:root {
  --background: #fff;
  --text: #163e34;
  --muted: #66736d;
  --surface: #edf3ee;
  --line: #dde5df;
  --disabled: #8b9c93;
  --radius: 10px;
  --panel-radius: 16px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;
  --space-8: 128px;
  --gutter: clamp(24px, 4.85vw, 76px);
  --motion: 160ms ease;
  --font:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei',
    sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-4);
}
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
select {
  font: inherit;
}
button,
a,
select,
summary {
  -webkit-tap-highlight-color: transparent;
}
button {
  cursor: pointer;
}
button:disabled {
  cursor: default;
}
[hidden] {
  display: none !important;
}
:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 5px;
}
.container {
  width: min(100% - var(--gutter) * 2, 1388px);
  margin-inline: auto;
}
.skip {
  position: absolute;
  left: var(--gutter);
  top: var(--space-1);
  background: var(--background);
  padding: var(--space-2);
  transform: translateY(-200%);
}
.skip:focus {
  transform: translateY(0);
  z-index: 3;
}
.development-notice {
  background: var(--surface);
  color: var(--text);
  padding: var(--space-1) var(--gutter);
  text-align: center;
  font-size: 13px;
}
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: var(--space-3);
}
.wordmark {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -1.3px;
}
nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  color: var(--muted);
  font-size: 18px;
}
nav button {
  border: 0;
  background: transparent;
  padding: var(--space-1) 0;
  color: inherit;
  font-size: inherit;
}
nav a:hover,
nav button:hover {
  color: var(--text);
}
.hero {
  display: grid;
  grid-template-columns: 53% 47%;
  align-items: center;
  min-height: 714px;
}
.hero-copy {
  position: relative;
  z-index: 1;
}
h1 {
  font-size: clamp(42px, 6vw, 92px);
  font-weight: 750;
  line-height: 1.15;
  letter-spacing: -3px;
  margin: 0 0 var(--space-4);
  white-space: nowrap;
}
.hero-description {
  color: var(--muted);
  font-size: clamp(20px, 2.25vw, 34px);
  line-height: 1.6;
  margin: 0 0 var(--space-5);
  max-width: 710px;
  white-space: pre-line;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 64px;
  border: 0;
  border-radius: var(--radius);
  background: var(--text);
  color: var(--background);
  padding: var(--space-2) var(--space-4);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.3;
  transition: opacity var(--motion);
}
.button:hover {
  opacity: 0.9;
}
.button:disabled {
  background: var(--disabled);
}
.button svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 1.6;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.hero-button {
  min-width: 266px;
  min-height: 76px;
}
.promise {
  margin: var(--space-3) 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}
.hero-art {
  display: block;
  width: 112%;
  height: 714px;
  object-fit: contain;
  max-width: none;
  margin-left: -7%;
}
.principles {
  border-top: 1px solid var(--line);
  padding-block: var(--space-5);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.principles article {
  padding-inline: var(--space-6) 0;
  border-left: 1px solid var(--line);
}
.principles article:first-child {
  padding-left: 0;
  border-left: 0;
}
.principles article:last-child {
  padding-right: 0;
}
.principles h2 {
  font-size: 28px;
  font-weight: 650;
  margin: 0 0 var(--space-2);
  letter-spacing: -0.5px;
}
.principles p {
  color: var(--muted);
  font-size: 20px;
  line-height: 1.7;
  margin: 0;
}
.downloads {
  padding-block: var(--space-8) var(--space-7);
}
.downloads > h2 {
  font-size: clamp(34px, 4.2vw, 64px);
  line-height: 1.2;
  letter-spacing: -2px;
  margin: 0 0 var(--space-2);
  font-weight: 700;
}
.section-description {
  font-size: 28px;
  color: var(--muted);
  margin: 0 0 var(--space-5);
  line-height: 1.6;
}
.platforms {
  display: flex;
  gap: var(--space-4);
  border-bottom: 1px solid var(--line);
  margin-bottom: var(--space-4);
}
.platforms button {
  color: var(--muted);
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: var(--space-2) var(--space-2);
  font-size: 23px;
  margin-bottom: -1px;
}
.platforms button[aria-selected='true'] {
  border-color: var(--text);
  color: var(--text);
  font-weight: 600;
}
.release-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: var(--space-5);
  align-items: start;
  min-height: 480px;
}
.release-details h3 {
  font-size: 40px;
  margin: var(--space-1) 0 var(--space-2);
  letter-spacing: -1px;
  font-weight: 650;
}
#architecture-description {
  font-size: 23px;
  color: var(--muted);
  margin: 0 0 var(--space-3);
}
label {
  display: block;
  color: var(--muted);
  font-size: 18px;
  margin-bottom: var(--space-1);
}
select {
  width: min(100%, 476px);
  font-size: 20px;
  min-height: 50px;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: var(--space-1) var(--space-2);
  background: var(--background);
}
details {
  border-top: 1px solid var(--line);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
}
summary {
  cursor: pointer;
  font-size: 20px;
  font-weight: 600;
}
details p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
  margin: var(--space-2) 0;
}
#release-notes {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
code {
  display: block;
  overflow-wrap: anywhere;
  font-size: 15px;
  line-height: 1.7;
  padding: var(--space-2);
  background: var(--surface);
  border-radius: 5px;
  color: var(--muted);
  margin-top: var(--space-2);
}
.download-summary {
  background: var(--surface);
  border-radius: var(--panel-radius);
  padding: var(--space-4);
}
.latest-label {
  font-size: 18px;
  margin: 0 0 var(--space-2);
}
.release-version {
  font-size: 62px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -2px;
  margin: 0 0 var(--space-1);
  overflow-wrap: anywhere;
}
.release-version.message {
  font-size: 32px;
  letter-spacing: -0.5px;
  min-height: 72px;
  display: flex;
  align-items: center;
}
#release-size {
  font-size: 23px;
  color: var(--muted);
  margin: 0 0 var(--space-4);
  min-height: 27px;
}
.download-summary .button {
  width: 100%;
}
.download-help {
  font-size: 17px;
  color: var(--muted);
  line-height: 1.6;
  margin: var(--space-2) 0 0;
}
.footer {
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: var(--space-3);
  color: var(--muted);
  font-size: 15px;
}
.footer > div {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.footer .wordmark {
  color: var(--text);
  font-size: 28px;
}
.footer > div > span {
  padding-left: var(--space-3);
  border-left: 1px solid var(--line);
}
html[lang='en'] h1 {
  white-space: normal;
  font-size: clamp(42px, 5vw, 76px);
}
html[lang='en'] .hero-description {
  font-size: clamp(20px, 2vw, 29px);
}
@media (max-width: 1000px) {
  .hero {
    min-height: 590px;
  }
  .hero-art {
    height: 590px;
  }
  h1 {
    white-space: normal;
    letter-spacing: -2px;
  }
  .hero-description {
    font-size: 24px;
  }
  .principles article {
    padding-inline: var(--space-3);
  }
  .principles h2 {
    font-size: 24px;
  }
  .principles p {
    font-size: 17px;
  }
  .release-details h3 {
    font-size: 32px;
  }
  .release-version {
    font-size: 48px;
  }
}
@media (max-width: 700px) {
  nav {
    gap: var(--space-3);
    font-size: 15px;
  }
  .wordmark {
    font-size: 28px;
  }
  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
    padding-block: var(--space-5) var(--space-2);
  }
  h1 {
    font-size: 42px;
    white-space: normal;
    margin-bottom: var(--space-3);
  }
  .hero-description {
    font-size: 22px;
    margin-bottom: var(--space-4);
  }
  .hero-button {
    min-height: 60px;
    min-width: 230px;
    font-size: 20px;
  }
  .promise {
    font-size: 14px;
  }
  .hero-art {
    width: 100%;
    height: auto;
    margin: var(--space-3) 0 0;
    max-height: 380px;
    object-fit: contain;
  }
  .principles {
    grid-template-columns: 1fr;
    padding-block: var(--space-4);
    gap: var(--space-3);
  }
  .principles article {
    border: 0;
    padding: 0;
  }
  .principles h2 {
    font-size: 23px;
    margin-bottom: var(--space-1);
  }
  .downloads {
    padding-block: var(--space-6);
  }
  .downloads > h2 {
    font-size: 32px;
    letter-spacing: -1px;
    text-wrap: balance;
  }
  .section-description {
    font-size: 21px;
    margin-bottom: var(--space-3);
  }
  .platforms {
    gap: var(--space-2);
  }
  .platforms button {
    font-size: 18px;
    padding: var(--space-2) var(--space-1);
  }
  .release-layout {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .release-details h3 {
    font-size: 29px;
  }
  .download-summary {
    padding: var(--space-3);
  }
  .release-version {
    font-size: 48px;
  }
  .footer {
    align-items: start;
    font-size: 13px;
  }
  .footer > div {
    align-items: start;
    flex-direction: column;
    gap: var(--space-1);
  }
  .footer > div > span {
    padding: 0;
    border: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .button {
    transition: none;
  }
}