@charset "UTF-8";

:root {
  color-scheme: dark;
  --bg: #0b1515;
  --surface: #122120;
  --surface-alt: #192b29;
  --ink: #f0f3ec;
  --muted: #a7b9b2;
  --line: #30413b;
  --accent: #9ce4c5;
  --accent-ink: #0c2922;
  --gold: #e6c58c;
  --radius: 18px;
  --max: 1200px;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  line-height: 1.75;
  background: var(--bg);
  color: var(--ink);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 105px;
}
body {
  margin: 0;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input {
  font: inherit;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  cursor: pointer;
}
button:disabled {
  cursor: default;
  opacity: 0.5;
}
button,
a,
summary {
  touch-action: manipulation;
}
img,
svg {
  max-width: 100%;
  display: block;
}
img {
  height: auto;
}
button,
a {
  transition:
    color 0.2s,
    background 0.2s,
    border-color 0.2s;
}
button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 5px;
}
::selection {
  background: var(--accent);
  color: var(--accent-ink);
}
[hidden] {
  display: none !important;
}
h1,
h2,
h3,
p {
  margin: 0;
}
h1,
h2,
h3 {
  line-height: 1.3;
  font-weight: 600;
  text-wrap: balance;
}
p {
  text-wrap: pretty;
}
h1 {
  font-size: clamp(42px, 5.3vw, 76px);
  letter-spacing: -0.05em;
}
h2 {
  font-size: clamp(30px, 3.2vw, 46px);
  letter-spacing: -0.035em;
}
h3 {
  font-size: 23px;
  letter-spacing: -0.02em;
}
.wrap {
  width: min(var(--max), calc(100% - 96px));
  margin-inline: auto;
}
.skip {
  position: fixed;
  top: -80px;
  left: 20px;
  z-index: 100;
  padding: 10px 20px;
  background: var(--accent);
  color: var(--accent-ink);
}
.skip:focus {
  top: 12px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.header-inner {
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 22px;
  font-weight: 650;
  letter-spacing: -0.7px;
  white-space: nowrap;
}
.brand img {
  width: 37px;
  height: 37px;
  border-radius: 10px;
}
.brand small {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--muted);
  border-left: 1px solid var(--line);
  margin-left: 8px;
  padding-left: 18px;
}
.nav {
  display: flex;
  align-items: center;
  gap: 34px;
  font-size: 14px;
  color: var(--muted);
}
.nav a {
  padding-block: 13px;
}
.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
}
.nav a[aria-current="page"] {
  box-shadow: 0 2px 0 var(--accent);
}
.nav .nav-cta {
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 9px 20px;
}
.nav-cta:hover {
  background: var(--surface-alt);
}
.menu-button {
  display: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  padding: 8px 14px;
  border-radius: 8px;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 25px;
}
.eyebrow::before {
  content: "";
  height: 1px;
  width: 26px;
  background: currentColor;
}
.muted {
  color: var(--muted);
}
.accent {
  color: var(--accent);
}
.lead {
  margin-top: 26px;
  font-size: 17px;
  line-height: 1.95;
  color: var(--muted);
  max-width: 580px;
}
.actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 36px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 25px;
  padding: 14px 25px;
  min-height: 50px;
  border-radius: 7px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 14px;
  font-weight: 650;
}
.button:hover {
  background: #c3f2da;
  border-color: #c3f2da;
}
.button.secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.button.secondary:hover {
  background: var(--surface-alt);
}
.text-link {
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 20px;
  min-height: 44px;
}
.text-link:hover {
  color: var(--accent);
}
.arrow {
  font-family: Arial, sans-serif;
  font-size: 21px;
  font-weight: 400;
  line-height: 1;
}
.fine {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.8;
}
.tag,
.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  letter-spacing: 0.04em;
  border: 1px solid var(--line);
  padding: 3px 10px;
  border-radius: 100px;
  white-space: nowrap;
  color: var(--muted);
}
.status {
  color: var(--accent);
}
.status::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}
.status.planned {
  color: var(--gold);
}
.status.progress {
  color: #b2c9f2;
}
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  min-height: 690px;
  padding-block: 76px;
}
.hero-copy {
  position: relative;
  z-index: 2;
}
.hero h1 .last {
  display: block;
  color: var(--accent);
}
.hero-note {
  margin-top: 40px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.mini-line {
  width: 30px;
  height: 1px;
  background: var(--line);
}
.assistant-stage {
  position: relative;
  height: 530px;
  min-width: 0;
  isolation: isolate;
}
.stage-grid {
  position: absolute;
  inset: 0;
  opacity: 0.18;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 45px 45px;
  mask-image: radial-gradient(ellipse, #000 15%, transparent 72%);
}
.stage-orbit {
  position: absolute;
  border: 1px solid #34594b;
  border-radius: 50%;
  width: 420px;
  height: 420px;
  max-width: 88%;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse, #2954413b, transparent 65%);
}
.stage-orbit::before {
  content: "";
  position: absolute;
  inset: 32px;
  border: 1px dashed #41604e;
  border-radius: inherit;
  opacity: 0.6;
}
.stage-orbit::after {
  content: "";
  position: absolute;
  height: 7px;
  width: 7px;
  border-radius: 50%;
  top: 17%;
  left: 11%;
  background: var(--accent);
  box-shadow: 0 0 16px #9ce4c580;
}
.assistant-figure {
  position: absolute;
  width: 320px;
  left: 50%;
  top: 47%;
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 28px 30px #0008);
}
.stage-base {
  position: absolute;
  left: 50%;
  top: 80%;
  transform: translate(-50%, -50%);
  width: 230px;
  height: 35px;
  border-radius: 50%;
  background: #9ce4c51a;
  border: 1px solid #9ce4c54d;
  box-shadow: 0 0 55px #9ce4c515;
  z-index: -1;
}
.orbit-label {
  position: absolute;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.orbit-label.top {
  top: 0;
  left: 22px;
}
.orbit-label.bottom {
  bottom: 2px;
  right: 15px;
}
.float-panel {
  position: absolute;
  padding: 15px 18px;
  border: 1px solid #395047;
  border-radius: 11px;
  background: #14231ff5;
  box-shadow: 0 14px 35px #0003;
  font-size: 12px;
  min-width: 170px;
}
.float-panel .micro {
  color: var(--accent);
  font-size: 10px;
  letter-spacing: 0.09em;
  margin-bottom: 6px;
}
.float-panel .panel-title {
  font-size: 13px;
  margin-bottom: 4px;
  color: var(--ink);
}
.float-panel p {
  color: var(--muted);
  font-size: 11px;
}
.float-panel.memory {
  left: -12px;
  top: 72px;
}
.float-panel.task {
  right: -15px;
  bottom: 91px;
}
.float-panel.note {
  left: 4px;
  bottom: 23px;
  min-width: 235px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.pulse {
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px #9ce4c510;
}
.device-strip {
  border-block: 1px solid var(--line);
}
.device-strip .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 27px;
}
.device-strip .strip-title {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.device-strip .device-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}
.device-item svg {
  width: 20px;
  height: 20px;
  color: var(--muted);
}
.section {
  padding-block: 105px;
}
.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 55px;
}
.section-heading p {
  max-width: 365px;
  color: var(--muted);
  font-size: 15px;
}
.feature-rows {
  border-top: 1px solid var(--line);
}
.feature-row {
  display: grid;
  grid-template-columns: 60px 1fr 1fr 40px;
  gap: 24px;
  align-items: start;
  padding: 35px 0;
  border-bottom: 1px solid var(--line);
}
.feature-row .number {
  color: var(--accent);
  font:
    12px "Consolas",
    monospace;
  padding-top: 6px;
}
.feature-row h3 {
  margin-bottom: 10px;
}
.feature-row p {
  font-size: 14px;
  color: var(--muted);
  max-width: 460px;
}
.feature-row .arrow {
  padding-top: 6px;
  color: var(--accent);
}
.feature-row:hover h3 {
  color: var(--accent);
}
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.section-tint {
  background: var(--surface);
  border-block: 1px solid var(--line);
}
.quote {
  font-size: clamp(27px, 3vw, 42px);
  letter-spacing: -0.03em;
  line-height: 1.6;
}
.small-label {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.check-list {
  padding: 0;
  list-style: none;
  margin: 27px 0 0;
}
.check-list li {
  padding: 12px 0;
  display: flex;
  gap: 14px;
  color: var(--muted);
  font-size: 14px;
  border-bottom: 1px solid var(--line);
}
.check-list li::before {
  content: "↗";
  color: var(--accent);
}
.closing {
  text-align: center;
  padding-block: 95px;
  border-top: 1px solid var(--line);
}
.closing .eyebrow,
.closing .actions {
  justify-content: center;
}
.closing p {
  margin: 22px auto 0;
  max-width: 560px;
  color: var(--muted);
}
.footer {
  border-top: 1px solid var(--line);
  padding-block: 30px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 11px;
  color: var(--muted);
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer a:hover {
  color: var(--ink);
}
.page-intro {
  padding-block: 78px 55px;
  max-width: 820px;
}
.page-intro h1 {
  font-size: clamp(40px, 4.5vw, 64px);
}
.page-intro .lead {
  max-width: 690px;
}
.subnav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 30px;
}
.subnav a {
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  padding: 8px 15px;
}
.subnav a:hover {
  background: var(--surface);
}
.scenario {
  border-top: 1px solid var(--line);
  padding-block: 80px;
  scroll-margin-top: 90px;
}
.scenario-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 70px;
  align-items: start;
}
.scenario-copy {
  padding-top: 12px;
}
.scenario-copy h2 {
  font-size: 36px;
}
.scenario-copy p {
  color: var(--muted);
  margin-top: 20px;
  font-size: 15px;
}
.scenario-copy .status {
  margin-top: 25px;
}
.demo {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  min-width: 0;
}
.demo-head {
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  gap: 10px;
}
.window-dots {
  display: inline-flex;
  gap: 5px;
  margin-right: 12px;
}
.window-dots i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #668277;
}
.demo-content {
  padding: 25px;
}
.demo-step {
  margin-bottom: 18px;
}
.demo-step:last-child {
  margin-bottom: 0;
}
.demo-step .step-label {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.1em;
  margin-bottom: 9px;
}
.bubble {
  padding: 16px 19px;
  background: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: 3px 13px 13px;
  font-size: 14px;
}
.bubble.user {
  border-radius: 13px 3px 13px 13px;
  background: #243d32;
  border-color: #41604e;
  margin-left: 30px;
}
.bubble.answer {
  border-left: 2px solid var(--accent);
}
.evidence {
  margin-top: 14px;
  border-left: 2px solid var(--line);
  padding-left: 14px;
  font-size: 12px;
  color: var(--muted);
}
.evidence strong {
  color: var(--ink);
  font-weight: 500;
}
.demo-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding: 16px 22px;
}
.demo-controls button {
  border-radius: 5px;
  padding: 8px 15px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font-size: 12px;
  min-height: 40px;
}
.demo-controls button[data-next] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}
.demo-controls button:hover:not(:disabled) {
  border-color: var(--accent);
}
.demo-counter {
  margin-left: auto;
  font:
    11px "Consolas",
    monospace;
  color: var(--muted);
}
.task-line {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  gap: 10px;
  align-items: center;
  padding-block: 10px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
}
.task-line:last-child {
  border-bottom: 0;
}
.task-line .check {
  color: var(--accent);
}
.task-line small {
  color: var(--muted);
  font-size: 10px;
}
.mini-chart {
  display: flex;
  height: 80px;
  align-items: end;
  gap: 10px;
  margin: 20px 0 10px;
}
.mini-chart span {
  flex: 1;
  height: var(--height);
  background: #5a8b75;
  border-radius: 3px 3px 0 0;
}
.mini-chart span:nth-child(3n) {
  background: var(--accent);
}
.chart-key {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--muted);
}
.inline-note {
  padding: 20px 0 30px;
  color: var(--muted);
  font-size: 12px;
}
.future-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  padding-bottom: 75px;
  align-items: center;
}
.hardware-scene {
  position: relative;
  min-height: 460px;
  display: grid;
  place-items: center;
  background: radial-gradient(ellipse, #31544450 0, transparent 65%);
}
.hardware-object {
  position: relative;
  width: 220px;
  height: 285px;
  border-radius: 38px 38px 45px 45px;
  background: linear-gradient(110deg, #b5c1b8, #e8eee5 24%, #7e8f84 90%);
  box-shadow:
    20px 25px 40px #0005,
    inset -6px 0 5px #293d3250;
  transform: rotate(-8deg);
  padding: 15px;
}
.hardware-screen {
  height: 192px;
  border: 3px solid #202e27;
  border-radius: 27px;
  overflow: hidden;
  background: radial-gradient(circle at 50% 50%, #3b5c4b, #101d16);
  position: relative;
}
.hardware-screen img {
  height: 180px;
  width: 180px;
  object-fit: contain;
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
}
.speaker-grill {
  margin: 23px auto 0;
  width: 140px;
  height: 23px;
  background: radial-gradient(circle, #46554a 1px, transparent 1.5px);
  background-size: 6px 6px;
}
.hardware-light {
  width: 22px;
  height: 3px;
  margin: 9px auto;
  background: #f1fbdd;
  box-shadow: 0 0 9px #ceffb8;
  border-radius: 4px;
}
.concept-label {
  position: absolute;
  top: 5px;
  right: 0;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.hardware-caption {
  position: absolute;
  bottom: 0;
  width: 100%;
  text-align: center;
  font-size: 11px;
  color: var(--muted);
}
.hardware-note {
  position: absolute;
  left: -20px;
  bottom: 65px;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 14px 20px;
  border-radius: 9px;
  font-size: 12px;
  box-shadow: 0 10px 30px #0003;
}
.hardware-note small {
  display: block;
  color: var(--accent);
  font-size: 10px;
  margin-bottom: 5px;
}
.roadmap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 45px;
}
.roadmap-item {
  border-top: 1px solid var(--line);
  padding: 28px 30px 0 0;
  position: relative;
}
.roadmap-item::before {
  content: "";
  position: absolute;
  height: 7px;
  width: 7px;
  background: var(--accent);
  border-radius: 50%;
  top: -4px;
}
.roadmap-item:last-child::before {
  background: var(--gold);
}
.roadmap-item h3 {
  font-size: 21px;
  margin: 18px 0 12px;
}
.roadmap-item p {
  font-size: 14px;
  color: var(--muted);
}
.device-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.device-cell {
  padding: 35px 25px;
  border-right: 1px solid var(--line);
}
.device-cell:last-child {
  border: 0;
}
.device-cell .device-icon {
  width: 42px;
  height: 42px;
  margin-bottom: 24px;
  color: var(--accent);
}
.device-cell h3 {
  font-size: 18px;
  margin-bottom: 14px;
}
.device-cell p {
  font-size: 12px;
  color: var(--muted);
  margin-top: 15px;
}
.two-notes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 40px;
}
.two-notes h3 {
  font-size: 20px;
  margin-bottom: 15px;
}
.two-notes p {
  font-size: 14px;
  color: var(--muted);
}
.brief {
  color-scheme: light;
  background: var(--bg);
  color: var(--ink);
  --bg: #f6f6ef;
  --surface: #ecefe6;
  --surface-alt: #e4eadd;
  --ink: #19382e;
  --muted: #53665a;
  --line: #cbd4c5;
  --accent: #286149;
  --accent-ink: #fff;
  --gold: #815b17;
}
.brief .button:hover {
  background: #1d4d38;
  border-color: #1d4d38;
}
.brief .button.secondary:hover {
  background: var(--surface-alt);
  border-color: var(--line);
}
.brief .status.progress {
  color: #3b5f82;
}
.brief .brand small {
  font-size: 10px;
}
.brief .hero {
  grid-template-columns: 1.1fr 0.9fr;
  min-height: 640px;
  gap: 70px;
}
.brief .hero h1 {
  font-size: clamp(40px, 4.4vw, 65px);
  line-height: 1.35;
}
.brief .hero h1 .last {
  color: #4a775c;
}
.brief .hero-note {
  font-size: 12px;
}
.brief .button {
  border-radius: 4px;
}
.brief .eyebrow {
  color: var(--muted);
}
.brief .bubble.user {
  background: #e1ecdf;
  border-color: #becfbb;
}
.brief .section {
  padding-block: 85px;
}
.brief .page-intro {
  padding-block: 76px 60px;
}
.brief .feature-row {
  grid-template-columns: 55px 0.85fr 1.15fr 30px;
}
.blueprint {
  position: relative;
  padding: 25px;
  background-color: #e9eee3;
  border: 1px solid var(--line);
  background-image: radial-gradient(#b3c2b3 1px, transparent 1px);
  background-size: 17px 17px;
}
.blueprint .small-label {
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
}
.blueprint-node {
  background: var(--bg);
  border: 1px solid #b4c5b3;
  padding: 20px;
}
.blueprint-node.main {
  text-align: center;
  background: #204737;
  color: #f4f8ee;
  border-color: #204737;
}
.blueprint-node.main p {
  color: #bdcfbf;
  font-size: 12px;
  margin-top: 7px;
}
.blueprint-node.main img {
  margin: 0 auto 12px;
  height: 50px;
  width: 50px;
  border-radius: 14px;
}
.blueprint-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}
.blueprint-node h3 {
  font-size: 15px;
}
.blueprint-node p {
  font-size: 11px;
  color: var(--muted);
  margin-top: 7px;
}
.connector {
  height: 27px;
  width: 1px;
  margin-inline: auto;
  background: #9cb19b;
}
.blueprint-bottom {
  text-align: center;
  border: 1px solid #b4c5b3;
  background: var(--bg);
  padding: 13px;
  font-size: 12px;
}
.metric-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--line);
}
.metric-band > div {
  padding: 27px 32px;
  border-right: 1px solid var(--line);
}
.metric-band > div:first-child {
  padding-left: 0;
}
.metric-band > div:last-child {
  border: 0;
}
.metric-band strong {
  display: block;
  font-size: 19px;
  font-weight: 550;
  margin-bottom: 6px;
}
.metric-band span {
  color: var(--muted);
  font-size: 12px;
}
.editorial {
  display: grid;
  grid-template-columns: 0.62fr 1.38fr;
  gap: 85px;
}
.editorial .eyebrow {
  margin-top: 6px;
}
.editorial h2 {
  font-size: 33px;
}
.editorial-body > p {
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 16px;
}
.editorial-body > p strong {
  color: var(--ink);
  font-weight: 550;
}
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 36px;
}
.pillar {
  padding-top: 20px;
  border-top: 2px solid var(--accent);
}
.pillar .small-label {
  margin-bottom: 15px;
  display: block;
}
.pillar h3 {
  font-size: 20px;
  margin-bottom: 12px;
}
.pillar p {
  font-size: 13px;
  color: var(--muted);
}
.case {
  border-top: 1px solid var(--line);
  padding-block: 70px;
}
.case-top {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 70px;
  margin-bottom: 40px;
  align-items: start;
}
.case-top h2 {
  font-size: 33px;
}
.case-top p {
  color: var(--muted);
  margin-top: 18px;
  font-size: 15px;
}
.case-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}
.case-facts h3 {
  font-size: 14px;
  margin-bottom: 12px;
}
.case-facts p {
  font-size: 13px;
  color: var(--muted);
}
.case-visual {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 28px;
}
.case-visual .tag {
  margin-bottom: 18px;
}
.proof-flow {
  display: grid;
  gap: 10px;
}
.proof-row {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 16px;
  padding: 13px;
  background: var(--bg);
  border: 1px solid var(--line);
  font-size: 12px;
}
.proof-row b {
  font-weight: 550;
}
.proof-row span {
  color: var(--muted);
}
.flow-horizontal {
  display: flex;
  gap: 10px;
  align-items: center;
}
.flow-horizontal > div {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--line);
  text-align: center;
  padding: 18px 8px;
  font-size: 13px;
}
.flow-horizontal small {
  display: block;
  font-size: 10px;
  color: var(--muted);
  margin-top: 6px;
}
.flow-horizontal > span {
  color: var(--muted);
}
.state-rows {
  display: grid;
  gap: 8px;
}
.state-row {
  background: var(--bg);
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1.4fr 1fr;
  padding: 12px 15px;
  font-size: 12px;
  gap: 12px;
}
.state-row span {
  color: var(--muted);
}
.architecture {
  margin-top: 40px;
}
.architecture details {
  border: 1px solid var(--line);
  margin-bottom: 12px;
  background: var(--bg);
}
.architecture summary {
  cursor: pointer;
  min-height: 80px;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}
.architecture summary::-webkit-details-marker {
  display: none;
}
.architecture summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 300;
  margin-left: auto;
}
.architecture details[open] summary::after {
  content: "−";
}
.architecture summary .layer-id {
  font:
    11px "Consolas",
    monospace;
  color: var(--muted);
}
.architecture summary h3 {
  font-size: 19px;
}
.architecture summary .layer-tech {
  margin-left: auto;
  font-size: 12px;
  color: var(--muted);
}
.architecture .layer-content {
  padding: 0 28px 26px 64px;
  color: var(--muted);
  font-size: 14px;
  max-width: 850px;
}
.architecture .layer-content p + p {
  margin-top: 12px;
}
.system-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
  margin-top: 40px;
}
.system-flow article {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.system-flow span {
  font:
    12px "Consolas",
    monospace;
  color: var(--muted);
}
.system-flow h3 {
  font-size: 18px;
  margin: 14px 0;
}
.system-flow p {
  font-size: 13px;
  color: var(--muted);
}
.boundary {
  margin-top: 40px;
  border-left: 3px solid var(--accent);
  padding: 20px 26px;
  background: var(--surface);
  font-size: 14px;
  color: var(--muted);
}
.boundary strong {
  color: var(--ink);
}
.brief .closing {
  text-align: left;
}
.brief .closing .actions {
  justify-content: flex-start;
}
.brief .closing p {
  margin-inline: 0;
}
.print-button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  padding: 10px 0;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.js-only {
  display: none;
}
.enhanced .js-only {
  display: flex;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.section-topline {
  border-top: 1px solid var(--line);
}
.source-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}
@media (min-width: 1025px) and (prefers-reduced-motion: no-preference) {
  .assistant-figure {
    animation: float 7s ease-in-out infinite;
  }
  @keyframes float {
    0%,
    100% {
      transform: translate(-50%, -50%);
    }
    50% {
      transform: translate(-50%, calc(-50% - 9px));
    }
  }
}
@media (max-width: 1100px) {
  .wrap {
    width: calc(100% - 64px);
  }
  .hero {
    gap: 25px;
  }
  .brief .hero {
    gap: 35px;
  }
  .float-panel.memory {
    left: -4px;
  }
  .float-panel.task {
    right: 0;
  }
  .assistant-figure {
    width: 280px;
  }
  .stage-orbit {
    height: 360px;
    width: 360px;
  }
  .scenario-grid,
  .case-top {
    gap: 40px;
  }
  .editorial {
    gap: 45px;
  }
  .brand small {
    display: none;
  }
}
@media (max-width: 800px) {
  .wrap {
    width: calc(100% - 48px);
  }
  .header-inner {
    height: 76px;
  }
  .nav {
    gap: 20px;
    font-size: 13px;
  }
  .nav .nav-cta {
    display: none;
  }
  .hero,
  .brief .hero {
    grid-template-columns: 1fr;
    padding-block: 55px;
    min-height: auto;
    gap: 25px;
  }
  .hero-copy {
    max-width: 620px;
  }
  .hero h1 {
    font-size: 58px;
  }
  .assistant-stage {
    width: min(100%, 520px);
    margin-inline: auto;
    height: 470px;
  }
  .float-panel.memory {
    left: 0;
  }
  .float-panel.task {
    right: 0;
  }
  .hero-note {
    margin-top: 27px;
  }
  .section,
  .brief .section {
    padding-block: 65px;
  }
  .section-heading {
    align-items: start;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 35px;
  }
  .section-heading p {
    max-width: 550px;
  }
  .split,
  .scenario-grid,
  .case-top,
  .editorial,
  .future-hero {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  .feature-row,
  .brief .feature-row {
    grid-template-columns: 35px 1fr 30px;
    gap: 15px;
  }
  .feature-row > p {
    grid-column: 2;
  }
  .feature-row > .arrow {
    grid-column: 3;
    grid-row: 1;
  }
  .device-strip .wrap {
    justify-content: flex-start;
    gap: 25px 35px;
  }
  .device-strip .strip-title {
    width: 100%;
  }
  .device-grid {
    grid-template-columns: 1fr 1fr;
  }
  .device-cell:nth-child(2) {
    border-right: 0;
  }
  .device-cell:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }
  .blueprint {
    max-width: 550px;
    width: 100%;
    margin-top: 15px;
  }
  .scenario {
    padding-block: 55px;
  }
  .scenario-copy {
    max-width: 600px;
  }
  .page-intro {
    padding-block: 55px 40px;
  }
  .future-hero .page-intro {
    padding-bottom: 0;
  }
  .hardware-scene {
    width: min(450px, 100%);
    margin-inline: auto;
  }
  .hardware-note {
    left: 0;
  }
  .roadmap {
    gap: 25px;
  }
  .roadmap-item {
    padding-right: 0;
  }
  .two-notes {
    gap: 30px;
  }
  .metric-band > div {
    padding: 25px 18px;
  }
  .metric-band strong {
    font-size: 17px;
  }
  .case-facts {
    gap: 24px;
  }
  .system-flow {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
  .footer-inner {
    flex-wrap: wrap;
  }
  .architecture summary .layer-tech {
    display: none;
  }
}
@media (max-width: 540px) {
  .wrap {
    width: calc(100% - 40px);
  }
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    min-height: 73px;
    gap: 0;
    padding-block: 15px;
  }
  .brand {
    font-size: 20px;
  }
  .brand img {
    width: 33px;
    height: 33px;
  }
  .nav {
    width: 100%;
    justify-content: space-between;
    gap: 20px;
    margin-top: 12px;
    font-size: 12px;
  }
  .nav a {
    padding-block: 8px;
  }
  .enhanced .menu-button {
    display: block;
    min-height: 43px;
  }
  .enhanced .nav:not(.is-open) {
    display: none;
  }
  .hero h1,
  .brief .hero h1 {
    font-size: 42px;
    line-height: 1.4;
  }
  .brief .hero h1 {
    font-size: 35px;
  }
  .hero {
    padding-block: 42px;
  }
  .eyebrow {
    font-size: 10px;
    margin-bottom: 20px;
  }
  .lead {
    font-size: 15px;
    margin-top: 22px;
  }
  .actions {
    gap: 16px;
    margin-top: 28px;
  }
  .button {
    font-size: 13px;
    padding: 12px 20px;
    gap: 19px;
  }
  .text-link {
    font-size: 13px;
  }
  .assistant-stage {
    height: 440px;
    margin-top: 22px;
  }
  .assistant-figure {
    width: 265px;
    top: 44%;
  }
  .stage-orbit {
    width: 300px;
    height: 300px;
  }
  .stage-base {
    top: 72%;
    width: 170px;
  }
  .float-panel {
    padding: 11px 13px;
    min-width: 130px;
  }
  .float-panel .micro {
    font-size: 9px;
  }
  .float-panel .panel-title {
    font-size: 12px;
  }
  .float-panel p {
    font-size: 10px;
  }
  .float-panel.memory {
    top: 45px;
    left: -4px;
  }
  .float-panel.task {
    bottom: 63px;
    right: -4px;
  }
  .float-panel.note {
    bottom: 5px;
    left: 0;
    min-width: 0;
  }
  .orbit-label.bottom {
    display: none;
  }
  .device-strip .wrap {
    gap: 20px 27px;
  }
  .device-strip .device-item {
    font-size: 12px;
  }
  h2,
  .scenario-copy h2,
  .case-top h2 {
    font-size: 29px;
  }
  .feature-row h3 {
    font-size: 20px;
  }
  .feature-row {
    padding-block: 28px;
  }
  .feature-row p {
    font-size: 13px;
  }
  .section,
  .brief .section {
    padding-block: 55px;
  }
  .section-heading {
    gap: 20px;
  }
  .closing {
    padding-block: 65px;
  }
  .closing h2 {
    font-size: 29px;
  }
  .footer-links {
    flex-wrap: wrap;
    gap: 22px;
  }
  .page-intro h1 {
    font-size: 34px;
  }
  .subnav {
    gap: 5px;
  }
  .subnav a {
    font-size: 11px;
    padding-inline: 10px;
  }
  .demo-head {
    padding: 14px 16px;
    font-size: 11px;
  }
  .demo-head .tag {
    padding: 2px 7px;
    font-size: 9px;
  }
  .demo-content {
    padding: 18px 16px;
  }
  .demo-controls {
    padding: 14px 16px;
    gap: 10px;
  }
  .bubble {
    padding: 14px;
    font-size: 13px;
  }
  .bubble.user {
    margin-left: 18px;
  }
  .demo-counter {
    font-size: 10px;
  }
  .task-line {
    font-size: 11px;
    grid-template-columns: 18px 1fr;
  }
  .task-line small {
    grid-column: 2;
  }
  .roadmap,
  .pillars,
  .case-facts,
  .two-notes {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .roadmap-item {
    padding-top: 23px;
  }
  .device-cell {
    padding: 25px 17px;
  }
  .device-cell h3 {
    font-size: 16px;
  }
  .device-cell .status {
    font-size: 10px;
  }
  .hardware-scene {
    min-height: 420px;
  }
  .hardware-object {
    width: 190px;
    height: 255px;
  }
  .hardware-screen {
    height: 172px;
  }
  .hardware-screen img {
    width: 160px;
    height: 160px;
  }
  .speaker-grill {
    margin-top: 17px;
  }
  .hardware-note {
    bottom: 42px;
    font-size: 11px;
  }
  .metric-band {
    grid-template-columns: 1fr;
  }
  .metric-band > div {
    padding: 20px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .metric-band strong {
    display: inline-block;
    min-width: 115px;
    margin-bottom: 0;
  }
  .metric-band span {
    display: inline;
  }
  .blueprint {
    padding: 19px;
  }
  .blueprint-node {
    padding: 16px 12px;
  }
  .blueprint-pair {
    gap: 10px;
  }
  .editorial {
    gap: 25px;
  }
  .editorial h2 {
    font-size: 28px;
  }
  .editorial-body > p {
    font-size: 15px;
  }
  .case {
    padding-block: 50px;
  }
  .case-visual {
    padding: 20px 16px;
  }
  .proof-row {
    grid-template-columns: 1fr;
    gap: 5px;
  }
  .flow-horizontal {
    gap: 5px;
  }
  .flow-horizontal > div {
    font-size: 12px;
    padding-inline: 5px;
  }
  .state-row {
    grid-template-columns: 1fr 1.3fr;
    font-size: 11px;
  }
  .state-row span:last-child {
    grid-column: 2;
  }
  .architecture summary {
    padding: 20px 17px;
    gap: 12px;
  }
  .architecture summary h3 {
    font-size: 16px;
  }
  .architecture .layer-content {
    padding: 0 20px 22px;
    font-size: 13px;
  }
  .system-flow {
    gap: 26px 20px;
  }
  .system-flow h3 {
    font-size: 17px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}
@media print {
  :root,
  .brief {
    --bg: white;
    --ink: #182b22;
    --muted: #44544a;
    --line: #bbb;
    --accent: #204f37;
    color-scheme: light;
  }
  .site-header,
  .footer,
  .actions,
  .menu-button,
  .demo-controls,
  .subnav,
  .print-button {
    display: none !important;
  }
  .wrap {
    width: 100%;
  }
  .section,
  .brief .section,
  .case,
  .scenario,
  .page-intro,
  .brief .page-intro {
    padding-block: 25px;
  }
  .hero,
  .brief .hero {
    min-height: 0;
    padding-block: 20px;
  }
  .demo-step {
    display: block !important;
  }
  .case,
  .blueprint,
  .demo,
  details {
    break-inside: avoid;
  }
  h1 {
    font-size: 34px !important;
  }
  h2 {
    font-size: 25px !important;
  }
  .brief .hero,
  .case-top {
    gap: 30px;
  }
}