:root {
  color-scheme: dark;
  --bg: #28272c;
  --ink: #efeee8;
  --muted: #aaa9ae;
  --green: #83c490;
  --pale: #c1dec5;
  --line: #454449;
  --paper: #eeeee7;
  --dark: #303632;
  --radius: 20px;
  font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 30px;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
}
button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 6px;
}
button {
  cursor: pointer;
}
.wrap {
  width: min(1120px, calc(100% - 80px));
  margin-inline: auto;
}
.skip {
  position: absolute;
  top: -80px;
  left: 20px;
  padding: 15px;
  background: var(--green);
  color: var(--bg);
  z-index: 10;
}
.skip:focus {
  top: 12px;
}
.site-header {
  height: 106px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.wordmark {
  display: inline-flex;
  gap: 12px;
  align-items: center;
}
.wordmark strong {
  font-size: 23px;
  letter-spacing: 2px;
}
.wordmark span {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 3px;
  border-left: 1px solid var(--line);
  padding-left: 14px;
}
.site-header nav {
  display: flex;
  gap: 34px;
  font-size: 14px;
  align-items: center;
}
.site-header nav a:hover {
  color: var(--green);
}
.github-link {
  border: 1px solid var(--line);
  padding: 11px 17px;
  border-radius: 30px;
}
.hero {
  text-align: center;
  padding-top: 70px;
  overflow: hidden;
}
.eyebrow {
  font-size: 11px;
  letter-spacing: 2.5px;
  font-weight: 600;
  line-height: 1.6;
}
.hero .eyebrow {
  color: var(--pale);
}
.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  margin: 0 9px 1px 0;
}
h1 {
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: 94px;
  font-weight: 500;
  letter-spacing: 10px;
  padding-left: 10px;
  line-height: 1.3;
  margin: 19px 0 14px;
}
.slogan {
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: 23px;
  letter-spacing: 4px;
  padding-left: 4px;
  margin: 0;
  white-space: nowrap;
}
.hero-description {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
  margin: 30px 0 24px;
}
.actions {
  display: flex;
  justify-content: center;
  gap: 14px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 53px;
  border-radius: 8px;
  padding: 0 24px;
  font-size: 14px;
  font-weight: 600;
  transition:
    background 0.2s,
    transform 0.2s;
}
.button svg {
  width: 18px;
  height: 18px;
}
.button:hover {
  transform: translateY(-2px);
}
.primary {
  background: var(--green);
  color: #1e3223;
}
.primary:hover {
  background: #a0d0a9;
}
.secondary {
  border: 1px solid #66646b;
}
.secondary:hover {
  background: #39383e;
}
.release-meta {
  font-size: 11px;
  color: #aaa9ae;
  margin: 16px 0 0;
  letter-spacing: 0.3px;
}
.release-meta span {
  padding: 0 7px;
}
.install-note {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.8;
  margin: 12px auto 0;
  max-width: 540px;
}
.install-note a {
  color: var(--pale);
  display: inline-block;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.download-actions {
  margin: 25px 0 10px;
}
.hero-screens {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 26px;
  margin: 68px auto 0;
  height: 490px;
  position: relative;
}
.hero-screens::before {
  content: "";
  position: absolute;
  inset: 20% 8% -50%;
  border-radius: 50%;
  background: radial-gradient(ellipse, #83c49017, transparent 66%);
  pointer-events: none;
}
.phone {
  position: relative;
  background: #28272c;
  border: 5px solid #45444a;
  box-shadow: 0 22px 50px #0004;
  border-radius: 29px;
  overflow: hidden;
  line-height: 0;
  width: 254px;
  flex: none;
}
.phone img {
  width: 100%;
  height: auto;
}
.hero-screens .center {
  z-index: 2;
}
.hero-screens .side {
  width: 228px;
  margin-top: 55px;
  opacity: 0.82;
}
.hero-screens .left {
  transform: rotate(-5deg);
}
.hero-screens .right {
  transform: rotate(5deg);
}
.principles {
  position: relative;
  z-index: 3;
  background: var(--bg);
  display: flex;
  justify-content: center;
  gap: 0;
  padding: 33px 0 37px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: #cccdc8;
}
.principles span {
  padding: 0 35px;
}
.principles span + span {
  border-left: 1px solid var(--line);
}
.light-section {
  background: var(--paper);
  color: var(--dark);
}
.features {
  padding: 85px 0 90px;
}
.section-heading {
  text-align: center;
}
.section-heading .eyebrow {
  color: #697b6c;
}
h2 {
  font-size: 39px;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: 0.5px;
  margin: 15px 0 17px;
}
.section-heading > p:last-child {
  font-size: 14px;
  color: #737971;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 42px;
  margin-top: 66px;
}
.feature-grid article {
  border-top: 1px solid #c3c9be;
  padding-top: 20px;
}
.feature-index {
  font-size: 11px;
  letter-spacing: 1px;
  color: #5d7361;
}
.feature-grid h3 {
  font-weight: 500;
  font-size: 21px;
  margin: 23px 0 15px;
}
.feature-grid p {
  font-size: 14px;
  line-height: 1.95;
  color: #676e66;
  margin: 0;
}
.preview-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: center;
  padding-block: 100px;
}
.preview-copy > .eyebrow {
  color: var(--green);
}
.preview-copy > p:not(.eyebrow) {
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 340px;
}
.preview-tabs {
  display: flex;
  flex-direction: column;
  margin-top: 30px;
  gap: 0;
  max-width: 350px;
}
.preview-tabs button {
  padding: 17px 14px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 17px;
  border-radius: 0;
}
.preview-tabs button span {
  font-size: 12px;
}
.preview-tabs button[aria-selected="true"] {
  background: #343d37;
  color: var(--pale);
  border-left: 3px solid var(--green);
  padding-left: 11px;
}
.preview-tabs button:hover {
  color: var(--pale);
}
.preview-copy .caption {
  font-size: 11px !important;
  margin-top: 21px;
}
.preview-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse, #83c49015, transparent 68%);
}
.preview-stage .phone {
  width: 284px;
}
.privacy-section {
  padding-block: 85px;
}
.privacy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
}
.privacy-grid .eyebrow {
  color: #697b6c;
}
.privacy-grid h2 {
  margin-bottom: 0;
}
.privacy-grid p {
  font-size: 14px;
  line-height: 1.95;
  color: #677064;
}
.privacy-grid .lead {
  font-size: 22px;
  color: var(--dark);
  line-height: 1.7;
  margin-top: 12px;
}
.backup-note {
  border-left: 2px solid #839885;
  padding-left: 15px;
  margin: 24px 0;
}
.text-link {
  font-size: 13px;
  border-bottom: 1px solid #8c9b8a;
  padding-bottom: 6px;
}
.download-section {
  text-align: center;
  padding-block: 88px 76px;
}
.download-section > .eyebrow {
  color: var(--green);
  margin: 17px 0;
}
.download-section h2 {
  font-size: 33px;
}
.download-section > p:not(.eyebrow) {
  font-size: 13px;
  color: var(--muted);
}
.download-section > .button {
  min-width: 200px;
  margin: 21px 0 10px;
}
.download-links {
  display: flex;
  gap: 14px;
  justify-content: center;
}
.download-links a {
  border-bottom: 1px solid #69676e;
  padding-bottom: 3px;
}
.download-section details {
  max-width: 620px;
  margin: 38px auto 0;
  text-align: left;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 18px;
  font-size: 12px;
  line-height: 1.85;
}
.download-section summary {
  cursor: pointer;
  color: #c8c8c7;
}
.download-section details p {
  margin-bottom: 0;
}
footer {
  border-top: 1px solid var(--line);
  padding-block: 32px 30px;
  color: var(--muted);
  font-size: 11px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 27px;
}
.footer-top > div {
  display: flex;
  gap: 27px;
  font-size: 12px;
}
.footer-top .wordmark strong {
  font-size: 18px;
  color: var(--ink);
}
footer p {
  line-height: 1.8;
  margin: 7px 0;
}
footer p a {
  text-decoration: underline;
  text-underline-offset: 3px;
}
@media (min-width: 1500px) {
  .hero {
    padding-top: 82px;
  }
  .hero-screens {
    height: 520px;
  }
}
@media (max-width: 800px) {
  .wrap {
    width: calc(100% - 44px);
  }
  .site-header {
    height: 83px;
  }
  .site-header nav {
    gap: 20px;
  }
  .hero {
    padding-top: 54px;
  }
  h1 {
    font-size: 78px;
  }
  .hero-screens {
    gap: 16px;
    height: 423px;
    margin-top: 56px;
  }
  .hero-screens .center {
    width: 224px;
  }
  .hero-screens .side {
    width: 194px;
  }
  .principles span {
    padding: 0 23px;
  }
  .feature-grid {
    gap: 25px;
  }
  .preview-section {
    gap: 35px;
    padding-block: 75px;
  }
  .privacy-grid {
    gap: 40px;
  }
  .preview-stage .phone {
    width: 252px;
  }
  h2 {
    font-size: 32px;
  }
  .feature-grid h3 {
    font-size: 18px;
  }
}
@media (max-width: 560px) {
  .wrap {
    width: calc(100% - 40px);
  }
  .wordmark {
    gap: 7px;
  }
  .wordmark span {
    display: none;
  }
  .wordmark strong {
    font-size: 21px;
  }
  .site-header nav {
    font-size: 12px;
    gap: 18px;
  }
  .github-link {
    padding: 8px 11px;
  }
  .hero {
    padding-top: 46px;
  }
  .eyebrow {
    font-size: 9px;
    letter-spacing: 2px;
  }
  h1 {
    font-size: 70px;
    margin-top: 18px;
    margin-bottom: 14px;
  }
  .slogan {
    font-size: 20px;
    letter-spacing: 2px;
    padding-left: 2px;
  }
  .hero-description {
    font-size: 13px;
    margin-top: 24px;
    line-height: 1.9;
  }
  .actions {
    gap: 10px;
  }
  .button {
    font-size: 12px;
    padding: 0 16px;
    min-height: 48px;
    gap: 8px;
  }
  .release-meta {
    font-size: 10px;
    margin-top: 16px;
  }
  .hero-screens {
    height: 370px;
    gap: 10px;
    margin-top: 43px;
    width: calc(100% + 40px);
    margin-left: -20px;
  }
  .hero-screens .center {
    width: 195px;
  }
  .hero-screens .side {
    width: 156px;
    margin-top: 45px;
    opacity: 0.5;
  }
  .phone {
    border-width: 4px;
    border-radius: 23px;
  }
  .principles {
    font-size: 10px;
    padding: 24px 0;
    justify-content: space-between;
  }
  .principles span {
    padding: 0 12px;
  }
  .principles span:first-child {
    padding-left: 0;
  }
  .principles span:last-child {
    padding-right: 0;
  }
  .features {
    padding-block: 57px;
  }
  .section-heading h2 {
    font-size: 30px;
  }
  .section-heading > p:last-child {
    font-size: 12px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
    gap: 29px;
    margin-top: 38px;
  }
  .feature-grid article {
    padding-top: 17px;
  }
  .feature-grid h3 {
    font-size: 20px;
    margin: 14px 0 10px;
  }
  .feature-grid p {
    font-size: 13px;
  }
  .preview-section {
    grid-template-columns: 1fr;
    gap: 29px;
    padding-block: 59px;
  }
  .preview-copy {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .preview-copy h2 {
    font-size: 30px;
  }
  .preview-copy > p:not(.eyebrow) {
    font-size: 13px;
    max-width: 290px;
  }
  .preview-tabs {
    flex-direction: row;
    margin-top: 22px;
    width: 100%;
    max-width: none;
  }
  .preview-tabs button {
    font-size: 13px;
    text-align: center;
    justify-content: center;
    flex: 1;
    padding: 13px 0 !important;
  }
  .preview-tabs button span {
    display: none;
  }
  .preview-tabs button[aria-selected="true"] {
    border-left: 0;
    border-bottom: 2px solid var(--green);
  }
  .preview-copy .caption {
    margin: 14px 0 0;
  }
  .preview-stage .phone {
    width: 245px;
  }
  .privacy-section {
    padding-block: 55px;
  }
  .privacy-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .privacy-grid h2 {
    font-size: 30px;
  }
  .privacy-grid .lead {
    font-size: 19px;
  }
  .privacy-grid p {
    font-size: 13px;
  }
  .download-section {
    padding-block: 59px 45px;
  }
  .download-section h2 {
    font-size: 25px;
  }
  .download-section > p:not(.eyebrow) {
    font-size: 12px;
  }
  .download-section details {
    font-size: 11px;
  }
  .footer-top {
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 23px;
  }
  .footer-top > div {
    gap: 13px;
    font-size: 10px;
  }
  .footer-top .wordmark img {
    width: 22px;
    height: 22px;
  }
  .footer-top .wordmark strong {
    font-size: 15px;
  }
  footer {
    font-size: 10px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .button {
    transition: none;
  }
  .button:hover {
    transform: none;
  }
}