@charset "UTF-8";
:root {
  --ink: #12233d;
  --muted: #607087;
  --blue: #2563eb;
  --blue-deep: #1d4ed8;
  --navy: #0a1d3a;
  --line: #e0e7f0;
  --pale: #f3f6fb;
  --teal: #97ddcf;
  --white: #fff;
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "PingFang SC",
    "Microsoft YaHei",
    sans-serif;
  color: var(--ink);
  background: var(--white);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
  scroll-padding-top: 104px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
body {
  margin: 0;
  min-width: 320px;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
summary,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  font: inherit;
}
button,
a,
summary {
  touch-action: manipulation;
}
a,
button {
  overflow-wrap: anywhere;
}
button:not(:disabled),
summary {
  cursor: pointer;
}
button:disabled {
  cursor: default;
}
[hidden] {
  display: none !important;
}
::selection {
  background: #b8d1ff;
  color: #0a1d3a;
}
:focus-visible {
  outline: 3px solid #548dff;
  outline-offset: 5px;
}
figure,
p,
h1,
h2,
h3 {
  margin: 0;
}
ul,
ol {
  margin: 0;
  padding: 0;
}
.icon {
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
  width: 22px;
  height: 22px;
}
.container {
  width: min(1200px, calc(100% - 80px));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  top: 8px;
  left: 12px;
  z-index: 100;
  transform: translateY(-150%);
  padding: 12px 20px;
  background: var(--white);
  color: var(--ink);
  border: 2px solid var(--blue);
}
.skip-link:focus {
  transform: none;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(224, 231, 240, 0.7);
  backdrop-filter: blur(16px);
}
.header-inner {
  height: 88px;
  display: flex;
  align-items: center;
  gap: 38px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
  min-height: 44px;
}
.brand img {
  border-radius: 10px;
  width: 38px;
  height: 38px;
}
.brand > span {
  font-size: 13px;
  letter-spacing: 2px;
  font-weight: 750;
  line-height: 1.25;
}
.brand small {
  display: block;
  font-size: 9px;
  letter-spacing: 3.5px;
  font-weight: 550;
  margin-top: 5px;
  color: var(--muted);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: auto;
}
.site-nav > a {
  font-size: 13px;
  font-weight: 550;
  color: #4b5b73;
  min-height: 44px;
  display: flex;
  align-items: center;
  white-space: nowrap;
}
.site-nav > a:hover,
.site-nav > a[aria-current="page"] {
  color: var(--blue);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 17px;
  background: var(--blue);
  color: var(--white);
  border: 1px solid transparent;
  border-radius: 8px;
  min-height: 54px;
  padding: 14px 24px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  transition:
    background 0.2s,
    transform 0.2s;
}
.button:hover {
  background: var(--blue-deep);
  transform: translateY(-2px);
}
.button-small {
  min-height: 44px;
  padding: 11px 17px;
  font-size: 12px;
  gap: 15px;
}
.button-small .icon {
  width: 17px;
  height: 17px;
}
.button-white {
  background: var(--white);
  color: var(--navy);
}
.button-white:hover {
  background: #dce8ff;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  font-size: 14px;
  font-weight: 600;
  color: var(--blue);
  min-height: 44px;
}
.text-link .icon {
  width: 19px;
  height: 19px;
  transition: transform 0.2s;
}
.text-link:hover .icon {
  transform: translateX(4px);
}
.text-link-light {
  color: #e5edff;
}
.language-switch {
  position: relative;
  flex-shrink: 0;
}
.language-switch summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 7px;
  min-height: 44px;
  font-size: 12px;
  font-weight: 600;
}
.language-switch summary::-webkit-details-marker {
  display: none;
}
.language-switch summary > .icon:first-child {
  width: 17px;
  height: 17px;
}
.language-switch summary > .icon:last-child {
  width: 13px;
  height: 13px;
}
.language-options {
  position: absolute;
  right: 0;
  top: calc(100% + 12px);
  width: 170px;
  padding: 7px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 18px 44px #0a1d3a1a;
  z-index: 40;
}
.language-options a {
  padding: 12px;
  min-height: 44px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  border-radius: 5px;
}
.language-options a:hover,
.language-options a[aria-current="true"] {
  background: #edf3ff;
  color: var(--blue);
}
.language-options .icon {
  width: 16px;
  height: 16px;
}
.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  color: var(--ink);
  padding: 10px;
  min-height: 44px;
  min-width: 44px;
}
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--navy);
  color: var(--white);
}
.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  width: 920px;
  height: 920px;
  right: -180px;
  top: -40px;
  background: radial-gradient(
    ellipse,
    #205fbe66 0,
    #1b468c33 40%,
    transparent 70%
  );
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(#78a4f008 1px, transparent 1px),
    linear-gradient(90deg, #78a4f008 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: linear-gradient(90deg, transparent, #000);
  pointer-events: none;
  z-index: -1;
}
.hero-inner {
  min-height: 696px;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 34px;
  padding-top: 24px;
  padding-bottom: 24px;
}
.hero-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
  padding: 32px 0 40px;
}
.eyebrow {
  font-size: 11px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  font-weight: 650;
  line-height: 1.7;
  color: var(--blue);
  margin-bottom: 22px;
  overflow-wrap: anywhere;
}
.eyebrow-light {
  color: #9eb9e6;
}
.tiny-line {
  display: inline-block;
  width: 24px;
  height: 1px;
  background: currentColor;
  vertical-align: middle;
  margin-right: 10px;
}
.hero h1 {
  font-size: clamp(2.6rem, 5.7vw, 5.15rem);
  letter-spacing: -0.065em;
  line-height: 1.12;
  font-weight: 620;
  margin-bottom: 30px;
}
.hero h1 > span {
  color: #92baff;
}
html[lang="zh-CN"] .hero h1 {
  font-size: clamp(3.6rem, 6.9vw, 6rem);
  letter-spacing: -0.04em;
  line-height: 1.17;
}
html[lang="ru"] .hero h1 {
  font-size: clamp(2.1rem, 4.7vw, 4.25rem);
  letter-spacing: -0.055em;
}
.hero-description {
  max-width: 430px;
  font-size: 17px;
  line-height: 1.9;
  color: #bdcce2;
  overflow-wrap: anywhere;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 26px;
  margin-top: 33px;
}
.hero-note {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 11px;
  line-height: 1.7;
  color: #92a8c9;
  margin-top: 24px;
  max-width: 450px;
}
.hero-note .icon {
  width: 16px;
  height: 16px;
  margin-top: 1px;
}
.hero-art {
  height: 602px;
  position: relative;
  min-width: 0;
  isolation: isolate;
}
.phone {
  border: 6px solid #101d30;
  border-radius: 35px;
  background: #101d30;
  overflow: hidden;
  box-shadow: 0 22px 50px #04102638;
  width: 218px;
}
.phone img {
  width: 100%;
  height: auto;
  border-radius: 27px;
}
.phone-front {
  position: absolute;
  left: 1%;
  top: 49px;
  width: 230px;
  transform: rotate(-7deg);
  z-index: 2;
}
.phone-back {
  position: absolute;
  left: 44%;
  top: 102px;
  width: 206px;
  transform: rotate(8deg);
  z-index: 1;
  box-shadow: 0 22px 70px #0004;
}
.hero-art .phone-back img {
  filter: brightness(1.1);
}
.orbital {
  position: absolute;
  border: 1px solid #4a80d631;
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
}
.orbital-one {
  width: 505px;
  height: 505px;
  left: -4%;
  top: 55px;
}
.orbital-two {
  width: 650px;
  height: 650px;
  left: -20%;
  top: -20px;
}
.hero-art figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 9px;
  text-align: center;
  color: #8ba3c8;
  font-size: 10px;
  line-height: 1.7;
}
.hero-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  border-top: 1px solid #92b2e226;
  padding-block: 19px;
  font-size: 11px;
  color: #91a9ce;
  letter-spacing: 0.3px;
}
.hero-bottom > a {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 36px;
}
.hero-bottom .icon {
  width: 16px;
  height: 16px;
}
.section {
  padding: 112px 0;
  scroll-margin-top: 86px;
}
.section-heading {
  margin-bottom: 48px;
  max-width: 800px;
}
h2 {
  font-size: clamp(2rem, 3.6vw, 3.1rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1.24;
  overflow-wrap: anywhere;
}
html[lang="zh-CN"] h2 {
  line-height: 1.4;
  letter-spacing: -0.025em;
}
.section-description {
  font-size: 15px;
  line-height: 1.95;
  color: var(--muted);
  max-width: 480px;
  margin-top: 22px;
}
.split-heading {
  display: flex;
  justify-content: space-between;
  gap: 70px;
  max-width: none;
  align-items: flex-end;
  margin-bottom: 55px;
}
.split-heading > .section-description {
  max-width: 390px;
  margin-bottom: 7px;
  flex: 0 1 390px;
}
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 36px;
}
.benefit {
  border-top: 1px solid var(--line);
  padding-top: 26px;
}
.benefit-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 26px;
}
.feature-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: #eef4ff;
  color: var(--blue);
}
.index-number {
  font-size: 11px;
  letter-spacing: 1px;
  color: #9ba8bb;
}
.benefit h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
}
.benefit p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 340px;
}
.experience {
  background: var(--pale);
}
.experience .section-heading {
  margin-bottom: 38px;
}
.feature-tabs {
  display: flex;
  gap: 26px;
  border-bottom: 1px solid #d6e0ed;
  margin-bottom: 40px;
}
.feature-tabs button {
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 17px 2px 20px;
  font-size: 14px;
  text-align: left;
  min-height: 55px;
  flex-shrink: 1;
  min-width: 0;
  line-height: 1.6;
}
.feature-tabs button[aria-selected="true"] {
  color: var(--blue);
  font-weight: 600;
}
.feature-tabs button[aria-selected="true"]::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--blue);
}
.tab-number {
  font-size: 10px;
  opacity: 0.7;
  letter-spacing: 1px;
}
.feature-panel {
  display: grid;
  grid-template-columns: 1.06fr 1fr;
  gap: 80px;
  align-items: center;
}
.feature-stage {
  position: relative;
  min-height: 515px;
  display: flex;
  align-items: center;
  justify-content: center;
  isolation: isolate;
  overflow: hidden;
  border-radius: 12px;
  background: #e2ebff;
}
.feature-stage::before,
.feature-stage::after {
  content: "";
  position: absolute;
  z-index: -1;
  border: 1px solid #9cb8ea6b;
  width: 380px;
  height: 380px;
  border-radius: 50%;
}
.feature-stage::after {
  width: 520px;
  height: 520px;
}
.feature-stage .phone {
  width: 198px;
  border-width: 5px;
  border-radius: 29px;
  transform: rotate(-5deg);
  box-shadow: 14px 25px 46px #1f3d6c38;
  z-index: 2;
  margin: 38px 0;
}
.feature-stage .phone img {
  border-radius: 22px;
}
.feature-stage-1 {
  background: #ddefe9;
}
.feature-stage-1::before,
.feature-stage-1::after {
  border-color: #80b8a84d;
}
.feature-stage-1 .phone {
  transform: rotate(4deg);
}
.feature-stage-2 {
  background: #172b48;
}
.feature-stage-2::before,
.feature-stage-2::after {
  border-color: #8db1ed26;
}
.feature-stage-2 .stage-word {
  color: #93b1df29;
}
.stage-word {
  position: absolute;
  inset: auto 0 32px;
  text-align: center;
  font-size: clamp(2.6rem, 4.8vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.055em;
  white-space: nowrap;
  color: #577fbe2b;
  z-index: 0;
}
.stage-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--blue);
  z-index: 1;
}
.stage-dot-one {
  left: 17%;
  top: 23%;
}
.stage-dot-two {
  right: 13%;
  bottom: 25%;
  width: 6px;
  height: 6px;
  background: #85a9ea;
}
.feature-copy {
  max-width: 385px;
  min-width: 0;
}
.section-index {
  display: block;
  color: #7d91ad;
  font-size: 11px;
  letter-spacing: 1.5px;
  margin-bottom: 26px;
}
.feature-copy h3 {
  font-size: 32px;
  line-height: 1.45;
  letter-spacing: -0.035em;
  font-weight: 600;
  margin-bottom: 22px;
  overflow-wrap: anywhere;
}
.feature-copy > p {
  font-size: 15px;
  line-height: 2;
  color: var(--muted);
}
.feature-detail {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: #506b61;
  font-size: 12px;
  line-height: 1.9;
  margin: 26px 0;
}
.feature-detail > span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #58a38a;
  flex-shrink: 0;
  margin-top: 9px;
}
.demo-label {
  display: block;
  font-size: 10px;
  line-height: 1.8;
  color: #7c8da4;
  margin-top: 28px;
}
.centered {
  margin-inline: auto;
  text-align: center;
  max-width: 850px;
}
.centered .section-description {
  margin-inline: auto;
  max-width: 570px;
}
.platform-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}
.platform-card {
  border: 1px solid var(--line);
  padding: 28px 24px;
  min-height: 207px;
  border-radius: 10px;
  position: relative;
  transition:
    background 0.2s,
    border-color 0.2s,
    transform 0.2s;
}
.platform-card:hover {
  border-color: #8eadea;
  background: #f7faff;
  transform: translateY(-4px);
}
.platform-icon {
  display: inline-grid;
  place-items: center;
  width: 43px;
  height: 43px;
  color: var(--blue);
  background: #edf3ff;
  border-radius: 10px;
}
.platform-icon .icon {
  width: 24px;
  height: 24px;
}
.platform-card h3 {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.5;
  margin: 23px 0 4px;
}
.platform-card > span:not(.platform-icon):not(.platform-arrow) {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.8;
  display: block;
}
.platform-arrow {
  position: absolute;
  right: 20px;
  top: 29px;
  color: #7b8da6;
}
.platform-arrow .icon {
  width: 18px;
  height: 18px;
}
.teams {
  background: #edf3f8;
}
.teams-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 100px;
  align-items: start;
}
.team-copy .text-link {
  margin-top: 25px;
}
.team-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  background: var(--white);
  border: 1px solid #dde7f0;
  border-radius: 10px;
  padding: 24px 21px;
  margin-bottom: 22px;
}
.team-flow > span {
  font-size: 12px;
  font-weight: 550;
  min-width: 0;
  line-height: 1.7;
  overflow-wrap: anywhere;
}
.team-flow small {
  display: block;
  font-size: 10px;
  color: #8e9eb4;
  letter-spacing: 1px;
  margin-bottom: 9px;
}
.team-flow > .icon {
  width: 16px;
  height: 16px;
  color: #a8b7cc;
}
.team-features article {
  display: flex;
  gap: 20px;
  padding: 23px 3px;
  border-bottom: 1px solid #d8e3ed;
}
.team-features article > .icon {
  color: #547ca7;
  width: 22px;
  height: 22px;
  margin-top: 3px;
}
.team-features h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.65;
  margin-bottom: 7px;
}
.team-features p {
  font-size: 13px;
  line-height: 1.9;
  color: var(--muted);
}
.team-footnote {
  font-size: 10px;
  line-height: 1.9;
  color: #75869d;
  margin-top: 19px;
}
.faq-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 90px;
}
.faq .section-heading {
  max-width: 390px;
}
.faq h2 {
  font-size: clamp(2rem, 3.3vw, 2.8rem);
}
.faq-items details {
  border-bottom: 1px solid var(--line);
}
.faq-items details:first-child {
  border-top: 1px solid var(--line);
}
.faq-items summary {
  list-style: none;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  font-size: 15px;
  font-weight: 550;
  line-height: 1.7;
  padding: 21px 0;
}
.faq-items summary::-webkit-details-marker {
  display: none;
}
.faq-plus {
  font-size: 24px;
  font-weight: 400;
  color: #8397b0;
  transition: transform 0.2s;
  flex-shrink: 0;
}
.faq-items details[open] .faq-plus {
  transform: rotate(45deg);
  color: var(--blue);
}
.faq-items p {
  font-size: 13px;
  line-height: 2;
  color: var(--muted);
  padding: 0 32px 23px 0;
}
.cta {
  position: relative;
  background: #215adb;
  isolation: isolate;
  overflow: hidden;
  color: var(--white);
}
.cta::after {
  content: "";
  position: absolute;
  z-index: -1;
  width: 580px;
  height: 580px;
  border: 1px solid #fff2;
  border-radius: 50%;
  right: 5%;
  top: -145px;
  box-shadow:
    0 0 0 65px #ffffff09,
    0 0 0 130px #ffffff06;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  min-height: 290px;
  padding-block: 60px;
}
.cta .eyebrow {
  color: #c3d6ff;
  margin-bottom: 15px;
}
.cta h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  letter-spacing: -0.045em;
  margin-bottom: 15px;
}
.cta p:not(.eyebrow) {
  font-size: 14px;
  line-height: 1.8;
  color: #d4e1ff;
}
.cta .button {
  flex-shrink: 0;
}
.site-footer {
  background: #fff;
  padding: 62px 0 23px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 45px;
  margin-bottom: 52px;
}
.footer-tagline {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
  margin-top: 18px;
  max-width: 280px;
}
.footer-column {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 13px;
}
.footer-column > span {
  font-size: 11px;
  color: #91a0b5;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.footer-column a {
  font-size: 12px;
  color: #56667e;
  min-height: 25px;
  display: flex;
  align-items: center;
  line-height: 1.6;
}
.footer-column a:hover {
  color: var(--blue);
}
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 32px;
  align-items: flex-start;
  font-size: 10px;
  line-height: 1.8;
  color: #8492a6;
}
.footer-bottom > span:last-child {
  max-width: 560px;
  text-align: right;
}
.page-intro {
  padding: 88px 0 62px;
}
.page-intro h1 {
  font-size: clamp(2.6rem, 5vw, 4.5rem);
  line-height: 1.23;
  letter-spacing: -0.055em;
  font-weight: 600;
  max-width: 850px;
  overflow-wrap: anywhere;
}
.page-intro > p:last-child {
  font-size: 16px;
  line-height: 1.95;
  color: var(--muted);
  max-width: 660px;
  margin-top: 25px;
}
.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}
.download-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 34px;
  scroll-margin-top: 115px;
  min-width: 0;
  position: relative;
  transition: border-color 0.2s;
}
.download-card.is-recommended {
  border-color: #6d9aef;
  background: #fafcff;
}
.download-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 24px;
  min-height: 44px;
}
.device-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--blue);
  background: #eaf1ff;
  border-radius: 5px;
  padding: 7px 10px;
  line-height: 1.6;
  text-align: center;
}
.download-card h2 {
  font-size: 28px;
  letter-spacing: -0.035em;
  line-height: 1.5;
  margin-bottom: 5px;
}
.download-card p {
  font-size: 13px;
  line-height: 1.85;
  color: var(--muted);
  margin-top: 10px;
}
.download-card .download-architecture {
  font-size: 12px;
  letter-spacing: 0.2px;
  color: #7c8ca3;
  margin: 0 0 15px;
}
.download-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.download-options .button {
  min-height: 48px;
  font-size: 12px;
  padding: 12px 18px;
  gap: 14px;
}
.button-pending,
.button-pending:hover {
  background: #edf1f7;
  color: #73839b;
  border-color: #e0e7f0;
  transform: none;
}
.download-card .download-pending {
  font-size: 11px;
  margin-top: 13px;
  color: #8794a7;
}
.download-card .release-version {
  font-size: 11px;
  font-weight: 600;
  color: var(--ink);
}
.help-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 50px;
  padding: 38px;
  background: var(--pale);
  border-radius: 12px;
  margin-bottom: 90px;
}
.help-banner > div > .icon {
  color: var(--blue);
  margin-bottom: 18px;
}
.help-banner h2 {
  font-size: 23px;
  letter-spacing: -0.03em;
  line-height: 1.5;
  margin-bottom: 10px;
}
.help-banner p {
  font-size: 13px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 630px;
}
.help-banner .text-link {
  flex-shrink: 0;
  font-size: 12px;
}
.guide-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 100px;
  margin-bottom: 100px;
}
.guide-steps {
  list-style: none;
}
.guide-steps li {
  display: flex;
  gap: 25px;
  border-top: 1px solid var(--line);
  padding: 30px 0;
}
.step-number {
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--blue);
  line-height: 2;
  flex-shrink: 0;
  margin-top: 3px;
}
.guide-steps h2 {
  font-size: 22px;
  line-height: 1.5;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 13px;
}
.guide-steps p,
.guide-tip p {
  font-size: 14px;
  line-height: 2;
  color: var(--muted);
}
.guide-steps .text-link {
  margin-top: 13px;
  font-size: 13px;
}
.guide-aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.guide-tip {
  background: var(--pale);
  padding: 30px;
  border-radius: 10px;
}
.guide-tip > .icon {
  color: var(--blue);
  margin-bottom: 22px;
}
.guide-tip h2 {
  font-size: 18px;
  letter-spacing: -0.02em;
  line-height: 1.6;
  margin-bottom: 15px;
}
.guide-tip p {
  font-size: 12px;
}
.guide-tip .text-link {
  margin-top: 15px;
  font-size: 12px;
}
.information-layout {
  max-width: 900px;
  margin-bottom: 100px;
}
.information-layout > section {
  display: flex;
  gap: 40px;
  border-top: 1px solid var(--line);
  padding: 33px 0;
}
.information-layout .section-index {
  margin-top: 5px;
  flex-shrink: 0;
}
.information-layout h2 {
  font-size: 24px;
  line-height: 1.5;
  letter-spacing: -0.03em;
  margin-bottom: 15px;
}
.information-layout p {
  font-size: 14px;
  line-height: 2;
  color: var(--muted);
  max-width: 720px;
}
.information-layout > .text-link {
  margin-top: 15px;
}
.not-found {
  padding-block: 120px;
}
.not-found h1 {
  font-size: clamp(2.3rem, 5vw, 4rem);
  letter-spacing: -0.05em;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 20px;
}
.not-found p:not(.eyebrow) {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.9;
  margin-bottom: 30px;
}
.language-entry {
  padding: 14px 24px;
  display: flex;
  justify-content: center;
  gap: 28px;
  background: var(--pale);
  font-size: 14px;
}
.will-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.5s ease,
    transform 0.5s ease;
}
.will-reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (min-width: 1500px) {
  .hero-inner {
    min-height: 760px;
  }
  .hero-art {
    transform: scale(1.07);
  }
}
@media (max-width: 1100px) {
  .container {
    width: calc(100% - 64px);
  }
  .header-inner {
    gap: 22px;
  }
  .site-nav {
    gap: 21px;
  }
  .header-actions {
    gap: 15px;
  }
  .hero-inner {
    gap: 20px;
    min-height: 650px;
  }
  .hero-art {
    height: 565px;
  }
  .phone-front {
    left: 0;
    width: 207px;
    top: 50px;
  }
  .phone-back {
    left: 43%;
    width: 180px;
    top: 105px;
  }
  .hero-art figcaption {
    bottom: 24px;
  }
  .orbital-one {
    width: 430px;
    height: 430px;
  }
  .orbital-two {
    width: 560px;
    height: 560px;
  }
  .feature-panel {
    gap: 50px;
  }
  .teams-inner {
    gap: 65px;
  }
  .faq-layout {
    gap: 60px;
  }
  .guide-layout {
    gap: 55px;
  }
  .hero-description {
    font-size: 16px;
  }
  .hero-actions {
    gap: 18px;
  }
}
@media (max-width: 960px) {
  .header-inner {
    height: 76px;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    padding: 20px 32px 25px;
    box-shadow: 0 18px 28px #0a1d3a12;
    border-bottom: 1px solid var(--line);
  }
  .site-nav.is-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 3px;
  }
  .site-nav > a {
    padding: 6px 0;
    font-size: 15px;
    min-height: 48px;
  }
  .header-actions {
    margin-left: auto;
    gap: 14px;
  }
  .menu-toggle {
    display: inline-grid;
    place-items: center;
  }
  .header-download {
    margin-left: 2px;
  }
  .hero-inner {
    grid-template-columns: 1.1fr 1fr;
  }
  .hero h1 {
    font-size: clamp(2.5rem, 5.55vw, 4rem);
  }
  html[lang="zh-CN"] .hero h1 {
    font-size: clamp(3rem, 6.5vw, 4rem);
  }
  html[lang="ru"] .hero h1 {
    font-size: clamp(2.1rem, 4.6vw, 3.4rem);
  }
  .hero-description {
    font-size: 15px;
  }
  .hero-art {
    height: 530px;
  }
  .phone-front {
    width: 186px;
    top: 65px;
    left: 1%;
  }
  .phone-back {
    width: 157px;
    top: 112px;
    left: 46%;
  }
  .hero-art figcaption {
    font-size: 9px;
  }
  .hero-inner {
    min-height: 610px;
  }
  .hero-note {
    font-size: 10px;
  }
  .section {
    padding: 85px 0;
  }
  .split-heading {
    gap: 40px;
  }
  .split-heading > .section-description {
    flex-basis: 320px;
  }
  .benefit-grid {
    gap: 24px;
  }
  .benefit h3 {
    font-size: 17px;
  }
  .benefit p {
    font-size: 13px;
  }
  .feature-panel {
    gap: 38px;
  }
  .feature-stage {
    min-height: 475px;
  }
  .feature-stage .phone {
    width: 180px;
  }
  .feature-copy h3 {
    font-size: 27px;
  }
  .feature-copy > p {
    font-size: 14px;
  }
  .platform-grid {
    gap: 12px;
  }
  .platform-card {
    padding: 25px 19px;
    min-height: 200px;
  }
  .platform-card > span:not(.platform-icon):not(.platform-arrow) {
    font-size: 11px;
  }
  .platform-arrow {
    right: 14px;
    top: 25px;
  }
  .teams-inner {
    gap: 45px;
    grid-template-columns: 1fr 1.1fr;
  }
  .team-flow {
    gap: 8px;
    padding: 20px 14px;
  }
  .team-flow > span {
    font-size: 10px;
  }
  .team-flow > .icon {
    width: 13px;
    height: 13px;
  }
  .team-features article {
    gap: 15px;
  }
  .faq-layout {
    gap: 40px;
  }
  .page-intro {
    padding-top: 68px;
  }
  .guide-layout {
    gap: 35px;
  }
  .download-card {
    padding: 27px;
  }
  .help-banner {
    gap: 25px;
    padding: 30px;
  }
  .help-banner .text-link {
    flex-shrink: 1;
  }
}
@media (max-width: 760px) {
  .container {
    width: calc(100% - 44px);
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 0;
    min-height: 0;
    padding-top: 25px;
    padding-bottom: 0;
  }
  .hero-copy {
    padding: 30px 0 0;
    max-width: 600px;
  }
  .hero .eyebrow {
    margin-bottom: 21px;
    font-size: 10px;
    letter-spacing: 1.3px;
  }
  .hero h1 {
    font-size: clamp(2.7rem, 8.6vw, 4.7rem);
    margin-bottom: 23px;
    line-height: 1.12;
  }
  html[lang="zh-CN"] .hero h1 {
    font-size: clamp(3.2rem, 10.5vw, 4.9rem);
  }
  html[lang="ru"] .hero h1 {
    font-size: clamp(2.2rem, 7.5vw, 4.1rem);
  }
  .hero-description {
    font-size: 15px;
    max-width: 440px;
    line-height: 1.9;
  }
  .hero-actions {
    margin-top: 26px;
    gap: 23px;
  }
  .hero-note {
    font-size: 10px;
    margin-top: 20px;
  }
  .hero-art {
    width: min(430px, 100%);
    height: 540px;
    justify-self: center;
    margin-top: 8px;
  }
  .phone-front {
    width: 202px;
    left: 11%;
    top: 41px;
  }
  .phone-back {
    width: 177px;
    left: 53%;
    top: 95px;
  }
  .hero-art figcaption {
    bottom: 16px;
    font-size: 9px;
  }
  .orbital-one {
    left: -1%;
    top: 42px;
    width: 420px;
    height: 420px;
  }
  .orbital-two {
    left: -20%;
    top: -20px;
    width: 565px;
    height: 565px;
  }
  .hero-bottom {
    font-size: 10px;
    padding-block: 16px;
  }
  .hero-bottom > a {
    gap: 8px;
  }
  .section {
    padding: 70px 0;
  }
  .section-heading {
    margin-bottom: 32px;
  }
  .eyebrow {
    font-size: 10px;
    letter-spacing: 1.1px;
    margin-bottom: 16px;
  }
  h2 {
    font-size: 32px;
  }
  .section-description {
    font-size: 14px;
    margin-top: 18px;
  }
  .split-heading {
    display: block;
    margin-bottom: 38px;
  }
  .split-heading > .section-description {
    max-width: 520px;
    margin-top: 21px;
  }
  .benefit-grid {
    grid-template-columns: 1fr;
    gap: 29px;
  }
  .benefit {
    display: grid;
    grid-template-columns: 46px 1fr;
    column-gap: 19px;
    padding-top: 22px;
  }
  .benefit-top {
    grid-row: span 2;
    margin: 1px 0 0;
    display: block;
  }
  .benefit h3 {
    font-size: 17px;
    margin-bottom: 6px;
  }
  .benefit p {
    font-size: 13px;
    max-width: none;
  }
  .index-number {
    display: none;
  }
  .feature-panel {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .feature-stage {
    min-height: 465px;
  }
  .feature-stage .phone {
    width: 180px;
    margin-block: 32px;
  }
  .feature-copy {
    max-width: 540px;
  }
  .section-index {
    margin-bottom: 18px;
  }
  .feature-copy h3 {
    font-size: 27px;
    margin-bottom: 16px;
  }
  .feature-detail {
    margin: 20px 0;
  }
  .demo-label {
    margin-top: 15px;
  }
  .feature-tabs {
    gap: 20px;
    margin-bottom: 27px;
  }
  .feature-tabs button {
    font-size: 13px;
    gap: 9px;
    padding-top: 10px;
    padding-bottom: 15px;
  }
  .feature-tabs .tab-number {
    font-size: 9px;
  }
  .stage-word {
    font-size: 52px;
  }
  .centered {
    text-align: left;
  }
  .centered .section-description {
    margin-left: 0;
  }
  .platform-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 13px;
  }
  .platform-card {
    min-height: 182px;
    padding: 24px 21px;
  }
  .platform-card h3 {
    font-size: 18px;
    margin-top: 20px;
  }
  .platform-card > span:not(.platform-icon):not(.platform-arrow) {
    font-size: 11px;
  }
  .teams-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .team-copy .text-link {
    margin-top: 16px;
  }
  .team-flow {
    justify-content: space-between;
    padding: 23px;
    gap: 15px;
  }
  .team-flow > span {
    font-size: 12px;
  }
  .team-flow > .icon {
    width: 16px;
    height: 16px;
  }
  .team-features article {
    padding-block: 22px;
  }
  .team-footnote {
    font-size: 10px;
  }
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .faq .section-heading {
    max-width: none;
    margin-bottom: 4px;
  }
  .faq h2 {
    font-size: 30px;
  }
  .faq-items summary {
    font-size: 14px;
    min-height: 72px;
  }
  .faq-items p {
    font-size: 13px;
  }
  .cta-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 26px;
    padding-block: 50px;
    min-height: 0;
  }
  .cta h2 {
    font-size: 35px;
  }
  .cta p:not(.eyebrow) {
    font-size: 13px;
  }
  .cta .eyebrow {
    font-size: 9px;
  }
  .site-footer {
    padding-top: 45px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 35px;
    margin-bottom: 37px;
  }
  .footer-top > div:first-child {
    grid-column: span 2;
  }
  .footer-column {
    gap: 10px;
  }
  .footer-column a {
    min-height: 32px;
    font-size: 12px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
  }
  .footer-bottom > span:last-child {
    text-align: left;
    max-width: 520px;
  }
  .page-intro {
    padding-top: 52px;
    padding-bottom: 42px;
  }
  .page-intro h1 {
    font-size: clamp(2.15rem, 7.5vw, 3.5rem);
  }
  .page-intro > p:last-child {
    font-size: 14px;
    margin-top: 22px;
  }
  .download-grid {
    grid-template-columns: 1fr;
    gap: 17px;
    margin-bottom: 35px;
  }
  .download-card {
    padding: 27px;
  }
  .download-card-top {
    margin-bottom: 19px;
  }
  .download-card h2 {
    font-size: 26px;
  }
  .download-options {
    margin-top: 22px;
  }
  .help-banner {
    align-items: flex-start;
    flex-direction: column;
    padding: 27px;
    gap: 16px;
    margin-bottom: 60px;
  }
  .help-banner h2 {
    font-size: 22px;
  }
  .help-banner .text-link {
    font-size: 13px;
  }
  .guide-layout {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 60px;
  }
  .guide-steps li {
    gap: 19px;
    padding-block: 25px;
  }
  .guide-steps h2 {
    font-size: 20px;
  }
  .guide-steps p {
    font-size: 13px;
  }
  .guide-aside {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
  .guide-tip {
    padding: 23px;
  }
  .guide-tip h2 {
    font-size: 16px;
  }
  .guide-tip p {
    font-size: 12px;
  }
  .information-layout {
    margin-bottom: 60px;
  }
  .information-layout > section {
    gap: 21px;
    padding-block: 25px;
  }
  .information-layout h2 {
    font-size: 21px;
  }
  .information-layout p {
    font-size: 13px;
  }
  .not-found {
    padding-block: 70px;
  }
}
@media (max-width: 420px) {
  .header-inner {
    height: 70px;
    gap: 10px;
  }
  .brand {
    gap: 8px;
  }
  .brand img {
    width: 32px;
    height: 32px;
    border-radius: 9px;
  }
  .brand > span {
    font-size: 10px;
    letter-spacing: 1.5px;
  }
  .brand small {
    font-size: 8px;
    letter-spacing: 2.4px;
    margin-top: 4px;
  }
  .header-actions {
    gap: 8px;
  }
  .language-switch summary {
    gap: 4px;
    font-size: 11px;
  }
  .language-switch summary > .icon:first-child {
    width: 16px;
    height: 16px;
  }
  .language-switch summary > .icon:last-child {
    display: none;
  }
  .header-download {
    display: none;
  }
  .menu-toggle {
    margin-right: -8px;
  }
  .hero-copy {
    padding-top: 23px;
  }
  .hero-description {
    font-size: 14px;
  }
  .hero-actions {
    gap: 18px;
  }
  .hero-actions .button {
    font-size: 13px;
    padding: 14px 20px;
    gap: 13px;
  }
  .hero-actions .text-link {
    font-size: 12px;
    gap: 8px;
  }
  .hero-art {
    height: 475px;
    margin-top: 15px;
  }
  .phone-front {
    width: 174px;
    left: 4%;
    top: 40px;
    border-width: 5px;
    border-radius: 28px;
  }
  .phone-front img {
    border-radius: 21px;
  }
  .phone-back {
    width: 149px;
    left: 48%;
    top: 89px;
    border-width: 5px;
    border-radius: 26px;
  }
  .phone-back img {
    border-radius: 19px;
  }
  .hero-art figcaption {
    font-size: 9px;
    bottom: 16px;
    max-width: 280px;
    margin: auto;
  }
  .orbital-one {
    width: 350px;
    height: 350px;
    left: -10%;
    top: 49px;
  }
  .orbital-two {
    width: 470px;
    height: 470px;
    left: -28%;
    top: -10px;
  }
  .hero-bottom {
    gap: 13px;
  }
  .hero-bottom > span {
    max-width: 175px;
  }
  .hero-bottom > a {
    font-size: 9px;
  }
  .hero-bottom .icon {
    width: 13px;
    height: 13px;
  }
  .hero-note {
    font-size: 9px;
    gap: 7px;
  }
  .hero .eyebrow {
    font-size: 9px;
    letter-spacing: 0.9px;
  }
  .section {
    padding-block: 58px;
  }
  h2 {
    font-size: 29px;
  }
  .feature-tabs {
    gap: 10px;
  }
  .feature-tabs button {
    font-size: 11px;
    gap: 6px;
    line-height: 1.7;
    flex: 1;
  }
  .feature-tabs .tab-number {
    display: none;
  }
  .feature-stage {
    min-height: 435px;
  }
  .feature-stage .phone {
    width: 166px;
    border-radius: 27px;
  }
  .feature-copy h3 {
    font-size: 25px;
  }
  .platform-card {
    padding: 21px 17px;
    min-height: 177px;
  }
  .platform-arrow {
    right: 13px;
    top: 25px;
  }
  .platform-icon {
    width: 37px;
    height: 37px;
    border-radius: 9px;
  }
  .platform-icon .icon {
    width: 22px;
    height: 22px;
  }
  .platform-card h3 {
    font-size: 17px;
  }
  .platform-card > span:not(.platform-icon):not(.platform-arrow) {
    font-size: 10px;
  }
  .team-flow {
    padding: 19px 15px;
    gap: 9px;
  }
  .team-flow > span {
    font-size: 10px;
  }
  .team-flow > .icon {
    width: 13px;
    height: 13px;
  }
  .cta h2 {
    font-size: 31px;
  }
  .page-intro h1 {
    font-size: 34px;
  }
  .download-card {
    padding: 23px;
  }
  .download-card-top {
    gap: 8px;
  }
  .device-label {
    font-size: 9px;
    padding: 7px 9px;
  }
  .guide-aside {
    grid-template-columns: 1fr;
  }
  .guide-tip {
    padding: 25px;
  }
  .guide-steps li {
    gap: 16px;
  }
  .guide-steps h2 {
    font-size: 19px;
  }
  .information-layout > section {
    gap: 17px;
  }
}
@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
  .will-reveal {
    opacity: 1;
    transform: none;
  }
}