:root {
  color-scheme: light;
  --page: #ffffff;
  --surface: #ffffff;
  --surface-soft: #f7f7f7;
  --ink: #171717;
  --ink-soft: #666666;
  --ink-faint: #6f6f6f;
  --line: #ebebeb;
  --line-strong: #dedede;
  --accent: #171717;
  --accent-dark: #000000;
  --accent-soft: #f2f2f2;
  --dark: #f6f6f6;
  --dark-soft: #686868;
  --radius: 16px;
  --shell: min(1248px, calc(100% - 48px));
  --header-height: 72px;
  --motion-ease: cubic-bezier(.22, 1, .36, 1);
  --motion-ease-soft: cubic-bezier(.28, .44, .49, 1);
  font-family: "Geist", "Geist Sans", "SF Pro Text", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 22px);
  background: var(--page);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

img {
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button,
input,
textarea,
select {
  font: inherit;
}

:focus-visible {
  outline: 2px solid rgba(23, 23, 23, .42);
  outline-offset: 3px;
}

::selection {
  color: #ffffff;
  background: var(--ink);
}

.hero-line,
.copy-line {
  display: block;
}

.no-break {
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: #ffffff;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.section {
  width: var(--shell);
  margin: 0 auto;
  padding: 104px 0;
}

.section-rule {
  border-top: 1px solid var(--line);
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  background: rgba(255, 255, 255, .88);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  backdrop-filter: blur(14px) saturate(1.2);
  transition: border-color 300ms var(--motion-ease-soft), background 300ms var(--motion-ease-soft), box-shadow 300ms var(--motion-ease-soft);
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 8px 28px rgba(0, 0, 0, .035);
}

.nav-shell {
  width: var(--shell);
  height: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 11px;
  width: max-content;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -.02em;
}

.brand img {
  display: block;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 4px;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 450;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 300ms var(--motion-ease);
}

.site-nav a:hover {
  color: var(--ink);
}

.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left center;
}

.nav-download {
  justify-self: end;
}

.menu-toggle {
  display: none;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  transition: background 300ms var(--motion-ease), border-color 300ms var(--motion-ease), color 300ms var(--motion-ease), transform 300ms var(--motion-ease), box-shadow 300ms var(--motion-ease);
}

.button:hover {
  transform: translateY(-2px);
}

.button > span:last-child {
  transition: transform 300ms var(--motion-ease);
}

.button:hover > span:last-child {
  transform: translateX(3px);
}

.button-dark {
  min-height: 40px;
  padding: 9px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: #ffffff;
}

.button-dark:hover,
.button-accent:hover {
  background: #303030;
}

.button-accent {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .12);
}

.button-quiet {
  border-color: var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(0, 0, 0, .03);
}

.button-quiet:hover {
  border-color: #c5c5c5;
  background: var(--surface-soft);
}

.hero {
  padding-top: 168px;
  padding-bottom: 112px;
}

.hero-copy {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  text-align: center;
}

.eyebrow,
.section-label {
  margin: 0 0 20px;
  color: var(--ink-faint);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .06em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-soft);
  box-shadow: 0 1px 2px rgba(0, 0, 0, .025);
}

.eyebrow-divider {
  color: var(--line-strong);
}

.eyebrow strong {
  color: var(--ink);
  font-weight: 600;
}

.status-dot,
.pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ink);
}

.hero h1 {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  text-align: center;
  font-size: clamp(52px, 5vw, 70px);
  font-weight: 500;
  line-height: 1.14;
  letter-spacing: -.018em;
  text-wrap: balance;
}

.hero h1 span {
  color: inherit;
  font-weight: inherit;
  opacity: 1;
  text-align: center;
}

.hero h1 .hero-line {
  display: table;
  position: relative;
  width: auto;
  margin-inline: auto;
}

.hero h1 .hero-line-punctuation {
  position: absolute;
  left: 100%;
  top: 0;
}

.hero-intro {
  width: 100%;
  max-width: 1100px;
  margin: 30px auto 0;
  color: var(--ink-soft);
  text-align: center;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0;
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.hero-note {
  margin: 18px 0 0;
  color: var(--ink-faint);
  font-size: 12px;
}

.hero-note span {
  margin: 0 6px;
  color: var(--line-strong);
}

.product-stage {
  position: relative;
  margin: 72px 0 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  overflow: visible;
}

.stage-bar {
  height: 42px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
  background: #fbfbfb;
  color: var(--ink-faint);
  font-size: 11px;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dots i {
  width: 8px;
  height: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}

.stage-status {
  display: inline-flex;
  align-items: center;
  justify-self: end;
  gap: 7px;
}

.stage-status i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #36a269;
  animation: saved-status-breathe 2.8s ease-in-out infinite;
}

@keyframes saved-status-breathe {
  0%, 100% { opacity: .72; box-shadow: 0 0 0 0 rgba(54, 162, 105, .16); }
  50% { opacity: 1; box-shadow: 0 0 0 5px transparent; }
}

.product-stage img {
  display: block;
  width: 100%;
  height: auto;
  transform: none;
}

.product-stage figcaption {
  position: static;
  min-height: 42px;
  display: flex;
  align-items: center;
  padding: 9px 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink-faint);
  font-size: 14px;
  line-height: 1.55;
}

.section-head {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
  align-items: end;
  margin-bottom: 72px;
}

.section-head .section-label {
  grid-column: 1 / 4;
  align-self: start;
  margin-top: 10px;
}

.section-head h2 {
  grid-column: 4 / 10;
  margin: 0;
  max-width: 760px;
  font-size: clamp(40px, 3.8vw, 54px);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -.018em;
  text-wrap: balance;
}

.section-head > p:last-child {
  grid-column: 10 / 13;
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.75;
  text-wrap: pretty;
}

.section-head.compact h2 {
  grid-column: 4 / 11;
}

.workflow .section-head {
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  column-gap: 64px;
  row-gap: 12px;
  align-items: start;
}

.workflow .section-head .section-label {
  grid-column: 1;
  grid-row: 1;
  margin: 0;
}

.workflow .section-head h2 {
  grid-column: 1;
  grid-row: 2;
  font-size: clamp(38px, 3.2vw, 48px);
}

.workflow .section-head > p:last-child {
  grid-column: 2;
  grid-row: 2;
  max-width: 470px;
  align-self: start;
  justify-self: end;
}

.workflow-track {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.workflow-track li {
  min-height: 148px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 20px;
  border-radius: 16px;
  background: #f6f6f6;
  text-align: center;
}

.workflow-track span {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #e5e5e5;
  color: var(--ink-soft);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
}

.workflow-track strong {
  max-width: 120px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.45;
}

.product-stories {
  padding-top: 64px;
  padding-bottom: 40px;
}

.story {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
  align-items: start;
  padding: 88px 0;
  border-top: 1px solid var(--line);
}

.story-copy {
  grid-column: 1 / 6;
}

.story-media {
  grid-column: 6 / 13;
}

.story-reverse .story-copy {
  grid-column: 8 / 13;
  grid-row: 1;
}

.story-reverse .story-media {
  grid-column: 1 / 8;
  grid-row: 1;
}

@media (min-width: 1101px) {
  .story:last-child .story-copy {
    grid-column: 1 / 7;
  }

  .story:last-child .story-media {
    grid-column: 7 / 13;
  }

  .story-media img {
    width: 104%;
    max-width: none;
    margin-left: -2%;
  }

  .story:last-child h2 {
    max-width: none;
  }
}

@media (min-width: 1400px) {
  .story-media img {
    width: 110%;
    margin-left: -5%;
  }
}

@media (min-width: 1500px) {
  .story:last-child .story-media img {
    width: 114%;
    margin-left: -7%;
  }
}

.story h2 {
  margin: 0;
  max-width: 560px;
  font-size: clamp(40px, 3.8vw, 54px);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -.018em;
  text-wrap: balance;
}

.story-copy > p:not(.section-label):not(.fine-print) {
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.75;
  text-wrap: pretty;
}

.story-copy > p.handoff-description {
  font-size: 14px;
}

.check-list {
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 8px 0 8px 26px;
  color: #383838;
  font-size: 14px;
  line-height: 1.6;
  text-align: left;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  top: 50%;
  left: 0;
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--ink);
  color: #ffffff;
  font-size: 9px;
  font-weight: 700;
  line-height: 1;
  transform: translateY(-50%);
}

.fine-print {
  margin: 18px 0 0;
  color: var(--ink-faint);
  font-size: 14px;
  line-height: 1.7;
  text-wrap: pretty;
}

.story-media {
  position: relative;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  overflow: visible;
  box-shadow: none;
}

.story-media::before {
  content: none;
}

.story-media::after {
  content: none;
}

.story-media img {
  display: block;
  width: 100%;
  height: auto;
  transform: none;
}

.story-media figcaption {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 0;
  border: 0;
  color: var(--ink-faint);
  font-size: 14px;
  line-height: 1.55;
}

.pulse {
  flex: 0 0 auto;
  animation: status-pulse 1.8s ease-out infinite;
}

@keyframes status-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(23, 23, 23, .2); }
  50% { opacity: .7; box-shadow: 0 0 0 5px transparent; }
}

.capabilities {
  padding-bottom: 112px;
}

.capabilities .section-head.compact,
.platforms .section-head.compact {
  display: block;
  text-align: center;
}

.capabilities .section-head.compact .section-label,
.platforms .section-head.compact .section-label {
  margin: 0 0 20px;
  text-align: center;
}

.capabilities .section-head.compact h2,
.platforms .section-head.compact h2 {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
}

.optical-center-line {
  display: block;
  position: relative;
  left: 50%;
  width: max-content;
  max-width: 100%;
  transform: translateX(-50%);
}

.hanging-punctuation {
  position: absolute;
  left: 100%;
  top: 0;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.capability-card {
  min-height: 172px;
  padding: 24px;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .025), 0 8px 28px rgba(0, 0, 0, .035);
  text-align: left;
  transition: transform 360ms var(--motion-ease), box-shadow 360ms var(--motion-ease), background 360ms var(--motion-ease);
}

.capability-card:hover {
  box-shadow: 0 2px 4px rgba(0, 0, 0, .035), 0 14px 36px rgba(0, 0, 0, .055);
  transform: translateY(-4px);
}

.capability-card h3 {
  margin: 24px 0 8px;
  font-size: 17px;
  font-weight: 600;
}

.capability-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.65;
  text-wrap: balance;
}

.line-icon {
  position: relative;
  width: 30px;
  height: 30px;
  display: block;
  color: var(--ink);
  border: 0;
  border-radius: 9px;
  background: var(--surface-soft);
  margin: 0;
  transition: transform 360ms var(--motion-ease), background 360ms var(--motion-ease);
}

.capability-card:hover .line-icon {
  background: #f1f1f1;
  transform: translateY(-2px);
}

.line-icon::before,
.line-icon::after {
  content: "";
  position: absolute;
}

.icon-scan::before { inset: 6px; border: 1px solid currentColor; border-radius: 3px; }
.icon-scan::after { right: -3px; bottom: 4px; width: 9px; height: 1px; background: currentColor; transform: rotate(-45deg); }
.icon-group::before { top: 7px; left: 7px; width: 5px; height: 5px; box-shadow: 10px 0 0 currentColor, 0 10px 0 currentColor, 10px 10px 0 currentColor; background: currentColor; }
.icon-prompt::before { inset: 6px 5px 8px; border: 1px solid currentColor; border-radius: 3px; }
.icon-prompt::after { left: 9px; bottom: 5px; width: 5px; height: 5px; border-bottom: 1px solid currentColor; border-left: 1px solid currentColor; transform: skewY(-35deg); }
.icon-version::before { top: 6px; left: 7px; width: 12px; height: 12px; border: 1px solid currentColor; border-radius: 3px; box-shadow: 4px 4px 0 -1px var(--page), 4px 4px 0 0 currentColor; }
.icon-review::before { top: 8px; left: 6px; width: 16px; height: 10px; border: 1px solid currentColor; border-radius: 50%; }
.icon-review::after { top: 11px; left: 11px; width: 6px; height: 6px; border: 1px solid currentColor; border-radius: 50%; }
.icon-scene::before { top: 7px; left: 7px; width: 16px; height: 13px; border: 1px solid currentColor; border-radius: 2px; }
.icon-scene::after { top: 11px; left: 10px; width: 10px; height: 1px; background: currentColor; box-shadow: 0 4px 0 currentColor; }
.icon-handoff::before { top: 8px; left: 8px; width: 12px; height: 14px; border: 1px solid currentColor; border-radius: 2px; }
.icon-handoff::after { top: 4px; right: 5px; width: 8px; height: 8px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; }
.icon-export::before { bottom: 6px; left: 7px; width: 14px; height: 8px; border: 1px solid currentColor; border-top: 0; border-radius: 0 0 2px 2px; }
.icon-export::after { top: 6px; left: 13px; width: 5px; height: 9px; border-top: 1px solid currentColor; border-left: 1px solid currentColor; transform: rotate(45deg); }

.security {
  width: 100%;
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
  gap: 100px;
  align-items: end;
  padding: 104px max(24px, calc((100vw - 1248px) / 2));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--dark);
  color: var(--ink);
}

.security .section-label {
  color: var(--ink-faint);
}

.security h2 {
  margin: 0;
  max-width: 600px;
  font-size: clamp(40px, 3.8vw, 54px);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -.018em;
  text-wrap: balance;
}

.security-intro > p:last-child {
  max-width: 420px;
  margin: 26px 0 0;
  color: var(--dark-soft);
  font-size: 16px;
  line-height: 1.75;
  text-wrap: pretty;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.security-grid article {
  min-height: 200px;
  padding: 24px;
  border-radius: 16px;
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 1px 2px rgba(0, 0, 0, .025), 0 8px 28px rgba(0, 0, 0, .025);
  text-align: left;
}

.security-grid > article > span {
  color: var(--ink-faint);
  font-size: 11px;
}

.security-grid h3 {
  margin: 44px 0 9px;
  font-size: 18px;
  font-weight: 600;
}

.security-grid p {
  margin: 0;
  color: var(--dark-soft);
  font-size: 15px;
  line-height: 1.65;
  text-wrap: balance;
}

.security-grid p span {
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.platforms {
  padding-bottom: 112px;
}

.platform-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.platform-list li {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: #f6f6f6;
  font-size: 18px;
  font-weight: 500;
  text-align: center;
  transition: background 360ms var(--motion-ease), box-shadow 360ms var(--motion-ease), transform 360ms var(--motion-ease);
}

.platform-list li:hover {
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .055);
  transform: translateY(-3px);
}

.download {
  padding-top: 28px;
}

.download-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 32px;
  align-items: end;
  padding: 64px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 18px 52px rgba(0, 0, 0, .045);
}

.download h2 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(40px, 3.8vw, 54px);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -.018em;
  text-wrap: balance;
}

.download-actions {
  display: grid;
  grid-template-columns: repeat(3, max-content);
  gap: 8px;
  margin-top: 32px;
}

.download-actions .button {
  gap: 11px;
  padding-right: 13px;
  padding-left: 13px;
  white-space: nowrap;
}

.download-actions .download-tutorial {
  grid-column: 1;
  grid-row: 2;
  justify-self: start;
}

.release-facts {
  margin: 0;
  display: grid;
  gap: 8px;
}

.release-facts div {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 11px 13px;
  border-radius: 10px;
  background: var(--surface-soft);
  font-size: 14px;
}

.release-facts dt {
  flex: 0 0 auto;
  color: var(--ink-faint);
}

.release-facts dd {
  margin: 0;
  text-align: right;
  font-weight: 500;
  white-space: nowrap;
}

.download-footnote {
  margin: 14px 0 0;
  color: var(--ink-faint);
  text-align: center;
  font-size: 14px;
  line-height: 1.65;
}

.site-footer {
  padding: 72px max(24px, calc((100vw - 1248px) / 2)) 28px;
  border-top: 1px solid var(--line);
  background: #f7f7f7;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  padding-bottom: 70px;
}

.footer-brand p {
  max-width: 260px;
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.footer-grid > div:not(.footer-brand) {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  color: var(--ink-soft);
  font-size: 13px;
}

.footer-grid h2 {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 600;
}

.footer-grid a:hover {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 22px;
  border-top: 1px solid var(--line-strong);
  color: var(--ink-faint);
  font-size: 11px;
}

.motion-ready .reveal {
  opacity: 0;
  filter: blur(5px);
  transform: translate3d(0, 38px, 0) scale(.985);
  will-change: opacity, transform, filter;
}

.motion-ready .reveal.is-visible {
  opacity: 1;
  filter: blur(0);
  transform: translate3d(0, 0, 0) scale(1);
  transition:
    opacity 760ms var(--motion-ease) var(--reveal-delay, 0ms),
    transform 860ms var(--motion-ease) var(--reveal-delay, 0ms),
    filter 680ms var(--motion-ease) var(--reveal-delay, 0ms);
}

.motion-ready .hero-copy > * {
  opacity: 0;
  filter: blur(5px);
  transform: translate3d(0, 34px, 0) scale(.975);
}

.motion-ready .hero-copy.is-visible > * {
  animation: hero-content-enter 920ms var(--motion-ease) both;
}

.motion-ready .hero-copy.is-visible > :nth-child(1) { animation-delay: 70ms; }
.motion-ready .hero-copy.is-visible > :nth-child(2) { animation-delay: 170ms; }
.motion-ready .hero-copy.is-visible > :nth-child(3) { animation-delay: 280ms; }
.motion-ready .hero-copy.is-visible > :nth-child(4) { animation-delay: 390ms; }
.motion-ready .hero-copy.is-visible > :nth-child(5) { animation-delay: 500ms; }

@keyframes hero-content-enter {
  to {
    opacity: 1;
    filter: blur(0);
    transform: translate3d(0, 0, 0) scale(1);
  }
}

.motion-ready .product-stage.reveal {
  filter: blur(6px);
  transform: translate3d(0, 58px, 0) scale(.945);
}

.motion-ready .product-stage.reveal.is-visible {
  filter: blur(0);
  transform: translate3d(0, 0, 0) scale(1);
  transition:
    opacity 820ms var(--motion-ease) var(--reveal-delay, 0ms),
    transform 980ms var(--motion-ease) var(--reveal-delay, 0ms),
    filter 760ms var(--motion-ease) var(--reveal-delay, 0ms);
}

.motion-ready .section-head.reveal > * {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition:
    opacity 620ms var(--motion-ease),
    transform 760ms var(--motion-ease);
}

.motion-ready .section-head.reveal.is-visible > * {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.motion-ready .section-head.reveal.is-visible > :nth-child(1) { transition-delay: 60ms; }
.motion-ready .section-head.reveal.is-visible > :nth-child(2) { transition-delay: 150ms; }
.motion-ready .section-head.reveal.is-visible > :nth-child(3) { transition-delay: 250ms; }

.motion-ready .workflow-track.reveal li {
  opacity: 0;
  clip-path: inset(0 0 100% 0 round 16px);
  scale: .94;
  transition:
    opacity 520ms var(--motion-ease),
    clip-path 760ms var(--motion-ease),
    scale 760ms var(--motion-ease);
}

.motion-ready .workflow-track.reveal.is-visible li {
  opacity: 1;
  clip-path: inset(0 0 0 0 round 16px);
  scale: 1;
}

.motion-ready .workflow-track.reveal.is-visible li:nth-child(1) { transition-delay: 80ms; }
.motion-ready .workflow-track.reveal.is-visible li:nth-child(2) { transition-delay: 170ms; }
.motion-ready .workflow-track.reveal.is-visible li:nth-child(3) { transition-delay: 260ms; }
.motion-ready .workflow-track.reveal.is-visible li:nth-child(4) { transition-delay: 350ms; }
.motion-ready .workflow-track.reveal.is-visible li:nth-child(5) { transition-delay: 440ms; }
.motion-ready .workflow-track.reveal.is-visible li:nth-child(6) { transition-delay: 530ms; }

.motion-ready .platform-list.reveal li {
  opacity: 0;
  translate: 0 34px;
  scale: .94;
  transition:
    opacity 520ms var(--motion-ease),
    translate 760ms var(--motion-ease),
    scale 760ms var(--motion-ease),
    background 360ms var(--motion-ease),
    box-shadow 360ms var(--motion-ease),
    transform 360ms var(--motion-ease);
}

.motion-ready .platform-list.reveal.is-visible li {
  opacity: 1;
  translate: 0 0;
  scale: 1;
}

.motion-ready .platform-list.reveal.is-visible li:nth-child(1) { transition-delay: 70ms; }
.motion-ready .platform-list.reveal.is-visible li:nth-child(2) { transition-delay: 170ms; }
.motion-ready .platform-list.reveal.is-visible li:nth-child(3) { transition-delay: 270ms; }
.motion-ready .platform-list.reveal.is-visible li:nth-child(4) { transition-delay: 370ms; }

@media (min-width: 861px) {
  .motion-ready .story.reveal,
  .motion-ready .story.reveal.is-visible {
    opacity: 1;
    filter: none;
    transform: none;
    transition: none;
  }

  .motion-ready .story.reveal .story-copy,
  .motion-ready .story.reveal .story-media {
    opacity: 0;
    filter: blur(5px);
    will-change: opacity, transform, filter;
  }

  .motion-ready .story.reveal .story-copy {
    transform: translate3d(-72px, 18px, 0);
  }

  .motion-ready .story.reveal .story-media {
    transform: translate3d(84px, 0, 0) scale(.95);
  }

  .motion-ready .story-reverse.reveal .story-copy {
    transform: translate3d(72px, 18px, 0);
  }

  .motion-ready .story-reverse.reveal .story-media {
    transform: translate3d(-84px, 0, 0) scale(.95);
  }

  .motion-ready .story.reveal.is-visible .story-copy,
  .motion-ready .story.reveal.is-visible .story-media {
    opacity: 1;
    filter: blur(0);
    transform: translate3d(0, 0, 0) scale(1);
  }

  .motion-ready .story.reveal.is-visible .story-copy {
    transition:
      opacity 700ms var(--motion-ease) 40ms,
      transform 900ms var(--motion-ease) 40ms,
      filter 620ms var(--motion-ease) 40ms;
  }

  .motion-ready .story.reveal.is-visible .story-media {
    transition:
      opacity 760ms var(--motion-ease) 170ms,
      transform 1020ms var(--motion-ease) 170ms,
      filter 700ms var(--motion-ease) 170ms;
  }
}

/* 法律页面 */
.legal-page {
  padding-top: var(--header-height);
}

.legal-page .site-header {
  border-color: var(--line);
}

.legal-main {
  width: min(780px, calc(100% - 48px));
  margin: 0 auto;
  padding: 92px 0 120px;
}

.legal-main article {
  padding: 48px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: 0 16px 44px rgba(0, 0, 0, .035);
}

.legal-main h1 {
  margin: 0;
  font-size: clamp(38px, 5vw, 54px);
  font-weight: 480;
  line-height: 1.12;
  letter-spacing: -.045em;
}

.legal-main h2 {
  margin: 40px 0 12px;
  font-size: 20px;
  font-weight: 560;
}

.legal-main p,
.legal-main li {
  color: var(--ink-soft);
}

.legal-main a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.legal-main .updated {
  margin: 10px 0 32px;
  color: var(--ink-faint);
  font-size: 13px;
}

@media (max-width: 1100px) {
  :root { --shell: min(100% - 40px, 1248px); }

  .nav-shell { gap: 20px; }
  .site-nav { gap: 20px; }

  .section-head {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }

  .section-head .section-label { grid-column: 1 / 3; }
  .section-head h2,
  .section-head.compact h2 { grid-column: 3 / 7; }
  .section-head > p:last-child { grid-column: 7 / 9; }

  .story-copy { grid-column: 1 / 6; }
  .story-media { grid-column: 6 / 13; }
  .story-reverse .story-copy { grid-column: 8 / 13; }
  .story-reverse .story-media { grid-column: 1 / 8; }

  .security { gap: 60px; }
  .download-panel {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 48px;
    padding: 48px;
  }

  .release-facts { max-width: 100%; }
}

@media (max-width: 860px) {
  :root {
    --header-height: 66px;
    --shell: min(100% - 32px, 1248px);
  }

  .section { padding: 80px 0; }

  .nav-shell {
    grid-template-columns: 1fr auto;
  }

  .nav-download { display: none; }
  .legal-page .nav-download { display: inline-flex; }

  .menu-toggle {
    width: 44px;
    height: 44px;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    justify-self: end;
    gap: 6px;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--surface);
  }

  .menu-toggle span {
    width: 17px;
    height: 1px;
    background: var(--ink);
    transition: transform 180ms ease-out;
  }

  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

  .site-nav {
    position: fixed;
    z-index: 99;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 14px 16px 24px;
    border-bottom: 1px solid var(--line);
    background: var(--page);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-14px);
    visibility: hidden;
    transition: opacity 280ms var(--motion-ease), transform 360ms var(--motion-ease), visibility 0s linear 360ms;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    visibility: visible;
    transition-delay: 0s;
  }

  .site-nav a {
    min-height: 52px;
    display: flex;
    align-items: center;
    padding: 0 4px;
    border-bottom: 1px solid var(--line);
  }

  .site-nav a::after { display: none; }

  .hero { padding-top: 138px; padding-bottom: 80px; }
  .hero h1 { font-size: clamp(42px, 7vw, 56px); line-height: 1.14; }
  .product-stage { margin-top: 56px; }

  .section-head,
  .workflow .section-head {
    display: block;
    margin-bottom: 50px;
  }

  .section-head h2 { max-width: 680px; }
  .section-head > p:last-child,
  .workflow .section-head > p:last-child {
    max-width: 580px;
    margin-top: 24px;
  }

  .workflow-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .story,
  .story-reverse {
    grid-template-columns: 1fr;
    gap: 42px;
    padding: 72px 0;
  }

  .story-copy,
  .story-media,
  .story-reverse .story-copy,
  .story-reverse .story-media {
    grid-column: 1;
  }

  .story-copy,
  .story-reverse .story-copy { grid-row: 1; }
  .story-media,
  .story-reverse .story-media { grid-row: 2; }

  .story-copy { max-width: 580px; }

  .capability-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .security {
    grid-template-columns: 1fr;
    gap: 64px;
    padding: 80px 24px;
  }

  .security-intro,
  .security-grid { width: min(100%, 680px); margin: 0 auto; }

  .platform-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .download-panel {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .release-facts { max-width: 560px; }
}

@media (max-width: 560px) {
  :root { --shell: calc(100% - 28px); }

  body { font-size: 15px; }
  .section { padding: 72px 0; }

  .hero { padding-top: 116px; padding-bottom: 72px; }
  .eyebrow { margin-bottom: 18px; }
  .hero h1 { font-size: clamp(38px, 10.5vw, 44px); line-height: 1.15; }
  .hero h1 .hero-line { display: block; }
  .hero h1 .hero-line-punctuation { position: static; }
  .optical-center-line {
    left: auto;
    width: auto;
    max-width: none;
    transform: none;
  }
  .hanging-punctuation { position: static; }
  .hero-intro { margin-top: 24px; font-size: 16px; line-height: 1.75; }

  .hero-actions {
    flex-direction: column;
  }

  .download-actions {
    grid-template-columns: 1fr;
  }

  .download-actions .download-tutorial {
    grid-column: auto;
    grid-row: auto;
    justify-self: stretch;
  }

  .hero-actions .button,
  .download-actions .button { width: 100%; min-height: 50px; }

  .hero-note { line-height: 1.6; }

  .product-stage {
    height: auto;
    margin-top: 44px;
  }

  .product-stage img {
    width: 100%;
    max-width: 100%;
    height: auto;
    object-fit: contain;
  }

  .section-head h2,
  .story h2,
  .security h2,
  .download h2 {
    font-size: clamp(32px, 8.5vw, 38px);
    line-height: 1.15;
  }

  .section-head.compact,
  .section-head.compact .section-label,
  .section-head.compact h2 {
    text-align: center;
  }

  .workflow-track {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .workflow-track li,
  .workflow-track li:not(:first-child) {
    min-height: 82px;
    display: grid;
    grid-template-columns: 44px 1fr;
    align-items: center;
    justify-content: stretch;
    gap: 0;
    padding: 18px;
    text-align: left;
  }

  .workflow-track strong { max-width: none; }

  .product-stories { padding-top: 24px; }
  .story,
  .story-reverse { padding: 66px 0; gap: 34px; }

  .story-media {
    height: auto;
  }

  .story-media img {
    width: 100%;
    max-width: 100%;
    height: auto;
    object-fit: contain;
  }

  .capability-grid { grid-template-columns: 1fr; }
  .capability-card { min-height: 190px; }

  .security { padding: 72px 20px; }

  .security-intro {
    text-align: center;
  }

  .security-intro > p:last-child {
    margin-right: auto;
    margin-left: auto;
  }

  .security-grid { grid-template-columns: 1fr; }
  .security-grid article,
  .security-grid article:not(:first-child) {
    min-height: 0;
    padding: 24px;
  }

  .security-grid h3 { margin: 34px 0 8px; }

  .platform-list { grid-template-columns: 1fr 1fr; }
  .platform-list li { min-height: 78px; font-size: 16px; }

  .download-panel { gap: 48px; padding: 30px 22px; border-radius: 16px; }
  .release-facts div { gap: 14px; }

  .site-footer { padding-top: 54px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 42px 28px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; gap: 5px; }

  .legal-main { width: calc(100% - 28px); padding: 54px 0 80px; }
  .legal-main article { padding: 28px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  .motion-ready .reveal {
    opacity: 1;
    filter: none;
    transform: none;
  }

  .motion-ready .hero-copy > * {
    opacity: 1;
    filter: none;
    transform: none;
  }

  .motion-ready .section-head.reveal > *,
  .motion-ready .workflow-track.reveal li,
  .motion-ready .platform-list.reveal li,
  .motion-ready .story.reveal .story-copy,
  .motion-ready .story.reveal .story-media {
    opacity: 1;
    filter: none;
    clip-path: none;
    scale: 1;
    translate: none;
    transform: none;
  }

  .product-stage img,
  .story-media img {
    transform: none;
  }

  .workflow-track li,
  .workflow-track span {
    animation: none;
  }
}