:root {
  color-scheme: light;
  --ink: #101014;
  --accent: #6133dc;
  --accent-deep: #4c20bb;
  --paper: #fff;
  --field: #f5f4f9;
  --selected: #e6ddfc;
  --line: #dedde5;
  --answer-shadow: 0 15px 45px rgba(30, 17, 63, .12);
  --page-width: 1160px;
  font-family: "SF Pro", system-ui, sans-serif;
  font-synthesis: none;
  color: var(--ink);
  background: var(--paper);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 30px; }
body { margin: 0; font-size: 16px; 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-thickness: 1px; text-underline-offset: .24em; }
a:hover { color: var(--accent-deep); }
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 3px; }
::selection { color: var(--ink); background: var(--selected); }
html { scrollbar-color: #b2a3d5 var(--field); }
img { display: block; max-width: 100%; }
svg { display: inline-block; vertical-align: middle; }
[hidden] { display: none !important; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.1; text-wrap: balance; }
p { text-wrap: pretty; }
.wrap { width: min(var(--page-width), calc(100% - 96px)); margin-inline: auto; }
.skip { position: absolute; left: 24px; top: -100px; padding: 10px 16px; background: var(--paper); z-index: 20; }
.skip:focus { top: 12px; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 31px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); font-size: 17px; font-weight: 650; letter-spacing: .12em; }
.brand img { width: 30px; height: 30px; }
.site-nav { display: flex; align-items: center; gap: 28px; font-size: 14px; }
.site-nav a { text-decoration: none; }
.site-nav a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--accent); }
.site-nav .nav-mail { display: inline-flex; gap: 8px; align-items: center; font-weight: 600; }
.contact-short { display: none; }
.language { padding-left: 24px; border-left: 1px solid var(--line); }
.arrow { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.hero { padding-top: 52px; }
.hero h1 { font-size: clamp(52px, 6.5vw, 84px); font-weight: 550; letter-spacing: -.04em; line-height: 1.035; max-width: 960px; }
.hero h1 span { display: block; }
.hero-summary { display: flex; align-items: flex-end; justify-content: space-between; gap: 44px; margin-top: 26px; }
.hero-description { max-width: 600px; font-size: 18px; line-height: 1.6; }
.release-note { font-size: 13px; white-space: nowrap; padding-block: 6px; border-bottom: 1px solid var(--line); }
.demo { margin-top: 44px; }
.reading-field { background: var(--field); padding: 34px 40px 0; border-radius: 16px; overflow: hidden; }
.field-top { display: flex; justify-content: space-between; align-items: center; gap: 24px; font-size: 12px; margin-bottom: 24px; }
.field-top .field-name { font-weight: 600; }
.demo-panel { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 390px); gap: 60px; align-items: center; min-height: 272px; }
.source { padding-bottom: 26px; }
.source h2 { font-size: 19px; font-weight: 550; letter-spacing: -.015em; margin-bottom: 17px; }
.source p { font-size: 22px; line-height: 1.75; font-weight: 400; max-width: 29ch; }
mark { background: var(--selected); color: var(--ink); border-radius: 3px; padding: .08em .14em; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.source-note { display: block; font-size: 12px; margin-top: 18px; }
.answer { align-self: center; background: var(--paper); border-radius: 14px; padding: 23px 25px 26px; margin-bottom: 26px; box-shadow: var(--answer-shadow); }
.answer-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.answer-brand { display: flex; align-items: center; gap: 9px; font-size: 12px; font-weight: 650; letter-spacing: .08em; }
.answer-brand img { height: 19px; width: 19px; }
.answer-hint { font-size: 12px; }
.word { font-size: 26px; letter-spacing: -.02em; margin-bottom: 6px; font-weight: 550; }
.pronunciation { font-size: 13px; margin-bottom: 14px; }
.answer p { font-size: 14px; line-height: 1.7; }
.answer .example { margin-top: 14px; }
.answer-label { color: var(--accent-deep); font-size: 12px; font-weight: 500; margin-bottom: 8px; }
.answer-translation { margin-bottom: 17px; }
.demo-controls { display: flex; align-items: center; justify-content: space-between; gap: 24px; border-top: 1px solid var(--line); padding: 16px 0; }
.tabs { display: flex; flex-wrap: wrap; gap: 7px; }
.tabs button { font-size: 13px; border: 1px solid transparent; border-radius: 7px; background: transparent; padding: 7px 15px; }
.tabs button:hover { background: var(--selected); }
.tabs button[aria-selected="true"] { background: var(--paper); border-color: var(--line); font-weight: 600; }
.demo-caption { font-size: 12px; margin-top: 12px; }
.demo-how { font-size: 12px; }
.answer.just-changed { animation: answer-in 260ms cubic-bezier(.16, 1, .3, 1); }
@keyframes answer-in { from { transform: translateY(5px); opacity: .75; } to { transform: translateY(0); opacity: 1; } }
.editorial { padding-block: 92px 85px; display: grid; grid-template-columns: 1fr 1.15fr; gap: 90px; }
.editorial h2 { font-size: clamp(30px, 3.1vw, 42px); font-weight: 550; letter-spacing: -.035em; max-width: 14ch; }
.feature { padding-block: 21px; border-bottom: 1px solid var(--line); }
.feature:first-child { padding-top: 0; }
.feature:last-child { border-bottom: 0; padding-bottom: 0; }
.feature h3 { font-size: 19px; font-weight: 550; letter-spacing: -.015em; margin-bottom: 8px; }
.feature p { font-size: 15px; max-width: 62ch; }
.how { border-top: 1px solid var(--line); padding-block: 52px 66px; }
.how h2 { font-size: 29px; letter-spacing: -.025em; font-weight: 550; }
.steps { list-style: none; margin: 30px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.steps li { position: relative; }
.step-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 9px; }
.step-number { color: var(--accent-deep); font-size: 15px; font-variant-numeric: tabular-nums; }
.step-head h3 { font-size: 18px; font-weight: 550; }
.steps p { font-size: 14px; max-width: 35ch; }
.how-footnote { font-size: 13px; margin-top: 29px; max-width: 85ch; }
.privacy-summary { background: var(--field); }
.privacy-inner { display: grid; grid-template-columns: 1fr 1.15fr; gap: 90px; padding-block: 53px; }
.privacy-inner h2 { font-size: 32px; font-weight: 550; letter-spacing: -.03em; max-width: 16ch; }
.privacy-inner p { font-size: 15px; }
.privacy-inner a { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; margin-top: 18px; }
.about { padding-block: 72px; display: grid; grid-template-columns: 1fr 1.15fr; gap: 90px; }
.about h2 { font-size: 32px; font-weight: 550; letter-spacing: -.03em; }
.about p { font-size: 15px; }
.about .contact-description { margin-top: 15px; }
.company { font-weight: 550; margin-bottom: 12px; }
.company:lang(zh-CN) { letter-spacing: .015em; }
.contact-link { display: inline-flex; align-items: center; gap: 8px; font-size: 17px; margin-top: 22px; overflow-wrap: anywhere; }
.site-footer { border-top: 1px solid var(--line); padding-block: 26px 32px; display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; font-size: 12px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 23px; }
.footer-company { margin-top: 3px; }
.document-header { padding-block: 60px 37px; border-bottom: 1px solid var(--line); }
.document-header h1 { font-size: clamp(42px, 5vw, 64px); font-weight: 550; letter-spacing: -.035em; margin-bottom: 19px; }
.document-header p { max-width: 66ch; font-size: 18px; }
.document-date { font-size: 13px !important; margin-top: 15px; }
.document-layout { display: grid; grid-template-columns: 220px minmax(0, 720px); gap: 80px; padding-block: 43px 80px; }
.document-toc { align-self: start; position: sticky; top: 25px; font-size: 14px; }
.document-toc p { font-weight: 600; margin-bottom: 16px; }
.document-toc ul { padding: 0; margin: 0; list-style: none; }
.document-toc li { margin-block: 10px; }
.document-toc a { text-decoration: none; }
.prose { max-width: 72ch; }
.prose section { margin-bottom: 38px; }
.prose section:last-child { margin-bottom: 0; }
.prose h2 { font-size: 23px; font-weight: 550; letter-spacing: -.02em; margin-bottom: 15px; }
.prose h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.prose p + p { margin-top: 15px; }
.prose ul, .prose ol { padding-left: 22px; margin: 13px 0; }
.prose li { padding-left: 4px; margin-block: 9px; }
.prose a { overflow-wrap: anywhere; }
.contact-note { padding: 22px 25px; background: var(--field); border-radius: 12px; margin-bottom: 35px; }
.contact-note .contact-link { margin-top: 8px; }
.contact-note p { font-size: 14px; }
.faq { border-bottom: 1px solid var(--line); padding: 20px 0; }
.faq:last-child { border-bottom: 0; }
.faq summary { cursor: pointer; font-weight: 550; padding-right: 22px; }
.faq[open] summary { margin-bottom: 13px; }
.faq p { font-size: 15px; }
.not-found { min-height: 58vh; padding-block: 70px; max-width: 760px; }
.not-found h1 { font-size: 56px; font-weight: 550; letter-spacing: -.03em; margin-bottom: 20px; }
.not-found p { margin-bottom: 24px; }
.not-found a { margin-right: 25px; }
:lang(zh-CN) .hero h1 { font-size: clamp(42px, 5.7vw, 74px); letter-spacing: -.035em; line-height: 1.18; }
:lang(zh-CN) .hero-description { max-width: 35em; }
:lang(zh-CN) .source p { font-size: 21px; max-width: 31ch; }
@media (min-width: 1600px) { .hero { padding-top: 72px; } }
@media (max-width: 1050px) {
  .wrap { width: calc(100% - 64px); }
  .demo-panel { gap: 35px; grid-template-columns: minmax(0, 1fr) minmax(0, 340px); }
  .reading-field { padding-inline: 28px; }
  .source p { font-size: 20px; }
  .editorial, .about, .privacy-inner { gap: 45px; }
  .document-layout { grid-template-columns: 175px minmax(0, 1fr); gap: 40px; }
}
@media (max-width: 760px) {
  .wrap { width: calc(100% - 40px); }
  .site-header { padding-block: 24px; gap: 18px; align-items: center; flex-wrap: wrap; }
  .brand { font-size: 15px; gap: 9px; }
  .brand img { width: 25px; height: 25px; }
  .site-nav { gap: 14px; font-size: 13px; }
  .site-nav > a:first-child { display: none; }
  .site-nav .nav-mail { display: inline-flex; gap: 5px; }
  .contact-label { display: none; }
  .contact-short { display: inline; }
  .language { padding-left: 15px; }
  .hero { padding-top: 32px; }
  .hero h1 { font-size: clamp(40px, 8.2vw, 59px); letter-spacing: -.04em; }
  .hero-summary { align-items: flex-start; flex-direction: column; gap: 17px; margin-top: 24px; }
  .hero-description { font-size: 16px; max-width: 43ch; }
  .release-note { padding-block: 0 5px; }
  .demo { margin-top: 28px; }
  .reading-field { padding: 22px 22px 0; }
  .field-top { font-size: 12px; margin-bottom: 26px; gap: 14px; }
  .demo-panel { grid-template-columns: 1fr; gap: 0; min-height: auto; }
  .source { padding-bottom: 24px; }
  .source h2 { font-size: 16px; margin-bottom: 12px; }
  .source p, :lang(zh-CN) .source p { max-width: 100%; font-size: 19px; line-height: 1.7; }
  .source-note { margin-top: 13px; }
  .answer { width: 100%; margin-bottom: 22px; padding: 20px; }
  .answer p { font-size: 14px; }
  .demo-controls { align-items: flex-start; flex-direction: column; gap: 10px; padding: 14px 0; }
  .tabs { gap: 3px; }
  .tabs button { font-size: 12px; padding: 7px 11px; }
  .demo-caption { max-width: 40ch; line-height: 1.6; }
  .editorial, .about, .privacy-inner { grid-template-columns: 1fr; gap: 30px; padding-block: 48px; }
  .editorial h2, .privacy-inner h2 { max-width: 20ch; font-size: 31px; }
  .how { padding-block: 37px 45px; }
  .how h2 { font-size: 27px; }
  .steps { grid-template-columns: 1fr; gap: 26px; margin-top: 27px; }
  .steps p { max-width: 100%; }
  .how-footnote { margin-top: 25px; }
  .about h2 { font-size: 29px; }
  .site-footer { flex-direction: column; gap: 18px; padding-bottom: 27px; }
  .document-header { padding-top: 35px; padding-bottom: 29px; }
  .document-header h1 { font-size: 43px; }
  .document-header p { font-size: 16px; }
  .document-layout { grid-template-columns: 1fr; gap: 31px; padding-top: 27px; padding-bottom: 50px; }
  .document-toc { position: static; font-size: 13px; border-bottom: 1px solid var(--line); padding-bottom: 17px; }
  .document-toc p { margin-bottom: 8px; }
  .document-toc ul { display: flex; flex-wrap: wrap; column-gap: 20px; }
  .document-toc li { margin-block: 5px; }
  .prose { font-size: 15px; }
  .prose h2 { font-size: 22px; }
  .not-found h1 { font-size: 40px; }
  :lang(zh-CN) .hero h1 { font-size: clamp(38px, 8.7vw, 55px); }
}
@media (max-width: 360px) { .site-nav { gap: 13px; } .language { padding-left: 12px; } .wrap { width: calc(100% - 32px); } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }