:root {
  color-scheme:light;
  --ink:#171c31;
  --muted:#60677b;
  --blue:#4949d7;
  --line:#e2e5ee;
  --paper:#fafbff;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:var(--paper);
  font-synthesis:none
}
* {
  box-sizing:border-box
}
html {
  scroll-behavior:smooth;
  scroll-padding-top:28px
}
body {
  margin:0
}
a {
  color:inherit;
  text-decoration:none
}
button {
  font:inherit
}
img {
  max-width:100%;
  height:auto
}
h1,h2,h3,p {
  margin:0
}
[hidden] {
  display:none!important
}
html:lang(zh-CN) [lang=en],html:lang(en) [lang=zh-CN] {
  display:none
}
a,button {
  -webkit-tap-highlight-color:transparent
}
a:focus-visible,button:focus-visible {
  outline:3px solid #6667e9;
  outline-offset:5px
}
a:hover {
  color:var(--blue)
}
.wrap {
  width:min(1160px,calc(100% - 96px));
  margin-inline:auto
}
.skip-link {
  position:absolute;
  top:-100px;
  left:20px;
  padding:12px;
  background:white;
  z-index:5
}
.skip-link:focus {
  top:10px
}
.header {
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:104px;
  gap:24px
}
.brand {
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:26px;
  font-weight:650;
  letter-spacing:-1px
}
.header nav {
  display:flex;
  align-items:center;
  gap:32px;
  font-size:14px
}
.languages {
  display:flex;
  gap:3px;
  padding:4px;
  border:1px solid var(--line);
  border-radius:30px
}
.languages button {
  border:0;
  background:none;
  color:var(--muted);
  padding:7px 12px;
  border-radius:20px;
  cursor:pointer;
  font-size:13px
}
.languages button[aria-pressed=true] {
  color:var(--ink);
  background:#e9ecf5
}
.hero {
  display:grid;
  grid-template-columns:1fr 1.12fr;
  align-items:center;
  min-height:610px;
  padding-block:38px 60px;
  gap:40px
}
.eyebrow {
  font-size:12px;
  font-weight:600;
  letter-spacing:1.7px;
  line-height:1.7
}
.hero .eyebrow {
  display:flex;
  align-items:center;
  gap:9px;
  color:#565d77
}
.status-dot {
  width:7px;
  height:7px;
  border-radius:50%;
  background:#7879e9
}
.hero h1 {
  font-size:clamp(42px,4.4vw,60px);
  line-height:1.22;
  font-weight:600;
  letter-spacing:-2.8px;
  margin:20px 0
}
.accent {
  color:var(--blue)
}
.intro {
  font-size:16px;
  line-height:1.9;
  color:var(--muted);
  max-width:475px;
  margin-bottom:24px
}
.hero-promise {
  font-size:23px;
  font-weight:550;
  line-height:1.55;
  margin-bottom:16px
}
.hero-downloads {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px
}
.hero-downloads .button {
  width:100%;
  gap:12px;
  padding:15px 16px;
  font-size:14px;
  min-height:52px
}
.hero-downloads small {
  display:block;
  margin-top:10px;
  font-size:11px;
  color:var(--muted)
}
.secondary {
  background:white;
  border:1px solid #d8ddec
}
.secondary:hover {
  background:#eceefa
}
.button {
  display:inline-flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:16px 23px;
  border-radius:9px;
  font-size:15px;
  font-weight:550;
  transition:background .18s,transform .18s,box-shadow .18s
}
.button:hover {
  transform:translateY(-2px)
}
.primary {
  background:var(--ink);
  color:white;
  box-shadow:0 4px 10px #151b3015
}
.primary:hover {
  background:var(--blue);
  color:white
}
.platform {
  font-size:12px;
  color:var(--muted);
  margin-top:18px;
  line-height:1.8
}
.hero-preview img {
  display:block;
  width:100%;
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:0 22px 60px #292c6012,0 3px 10px #292c6006
}
.hero-preview {
  position:relative;
  isolation:isolate;
  min-width:0
}
.hero-particles {
  position:absolute;
  inset:-64px -18px;
  z-index:-1;
  overflow:hidden;
  pointer-events:none
}
.hero-particles span {
  position:absolute;
  width:var(--size);
  height:var(--size);
  border-radius:50%;
  background:#8185e9;
  box-shadow:0 0 14px 3px #8b7fec35;
  opacity:.45;
  animation:particle-drift var(--duration) ease-in-out var(--delay) infinite alternate
}
.hero-particles span:nth-child(3n) { background:#77bfed }
.hero-particles.is-paused span { animation-play-state:paused }
@keyframes particle-drift {
  from { transform:translate3d(0,8px,0); opacity:.25 }
  to { transform:translate3d(var(--drift),-12px,0); opacity:.6 }
}
@keyframes hero-enter {
  from { opacity:.65; transform:translateY(8px) }
  to { opacity:1; transform:translateY(0) }
}
@media(prefers-reduced-motion:no-preference) {
  .hero-copy>h1 { animation:hero-enter .38s ease-out both }
  .hero-promise,.hero-copy>.intro { animation:hero-enter .38s .06s ease-out both }
  .hero-downloads { animation:hero-enter .38s .12s ease-out both }
  .hero-preview { animation:hero-enter .45s ease-out both }
}
.hero-preview img { transition:transform .25s ease,box-shadow .25s ease }
.header nav>a {
  text-decoration:underline;
  text-decoration-color:transparent;
  text-underline-offset:6px;
  transition:text-decoration-color .18s
}
.header nav>a:hover { text-decoration-color:currentColor }
@media(hover:hover) and (pointer:fine) {
  .hero-preview img:hover {
    transform:translateY(-3px);
    box-shadow:0 28px 65px #292c601c,0 3px 10px #292c6006
  }
  .button:hover { box-shadow:0 8px 20px #292c6024 }
}
.hero-preview p {
  margin-top:20px;
  text-align:center;
  font-size:12px;
  line-height:1.8;
  color:var(--muted)
}
.foundation {
  border-block:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:24px;
  padding-block:23px;
  font-size:14px;
  color:var(--muted)
}
.foundation a {
  color:var(--ink)
}
.foundation a:hover {
  color:var(--blue)
}
.features {
  display:grid;
  grid-template-columns:1fr 1.25fr;
  gap:80px;
  padding-block:104px
}
.task-story {
  border-block:1px solid var(--line);
  padding-block:56px
}
.task-story .eyebrow {
  color:var(--blue);
  margin-bottom:20px
}
.task-story>p:last-child {
  max-width:740px;
  margin-top:22px;
  line-height:1.9;
  color:var(--muted)
}
.start {
  display:grid;
  grid-template-columns:1fr 1.25fr;
  gap:80px;
  padding-block:72px
}
.start ul {
  list-style:none;
  padding:0;
  margin:0 0 20px
}
.start li {
  font-size:17px;
  line-height:1.7;
  margin-bottom:12px
}
.start li::before {
  content:'✓';
  color:var(--blue);
  margin-right:14px
}
.start p:not(.eyebrow) {
  line-height:1.8;
  color:var(--muted)
}
.section-heading .eyebrow {
  color:var(--blue);
  margin-bottom:23px
}
h2 {
  font-size:clamp(32px,3.3vw,44px);
  font-weight:550;
  line-height:1.35;
  letter-spacing:-1.5px
}
.feature-list article {
  display:flex;
  gap:27px;
  padding-bottom:28px
}
.feature-list article+article {
  border-top:1px solid var(--line);
  padding-top:28px
}
.feature-list article:last-child {
  padding-bottom:0
}
.feature-number {
  font-size:12px;
  color:var(--blue);
  font-variant-numeric:tabular-nums;
  padding-top:6px
}
h3 {
  font-size:20px;
  line-height:1.5;
  font-weight:550
}
.feature-list p {
  color:var(--muted);
  font-size:16px;
  line-height:1.85;
  margin-top:10px
}
.details {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:80px;
  padding-block:55px 80px
}
.details h3 {
  font-size:16px
}
.details p {
  font-size:14px;
  line-height:1.9;
  color:var(--muted);
  margin-top:13px
}
.footer {
  border-top:1px solid var(--line);
  padding-block:30px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px
}
.footer .brand {
  font-size:22px
}
.footer .footer-meta {
  margin:0;
  flex-basis:100%;
  text-align:center;
  font-size:12px;
  color:var(--muted)
}
.footer p,.copyright {
  font-size:12px;
  color:var(--muted)
}
.footer p a,.footer .footer-meta a {
  text-decoration:underline;
  text-underline-offset:4px
}
@media(max-width:900px) {
  .wrap {
    width:calc(100% - 48px)
  }
  .header nav {
    gap:20px
  }
  .hero {
    gap:32px;
    grid-template-columns:1fr;
    min-height:540px;
    padding-block:45px 60px
  }
  .hero h1 {
    font-size:48px
  }
  .hero-copy {
    max-width:560px
  }
  .intro {
    font-size:16px
  }
  .features,.start {
    gap:40px;
    padding-block:72px
  }
  .details {
    gap:40px
  }
}
@media(max-width:640px) {
  .hero-particles span:nth-child(n+9) { display:none }
  .hero-particles { inset:-26px -12px }
  .wrap {
    width:calc(100% - 40px)
  }
  .header {
    min-height:84px;
    gap:12px
  }
  .brand {
    font-size:23px
  }
  .header .brand img {
    width:34px
  }
  .header nav {
    gap:12px
  }
  .header nav>a:first-child {
    display:none
  }
  .header nav>a {
    font-size:13px
  }
  .languages button {
    padding:7px 8px;
    font-size:12px
  }
  .hero {
    grid-template-columns:1fr;
    padding-block:24px 35px;
    gap:24px
  }
  .hero h1 {
    font-size:42px;
    letter-spacing:-2px;
    line-height:1.24
  }
  .hero .eyebrow {
    font-size:10px;
    letter-spacing:1.3px
  }
  .intro {
    max-width:440px;
    font-size:15px;
    line-height:1.8
  }
  .hero-promise {
    font-size:20px
  }
  .hero-downloads .button {
    padding:13px 12px;
    font-size:13px;
    gap:6px;
    min-height:62px
  }
  .hero-downloads small {
    font-size:10px
  }
  .foundation {
    flex-direction:column;
    gap:12px;
    font-size:13px
  }
  .features,.start {
    grid-template-columns:1fr;
    gap:35px;
    padding-block:58px
  }
  html:lang(zh-CN) .section-heading h2 br {
    display:none
  }
  .feature-list article {
    gap:20px
  }
  .details {
    grid-template-columns:1fr;
    gap:28px;
    padding-block:38px 48px
  }
  .footer {
    flex-wrap:wrap;
    gap:18px
  }
  .footer p {
    order:3;
    flex-basis:100%
  }
  h3 {
    font-size:19px
  }
}
@media(prefers-reduced-motion:reduce) {
  .hero-particles { display:none }
  .hero-preview img,.header nav>a { transition:none }
  .hero-preview img:hover { transform:none }
  html {
    scroll-behavior:auto
  }
  .button {
    transition:none
  }
  .button:hover {
    transform:none
  }
}