deg) translateY(18px); }

.pricing-section { padding: 100px 0 86px; background: #e9e3d9; }
.pricing-heading { margin-bottom: 52px; }
.pricing-lede { max-width: 600px; margin: 20px 0 0; color: #666058; font-size: 18px; line-height: 1.65; }
.price-toggle { display: inline-flex; margin-top: 28px; padding: 4px; border-radius: 999px; background: #d0c7ba; }
.price-toggle button { padding: 10px 22px; border: 0; border-radius: 999px; background: transparent; cursor: pointer; font-weight: 900; }
.price-toggle button[aria-pressed="true"] { background: #111; color: #fff; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.price-card { display: flex; min-height: 510px; flex-direction: column; padding: 28px; border: 1px solid #cbc2b5; border-radius: 24px; background: #f9f7f2; }
.price-card.is-featured { border-color: #292327; background: #292327; color: #fff; transform: translateY(-14px); }
.recommendation { min-height: 22px; color: #736b61; font-size: 13px; font-weight: 900; }
.is-featured .recommendation { color: #efc681; }
.price-card h3 { margin-bottom: 24px; font-size: 28px; line-height: 1.12; letter-spacing: -.04em; }
.price { display: flex; align-items: baseline; gap: 5px; }
.price b { font-size: 68px; line-height: .86; letter-spacing: -.08em; }
.price-card ul { flex: 1; margin: 30px 0 26px; padding-left: 18px; line-height: 1.9; }
.compliance { width: var(--page); margin: 44px auto 0; color: #666058; text-align: center; font-size: 13px; }

.faq-section { padding: 100px 0; background: #fff; }
.faq-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 78px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item h3 { margin: 0; }
.faq-item button { width: 100%; min-height: 72px; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 20px 0; border: 0; background: none; text-align: left; cursor: pointer; font-size: 19px; font-weight: 900; }
.faq-symbol { flex: 0 0 auto; font-size: 28px; font-weight: 400; transition: transform .2s ease; }
.faq-item button[aria-expanded="true"] .faq-symbol { transform: rotate(45deg); }
.faq-item [data-faq-panel] { color: #666058; line-height: 1.7; }
.faq-item [data-faq-panel] p { margin-bottom: 0; padding: 0 0 22px; }
.has-javascript .faq-item [data-faq-panel] { overflow: hidden; transition: max-height .22s ease; }

.about-section { padding: 100px 0; background: #191816; color: #fff; }
.about-section .section-kicker { color: #aaa39a; }
.about-heading { display: grid; grid-template-columns: 1fr .82fr; gap: 72px; align-items: end; }
.about-lede { margin: 0 0 4px; color: #c9c2b9; font-size: 18px; line-height: 1.7; }
.team-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 54px; }
.team-card { padding: 18px 18px 28px; border: 1px solid rgba(255, 255, 255, .18); border-radius: 22px; background: rgba(255, 255, 255, .05); }
.team-card img { width: 100%; height: 330px; border-radius: 16px; object-fit: cover; }
.team-role { margin: 20px 0 7px; color: #aaa39a; }
.team-card h3 { margin-bottom: 12px; font-size: 28px; }
.team-card p:last-child { margin-bottom: 0; color: #c9c2b9; line-height: 1.65; }

.contact-section { padding: 100px 0; background: var(--brand-rust); color: #fff; }
.contact-layout { display: grid; grid-template-columns: 1fr .74fr; gap: 74px; align-items: end; }
.contact-section .section-kicker { color: #f2c3ae; }
.contact-actions p { margin: 0; font-size: 18px; line-height: 1.7; }
.contact-actions .button { margin-top: 25px; }

.ai-install-page { background: #f5f0e8; }
.ai-install-hero { padding: 170px 0 92px; overflow: hidden; background: linear-gradient(135deg, #f5f0e8 0%, #f5f0e8 62%, #ead8cb 100%); }
.ai-install-hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 60px; align-items: center; }
.ai-install-hero h1 { max-width: 670px; margin-bottom: 24px; font-size: 58px; line-height: 1.03; letter-spacing: -.058em; }
.ai-install-hero-copy { max-width: 620px; margin-bottom: 0; color: #514c45; font-size: 18px; line-height: 1.7; }
.ai-install-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.skill-file-card { position: relative; min-height: 420px; padding: 34px; overflow: hidden; border-radius: 32px; background: #080808; color: #fff; box-shadow: 0 28px 60px rgba(42, 20, 10, .2); }
.skill-file-card::before { position: absolute; width: 250px; height: 250px; right: -72px; bottom: -80px; border-radius: 50%; background: var(--brand-rust); content: ""; filter: blur(4px); }
.skill-file-label { position: relative; display: inline-flex; padding: 8px 11px; border: 1px solid rgba(255,255,255,.28); border-radius: 999px; color: #f2c3ae; font-size: 12px; font-weight: 900; letter-spacing: .09em; }
.skill-file-card h2 { position: relative; margin: 72px 0 18px; font-size: 38px; line-height: 1.06; }
.skill-file-card p { position: relative; max-width: 340px; color: #c9c2b9; line-height: 1.65; }
.skill-file-steps { position: relative; display: flex; gap: 8px; margin-top: 34px; }
.skill-file-steps span { display: grid; width: 40px; height: 40px; place-items: center; border: 1px solid rgba(255,255,255,.24); border-radius: 50%; font-weight: 900; }
.ai-how-section, .ai-boundary-section, .ai-prompt-section { padding: 92px 0; }
.ai-how-section { background: #fff; }
.ai-section-heading { max-width: 720px; margin-bottom: 44px; }
.ai-section-heading h2 { margin-bottom: 18px; font-size: 46px; line-height: 1.06; letter-spacing: -.05em; }
.ai-section-heading p { margin-bottom: 0; color: #666058; font-size: 18px; line-height: 1.7; }
.ai-how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.ai-how-card { min-height: 270px; padding: 28px; border: 1px solid #d3cbc0; border-radius: 24px; background: #f9f7f2; }
.ai-how-card > span { color: var(--brand-rust); font-size: 13px; font-weight: 950; }
.ai-how-card h3 { margin: 42px 0 15px; font-size: 25px; line-height: 1.15; }
.ai-how-card p { margin-bottom: 0; color: #666058; line-height: 1.65; }
.ai-boundary-section { background: #191816; color: #fff; }
.ai-boundary-section .ai-section-heading p { color: #c9c2b9; }
.ai-boundary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.ai-boundary-card { padding: 30px; border: 1px solid rgba(255,255,255,.16); border-radius: 24px; background: rgba(255,255,255,.05); }
.ai-boundary-card h3 { margin-bottom: 22px; font-size: 25px; }
.ai-boundary-card ul { margin: 0; padding-left: 20px; color: #d8d1c8; line-height: 1.9; }
.ai-boundary-card.is-user { border-color: rgba(160,54,21,.75); background: rgba(160,54,21,.2); }
.ai-prompt-section { background: #eee8df; }
.prompt-box { padding: 26px; border: 1px solid #c8beb1; border-radius: 22px; background: #fff; }
.prompt-box code { display: block; color: #2b2621; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 15px; line-height: 1.65; white-space: pre-wrap; }
.prompt-box .button { margin-top: 22px; }
.copy-status { display: inline-block; margin-left: 12px; color: #655e56; font-size: 13px; }

.site-footer { padding: 64px 0 25px; background: #050505; color: #fff; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 44px; }
.footer-lockup { margin-bottom: 24px; }
.footer-grid p, .footer-grid a { color: #c9c2b9; line-height: 1.8; }
.footer-grid h2 { margin-bottom: 15px; font-size: 15px; }
.footer-grid a { display: block; }
.footer-grid .brand-lockup { display: inline-flex; color: #fff; }
.copyright { width: var(--page); margin: 58px auto 0; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .17); color: #817a70; font-size: 12px; }

.has-javascript [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .5s ease, transform .5s ease; }
.has-javascript [data-reveal].is-revealed { opacity: 1; transform: none; }

@media (min-width: 1200px) {
  .hero-stage { min-height: 610px; }
}

@media (max-width: 1199.98px) {
  :root { --content-max: 940px; --page-gutter: 28px; }
  .site-header { width: calc(100% - 24px); gap: 12px; }
  .brand-lockup { min-width: 166px; }
  .brand-type strong { font-size: 16px; }
  .desktop-navigation { gap: 15px; }
  .desktop-navigation button { font-size: 13px; }
  .pill { padding-inline: 14px; }
  .hero h1 { font-size: 48px; }
  .hero-visual { width: 122%; margin-left: -10%; }
  .app-gallery { min-height: 540px; }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .price-card:last-child { grid-column: 1 / -1; min-height: 0; }
}

@media (max-width: 959.98px) {
  :root { --content-max: 720px; --page-gutter: 24px; }
  .site-header { top: 8px; width: calc(100% - 16px); min-height: 64px; margin-top: 8px; border-radius: 18px; }
  .desktop-navigation, .header-actions { display: none; }
  .menu-toggle { display: grid; gap: 6px; width: 44px; min-height: 44px; margin-left: auto; padding: 11px 7px; border: 0; background: none; cursor: pointer; }
  .menu-toggle span { width: 100%; height: 2px; background: #fff; }
  [data-mobile-menu] { position: absolute; z-index: 1; top: 72px; right: 0; left: 0; display: grid; grid-template-columns: 1fr; gap: 4px; padding: 12px; border-radius: 18px; background: #111; box-shadow: 0 18px 34px rgba(0, 0, 0, .3); }
  [data-mobile-menu][hidden] { display: none; }
  [data-mobile-menu] button, [data-mobile-menu] a { width: 100%; min-height: 46px; padding: 12px 14px; border: 0; border-radius: 10px; background: transparent; color: #fff; text-align: left; font-weight: 900; }
  [data-mobile-menu] .mobile-cta { background: var(--lime); color: #071000; }
  .hero { margin-top: -80px; padding: 140px 0 66px; }
  .hero-stage { min-height: 0; grid-template-columns: 1fr; gap: 42px; }
  .hero-copy-block { max-width: 650px; }
  .hero h1 { font-size: 44px; }
  .hero-media { width: min(100%, 660px); justify-self: center; }
  .hero-visual { width: 100%; margin: 0; }
  .hero-status { right: 5%; bottom: 6%; }
  .installation-section, .scenarios-section, .evidence-section, .pricing-section, .faq-section, .about-section, .contact-section { padding-block: 72px; }
  .section-intro, .scenario-layout, .evidence-grid, .faq-layout, .about-heading, .contact-layout { grid-template-columns: 1fr; gap: 34px; }
  .ai-install-hero { padding-top: 136px; }
  .ai-install-hero-grid, .ai-boundary-grid { grid-template-columns: 1fr; gap: 34px; }
  .ai-install-hero h1 { font-size: 48px; }
  .ai-how-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-how-card:last-child { grid-column: 1 / -1; }
  .install-grid { grid-template-columns: repeat(2, 1fr); }
  .install-grid article:last-child { grid-column: 1 / -1; }
  .setup-action { align-items: flex-start; flex-direction: column; }
  .scenario-copy { order: 1; }
  .scenario-media { order: 2; }
  .app-gallery { min-height: 620px; }
  .app-gallery img { width: min(40%, 270px); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .team-card img { height: 280px; }
}

@media (min-width: 640px) and (max-width: 959.98px) and (max-height: 500px) {
  .hero { padding: 112px 0 38px; }
  .hero-stage { min-height: 390px; grid-template-columns: 1.08fr .92fr; gap: 26px; }
  .hero-copy-block { max-width: none; }
  .beta-badge { margin-bottom: 14px; padding: 6px 10px; }
  .hero h1 { margin-bottom: 14px; font-size: 34px; line-height: 1.04; }
  .hero-copy { font-size: 14px; line-height: 1.5; }
  .hero-links { gap: 12px; margin-top: 18px; }
  .hero-links .button, .hero-links .text-button { min-height: 46px; padding-block: 10px; }
  .store-link { margin-top: 10px; }
  .hero-media { width: 100%; height: 300px; }
  .hero-visual { height: 100%; object-fit: cover; }
  .hero-status { right: 8px; bottom: 8px; min-width: 154px; padding: 10px 12px; }
}

@media (max-width: 639.98px) {
  :root { --content-max: 560px; --page-gutter: 24px; }
  .brand-lockup { min-width: 0; }
  .brand-mark { width: 44px; height: 44px; border-radius: 12px; }
  .brand-type small { display: none; }
  .hero { padding-top: 128px; padding-bottom: 48px; }
  .hero h1 { font-size: 36px; line-height: 1.06; }
  .ai-install-hero { padding: 118px 0 54px; }
  .ai-install-hero h1 { font-size: 38px; }
  .ai-install-hero-copy { font-size: 16px; }
  .ai-install-actions { align-items: stretch; flex-direction: column; }
  .ai-install-actions .button { width: 100%; }
  .skill-file-card { min-height: 350px; padding: 26px; border-radius: 24px; }
  .skill-file-card h2 { margin-top: 54px; font-size: 31px; }
  .ai-how-section, .ai-boundary-section, .ai-prompt-section { padding: 54px 0; }
  .ai-section-heading { margin-bottom: 30px; }
  .ai-section-heading h2 { font-size: 34px; }
  .ai-section-heading p { font-size: 16px; }
  .ai-how-grid { grid-template-columns: 1fr; }
  .ai-how-card:last-child { grid-column: auto; }
  .ai-how-card { min-height: 0; }
  .prompt-box { padding: 21px; }
  .copy-status { display: block; margin: 10px 0 0; }
  .display-title { font-size: 32px; line-height: 1.12; }
  .hero-copy { font-size: 16px; }
  .hero-links { align-items: stretch; flex-direction: column; gap: 8px; margin-top: 26px; }
  .hero-links .button, .hero-links .text-button { width: 100%; }
  .store-link { margin-top: 14px; }
  .hero-media { width: 100%; }
  .hero-visual { border-radius: 22px; }
  .hero-status { right: 12px; bottom: 12px; min-width: 160px; padding: 11px 12px; }
  .partner-strip { padding-block: 28px; }
  .partner-track { gap: 44px; animation-duration: 20s; }
  .partner-logo { max-width: 138px; height: 32px; }
  .installation-section, .scenarios-section, .evidence-section, .pricing-section, .faq-section, .about-section, .contact-section { padding-block: 52px; }
  .section-intro { margin-bottom: 34px; }
  .section-intro > p, .about-lede, .contact-actions p { font-size: 16px; }
  .install-grid, .pricing-grid, .team-grid, .footer-grid { grid-template-columns: 1fr; }
  .install-grid article:last-child, .price-card:last-child { grid-column: auto; }
  .install-card > img, .install-phone-device { aspect-ratio: 1.35; }
  .install-phone-device .install-phone-shell { width: 34%; }
  .install-image-composite { aspect-ratio: 1.22; }
  .install-card h3 { min-height: 0; }
  .install-trust { grid-template-columns: 1fr; }
  .install-trust > * + * { border-top: 1px solid #c9c2b9; border-left: 0; }
  .setup-action { padding: 22px; }
  .setup-action .button { width: 100%; }
  .scenario-media { border-radius: 20px; }
  .scenario-media img { aspect-ratio: 16 / 9; }
  .media-label { right: 12px; left: 12px; bottom: 12px; padding: 9px 11px; border-radius: 12px; font-size: 11px; }
  .scenario-list li { align-items: flex-start; flex-direction: column; gap: 5px; }
  .scenario-list span { text-align: left; }
  .evidence-grid { gap: 44px; }
  .app-gallery { min-height: 470px; }
  .app-gallery img { width: 43%; border-width: 4px; border-radius: 20px; }
  .app-gallery img:nth-child(1) { left: -4%; }
  .app-gallery img:nth-child(3) { right: -4%; }
  .price-card, .price-card.is-featured { min-height: 0; transform: none; }
  .faq-layout { gap: 36px; }
  .faq-item button { font-size: 17px; }
  .team-grid { gap: 14px; margin-top: 36px; }
  .team-card img { height: 240px; }
  .contact-actions .button { width: 100%; }
  .footer-grid { gap: 34px; }
  .copyright { margin-top: 42px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}