/* Fonts live in /home/assets/echo-brand.css; colours map onto the ECHO family tokens (echo-tokens.css). */
:root {
  color-scheme: dark;
  --bg: var(--echo-ground);
  --panel: var(--echo-surface);
  --panel-strong: var(--echo-surface-raised);
  --line: var(--echo-line);
  --line-strong: var(--echo-line-strong);
  --text: var(--echo-ink);
  --muted: var(--echo-ink-muted);
  --dim: var(--echo-ink-faint);
  --blue: var(--echo-ink-muted);
  --violet: var(--echo-ink-muted);
  --cyan: var(--echo-core);
  --green: var(--echo-core);
  --amber: var(--echo-warning);
  --content: 1240px;
  --gutter: clamp(22px, 4vw, 64px);
  font-family: var(--echo-font-sans);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body { margin: 0; min-width: 320px; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }

.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 50%;
  width: min(calc(100% - (var(--gutter) * 2)), var(--content));
  height: 76px;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  pointer-events: none;
  transition: height .25s ease;
}
.site-header::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0 calc(var(--gutter) * -1);
  background: linear-gradient(180deg, rgba(9, 10, 12, .9), rgba(9, 10, 12, .3) 72%, transparent);
  opacity: .85;
  pointer-events: none;
}
.site-header.is-scrolled { height: 64px; }
.site-header.is-scrolled::before { backdrop-filter: blur(14px); border-bottom: 1px solid rgba(238, 241, 244, .08); }
.site-header > * { pointer-events: auto; }
.brand, .footer-brand { display: flex; align-items: center; width: max-content; }
.brand img { display: block; width: 154px; height: auto; filter: none; transition: filter .25s ease, transform .25s ease; }
.brand:hover img { transform: translateY(-1px); filter: none; }
.main-nav { display: flex; align-items: center; gap: clamp(22px, 3vw, 44px); }
.main-nav a { position: relative; padding: 9px 0; color: var(--echo-ink-muted); font-size: 10px; line-height: 1; letter-spacing: .13em; white-space: nowrap; text-transform: uppercase; transition: color .25s ease, text-shadow .25s ease; }
.main-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 2px; height: 1px; background: linear-gradient(90deg, var(--blue), var(--violet)); transition: right .25s ease; }
.main-nav a:hover, .main-nav a.active { color: var(--echo-ink); text-shadow: none; }
.main-nav a:hover::after, .main-nav a.active::after { right: 0; }
.header-actions { justify-self: end; display: flex; align-items: center; gap: 15px; }
.locale-switch { display: flex; align-items: center; gap: 3px; color: var(--echo-ink-faint); font-size: 9px; }
.locale-switch button { border: 0; padding: 6px 4px; color: var(--echo-ink-muted); background: transparent; font-size: 9px; cursor: pointer; }
.locale-switch button.active { color: var(--echo-ink); }
.locale-switch button:focus-visible, a:focus-visible, button:focus-visible { outline: 1px solid var(--cyan); outline-offset: 3px; }
.enter-link { min-width: 132px; height: 34px; padding: 0 14px 0 18px; display: flex; align-items: center; justify-content: space-between; border: 1px solid rgba(238, 241, 244, .24); border-radius: var(--echo-radius-sm); background: rgba(9, 10, 12, .55); backdrop-filter: blur(12px); font-size: 9px; letter-spacing: .12em; text-transform: uppercase; transition: border-color .25s ease, background .25s ease; }
.enter-link:hover { border-color: rgba(238, 241, 244, .46); background: rgba(9, 10, 12, .8); }
.enter-link i { width: 5px; height: 5px; border-radius: 50%; background: var(--echo-ink); box-shadow: none; }

main { position: relative; overflow: hidden; isolation: isolate; background: var(--echo-ground); }
.cosmos-field { position: absolute; z-index: 0; inset: 0 auto auto 0; width: 100%; pointer-events: none; }
.motion-layer { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero, .site-section { position: relative; z-index: 1; scroll-margin-top: 96px; border-bottom: 1px solid var(--line); }
.site-section { background: linear-gradient(180deg, rgba(9, 10, 12, .18), rgba(9, 10, 12, .5)); }
.section-grid { width: min(calc(100% - (var(--gutter) * 2)), var(--content)); height: 100%; margin: 0 auto; }

.hero {
  min-height: 800px;
  height: 100svh;
  max-height: 1040px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 49%, rgba(107, 122, 141, .115), transparent 31%),
    linear-gradient(180deg, rgba(0, 0, 0, .2), transparent 24%, transparent 72%, rgba(0, 0, 0, .56));
}
.hero::before { content: ""; position: absolute; z-index: 0; inset: 0; opacity: .24; background-image: linear-gradient(rgba(238, 241, 244, .04) 1px, transparent 1px), linear-gradient(90deg, rgba(238, 241, 244, .035) 1px, transparent 1px); background-size: 72px 72px; mask-image: radial-gradient(circle at 50% 50%, #000, transparent 74%); pointer-events: none; }
.hero::after { content: ""; position: absolute; z-index: 2; inset: 0; background: linear-gradient(90deg, var(--echo-ground) 0, transparent 10%, transparent 90%, var(--echo-ground) 100%), linear-gradient(180deg, rgba(9, 10, 12, .15), transparent 68%, rgba(9, 10, 12, .62)); pointer-events: none; }
.hero-motion { z-index: 2; }
.hero-rings { position: absolute; z-index: 1; left: 50%; top: 49%; width: min(69vw, 860px); aspect-ratio: 1; transform: translate(-50%, -50%); border-radius: 50%; opacity: .88; background: radial-gradient(circle, rgba(238, 241, 244, .025) 0 19%, transparent 35%, rgba(238, 241, 244, .055) 48%, rgba(238, 241, 244, .035) 59%, transparent 73%); filter: blur(3px); animation: hero-drift 18s ease-in-out infinite alternate, hero-breathe 12s ease-in-out infinite; }
.hero-rings::before { content: ""; position: absolute; inset: 18%; border-radius: 50%; box-shadow: none; }
.hero-rings i, .hero-rings b { display: none; }
.hero-copy { position: relative; z-index: 3; width: min(980px, calc(100vw - 40px)); margin-top: 26px; text-align: center; animation: hero-copy-in .9s cubic-bezier(.22,.75,.24,1) both; }
.hero-eyebrow { margin: 0 0 21px; display: inline-flex; align-items: center; gap: 11px; color: var(--echo-ink-muted); font-size: 9px; letter-spacing: .31em; }
.hero-eyebrow i { width: 5px; height: 5px; border-radius: 50%; background: var(--echo-ink); box-shadow: none; animation: signal-blink 3.2s ease-in-out infinite; }
.hero h1 { margin: 0; display: flex; flex-direction: column; align-items: center; font-size: clamp(54px, 7.1vw, 98px); font-weight: 170; line-height: .92; letter-spacing: .115em; text-indent: .115em; text-shadow: none; }
.hero h1 span, .hero h1 strong { display: block; white-space: nowrap; }
.hero h1 span { color: var(--echo-ink); font-weight: 175; }
.hero h1 strong { margin-top: 12px; color: var(--echo-ink); font-size: .59em; font-weight: 260; letter-spacing: .31em; text-indent: .31em; text-shadow: none; }
.hero-subtitle { margin-top: 24px; display: flex; align-items: center; justify-content: center; gap: 16px; }
.hero-subtitle span { width: 96px; height: 1px; background: linear-gradient(90deg, transparent, rgba(238, 241, 244, .48)); }
.hero-subtitle span:last-child { transform: scaleX(-1); }
.hero-subtitle strong { color: var(--echo-ink); font-size: clamp(13px, 1.2vw, 16px); font-weight: 390; letter-spacing: .2em; text-indent: .2em; }
.lead { margin: 21px 0 0; display: flex; flex-direction: column; gap: 6px; color: var(--echo-ink); font-size: 11px; line-height: 1.62; }
.lead span { letter-spacing: .055em; }
.lead small { color: var(--echo-ink-muted); font-size: 11px; }
.hero-actions { margin-top: 27px; display: flex; justify-content: center; align-items: center; gap: 12px; }
.primary-cta { min-width: 155px; height: 42px; padding: 0 16px 0 21px; display: flex; align-items: center; justify-content: space-between; border: 1px solid rgba(238, 241, 244, .36); border-radius: var(--echo-radius-sm); background: linear-gradient(120deg, rgba(79, 90, 104, .32), rgba(61, 70, 81, .28)); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.primary-cta:hover { transform: translateY(-2px); border-color: rgba(238, 241, 244, .62); box-shadow: 0 13px 40px rgba(118, 133, 152, .18); }
.primary-cta b { color: var(--echo-ink); font-size: 13px; font-weight: 400; }
.hero-text-link { min-width: 126px; height: 42px; padding: 0 15px; display: flex; align-items: center; justify-content: space-between; border: 1px solid rgba(238, 241, 244, .17); border-radius: var(--echo-radius-sm); color: var(--echo-ink-muted); background: rgba(9, 10, 12, .38); font-size: 9px; letter-spacing: .11em; text-transform: uppercase; transition: color .25s ease, border-color .25s ease, background .25s ease; }
.hero-text-link:hover { color: var(--echo-ink); border-color: rgba(238, 241, 244, .38); background: rgba(31, 35, 41, .46); }
.hero-text-link b { color: var(--echo-ink-muted); font-size: 11px; font-weight: 400; }
.play-button { position: relative; width: 42px; height: 42px; margin: 0; padding: 0; display: grid; place-items: center; border: 1px solid rgba(238, 241, 244, .42); border-radius: 50%; background: rgba(9, 10, 12, .52); color: var(--echo-ink); cursor: pointer; transition: transform .25s ease, box-shadow .25s ease; }
.play-button::after { content: ""; position: absolute; inset: -1px; border: 1px solid rgba(238, 241, 244, .28); border-radius: 50%; animation: play-ripple 4.8s ease-out infinite; }
.play-button:hover { transform: scale(1.06); box-shadow: none; }
.play-button span { width: 9px; height: 11px; background: linear-gradient(90deg, currentColor 0 3px, transparent 3px 6px, currentColor 6px 9px); }
body.motion-paused .play-button span { width: 0; height: 0; margin-left: 3px; border-top: 5px solid transparent; border-bottom: 5px solid transparent; border-left: 8px solid currentColor; background: none; }
body.motion-paused .play-button::after { animation-play-state: paused; opacity: 0; }
body.motion-paused main *, body.motion-paused main *::before, body.motion-paused main *::after { animation-play-state: paused !important; }
.scroll-cue { position: absolute; z-index: 4; left: 50%; bottom: 24px; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 9px; color: var(--echo-ink-muted); font-size: 8px; letter-spacing: .18em; text-transform: uppercase; }
.scroll-cue i { width: 1px; height: 22px; transform-origin: top; background: linear-gradient(var(--echo-ink-muted), var(--echo-ink-muted), transparent); box-shadow: none; animation: scroll-beam 2.8s ease-in-out infinite; }
.hero-telemetry { position: absolute; z-index: 3; inset: 118px max(var(--gutter), calc((100vw - var(--content)) / 2)) 94px; color: rgba(238, 241, 244, .48); font-family: "SFMono-Regular", Consolas, monospace; font-size: 7px; letter-spacing: .14em; pointer-events: none; }
.hero-telemetry span { position: absolute; display: flex; align-items: center; gap: 9px; }
.hero-telemetry span::before { content: ""; width: 22px; height: 1px; background: linear-gradient(90deg, transparent, rgba(238, 241, 244, .5)); }
.telemetry-era { left: 0; top: 9%; }.telemetry-memory { right: 0; top: 9%; flex-direction: row-reverse; }.telemetry-memory::before, .telemetry-location::before { transform: scaleX(-1); }
.telemetry-signal { left: 0; bottom: 11%; }.telemetry-location { right: 0; bottom: 11%; flex-direction: row-reverse; }

.section-copy .kicker { margin: 0 0 16px; color: var(--echo-ink-muted); font-size: 10px; letter-spacing: .2em; }
.section-copy h2 { margin: 0; font-size: clamp(32px, 3.3vw, 48px); font-weight: 280; line-height: 1.1; letter-spacing: -.035em; }
.localized-line { margin: 17px 0 0; color: var(--echo-ink); font-size: clamp(13px, 1.15vw, 16px); line-height: 1.55; }
.section-body { max-width: 540px; margin: 14px 0 0; color: var(--echo-ink-muted); font-size: 13px; line-height: 1.75; }
.outline-link { min-height: 40px; margin-top: 26px; padding: 0 17px; display: inline-flex; align-items: center; gap: 13px; border: 1px solid rgba(238, 241, 244, .3); border-radius: var(--echo-radius-sm); color: var(--echo-ink); font-size: 10px; letter-spacing: .11em; text-transform: uppercase; transition: border-color .25s ease, background .25s ease; }
.outline-link:hover { border-color: rgba(238, 241, 244, .55); background: rgba(55, 63, 73, .2); }
.outline-link b { color: var(--echo-ink-muted); font-size: 12px; font-weight: 400; }
.section-heading { display: grid; grid-template-columns: 1fr minmax(320px, .9fr); gap: 64px; align-items: end; }
.heading-detail { padding-bottom: 3px; }
.heading-detail .localized-line { margin-top: 0; }
.compact-heading { margin-bottom: 46px; }

.ecosystem-section { min-height: 720px; }
.ecosystem-layout { display: grid; grid-template-columns: 37% 63%; align-items: center; gap: 30px; padding: 82px 0; }
.ecosystem-copy { position: relative; z-index: 3; }
.ecosystem-copy h2 span { color: var(--echo-ink-muted); font-size: .82em; font-weight: 245; }
.ecosystem-chain { margin-top: 30px; display: flex; align-items: center; gap: 9px; color: var(--echo-ink-muted); font-size: 9px; letter-spacing: .11em; text-transform: uppercase; white-space: nowrap; }
.ecosystem-chain i { width: 17px; height: 1px; background: linear-gradient(90deg, rgba(238, 241, 244, .24), rgba(238, 241, 244, .65)); }
.era-signals { margin-top: 30px; display: grid; grid-template-columns: .72fr 1.1fr 1.45fr; gap: 7px; }
.era-signals span { min-height: 62px; padding: 11px 10px; display: flex; flex-direction: column; justify-content: center; border-left: 1px solid rgba(238, 241, 244, .3); background: linear-gradient(90deg, rgba(33, 38, 44, .35), transparent); }
.era-signals b { color: var(--echo-ink); font-size: 8px; font-weight: 520; letter-spacing: .09em; white-space: nowrap; }
.era-signals small { margin-top: 7px; color: var(--echo-ink-muted); font-size: 8px; line-height: 1.4; }
.ecosystem-map { position: relative; height: 550px; overflow: hidden; border: 1px solid rgba(238, 241, 244, .1); border-radius: 28px; background: radial-gradient(circle at 50% 46%, rgba(116, 131, 150, .15), transparent 25%), linear-gradient(145deg, rgba(9, 10, 12, .48), rgba(9, 10, 12, .26)); }
.epoch-map { background: radial-gradient(circle at 50% 46%, rgba(125, 139, 157, .17), transparent 25%), linear-gradient(145deg, rgba(9, 10, 12, .56), rgba(9, 10, 12, .3)); }
.epoch-map::before { content: ""; position: absolute; z-index: 0; inset: 0; opacity: .34; background-image: linear-gradient(rgba(238, 241, 244, .055) 1px, transparent 1px), linear-gradient(90deg, rgba(238, 241, 244, .045) 1px, transparent 1px); background-size: 42px 42px; mask-image: radial-gradient(circle at 50% 46%, #000 0 38%, transparent 80%); }
.epoch-map::after { content: "ECHO CIVILIZATION SIGNAL MAP // LIVE"; position: absolute; z-index: 5; left: 20px; top: 17px; color: rgba(138, 150, 166, .54); font-family: "SFMono-Regular", Consolas, monospace; font-size: 7px; letter-spacing: .14em; }
.memory-motion { z-index: 0; opacity: .52; }
.ecosystem-orbit { position: absolute; z-index: 1; left: 50%; top: 46%; transform: translate(-50%, -50%); border: 1px solid rgba(238, 241, 244, .17); border-radius: 50%; }
.ecosystem-orbit.orbit-a { width: 68%; height: 57%; transform: translate(-50%, -50%) rotate(-8deg); }
.ecosystem-orbit.orbit-b { width: 84%; height: 75%; transform: translate(-50%, -50%) rotate(13deg); border-style: dashed; border-color: rgba(238, 241, 244, .13); }
.ecosystem-core { position: absolute; z-index: 4; left: 50%; top: 46%; width: 116px; aspect-ratio: 1; transform: translate(-50%, -50%); display: grid; place-items: center; border: 1px solid rgba(238, 241, 244, .42); border-radius: 50%; background: radial-gradient(circle at 38% 30%, rgba(238, 241, 244, .95) 0 2%, var(--echo-ink-muted) 4%, #20252b 18%, var(--echo-surface) 58%, rgba(9, 10, 12, .75)); box-shadow: none; }
.ecosystem-core::before, .ecosystem-core::after { content: ""; position: absolute; inset: -16%; border: 1px solid rgba(238, 241, 244, .16); border-radius: 50%; animation: slow-spin 34s linear infinite; }
.ecosystem-core::after { inset: -33%; border-style: dashed; border-color: rgba(238, 241, 244, .13); animation-direction: reverse; animation-duration: 48s; }
.ecosystem-core strong { color: var(--echo-ink); line-height: 0; }
.ecosystem-core span { position: absolute; bottom: 23px; color: var(--echo-ink-muted); font-size: 8px; letter-spacing: .2em; }
/* The ECHO mark (inline SVG) sits in each illustrated core; containers only size it. */
.epoch-core strong { position: relative; width: 48px; }
.epoch-core strong .echo-mark, .station-mark .echo-mark, .capability-core strong .echo-mark, .universe-sun span .echo-mark, .mini-vortex i .echo-mark { width: 100%; height: auto; }
.epoch-core span { bottom: 17px; font-size: 6px; letter-spacing: .16em; }
.ecosystem-node { position: absolute; z-index: 3; width: 142px; min-height: 68px; padding: 12px 13px; display: flex; flex-direction: column; justify-content: center; border: 1px solid rgba(238, 241, 244, .17); border-radius: 11px; background: rgba(9, 10, 12, .76); box-shadow: 0 16px 38px rgba(0, 0, 0, .2); }
.ecosystem-node b { color: var(--echo-ink-muted); font-size: 8px; font-weight: 500; letter-spacing: .14em; }
.ecosystem-node strong { margin-top: 5px; color: var(--echo-ink); font-size: 10px; font-weight: 500; letter-spacing: .06em; }
.ecosystem-node small { margin-top: 4px; color: var(--echo-ink-muted); font-size: 10px; }
.node-memory { left: 8%; top: 11%; }.node-agents { right: 8%; top: 12%; }.node-cloud { left: 3%; top: 42%; }.node-devices { right: 3%; top: 42%; }.node-world { left: 11%; bottom: 10%; }.node-home { right: 11%; bottom: 10%; }
.identity-anchor { position: absolute; z-index: 4; left: 50%; bottom: 6%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 4px; color: var(--echo-ink-muted); font-size: 9px; letter-spacing: .14em; text-align: center; }
.identity-anchor small { color: var(--echo-ink-muted); font-size: 9px; letter-spacing: .04em; }

.products-section { min-height: 1110px; }
.products-layout { padding: 100px 0 112px; }
.product-deck { position: relative; margin-top: 54px; display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); grid-template-rows: repeat(2, minmax(238px, auto)) minmax(228px, auto) 56px; gap: 14px; }
.product-deck::before { content: ""; position: absolute; z-index: -1; inset: -22px; opacity: .42; background-image: linear-gradient(rgba(238, 241, 244, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(238, 241, 244, .04) 1px, transparent 1px); background-size: 36px 36px; mask-image: radial-gradient(ellipse at center, #000 20%, transparent 78%); }
.system-card { position: relative; isolation: isolate; overflow: hidden; min-height: 228px; padding: 20px 22px; border: 1px solid rgba(238, 241, 244, .16); border-radius: 18px; background: linear-gradient(150deg, rgba(9, 10, 12, .86), rgba(9, 10, 12, .94)); transition: transform .28s ease, border-color .28s ease, background .28s ease; }
.system-card::before { content: ""; position: absolute; z-index: -1; inset: 0; background: radial-gradient(260px circle at 78% 24%, rgba(238, 241, 244, .05), transparent 68%); pointer-events: none; }
.system-card::after { content: ""; position: absolute; z-index: 3; left: 22px; right: 22px; top: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(238, 241, 244, .48), transparent); opacity: .58; }
.system-card:hover { transform: translateY(-3px); border-color: rgba(238, 241, 244, .34); background: linear-gradient(150deg, rgba(9, 10, 12, .9), rgba(9, 10, 12, .96)); }
.product-station { grid-column: 1 / 9; grid-row: 1 / 3; min-height: 490px; background: radial-gradient(circle at 72% 46%, rgba(98, 112, 130, .2), transparent 32%), linear-gradient(145deg, rgba(9, 10, 12, .92), rgba(9, 10, 12, .98)); }
.product-os { grid-column: 9 / 13; grid-row: 1; }.product-memory { grid-column: 9 / 13; grid-row: 2; }
.product-home { grid-column: 1 / 5; grid-row: 3; }.product-studio { grid-column: 5 / 9; grid-row: 3; }.product-universe { grid-column: 9 / 13; grid-row: 3; }
.product-os::before, .product-memory::before, .product-home::before, .product-studio::before, .product-universe::before { background: radial-gradient(240px circle at 80% 20%, rgba(238, 241, 244, .05), transparent 68%); }
.product-top { position: relative; z-index: 4; display: flex; align-items: center; justify-content: space-between; }
.product-index { color: var(--echo-ink-faint); font-size: 9px; letter-spacing: .14em; }
.status { width: max-content; min-height: 24px; padding: 0 9px; display: inline-flex; align-items: center; border: 1px solid rgba(238, 241, 244, .21); border-radius: var(--echo-radius-xs); color: var(--echo-ink-muted); background: rgba(9, 10, 12, .62); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; }
.status-beta { color: var(--echo-ink-muted); border-color: rgba(238, 241, 244, .28); background: rgba(61, 69, 80, .11); }
.status-private { color: var(--echo-ink); border-color: rgba(238, 241, 244, .3); background: rgba(79, 90, 104, .11); }
.status-concept { color: var(--echo-ink-muted); border-color: var(--echo-line-strong); background: transparent; }
.product-copy h3 { margin: 0; color: var(--echo-ink); font-size: 16px; font-weight: 500; letter-spacing: .065em; }
.product-role { margin: 7px 0 11px !important; color: var(--echo-ink-muted) !important; font-size: 9px !important; letter-spacing: .12em; text-transform: uppercase; }
.product-copy > p:last-child { max-width: 470px; margin: 0; color: var(--echo-ink-muted); font-size: 11px; line-height: 1.68; }
.system-card:not(.product-station) .product-copy { position: absolute; z-index: 2; left: 22px; right: 22px; bottom: 19px; }
.product-signal { margin: 0 0 16px; color: var(--echo-ink-muted); font-family: "SFMono-Regular", Consolas, monospace; font-size: 7px; letter-spacing: .16em; }
.station-layout { min-height: 414px; display: grid; grid-template-columns: .88fr 1.12fr; align-items: center; gap: 10px; }
.station-layout .product-copy { position: relative; z-index: 4; padding: 32px 0 12px; }
.station-layout .product-copy h3 { font-size: clamp(25px, 2.4vw, 34px); letter-spacing: .055em; }
.station-layout .product-role { margin-top: 10px !important; color: var(--echo-ink-muted) !important; }
.station-layout .product-copy > p:last-of-type { max-width: 290px; color: var(--echo-ink-muted); font-size: 12px; }
.product-route { margin-top: 24px; display: flex; align-items: center; gap: 7px; color: var(--echo-ink-muted); font-family: "SFMono-Regular", Consolas, monospace; font-size: 7px; letter-spacing: .09em; }
.product-route i { width: 18px; height: 1px; background: linear-gradient(90deg, rgba(128, 142, 160, .25), var(--echo-ink-muted)); }
.station-visual { position: relative; min-height: 360px; }
.station-visual::before, .station-visual::after { content: ""; position: absolute; z-index: 1; left: -8%; right: -5%; top: 46%; height: 1px; transform: rotate(-7deg); background: linear-gradient(90deg, transparent, rgba(238, 241, 244, .16) 18%, rgba(238, 241, 244, .58) 58%, transparent 91%); box-shadow: none; }
.station-visual::after { top: 59%; transform: rotate(5deg); opacity: .55; }
.station-halo { position: absolute; left: 50%; top: 47%; width: 92%; height: 58%; transform: translate(-50%, -50%) rotate(-8deg); border: 1px solid rgba(238, 241, 244, .17); border-radius: 50%; box-shadow: none; }
.station-halo::after { content: ""; position: absolute; inset: 12%; border: 1px dashed rgba(238, 241, 244, .13); border-radius: inherit; }
.station-device { position: absolute; z-index: 2; left: 50%; top: 45%; width: min(88%, 275px); height: 168px; transform: translate(-50%, -50%) perspective(700px) rotateX(12deg) rotateZ(-7deg); border: 1px solid rgba(238, 241, 244, .25); border-radius: 24px; background: linear-gradient(145deg, #161a1e, var(--echo-ground) 58%, var(--echo-surface)); box-shadow: -18px 24px 44px rgba(0, 0, 0, .5), inset 0 1px rgba(238, 241, 244, .06); }
.station-device::before { content: ""; position: absolute; inset: 11px; border: 1px solid rgba(238, 241, 244, .12); border-radius: 16px; background-image: radial-gradient(circle, rgba(238, 241, 244, .2) 0 1px, transparent 1.3px); background-size: 9px 9px; mask-image: linear-gradient(90deg, transparent, #000 20% 80%, transparent); }
.station-device::after { content: ""; position: absolute; left: 9%; right: 9%; bottom: -22px; height: 30px; border-radius: 50%; background: rgba(130, 143, 160, .2); filter: blur(18px); }
.station-mark { position: absolute; z-index: 2; left: 50%; top: 43%; width: 66px; transform: translate(-50%, -50%); color: var(--echo-ink); line-height: 0; }
.station-device small { position: absolute; left: 50%; bottom: 29px; transform: translateX(-50%); color: var(--echo-ink-muted); font-family: "SFMono-Regular", Consolas, monospace; font-size: 6px; letter-spacing: .2em; }
.station-device > i { position: absolute; z-index: 3; bottom: 12px; width: 3px; height: 3px; border-radius: 50%; background: var(--echo-ink-muted); box-shadow: none; animation: station-status 4.6s ease-in-out infinite; }
.station-device > i:nth-of-type(1) { right: 28px; }.station-device > i:nth-of-type(2) { right: 38px; animation-delay: -1.4s; }.station-device > i:nth-of-type(3) { right: 48px; animation-delay: -2.8s; }
.station-telemetry { position: absolute; left: 5%; right: 5%; bottom: 16px; display: flex; align-items: center; justify-content: space-between; color: var(--echo-ink-faint); font-family: "SFMono-Regular", Consolas, monospace; font-size: 6px; letter-spacing: .11em; }
.product-graphic { position: absolute; z-index: 1; left: 22px; right: 22px; top: 65px; height: 56px; display: flex; align-items: center; color: var(--echo-ink-muted); font-family: "SFMono-Regular", Consolas, monospace; font-size: 7px; letter-spacing: .1em; }
.os-graphic span, .home-graphic span, .studio-graphic span { min-width: 48px; min-height: 28px; display: grid; place-items: center; border: 1px solid rgba(238, 241, 244, .2); border-radius: var(--echo-radius-sm); background: rgba(9, 10, 12, .8); }
.os-graphic i, .home-graphic i, .studio-graphic i { flex: 1; height: 1px; background: linear-gradient(90deg, rgba(109, 125, 145, .25), rgba(238, 241, 244, .7)); }
.os-graphic span:nth-of-type(2) { border-color: rgba(238, 241, 244, .28); color: var(--echo-ink-muted); }.os-graphic span:nth-of-type(3) { color: var(--echo-ink-muted); }
.memory-graphic::before { content: ""; position: absolute; left: 0; right: 0; top: 27px; height: 1px; background: linear-gradient(90deg, transparent, var(--echo-ink-muted) 12% 88%, transparent); }
.memory-graphic i { position: absolute; top: 23px; width: 8px; height: 8px; border: 1px solid var(--echo-ink-muted); border-radius: 50%; background: var(--echo-surface-raised); box-shadow: none; }
.memory-graphic i:nth-of-type(1) { left: 12%; }.memory-graphic i:nth-of-type(2) { left: 49%; border-color: var(--echo-ink-muted); }.memory-graphic i:nth-of-type(3) { right: 10%; background: var(--echo-ink); }
.memory-graphic b { position: absolute; bottom: 0; color: var(--echo-ink-faint); font-size: 6px; font-weight: 500; }.memory-graphic b:first-of-type { left: 12%; transform: translateX(-50%); }.memory-graphic b:last-of-type { right: 10%; transform: translateX(50%); color: var(--echo-ink-muted); }
.home-graphic span { min-width: 50px; }.home-graphic b { margin-left: 6px; color: var(--echo-ink-muted); font-size: 13px; font-weight: 300; }
.studio-graphic span { min-width: 52px; }.studio-graphic span:nth-of-type(2) { color: var(--echo-ink-muted); }.studio-graphic span:nth-of-type(3) { color: var(--echo-ink-muted); }
.universe-graphic { overflow: hidden; }
.universe-graphic::before { content: ""; position: absolute; left: 8%; right: 8%; top: 36px; height: 74px; border: 1px solid rgba(238, 241, 244, .27); border-bottom: 0; border-radius: 50% 50% 0 0; box-shadow: 0 -10px 28px rgba(121, 135, 154, .12); }
.universe-graphic::after { content: ""; position: absolute; left: 0; right: 0; top: 45px; height: 1px; background: linear-gradient(90deg, transparent, var(--echo-ink-muted), var(--echo-ink-muted), var(--echo-ink-muted), transparent); box-shadow: none; }
.universe-graphic span { position: absolute; left: 50%; top: 40px; width: 8px; height: 8px; transform: translate(-50%, -50%); border-radius: 50%; background: var(--echo-ink); box-shadow: none; }
.universe-graphic i { position: absolute; left: 18%; top: 28px; width: 2px; height: 2px; border-radius: 50%; background: var(--echo-ink-muted); box-shadow: 54px -9px var(--echo-ink-muted), 138px 7px var(--echo-ink), 195px -4px var(--echo-ink-muted); }
.universe-graphic b { position: absolute; right: 4px; top: 0; color: var(--echo-ink-muted); font-size: 6px; font-weight: 500; letter-spacing: .12em; text-shadow: none; }
.product-backplane { grid-column: 1 / -1; grid-row: 4; min-height: 56px; padding: 0 18px; display: flex; align-items: center; gap: 11px; overflow: hidden; border: 1px solid rgba(238, 241, 244, .13); border-radius: 13px; background: linear-gradient(90deg, rgba(34, 38, 44, .42), rgba(9, 10, 12, .78), rgba(31, 35, 41, .38)); color: var(--echo-ink-muted); font-family: "SFMono-Regular", Consolas, monospace; font-size: 8px; letter-spacing: .11em; }
.product-backplane span { color: var(--echo-ink); }.product-backplane i { width: 18px; height: 1px; background: var(--echo-ink-muted); }.product-backplane b { color: var(--echo-ink-muted); font-size: inherit; font-weight: 500; }.product-backplane strong { margin-left: auto; color: var(--echo-ink-faint); font-size: 6px; font-weight: 500; white-space: nowrap; }
.agent-card { --mx: 50%; --my: 20%; position: relative; overflow: hidden; border: 1px solid var(--line); background: linear-gradient(155deg, rgba(9, 10, 12, .76), rgba(9, 10, 12, .86)); transition: transform .3s ease, border-color .3s ease, background .3s ease; }
.agent-card::after { content: ""; position: absolute; inset: 0; z-index: 0; background: radial-gradient(180px circle at var(--mx) var(--my), rgba(238, 241, 244, .12), transparent 70%); opacity: 0; pointer-events: none; transition: opacity .25s ease; }
.agent-card > * { position: relative; z-index: 1; }
.agent-card:hover { transform: translateY(-5px); border-color: rgba(238, 241, 244, .38); background: linear-gradient(155deg, rgba(27, 30, 35, .82), rgba(9, 10, 12, .92)); }

.capabilities-section { min-height: 900px; }
.capabilities-layout { padding: 96px 0 108px; }
.capability-field { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); grid-template-areas: "memory core agents" "devices core home" "world identity cloud"; gap: 14px; }
.capability-card, .capability-core, .capability-identity { position: relative; min-height: 148px; border: 1px solid var(--line); border-radius: 16px; background: rgba(9, 10, 12, .68); overflow: hidden; }
.capability-card { padding: 22px; }
.capability-card::before { content: ""; position: absolute; left: 20px; right: 20px; top: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(238, 241, 244, .52), transparent); }
.capability-card > span { color: var(--echo-ink-muted); font-size: 9px; letter-spacing: .14em; }
.capability-card h3 { margin: 22px 0 8px; color: var(--echo-ink); font-size: 13px; font-weight: 500; letter-spacing: .08em; }
.capability-card p { margin: 0; color: var(--echo-ink-muted); font-size: 11px; line-height: 1.65; }
.cap-memory { grid-area: memory; }.cap-agents { grid-area: agents; }.cap-devices { grid-area: devices; }.cap-home { grid-area: home; }.cap-world { grid-area: world; }.cap-cloud { grid-area: cloud; }
.capability-core { grid-area: core; min-height: 310px; display: grid; place-items: center; background: radial-gradient(circle at 50% 45%, rgba(135, 148, 165, .2), transparent 34%), rgba(9, 10, 12, .72); }
.capability-core::before, .capability-core::after { content: ""; position: absolute; width: 54%; aspect-ratio: 1; border: 1px solid rgba(238, 241, 244, .22); border-radius: 50%; animation: slow-spin 32s linear infinite; }
.capability-core::after { width: 75%; border-style: dashed; border-color: rgba(238, 241, 244, .14); animation-duration: 49s; animation-direction: reverse; }
.capability-core strong { position: relative; z-index: 2; width: 94px; aspect-ratio: 1; display: grid; place-items: center; border: 1px solid var(--echo-line-strong); border-radius: 50%; background: var(--echo-surface-raised); color: var(--echo-ink); line-height: 0; }
.capability-core strong .echo-mark { width: 60%; }
.capability-core span { position: absolute; bottom: 22px; color: var(--echo-ink-muted); font-size: 9px; letter-spacing: .18em; }
.capability-identity { grid-area: identity; min-height: 148px; padding: 24px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; background: linear-gradient(145deg, rgba(37, 42, 49, .5), rgba(9, 10, 12, .72)); }
.capability-identity b { color: var(--echo-ink); font-size: 12px; letter-spacing: .14em; }
.capability-identity span { margin-top: 9px; color: var(--echo-ink-muted); font-size: 11px; line-height: 1.5; }

.labs-section { min-height: 660px; }
.labs-layout { padding: 94px 0 102px; }
.agent-cards { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; }
.agent-card { min-height: 310px; padding: 22px 17px; border-radius: 16px; }
.agent-card > .status { margin-left: auto; }
.agent-planet { width: 128px; aspect-ratio: 1; margin: 9px auto 3px; display: grid; place-items: center; border-radius: 50%; background: radial-gradient(circle, rgba(106, 121, 140, .17), transparent 65%); animation: planet-breathe 10s ease-in-out infinite; }
.agent-planet::before { content: ""; position: absolute; width: 78px; aspect-ratio: 1; border: 1px solid rgba(238, 241, 244, .27); border-radius: 50%; background: radial-gradient(circle at 35% 30%, var(--echo-ink) 0 2%, var(--echo-ink-muted) 5%, #161a1e 31%, var(--echo-ground) 68%); box-shadow: none; }
.agent-planet::after { content: ""; position: absolute; width: 105px; height: 31px; border: 1px solid rgba(238, 241, 244, .18); border-radius: 50%; transform: rotate(-12deg); animation: planet-orbit 42s linear infinite; }
.agent-planet i { position: relative; z-index: 2; color: var(--echo-ink); font-size: 9px; font-style: normal; font-weight: 600; letter-spacing: .06em; }
.home .agent-planet { animation-delay: -2s; }.life .agent-planet { animation-delay: -4s; }.work .agent-planet { animation-delay: -6s; }.health .agent-planet { animation-delay: -8s; }.pet .agent-planet { animation-delay: -10s; }
.agent-card h3 { margin: 0 0 10px; color: var(--echo-ink); font-size: 13px; font-weight: 500; letter-spacing: .055em; }
.agent-card > p { margin: 0; color: var(--echo-ink-muted); font-size: 11px; line-height: 1.62; }

.collaboration-section { min-height: 600px; }
.collaboration-layout { display: grid; grid-template-columns: 29% 71%; align-items: center; gap: 44px; padding: 88px 0; }
.collaboration-copy .section-body { max-width: 330px; }
.flow-board { position: relative; min-height: 360px; padding: 30px 24px; display: grid; grid-template-columns: 1.12fr repeat(5, .76fr) 1.1fr; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 20px; background: radial-gradient(circle at 53% 50%, rgba(138, 150, 166, .11), transparent 38%), rgba(9, 10, 12, .62); overflow: hidden; }
.flow-line { position: absolute; z-index: 0; left: 10%; right: 11%; top: 45%; height: 1px; background: linear-gradient(90deg, transparent, var(--echo-ink-muted) 8%, var(--echo-ink-muted) 48%, var(--echo-ink-muted) 88%, transparent); box-shadow: none; }
.flow-line::after { content: ""; position: absolute; top: -2px; left: 0; width: 12%; height: 5px; transform: translateX(-110%); border-radius: 999px; background: linear-gradient(90deg, transparent, rgba(238, 241, 244, .92), transparent); opacity: 0; }
.flow-board.is-flowing .flow-line::after { animation: flow-travel 3.55s cubic-bezier(.33,.01,.25,1) .15s both; }
.flow-board.is-flowing .flow-agent i { animation: flow-pulse .48s ease-out both; }
.flow-board.is-flowing .flow-agent:nth-of-type(3) i { animation-delay: .7s; }.flow-board.is-flowing .flow-agent:nth-of-type(4) i { animation-delay: 1.25s; }.flow-board.is-flowing .flow-agent:nth-of-type(5) i { animation-delay: 1.8s; }.flow-board.is-flowing .flow-agent:nth-of-type(6) i { animation-delay: 2.35s; }.flow-board.is-flowing .flow-agent:nth-of-type(7) i { animation-delay: 2.9s; }
.request-wrap, .flow-agent, .result-bubble { position: relative; z-index: 2; }
.request-wrap { align-self: stretch; display: flex; flex-direction: column; justify-content: center; align-items: center; }
.request-bubble { width: 100%; min-height: 92px; padding: 16px 13px; display: flex; align-items: center; border: 1px solid var(--line); border-radius: 10px; background: rgba(9, 10, 12, .9); color: var(--echo-ink); font-size: 12px; line-height: 1.5; }
.request-avatar { min-width: 32px; height: 24px; margin-top: 8px; padding: 0 7px; display: grid; place-items: center; border: 1px solid var(--echo-ink-faint); border-radius: var(--echo-radius-xs); background: var(--echo-surface); color: var(--echo-ink-muted); font-size: 8px; letter-spacing: .1em; }
.flow-agent { align-self: center; text-align: center; }
.flow-agent i { width: clamp(48px, 4.3vw, 66px); aspect-ratio: 1; margin: 0 auto; display: grid; place-items: center; border: 1px solid rgba(238, 241, 244, .31); border-radius: 50%; background: radial-gradient(circle, rgba(102, 116, 135, .47), var(--echo-surface) 65%); color: var(--echo-ink); font-size: 8px; font-style: normal; font-weight: 650; letter-spacing: .04em; box-shadow: none; }
.agent-flow i { border-color: rgba(238, 241, 244, .3); }.device-flow i { border-color: rgba(238, 241, 244, .3); }.home-flow i { border-color: rgba(238, 241, 244, .28); }.action-flow i { border-color: rgba(238, 241, 244, .3); }
.flow-agent strong, .flow-agent small { display: block; white-space: nowrap; }
.flow-agent strong { margin-top: 10px; color: var(--echo-ink); font-size: 9px; font-weight: 500; }
.flow-agent small { margin-top: 4px; color: var(--echo-ink-muted); font-size: 8px; }
.result-bubble { align-self: stretch; padding: 15px 10px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; border: 1px solid var(--line); border-radius: 10px; background: rgba(9, 10, 12, .82); color: var(--echo-ink); font-size: 11px; text-align: center; }
.result-bubble i { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--echo-ink-muted); border-radius: 50%; color: var(--echo-ink-muted); font-size: 8px; font-style: normal; font-weight: 650; box-shadow: none; }

.universe-section { min-height: 780px; overflow: hidden; }
.universe-layout { display: grid; grid-template-columns: 39% 61%; align-items: center; gap: 44px; padding: 100px 0; }
.universe-meta { display: flex; align-items: center; gap: 14px; }
.universe-meta .kicker { margin: 0; }
.universe-copy h2 { margin-top: 19px; font-size: clamp(52px, 5.2vw, 78px); line-height: .92; letter-spacing: .04em; }
.universe-copy h2 span { color: var(--echo-ink); font-size: .38em; font-weight: 350; letter-spacing: .24em; }
.universe-manifesto { margin: 26px 0 0; color: var(--echo-ink-muted); font-size: 13px; line-height: 1.7; }
.universe-manifesto strong { color: var(--echo-ink); font-weight: 400; }
.universe-visual { position: relative; min-height: 560px; border: 1px solid rgba(238, 241, 244, .1); border-radius: 26px; background: radial-gradient(circle at 50% 47%, rgba(124, 138, 157, .18), transparent 28%), rgba(9, 10, 12, .42); overflow: hidden; }
.universe-orbit { position: absolute; left: 50%; top: 47%; transform: translate(-50%, -50%); border: 1px solid rgba(238, 241, 244, .17); border-radius: 50%; animation: slow-spin 40s linear infinite; }
.universe-orbit.orbit-one { width: 42%; aspect-ratio: 1; }.universe-orbit.orbit-two { width: 69%; height: 41%; transform: translate(-50%, -50%) rotate(-16deg); border-color: rgba(238, 241, 244, .17); animation-direction: reverse; animation-duration: 53s; }.universe-orbit.orbit-three { width: 86%; height: 62%; transform: translate(-50%, -50%) rotate(14deg); border-style: dashed; animation-duration: 68s; }
.universe-sun { position: absolute; z-index: 3; left: 50%; top: 47%; width: 132px; aspect-ratio: 1; transform: translate(-50%, -50%); display: grid; place-items: center; border: 1px solid var(--echo-line-strong); border-radius: 50%; background: var(--echo-surface-raised); box-shadow: var(--echo-shadow-raised); }
.universe-sun span { width: 58px; color: var(--echo-ink); line-height: 0; }
.universe-sun small { position: absolute; bottom: 27px; color: var(--echo-ink-muted); font-size: 8px; letter-spacing: .14em; }
.universe-feature { position: absolute; z-index: 4; width: 190px; padding: 15px 16px; border: 1px solid rgba(238, 241, 244, .17); border-radius: 11px; background: rgba(9, 10, 12, .78); }
.universe-feature b { color: var(--echo-ink); font-size: 9px; letter-spacing: .14em; }
.universe-feature span { display: block; margin-top: 7px; color: var(--echo-ink-muted); font-size: 10px; line-height: 1.55; }
.feature-ghosts { left: 6%; top: 13%; }.feature-realms { right: 6%; top: 17%; }.feature-capsule { left: 50%; bottom: 8%; transform: translateX(-50%); }

.final-section { min-height: 690px; overflow: hidden; border-bottom: 0; background: linear-gradient(180deg, rgba(9, 10, 12, .22), rgba(9, 10, 12, .58)); }
.final-section::before { content: ""; position: absolute; z-index: 0; left: 28%; bottom: 2%; width: 36%; height: 46%; border-radius: 50%; background: radial-gradient(circle, rgba(238, 241, 244, .1), rgba(238, 241, 244, .055) 34%, transparent 68%); filter: blur(9px); animation: sunrise-pulse 10s ease-in-out infinite; }
.final-layout { width: min(calc(100% - (var(--gutter) * 2)), var(--content)); min-height: 610px; margin: 0 auto; padding: 92px 0 94px; display: grid; grid-template-columns: 62% 38%; gap: 54px; align-items: center; }
.roadmap-stages { margin-top: 42px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.roadmap-stages article { min-height: 175px; padding: 20px; border: 1px solid var(--line); border-radius: 13px; background: rgba(9, 10, 12, .65); }
.roadmap-stages span { color: var(--echo-ink-muted); font-size: 9px; letter-spacing: .15em; }
.roadmap-stages strong { display: block; margin-top: 18px; color: var(--echo-ink); font-size: 13px; font-weight: 500; }
.roadmap-stages p { margin: 9px 0 0; color: var(--echo-ink-muted); font-size: 11px; line-height: 1.62; }
.enter-panel { min-height: 460px; padding: 26px 25px 24px; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(165deg, rgba(9, 10, 12, .82), rgba(9, 10, 12, .9)); box-shadow: 0 24px 55px rgba(0, 0, 0, .25); text-align: center; }
.panel-kicker { color: var(--echo-ink-muted); font-size: 9px; letter-spacing: .18em; }
.mini-vortex { position: relative; width: 170px; aspect-ratio: 1; margin: 20px auto 12px; display: grid; place-items: center; border-radius: 50%; background: radial-gradient(circle, rgba(238, 241, 244, .1), rgba(238, 241, 244, .03) 34%, transparent 66%); }
.mini-vortex::before, .mini-vortex::after { content: ""; position: absolute; inset: 19%; border: 1px solid rgba(238, 241, 244, .2); border-radius: 50%; box-shadow: none; animation: mini-orbit-round 22s linear infinite; }
.mini-vortex::after { inset: 10%; transform: rotate(60deg) scaleY(.48); border-color: rgba(238, 241, 244, .3); animation: mini-orbit-flat 34s linear infinite reverse; }
.mini-vortex i { position: relative; z-index: 2; width: 52px; color: var(--echo-ink); font-style: normal; line-height: 0; }
.enter-panel h3 { margin: 5px 0 0; color: var(--echo-ink); font-size: 18px; font-weight: 400; }
.enter-panel > p { max-width: 330px; margin: 10px 0 0; color: var(--echo-ink-muted); font-size: 11px; line-height: 1.65; }
.enter-panel > a { width: 100%; height: 40px; margin-top: 24px; padding: 0 15px; display: flex; align-items: center; justify-content: space-between; border: 1px solid var(--line); border-radius: var(--echo-radius-sm); color: var(--echo-ink); font-size: 9px; letter-spacing: .12em; text-transform: uppercase; transition: border-color .25s ease, background .25s ease; }
.enter-panel > a:hover { border-color: rgba(238, 241, 244, .4); background: rgba(44, 51, 59, .22); }
.enter-panel > a i { color: var(--echo-ink-muted); font-size: 12px; font-style: normal; }
.site-footer { position: absolute; z-index: 4; left: var(--gutter); right: var(--gutter); bottom: 0; height: 64px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-top: 1px solid rgba(238, 241, 244, .08); }
.footer-brand { min-height: 44px; color: var(--echo-ink); }
.footer-brand .echo-wordmark-svg { width: auto; height: 17px; opacity: .85; transition: opacity .25s ease; }
.footer-brand:hover .echo-wordmark-svg { opacity: 1; }
.site-footer nav { display: flex; align-items: center; gap: 30px; }.site-footer nav a { color: var(--echo-ink-muted); font-size: 9px; letter-spacing: .08em; }.site-footer nav a:hover { color: var(--echo-ink); }
.site-footer small { justify-self: end; color: var(--echo-ink-faint); font-size: 8px; }

@keyframes slow-spin { to { rotate: 360deg; } }
@keyframes hero-drift { from { transform: translate(-50%, -50%) rotate(-1deg) scale(.99); } to { transform: translate(-50%, -50%) rotate(1deg) scale(1.015); } }
@keyframes hero-breathe { 0%, 100% { opacity: .7; } 50% { opacity: .9; } }
@keyframes hero-copy-in { from { opacity: .85; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes signal-blink { 0%, 68%, 100% { opacity: .58; transform: scale(.85); } 76% { opacity: 1; transform: scale(1.18); } }
@keyframes play-ripple { 0%, 62% { opacity: 0; transform: scale(1); } 74% { opacity: .6; } 100% { opacity: 0; transform: scale(1.45); } }
@keyframes scroll-beam { 0%, 100% { opacity: .45; transform: scaleY(.7); } 50% { opacity: 1; transform: scaleY(1.12); } }
@keyframes station-status { 0%, 70%, 100% { opacity: .34; } 78% { opacity: 1; } }
@keyframes planet-breathe { 0%, 100% { transform: scale(.99); opacity: .9; } 50% { transform: scale(1.018); opacity: 1; } }
@keyframes planet-orbit { to { transform: rotate(348deg); } }
@keyframes flow-travel { 0% { opacity: 0; transform: translateX(-110%); } 8% { opacity: .9; } 92% { opacity: .9; } 100% { opacity: 0; transform: translateX(830%); } }
@keyframes flow-pulse { 0% { transform: scale(1); filter: brightness(1); } 45% { transform: scale(1.08); filter: brightness(1.45); } 100% { transform: scale(1); filter: brightness(1); } }
@keyframes sunrise-pulse { 0%, 100% { opacity: .68; transform: scale(.96); } 50% { opacity: 1; transform: scale(1.04); } }
@keyframes mini-orbit-round { to { transform: rotate(360deg); } }
@keyframes mini-orbit-flat { from { transform: rotate(60deg) scaleY(.48); } to { transform: rotate(420deg) scaleY(.48); } }

@media (hover: hover) and (pointer: fine) { .agent-card:hover::after { opacity: 1; } }

@media (max-width: 1100px) {
  .main-nav { gap: 19px; }
  .main-nav a { font-size: 9px; }
  .enter-link { min-width: 115px; }
  .ecosystem-layout { grid-template-columns: 34% 66%; gap: 18px; }
  .ecosystem-node { width: 128px; }
  .collaboration-layout { grid-template-columns: 25% 75%; gap: 24px; }
  .flow-board { padding: 22px 14px; gap: 4px; }
  .agent-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .product-deck { grid-template-columns: repeat(6, minmax(0, 1fr)); grid-template-rows: auto; }
  .product-station { grid-column: 1 / -1; grid-row: auto; min-height: 460px; }
  .product-os { grid-column: 1 / 4; grid-row: auto; }.product-memory { grid-column: 4 / 7; grid-row: auto; }
  .product-home { grid-column: 1 / 3; grid-row: auto; }.product-studio { grid-column: 3 / 5; grid-row: auto; }.product-universe { grid-column: 5 / 7; grid-row: auto; }
  .product-backplane { grid-column: 1 / -1; grid-row: auto; }
}

@media (max-width: 900px) {
  :root { --gutter: 22px; }
  .hero, .site-section { scroll-margin-top: 125px; }
  .site-header { height: auto; min-height: 72px; grid-template-columns: 1fr auto; }
  /* 条高 48px 是为了容纳 44px 的可点区域（WCAG 2.5.5）；改动时需同步
     .site-header::before 的 bottom 与上面的 scroll-margin-top。 */
  .main-nav { position: fixed; left: 0; right: 0; top: 68px; height: 48px; padding: 0 var(--gutter); display: flex; align-items: stretch; justify-content: flex-start; gap: 24px; overflow-x: auto; border-top: 1px solid rgba(238, 241, 244, .08); border-bottom: 1px solid rgba(238, 241, 244, .08); background: rgba(9, 10, 12, .88); backdrop-filter: blur(12px); scrollbar-width: none; }
  .main-nav a { display: flex; align-items: center; padding: 0; }
  .main-nav a::after { bottom: 10px; }
  .main-nav::-webkit-scrollbar { display: none; }
  .site-header::before { bottom: -48px; }
  .header-actions { gap: 9px; }
  .enter-link { min-width: 108px; }
  .hero { min-height: 780px; height: 100svh; }
  .hero-copy { margin-top: 62px; }
  .hero-telemetry { display: none; }
  .hero-rings { width: min(115vw, 720px); }
  .hero h1 { font-size: clamp(46px, 9.4vw, 72px); line-height: .94; }
  .hero h1 strong { margin-top: 10px; }
  .hero-subtitle span { width: 45px; }
  .ecosystem-layout, .universe-layout, .collaboration-layout { grid-template-columns: 1fr; gap: 52px; padding: 86px 0; }
  .ecosystem-map { height: 590px; }
  .section-heading { grid-template-columns: 1fr; gap: 18px; }
  .products-layout, .capabilities-layout, .labs-layout { padding: 86px 0 94px; }
  .product-deck { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-station { grid-column: 1 / -1; }.product-os { grid-column: 1; }.product-memory { grid-column: 2; }
  .product-home { grid-column: 1; }.product-studio { grid-column: 2; }.product-universe { grid-column: 1 / -1; }
  .product-backplane { grid-column: 1 / -1; }
  .capability-field { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-areas: "core core" "memory agents" "devices home" "world cloud" "identity identity"; }
  .capability-core { min-height: 320px; }
  .agent-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .collaboration-copy .section-body { max-width: 540px; }
  .flow-board { min-height: 570px; padding: 30px 22px; grid-template-columns: repeat(2, 1fr); gap: 25px 14px; }
  .flow-line { display: none; }
  .request-wrap, .result-bubble { grid-column: 1 / -1; }
  .request-bubble { width: min(300px, 100%); min-height: 62px; }
  .universe-visual { min-height: 600px; }
  .final-layout { min-height: 0; padding: 90px 0 120px; grid-template-columns: 1fr; gap: 48px; }
  .enter-panel { width: min(520px, 100%); margin: 0 auto; }
  .site-footer { height: 78px; grid-template-columns: 1fr auto; }
  .site-footer nav { display: none; }
}

@media (max-width: 600px) {
  .brand img { width: 126px; }
  .main-nav { gap: 14px; }
  .main-nav a { font-size: 8px; letter-spacing: .08em; }
  .locale-switch { gap: 1px; font-size: 8px; }
  .locale-switch button { padding: 5px 2px; font-size: 8px; }
  .enter-link { min-width: 102px; padding: 0 10px 0 13px; font-size: 8px; }
  .hero { min-height: 740px; }
  .hero-eyebrow { font-size: 8px; }
  .hero h1 { font-size: clamp(34px, 10.6vw, 48px); letter-spacing: .075em; text-indent: .075em; }
  .hero h1 span, .hero h1 strong { white-space: nowrap; }
  .hero h1 strong { margin-top: 9px; font-size: .62em; letter-spacing: .22em; text-indent: .22em; }
  .hero-subtitle { gap: 9px; }
  .hero-subtitle span { width: 18px; }
  .hero-subtitle strong { font-size: 11px; letter-spacing: .12em; }
  .lead { max-width: 305px; margin-left: auto; margin-right: auto; font-size: 10px; }.lead small { font-size: 10px; }
  .hero-actions { max-width: 270px; margin-left: auto; margin-right: auto; }
  .hero-text-link { display: none; }
  .section-copy h2 { font-size: 34px; }
  .ecosystem-copy h2 { font-size: 30px; line-height: 1.17; }
  .era-signals { grid-template-columns: 1fr; gap: 2px; }
  .era-signals span { min-height: 48px; padding: 9px 11px; }
  .ecosystem-chain { flex-wrap: wrap; white-space: normal; }
  .ecosystem-map { height: 650px; }
  .ecosystem-orbit.orbit-a { width: 82%; }.ecosystem-orbit.orbit-b { width: 102%; }
  .ecosystem-core { width: 100px; top: 45%; }
  .ecosystem-node { width: 116px; min-height: 65px; padding: 10px; }
  .ecosystem-node strong { font-size: 8px; }.ecosystem-node small { font-size: 9px; }
  .node-memory { left: 3%; top: 10%; }.node-agents { right: 3%; top: 10%; }.node-cloud { left: 0; top: 39%; }.node-devices { right: 0; top: 39%; }.node-world { left: 4%; bottom: 12%; }.node-home { right: 4%; bottom: 12%; }
  .identity-anchor { bottom: 4%; }
  .epoch-map::after { left: 15px; top: 14px; font-size: 6px; letter-spacing: .09em; }
  .product-deck, .agent-cards { grid-template-columns: 1fr; }
  .product-station, .product-os, .product-memory, .product-home, .product-studio, .product-universe, .product-backplane { grid-column: 1; grid-row: auto; }
  .product-station { min-height: 430px; padding: 18px; }
  .station-layout { min-height: 368px; grid-template-columns: 1fr; align-items: start; }
  .station-layout .product-copy { padding: 20px 0 0; }
  .station-layout .product-copy > p:last-of-type { max-width: none; }
  .product-route { margin-top: 16px; }
  .station-visual { min-height: 210px; }
  .station-device { width: 205px; height: 124px; border-radius: 18px; }
  .station-mark { width: 48px; }
  .station-device small { bottom: 19px; }.station-telemetry { bottom: 0; font-size: 5px; }
  .system-card:not(.product-station) { min-height: 194px; padding: 17px 18px; }
  .system-card:not(.product-station) .product-copy { left: 18px; right: 18px; bottom: 17px; }
  .product-graphic { display: none; }
  .product-copy h3 { font-size: 15px; }.product-role { margin: 6px 0 9px !important; }
  .product-copy > p:last-child { font-size: 10.5px; line-height: 1.6; }
  .product-backplane { min-height: 50px; gap: 5px; padding: 0 12px; font-size: 7px; letter-spacing: .07em; }
  .product-backplane i { width: 8px; }.product-backplane strong { display: none; }
  .capability-field { grid-template-columns: 1fr; grid-template-areas: "core" "memory" "agents" "devices" "home" "world" "cloud" "identity"; }
  .capability-core { min-height: 300px; }
  .agent-card { min-height: 285px; }
  .flow-board { grid-template-columns: 1fr; min-height: 780px; }
  .request-wrap, .result-bubble { grid-column: auto; }
  .universe-copy h2 { font-size: 56px; }
  .universe-visual { min-height: 680px; }
  .universe-feature { width: calc(100% - 36px); left: 18px !important; right: auto !important; transform: none !important; }
  .feature-ghosts { top: 24px; }.feature-realms { top: auto; bottom: 96px; }.feature-capsule { bottom: 20px; }
  .universe-sun { top: 47%; }
  .roadmap-stages { grid-template-columns: 1fr; }
  .roadmap-stages article { min-height: 140px; }
  .site-footer small { max-width: 160px; font-size: 7px; text-align: right; }
}

/* 触摸设备最小可点区域 44×44（WCAG 2.5.5）。桌面精确指针保持原本紧凑排版，
   因此只在 pointer: coarse 下放大；用 padding + 负 margin 扩大命中区而不改变视觉位置。 */
@media (pointer: coarse) {
  .locale-switch { gap: 0; }
  .locale-switch button { min-width: 44px; min-height: 44px; padding: 0; display: inline-flex; align-items: center; justify-content: center; }
  .main-nav a { min-height: 44px; }
  .site-footer nav { gap: 4px; flex-wrap: wrap; }
  .site-footer nav a { min-height: 44px; display: inline-flex; align-items: center; padding: 0 10px; }
  .scroll-cue { min-height: 44px; padding-top: 6px; }
  .hero-text-link, .outline-link, .enter-panel a { min-height: 44px; display: inline-flex; align-items: center; }
  .play-button { width: 44px; height: 44px; }
  .primary-cta, .enter-link { min-height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
  .product-card:hover, .agent-card:hover, .primary-cta:hover { transform: none; }
  body.motion-force .hero-rings { animation: hero-drift 18s ease-in-out infinite alternate, hero-breathe 12s ease-in-out infinite !important; }
  body.motion-force .play-button::after { animation: play-ripple 4.8s ease-out infinite !important; }
}