:root {
  --paper: #f7f8f2;
  --white: #fff;
  --ink: #183835;
  --muted: #61716c;
  --teal: #087b71;
  --line: #dce3d9;
  --pale: #eaf0e5;
  --radius: 20px;
  --font: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color-scheme: light;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  line-height: 1.65;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
  cursor: pointer;
}
a, button, summary {
  -webkit-tap-highlight-color: transparent;
}
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 5px;
}
img {
  display: block;
  max-width: 100%;
}
button {
  color: inherit;
}
h1, h2, h3, p, figure {
  margin: 0;
}
h1, h2, h3 {
  line-height: 1.3;
}
h1, h2 {
  letter-spacing: -.055em;
}
.shell {
  width: min(1180px,calc(100% - 88px));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  top: -100px;
  left: 20px;
  padding: 12px 20px;
  z-index: 99;
  background: var(--ink);
  color: #fff;
}
.skip-link:focus {
  top: 10px;
}
.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(247,248,242,.95);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
}
.nav {
  height: 88px;
  display: flex;
  align-items: center;
  gap: 44px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.04em;
  white-space: nowrap;
}
.brand img {
  margin-right: 2px;
}
.brand-en {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -.045em;
}
.nav nav {
  display: flex;
  gap: 29px;
  margin-left: auto;
}
.nav nav a, .language-link {
  font-size: 13px;
  color: #4f6660;
}
.nav a:hover {
  color: var(--teal);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 27px;
}
.nav-download {
  border: 1px solid #bccbc3;
  padding: 9px 17px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}
.nav-download:hover {
  background: var(--pale);
}
.hero {
  padding-block: 84px 70px;
  display: grid;
  grid-template-columns: 1fr 1.03fr;
  gap: 50px;
  align-items: center;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--teal);
  margin-bottom: 25px;
}
.live-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #319b76;
  flex-shrink: 0;
}
.hero h1 {
  font-size: clamp(48px,4.55vw,65px);
  font-weight: 650;
  line-height: 1.2;
}
.hero h1 span, .closing h2 span {
  color: var(--teal);
}
.hero-intro {
  font-size: 16px;
  line-height: 1.95;
  color: var(--muted);
  margin-top: 25px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 25px;
  margin-top: 30px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 52px;
  padding: 13px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  transition: background .15s,transform .15s;
  border: 0;
}
.button:hover {
  transform: translateY(-2px);
}
.button-primary {
  color: #fff;
  background: var(--teal);
  box-shadow: 0 3px 0 rgba(17,69,58,.1);
}
.button-primary:hover {
  background: #07695f;
}
.button-primary>span {
  font-size: 23px;
  line-height: 1;
}
.text-link {
  font-size: 13px;
  font-weight: 550;
  white-space: nowrap;
}
.text-link:hover {
  text-decoration: underline;
  text-underline-offset: 5px;
}
.download-meta {
  font-size: 11px;
  color: var(--muted);
  margin-top: 14px;
  letter-spacing: .025em;
}
.verified {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 15px;
  font-size: 11px;
  color: #547468;
}
.verified svg {
  width: 15px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
}
.demo-stage {
  min-height: 535px;
  position: relative;
  background: #e8eee4;
  border: 1px solid #dae3d5;
  border-radius: 18px;
  padding: 20px 25px 55px;
  isolation: isolate;
}
.demo-stage:before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: .55;
  background-image: radial-gradient(#b9c8b5 .65px,transparent .65px);
  background-size: 12px 12px;
  border-radius: inherit;
}
.demo-top {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: #65796b;
  letter-spacing: .08em;
}
.demo-dots {
  font-size: 8px;
  letter-spacing: 3px;
  opacity: .5;
}
.reading-sheet {
  margin-top: 23px;
  margin-right: 38px;
  padding: 29px 32px 82px;
  background: #fefef8;
  border-radius: 4px;
  box-shadow: 0 6px 24px #2d502b0c;
  transform: rotate(-2.5deg);
  border: 1px solid #dfe3d5;
}
.paper-category {
  font-size: 8px;
  font-weight: 600;
  letter-spacing: .17em;
  color: #829078;
}
.reading-sheet h2 {
  font-family: Georgia,"Times New Roman",serif;
  font-weight: 400;
  font-size: 31px;
  line-height: 1.13;
  letter-spacing: -.025em;
  margin-top: 16px;
  color: #344c3b;
}
.paper-body {
  font-family: Georgia,"Times New Roman",serif;
  font-size: 14px;
  line-height: 1.9;
  color: #73816d;
  margin-top: 18px;
}
.word {
  display: inline;
  border: 0;
  background: transparent;
  color: #345a43;
  font: inherit;
  line-height: inherit;
  padding: 1px 2px;
  border-bottom: 1px solid #afc5a5;
  border-radius: 2px;
  transition: background .2s;
}
.word:hover, .word.active {
  background: #d4e8bb;
  color: #2f5037;
  border-bottom-color: #809e63;
}
.paper-lines {
  margin-top: 21px;
  display: grid;
  gap: 9px;
}
.paper-lines span {
  display: block;
  width: 95%;
  height: 3px;
  background: #e8eadf;
  border-radius: 2px;
}
.paper-lines span:nth-child(2) {
  width: 88%;
}
.paper-lines span:nth-child(3) {
  width: 63%;
}
.lookup-panel {
  position: absolute;
  z-index: 2;
  bottom: 78px;
  right: 21px;
  width: 300px;
  background: rgba(255,255,255,.97);
  border: 1px solid #d6e0d7;
  border-radius: 14px;
  padding: 17px 19px 10px;
  box-shadow: 0 20px 45px #213c3620,0 2px 6px #213c3608;
  transform: rotate(1deg);
}
.panel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 9px;
  color: #789084;
}
.panel-top>span {
  display: flex;
  align-items: center;
  gap: 5px;
}
.panel-top>span:first-child {
  font-size: 10px;
  font-weight: 600;
  color: #4b685e;
}
.panel-top img {
  width: 19px;
  height: 19px;
}
.panel-top .live-dot {
  width: 4px;
  height: 4px;
}
.lookup-word-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 11px;
}
.lookup-word-row strong {
  font-size: 26px;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -.04em;
}
.speaker {
  border: 0;
  border-radius: 50%;
  width: 27px;
  height: 27px;
  background: #f0f5ef;
  display: grid;
  place-items: center;
}
.speaker:hover {
  background: #dbeade;
}
.speaker svg {
  width: 14px;
  height: 14px;
  stroke: #638674;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.lookup-phonetic {
  font-size: 10px;
  color: #8a9690;
  margin-top: 2px;
}
.lookup-source {
  font-size: 9px;
  color: #748479;
  margin-top: 17px;
  border-top: 1px solid #e8ece7;
  padding-top: 12px;
}
.definition {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-top: 8px;
}
.pos {
  font-size: 9px;
  color: var(--teal);
  font-weight: 600;
  background: #e6f2ed;
  border-radius: 3px;
  padding: 2px 6px;
}
.definition>span:last-child {
  font-size: 14px;
  font-weight: 600;
}
.lookup-extra {
  font-size: 11px;
  color: #829087;
  margin-top: 7px;
  min-height: 19px;
}
.panel-footer {
  display: flex;
  justify-content: space-between;
  color: #a1ada3;
  font-size: 8px;
  margin-top: 16px;
  padding-top: 7px;
  border-top: 1px solid #edf0eb;
}
.demo-bottom {
  position: absolute;
  bottom: 24px;
  left: 25px;
  right: 25px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.demo-bottom p {
  font-size: 10px;
  color: #536f5b;
}
.demo-bottom kbd {
  font: inherit;
  font-size: 9px;
  padding: 3px 6px;
  margin: 0 2px;
  background: #f9fbf4;
  border: 1px solid #d1dcc8;
  border-bottom-width: 2px;
  border-radius: 4px;
}
.demo-bottom>span {
  font-size: 8px;
  color: #71856a;
}
.demo-footnote {
  position: absolute;
  bottom: -27px;
  left: 0;
  right: 0;
  font-size: 9px;
  color: #839080;
  text-align: center;
}
.facts-strip {
  display: flex;
  justify-content: center;
  gap: 85px;
  align-items: center;
  padding-block: 27px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.facts-strip>span {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #64796b;
  font-size: 12px;
  letter-spacing: .025em;
}
.facts-strip>span>span {
  font-size: 20px;
  color: #5d826c;
}
.section {
  padding-block: 110px;
}
.kicker {
  color: var(--teal);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .09em;
  margin-bottom: 21px;
}
.section h2, .feature-section h2 {
  font-size: 39px;
  line-height: 1.33;
  font-weight: 600;
}
.section-heading>p:last-child, .section-intro, .feature-heading>p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.9;
  margin-top: 19px;
}
.flow {
  display: grid;
  grid-template-columns: .8fr 1.7fr;
  gap: 80px;
}
.flow-steps {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 30px;
  padding-top: 6px;
}
.step-num {
  display: inline-block;
  font-family: Georgia,serif;
  font-size: 30px;
  font-style: italic;
  font-weight: 400;
  color: #94ab92;
  border-bottom: 1px solid #bdcdb4;
  padding-bottom: 10px;
  margin-bottom: 26px;
  width: 100%;
}
.flow h3 {
  font-size: 17px;
  font-weight: 600;
}
.flow-step p {
  font-size: 12px;
  line-height: 1.95;
  color: var(--muted);
  margin-top: 13px;
}
.feature-section {
  padding-block: 90px 100px;
  background: #eef2e9;
  border-block: 1px solid #e0e7db;
}
.feature-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 35px;
}
.feature-heading>p {
  margin-bottom: 7px;
  max-width: 340px;
}
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 48px;
  column-gap: 65px;
}
.feature {
  display: flex;
  align-items: flex-start;
  gap: 22px;
  border-top: 1px solid #ccd8c6;
  padding: 32px 0 34px;
}
.feature-letter {
  width: 35px;
  height: 35px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  border: 1px solid #bdcfb7;
  border-radius: 7px;
  color: #557e5d;
  font-family: Georgia,serif;
  font-style: italic;
  font-size: 18px;
}
.feature h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 12px;
}
.feature p {
  font-size: 13px;
  line-height: 1.9;
  color: var(--muted);
}
.feature small {
  display: block;
  font-size: 10px;
  line-height: 1.85;
  color: #798970;
  margin-top: 13px;
}
.faq {
  max-width: 870px;
}
.faq>h2 {
  font-size: 29px;
  margin-bottom: 35px;
}
.faq-list {
  border-top: 1px solid var(--line);
}
.faq-list details {
  border-bottom: 1px solid var(--line);
}
summary {
  list-style: none;
  cursor: pointer;
}
summary::-webkit-details-marker {
  display: none;
}
.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  font-size: 14px;
  font-weight: 550;
}
.faq-list summary>span {
  font-size: 24px;
  font-weight: 300;
  color: #65856f;
  line-height: 1;
}
.faq-list details[open] summary>span {
  transform: rotate(45deg);
}
.faq-list details>p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.95;
  max-width: 760px;
  padding: 0 28px 23px 0;
}
.faq-list a {
  text-decoration: underline;
  text-underline-offset: 3px;
  color: var(--teal);
}
.closing {
  text-align: center;
  padding: 32px 0 83px;
  border-top: 1px solid var(--line);
}
.closing>img {
  margin: 25px auto 24px;
}
.closing .kicker {
  font-size: 10px;
  margin-bottom: 18px;
}
.closing h2 {
  font-size: 45px;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 29px;
}
.closing .download-meta {
  margin-top: 14px;
}
.release-link {
  display: inline-block;
  font-size: 11px;
  margin-top: 19px;
  color: var(--teal);
}
.checksum {
  margin: 28px auto 0;
  max-width: 630px;
  color: var(--muted);
  font-size: 11px;
}
.checksum summary {
  display: inline-block;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.checksum summary:after {
  content: " +";
}
.checksum[open] summary:after {
  content: " −";
}
.checksum p {
  margin: 15px 0 10px;
}
.checksum label {
  display: block;
  font-size: 10px;
}
.checksum code {
  display: block;
  overflow-wrap: anywhere;
  padding: 12px;
  font-size: 10px;
  background: #eaf0e6;
  border: 1px solid #d7e2cf;
  border-radius: 6px;
  margin-top: 8px;
  user-select: all;
}
.checksum button {
  border: 1px solid #c4d3be;
  background: transparent;
  font-size: 10px;
  padding: 6px 12px;
  margin-top: 10px;
  border-radius: 4px;
}
.checksum button:hover {
  background: var(--pale);
}
#copy-status {
  margin-left: 10px;
}
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-block: 27px 34px;
  font-size: 10px;
  color: #758573;
}
.footer-brand {
  font-size: 17px;
  font-weight: 650;
  letter-spacing: -.04em;
  color: var(--ink);
}
.site-footer>div>p {
  margin-top: 6px;
  font-size: 10px;
}
.site-footer>div:last-child {
  text-align: right;
}
.site-footer>div:last-child a {
  display: inline-block;
  margin-left: 18px;
  margin-top: 9px;
}
.site-footer a:hover {
  color: var(--teal);
}
dialog {
  max-width: 420px;
  width: calc(100% - 40px);
  border: 1px solid var(--line);
  border-radius: 15px;
  padding: 30px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 20px 70px #10261f35;
}
dialog::backdrop {
  background: #132c2770;
  backdrop-filter: blur(3px);
}
dialog h2 {
  font-size: 23px;
}
dialog p {
  font-size: 14px;
  color: var(--muted);
  margin-block: 18px 25px;
}
dialog .button {
  min-height: 42px;
  font-size: 12px;
}
html[lang=en] .hero h1 {
  font-size: clamp(47px,4.4vw,62px);
}
html[lang=en] .hero-intro {
  font-size: 15px;
}
html[lang=en] .facts-strip {
  gap: 65px;
}
html[lang=en] .feature h3 {
  font-size: 18px;
}
@media(min-width:1450px) {
  .hero {
    padding-block: 100px 90px;
    gap: 75px;
  }
  .hero h1 {
    font-size: 65px;
  }
  .demo-stage {
    min-height: 550px;
  }
}
@media(max-width:1100px) {
  .shell {
    width: calc(100% - 64px);
  }
  .nav {
    gap: 25px;
  }
  .nav nav {
    gap: 20px;
  }
  .nav-actions {
    gap: 20px;
  }
  .hero {
    gap: 30px;
    padding-top: 70px;
  }
  .hero h1, html[lang=en] .hero h1 {
    font-size: 49px;
  }
  .hero-intro, html[lang=en] .hero-intro {
    font-size: 14px;
  }
  .hero-actions {
    gap: 18px;
  }
  .hero .button {
    font-size: 12px;
    padding: 12px 17px;
  }
  .hero .text-link {
    font-size: 11px;
  }
  .demo-stage {
    padding-inline: 17px;
    min-height: 510px;
  }
  .reading-sheet {
    padding: 25px 24px 78px;
    margin-right: 17px;
  }
  .reading-sheet h2 {
    font-size: 29px;
  }
  .lookup-panel {
    right: 14px;
    width: 275px;
    bottom: 80px;
  }
  .demo-bottom {
    left: 17px;
    right: 17px;
    flex-wrap: wrap;
    gap: 8px;
  }
  .demo-bottom>span {
    width: 100%;
    font-size: 8px;
  }
  .facts-strip, html[lang=en] .facts-strip {
    gap: 45px;
  }
  .facts-strip>span {
    font-size: 11px;
  }
  .flow {
    gap: 40px;
    grid-template-columns: .85fr 1.7fr;
  }
  .flow-steps {
    gap: 20px;
  }
  .section h2, .feature-section h2 {
    font-size: 34px;
  }
  .flow h3 {
    font-size: 15px;
  }
  .feature-grid {
    column-gap: 40px;
  }
  .brand-en {
    display: none;
  }
}
@media(max-width:800px) {
  .shell {
    width: calc(100% - 48px);
  }
  .nav {
    height: 76px;
    gap: 20px;
  }
  .nav nav {
    display: none;
  }
  .nav-actions {
    margin-left: auto;
  }
  .brand {
    font-size: 20px;
  }
  .nav-download {
    font-size: 11px;
    padding: 8px 12px;
  }
  .language-link {
    font-size: 11px;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 55px;
    padding-block: 58px 65px;
  }
  .hero-copy {
    text-align: center;
  }
  .eyebrow, .verified {
    justify-content: center;
  }
  .eyebrow {
    font-size: 11px;
  }
  .hero h1, html[lang=en] .hero h1 {
    font-size: 56px;
  }
  .hero-intro, html[lang=en] .hero-intro {
    font-size: 15px;
  }
  .hero-actions {
    justify-content: center;
    gap: 25px;
  }
  .hero .button {
    font-size: 14px;
    padding: 13px 24px;
  }
  .hero .text-link {
    font-size: 13px;
  }
  .demo-stage {
    width: min(540px,100%);
    margin-inline: auto;
    min-height: 545px;
    padding-inline: 28px;
  }
  .reading-sheet {
    margin-right: 45px;
    padding: 28px 32px 90px;
  }
  .reading-sheet h2 {
    font-size: 33px;
  }
  .paper-body {
    font-size: 15px;
  }
  .lookup-panel {
    width: 302px;
    right: 23px;
    bottom: 77px;
  }
  .demo-bottom {
    left: 28px;
    right: 28px;
    flex-wrap: nowrap;
  }
  .demo-bottom>span {
    width: auto;
    font-size: 8px;
  }
  .facts-strip, html[lang=en] .facts-strip {
    gap: 27px;
    padding-block: 22px;
  }
  .facts-strip>span {
    font-size: 10px;
    gap: 7px;
  }
  .facts-strip>span>span {
    font-size: 17px;
  }
  .section {
    padding-block: 75px;
  }
  .flow {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  .section-heading>p:last-child {
    max-width: 440px;
  }
  .flow-steps {
    gap: 32px;
  }
  .flow h3 {
    font-size: 17px;
  }
  .step-num {
    margin-bottom: 20px;
  }
  .feature-section {
    padding-block: 65px;
  }
  .feature-heading {
    align-items: start;
    flex-direction: column;
    gap: 0;
  }
  .feature-heading>p {
    max-width: none;
  }
  .feature-grid {
    margin-top: 30px;
    column-gap: 30px;
  }
  .feature {
    gap: 14px;
    padding-block: 25px;
  }
  .feature-letter {
    width: 29px;
    height: 29px;
    font-size: 15px;
  }
  .feature h3, html[lang=en] .feature h3 {
    font-size: 17px;
  }
  .closing h2 {
    font-size: 40px;
  }
  .closing {
    padding-block: 20px 60px;
  }
  .faq>h2 {
    font-size: 27px;
  }
  .nav .brand img {
    width: 34px;
    height: 34px;
  }
}
@media(max-width:480px) {
  .shell {
    width: calc(100% - 36px);
  }
  .nav {
    gap: 10px;
    height: 70px;
  }
  .brand {
    gap: 5px;
    font-size: 19px;
  }
  .nav-actions {
    gap: 15px;
  }
  .nav-download {
    padding: 7px 9px;
    font-size: 10px;
  }
  .nav-download>span {
    display: none;
  }
  .language-link {
    font-size: 10px;
  }
  .hero {
    padding-top: 43px;
    gap: 43px;
  }
  .hero h1, html[lang=en] .hero h1 {
    font-size: 43px;
  }
  .hero-intro, html[lang=en] .hero-intro {
    font-size: 13px;
    line-height: 1.95;
    margin-top: 22px;
  }
  .hero-actions {
    gap: 20px;
    margin-top: 26px;
  }
  .hero .button {
    font-size: 12px;
    padding: 12px 17px;
    gap: 10px;
    min-height: 48px;
  }
  .hero .text-link {
    font-size: 11px;
  }
  .download-meta {
    font-size: 9px;
  }
  .verified {
    font-size: 10px;
    margin-top: 12px;
  }
  .eyebrow {
    font-size: 10px;
    margin-bottom: 21px;
  }
  .demo-stage {
    min-height: 500px;
    padding: 15px 17px 55px;
  }
  .demo-top {
    font-size: 9px;
    letter-spacing: .02em;
  }
  .reading-sheet {
    padding: 23px 22px 87px;
    margin: 20px 15px 0 0;
  }
  .reading-sheet h2 {
    font-size: 28px;
    margin-top: 12px;
  }
  .paper-body {
    font-size: 13px;
    line-height: 1.95;
    margin-top: 15px;
  }
  .paper-category {
    font-size: 7px;
  }
  .lookup-panel {
    width: 258px;
    right: 12px;
    bottom: 76px;
    padding: 14px 16px 10px;
  }
  .lookup-word-row strong {
    font-size: 24px;
  }
  .lookup-source {
    margin-top: 12px;
  }
  .definition>span:last-child {
    font-size: 13px;
  }
  .lookup-extra {
    font-size: 10px;
  }
  .demo-bottom {
    left: 17px;
    right: 17px;
    flex-wrap: wrap;
    gap: 6px;
    bottom: 18px;
  }
  .demo-bottom>span {
    width: 100%;
    font-size: 8px;
  }
  .demo-bottom p {
    font-size: 9px;
  }
  .demo-footnote {
    font-size: 8px;
    bottom: -24px;
  }
  .facts-strip, html[lang=en] .facts-strip {
    gap: 0;
    justify-content: space-between;
    padding-block: 19px;
  }
  .facts-strip>span {
    font-size: 8px;
    gap: 5px;
  }
  .facts-strip>span>span {
    font-size: 13px;
  }
  .section {
    padding-block: 58px;
  }
  .section h2, .feature-section h2 {
    font-size: 31px;
  }
  .section-heading>p:last-child, .section-intro, .feature-heading>p {
    font-size: 12px;
    margin-top: 15px;
  }
  .kicker {
    font-size: 10px;
    margin-bottom: 16px;
  }
  .flow-steps {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .flow-step {
    display: grid;
    grid-template-columns: 35px 1fr;
    column-gap: 18px;
  }
  .step-num {
    grid-row: span 2;
    align-self: start;
    font-size: 25px;
    border: 0;
    margin: 0;
    padding: 0;
  }
  .flow h3 {
    font-size: 16px;
  }
  .flow-step p {
    margin-top: 7px;
    font-size: 12px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
    margin-top: 24px;
  }
  .feature {
    gap: 18px;
    padding-block: 24px;
  }
  .feature h3, html[lang=en] .feature h3 {
    font-size: 17px;
  }
  .feature p {
    font-size: 12px;
  }
  .feature small {
    font-size: 10px;
  }
  .feature-section {
    padding-block: 55px;
  }
  .faq>h2 {
    font-size: 23px;
    margin-bottom: 25px;
  }
  .faq-list summary {
    font-size: 13px;
    padding-block: 19px;
  }
  .faq-list details>p {
    font-size: 12px;
  }
  .closing h2 {
    font-size: 33px;
  }
  .closing>img {
    width: 73px;
    height: 73px;
    margin-bottom: 22px;
  }
  .closing .button {
    font-size: 12px;
    min-height: 49px;
  }
  .site-footer {
    align-items: start;
    gap: 20px;
    padding-block: 24px;
  }
  .footer-brand {
    font-size: 16px;
  }
  .site-footer>div>p {
    font-size: 8px;
  }
  .site-footer>div:last-child a {
    font-size: 8px;
    margin-left: 10px;
  }
  .site-footer>div:last-child p {
    margin-top: 2px;
  }
  .checksum label {
    font-size: 8px;
  }
  .checksum code {
    font-size: 9px;
  }
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *:before, *:after {
    transition: none!important;
    animation: none!important;
  }
}
/* Keep secondary copy readable. */
.lookup-phonetic, .lookup-extra, .feature small, .site-footer, .demo-footnote {
  color: var(--muted);
}
@media(max-width:380px) {
  .hero-actions {
    flex-direction: column;
    gap: 15px;
  }
  .hero .button {
    white-space: nowrap;
  }
}

/* Direct product naming; emphasize the two characters that form 悬译. */
.hero h1, html[lang=en] .hero h1 { font-size: clamp(36px, 3.7vw, 48px); font-weight: 500; letter-spacing: -.04em; line-height: 1.3; }
.hero-product { white-space: nowrap; }
.hero-product strong { font-weight: 850; }
@media (max-width: 800px) { .hero h1, html[lang=en] .hero h1 { font-size: clamp(32px, 5.8vw, 48px); } }
@media (max-width: 480px) { .hero h1, html[lang=en] .hero h1 { font-size: 31px; } }