:root {
  color-scheme: dark;
  --bg: #0a0a0a;
  --secondary: #111111;
  --panel: #1a1a1a;
  --hover: #252525;
  --text: #f5f5f5;
  --muted: #a8a8a8;
  --dim: #888888;
  --border: #262626;
  --accent: #ffffff;
  --on-accent: #141414;
  --nav: rgba(10, 10, 10, 0.86);
  --glow: rgba(255, 255, 255, 0.055);
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    'PingFang SC',
    'Microsoft YaHei',
    sans-serif;
}
:root[data-theme='light'] {
  color-scheme: light;
  --bg: #fafafa;
  --secondary: #f5f5f5;
  --panel: #ffffff;
  --hover: #eeeeee;
  --text: #1a1a1a;
  --muted: #555555;
  --dim: #6b6b6b;
  --border: #e0e0e0;
  --accent: #1a1a1a;
  --on-accent: #ffffff;
  --nav: rgba(250, 250, 250, 0.88);
  --glow: rgba(0, 0, 0, 0.035);
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
.button,
.nav-links a,
.text-link {
  transition:
    background 0.18s,
    color 0.18s,
    border-color 0.18s,
    transform 0.18s;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex='0']:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 5px;
}
img {
  max-width: 100%;
  display: block;
}
h1,
h2,
h3,
p {
  margin: 0;
}
svg.icon {
  width: 20px;
  height: 20px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon-library {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}
.shell {
  width: min(1200px, calc(100% - 64px));
  margin-inline: auto;
}
.muted {
  color: var(--muted);
}
.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  padding: 10px 18px;
  background: var(--accent);
  color: var(--on-accent);
  border-radius: 6px;
}
.skip-link:focus {
  top: 10px;
}
.site-header {
  height: 66px;
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--border);
  background: var(--nav);
  backdrop-filter: blur(20px);
}
.nav {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 650;
  letter-spacing: -0.4px;
  white-space: nowrap;
}
.brand img {
  border-radius: 8px;
}
.brand-cn {
  color: var(--dim);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 1px;
  padding-left: 8px;
  border-left: 1px solid var(--border);
  margin-left: 2px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
}
.nav-links a {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}
.nav-links a:hover,
.footer-links a:hover {
  color: var(--text);
}
.nav-links a > span {
  margin-left: 2px;
  color: var(--dim);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.icon-button {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
}
.icon-button:hover {
  background: var(--hover);
  color: var(--text);
}
.theme-toggle .moon {
  display: none;
}
[data-theme='light'] .theme-toggle .sun {
  display: none;
}
[data-theme='light'] .theme-toggle .moon {
  display: block;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 550;
  white-space: nowrap;
}
.button.primary {
  background: var(--accent);
  color: var(--on-accent);
}
.button.primary:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}
.button.secondary {
  border-color: var(--border);
  background: transparent;
  color: var(--muted);
}
.button.secondary:hover {
  color: var(--text);
  border-color: var(--dim);
  background: var(--secondary);
}
.button.large {
  padding: 15px 23px;
  font-size: 14px;
  min-height: 52px;
}
.button-arrow {
  margin-left: 12px;
}
.nav-download {
  padding: 8px 13px;
}
.nav-download .icon {
  width: 15px;
  height: 15px;
}
.menu-toggle {
  display: none;
}
.hero {
  padding: 77px 0 51px;
  text-align: center;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0 10%;
  pointer-events: none;
  background: radial-gradient(ellipse at center, var(--glow), transparent 70%);
  z-index: -1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--muted);
  background: var(--secondary);
}
.hero-badge .icon {
  width: 13px;
  height: 13px;
}
.hero h1 {
  font-size: clamp(72px, 8.7vw, 120px);
  font-weight: 650;
  line-height: 1.05;
  letter-spacing: -6px;
  margin: 24px 0 21px;
}
.hero-tagline {
  font-size: clamp(23px, 2.5vw, 32px);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: -0.6px;
  margin-bottom: 18px;
  white-space: nowrap;
}
.text-gradient {
  background: linear-gradient(110deg, var(--text) 20%, var(--dim));
  color: transparent;
  background-clip: text;
  -webkit-background-clip: text;
}
.hero-description {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}
.hero-description > span {
  color: var(--text);
  font-size: 14px;
}
.mobile-break {
  display: none;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 27px 0 16px;
}
.hero-platform {
  color: var(--dim);
  font-size: 11px;
}
.hero-platform > span {
  padding-left: 14px;
  margin-left: 12px;
  border-left: 1px solid var(--border);
}
.showcase {
  scroll-margin-top: 25px;
}
.preview-window {
  border: 1px solid var(--border);
  border-radius: 13px;
  overflow: hidden;
  background: var(--secondary);
  box-shadow: 0 25px 100px #0002;
}
.preview-toolbar {
  padding: 13px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}
.preview-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--muted);
}
.status-dot {
  width: 5px;
  height: 5px;
  background: var(--text);
  border-radius: 50%;
}
.preview-hint {
  font-size: 9px;
  letter-spacing: 1.4px;
  color: var(--dim);
}
.preview-toolbar-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.carousel-toggle {
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 4px 8px;
  background: transparent;
  color: var(--muted);
  font-size: 10px;
  white-space: nowrap;
}
.carousel-toggle:hover {
  background: var(--hover);
  color: var(--text);
}
.feature-tabs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  padding: 9px;
  gap: 4px;
  border-bottom: 1px solid var(--border);
}
.feature-tabs button {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 10px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--dim);
  font-size: 12px;
}
.feature-tabs button:hover {
  background: var(--hover);
  color: var(--text);
}
.feature-tabs button[aria-selected='true'] {
  background: var(--panel);
  color: var(--text);
  border-color: var(--border);
}
.feature-tabs button[aria-selected='true']::after {
  content: '';
  position: absolute;
  inset: auto 0 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(var(--carousel-progress, 0));
  transform-origin: left;
  pointer-events: none;
}
.feature-tabs .icon {
  width: 16px;
  height: 16px;
}
.feature-tabs small {
  font-size: 11px;
  font-weight: 400;
  margin-left: 5px;
  color: var(--dim);
}
.feature-panel {
  background: #0a0a0a;
}
.feature-panel img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: contain;
  object-position: top;
}
.preview-caption {
  padding: 14px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--muted);
}
.preview-caption > span {
  font-size: 10px;
  color: var(--dim);
  white-space: nowrap;
}
.section-space {
  padding-top: 110px;
}
.section-heading {
  margin-bottom: 35px;
}
.eyebrow {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--dim);
  font-weight: 500;
  margin-bottom: 13px;
}
.section-heading h2,
.faq h2 {
  font-size: clamp(26px, 3vw, 35px);
  font-weight: 550;
  line-height: 1.4;
  letter-spacing: -1px;
}
.section-heading > p:last-child:not(.eyebrow) {
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
}
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.benefit-card {
  border: 1px solid var(--border);
  background: var(--secondary);
  border-radius: 10px;
  padding: 27px;
}
.feature-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 31px;
  background: var(--bg);
}
.benefit-card h3 {
  font-size: 16px;
  font-weight: 550;
  margin-bottom: 12px;
}
.benefit-card > p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.9;
  max-width: 290px;
}
.card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 23px;
}
.card-tags span {
  border: 1px solid var(--border);
  color: var(--dim);
  border-radius: 4px;
  font-size: 10px;
  padding: 3px 7px;
}
.getting-started {
  padding-bottom: 0;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 0;
  list-style: none;
  gap: 32px;
  margin: 0;
}
.steps li {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.step-number {
  color: var(--dim);
  font-size: 12px;
  letter-spacing: 1px;
  line-height: 26px;
}
.steps h3 {
  font-size: 16px;
  font-weight: 550;
  margin-bottom: 10px;
}
.steps p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.9;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  color: var(--muted);
}
.text-link:hover {
  color: var(--text);
}
.text-link .icon {
  width: 13px;
  height: 13px;
}
.steps .text-link {
  margin-top: 10px;
}
.download-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--secondary);
  padding: 45px 56px;
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: 65px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.download-copy {
  position: relative;
}
.download-logo {
  border-radius: 14px;
  width: 48px;
  height: 48px;
  margin-bottom: 26px;
}
.download-copy h2 {
  font-size: 42px;
  font-weight: 550;
  letter-spacing: -1px;
  line-height: 1.25;
  margin-bottom: 19px;
}
.download-copy > p:last-child {
  font-size: 12px;
  color: var(--muted);
}
.download-options {
  border-left: 1px solid var(--border);
  padding-left: 38px;
}
.platform-heading {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 27px;
}
.platform-heading > .icon {
  width: 28px;
  height: 28px;
}
.platform-heading h3 {
  font-size: 15px;
  font-weight: 550;
}
.platform-heading p {
  color: var(--dim);
  font-size: 11px;
  margin-top: 4px;
}
.full-width {
  width: 100%;
}
.release-meta {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 10px;
  color: var(--dim);
}
.download-checks {
  display: flex;
  gap: 18px;
  font-size: 10px;
  color: var(--muted);
  margin: 28px 0 16px;
}
.download-checks > span {
  display: inline-flex;
  gap: 5px;
  align-items: center;
}
.download-checks .icon {
  width: 12px;
  height: 12px;
}
.faq {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 60px;
  padding-top: 100px;
  padding-bottom: 100px;
}
.faq h2 {
  font-size: 28px;
}
.faq-list {
  border-top: 1px solid var(--border);
}
.faq details {
  border-bottom: 1px solid var(--border);
}
.faq summary {
  list-style: none;
  padding: 21px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  cursor: pointer;
  font-size: 13px;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary .icon {
  width: 15px;
  height: 15px;
  color: var(--dim);
  transition: transform 0.2s;
}
.faq details[open] summary .icon {
  transform: rotate(45deg);
}
.faq details p {
  color: var(--muted);
  padding: 0 30px 22px 0;
  font-size: 12px;
  line-height: 1.9;
}
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--secondary);
}
.footer-main {
  display: flex;
  align-items: center;
  gap: 30px;
  padding-top: 32px;
  padding-bottom: 32px;
}
.footer-main > p {
  color: var(--dim);
  font-size: 11px;
  flex: 1;
}
.footer-links {
  display: flex;
  gap: 22px;
  align-items: center;
  font-size: 11px;
  color: var(--muted);
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.footer-links .icon {
  width: 14px;
  height: 14px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  padding-top: 18px;
  padding-bottom: 22px;
  border-top: 1px solid var(--border);
  color: var(--dim);
  font-size: 10px;
}
@media (min-width: 1400px) {
  .hero {
    padding-top: 90px;
    padding-bottom: 60px;
  }
}
@media (max-width: 1000px) {
  .nav-links {
    gap: 17px;
  }
  .brand-cn {
    display: none;
  }
  .feature-tabs small {
    display: none;
  }
  .benefit-card {
    padding: 23px;
  }
  .benefit-card h3 {
    font-size: 14px;
  }
  .download-card {
    padding: 38px;
    grid-template-columns: 1fr 300px;
    gap: 35px;
  }
  .download-options {
    padding-left: 28px;
  }
  .footer-main {
    flex-wrap: wrap;
    gap: 20px;
  }
  .footer-main > p {
    flex-basis: 45%;
  }
}
@media (max-width: 720px) {
  .shell {
    width: calc(100% - 36px);
  }
  .site-header {
    height: 60px;
  }
  .nav {
    gap: 12px;
  }
  .brand {
    font-size: 18px;
    gap: 8px;
  }
  .brand img {
    width: 26px;
    height: 26px;
  }
  .nav-actions {
    gap: 8px;
  }
  .nav-download {
    display: none;
  }
  .menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
  }
  .menu-toggle span {
    width: 16px;
    height: 1px;
    background: currentColor;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 59px;
    left: 0;
    right: 0;
    padding: 16px 18px;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-links.is-open {
    display: flex;
  }
  .nav-links a {
    padding: 13px 8px;
  }
  .hero {
    padding-top: 54px;
    padding-bottom: 35px;
  }
  .hero h1 {
    font-size: clamp(66px, 17vw, 92px);
    letter-spacing: -3px;
    margin-top: 22px;
    margin-bottom: 17px;
  }
  .hero-tagline {
    font-size: clamp(16px, 4.4vw, 25px);
    letter-spacing: -0.3px;
    margin-bottom: 15px;
  }
  .hero-description {
    font-size: 12px;
  }
  .hero-description > span {
    font-size: 12px;
  }
  .mobile-break {
    display: inline;
  }
  .hero-actions {
    gap: 10px;
    margin-top: 24px;
  }
  .button.large {
    font-size: 12px;
    padding: 13px 16px;
    gap: 8px;
    min-height: 48px;
  }
  .button-arrow {
    display: none;
  }
  .hero-platform {
    font-size: 9px;
  }
  .hero-platform > span {
    padding-left: 9px;
    margin-left: 7px;
  }
  .preview-window {
    border-radius: 9px;
  }
  .preview-toolbar {
    padding: 12px;
  }
  .preview-hint {
    display: none;
  }
  .preview-brand {
    font-size: 10px;
  }
  .feature-tabs {
    padding: 6px;
    gap: 3px;
  }
  .feature-tabs button {
    flex-direction: column;
    gap: 5px;
    padding: 9px 4px;
    font-size: 10px;
  }
  .feature-tabs .icon {
    width: 15px;
    height: 15px;
  }
  .preview-caption {
    padding: 12px;
    flex-direction: column;
    align-items: flex-start;
    gap: 7px;
    font-size: 10px;
  }
  .preview-caption > span {
    font-size: 9px;
  }
  .section-space {
    padding-top: 65px;
  }
  .section-heading {
    margin-bottom: 25px;
  }
  .section-heading h2 {
    font-size: 25px;
    letter-spacing: -0.6px;
  }
  .eyebrow {
    font-size: 9px;
    letter-spacing: 1.6px;
  }
  .section-heading > p:last-child:not(.eyebrow) {
    font-size: 12px;
  }
  .benefit-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .benefit-card {
    padding: 24px;
  }
  .feature-icon {
    margin-bottom: 20px;
  }
  .benefit-card h3 {
    font-size: 16px;
  }
  .benefit-card > p {
    max-width: none;
  }
  .card-tags {
    margin-top: 18px;
  }
  .steps {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .steps li {
    gap: 22px;
    padding-top: 22px;
  }
  .steps p br {
    display: none;
  }
  .download-card {
    padding: 28px 24px;
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .download-copy h2 {
    font-size: 36px;
  }
  .download-logo {
    margin-bottom: 22px;
  }
  .download-options {
    padding: 26px 0 0;
    border-left: 0;
    border-top: 1px solid var(--border);
  }
  .platform-heading {
    margin-bottom: 20px;
  }
  .download-checks {
    margin-top: 22px;
  }
  .faq {
    grid-template-columns: 1fr;
    gap: 25px;
    padding-top: 65px;
    padding-bottom: 60px;
  }
  .faq h2 {
    font-size: 25px;
  }
  .faq h2 br {
    display: none;
  }
  .footer-main {
    align-items: flex-start;
    gap: 14px;
    padding-top: 26px;
    padding-bottom: 25px;
  }
  .footer-main > p {
    flex-basis: 100%;
    order: 2;
  }
  .footer-links {
    margin-left: auto;
    gap: 13px;
    font-size: 10px;
    flex-wrap: wrap;
  }
  .footer-links a:last-child {
    display: none;
  }
  .footer-bottom {
    align-items: flex-start;
    font-size: 9px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}