:root {
  color-scheme: light;
  --ink: #15213b;
  --muted: #526078;
  --blue: #185cec;
  --blue-hover: #104bc8;
  --sky: #e8f2ff;
  --surface: #f6f9ff;
  --line: #dce4f0;
  --radius: 16px;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  font-size: 16px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; color: var(--ink); background: #fff; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
img, video { max-width: 100%; display: block; }
img { height: auto; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
figure, h1, h2, h3, p { margin: 0; }
[hidden] { display: none !important; }
.container { width: min(1180px, calc(100% - 80px)); margin-inline: auto; }
.icon { width: 24px; height: 24px; flex: 0 0 auto; }
a, button, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 100; padding: 12px 18px; background: #fff; color: var(--blue); transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.landing-header { position: sticky; top: 0; z-index: 20; background: #e8f2fff2; backdrop-filter: blur(18px); }
.navigation { display: flex; align-items: center; gap: 36px; min-height: 82px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 650; white-space: nowrap; letter-spacing: -.025em; }
.brand img { border-radius: 10px; }
.desktop-links { display: flex; gap: 28px; margin-left: auto; font-size: 15px; color: var(--muted); }
.desktop-links a, .language-link { display: inline-flex; align-items: center; min-height: 44px; }
.desktop-links a:hover, .language-link:hover, .landing-footer a:hover { color: var(--blue); }
.nav-actions { display: flex; align-items: center; gap: 23px; }
.language-link { font-size: 14px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 56px; padding: 15px 25px; background: var(--blue); color: #fff; border: 1px solid transparent; border-radius: 12px; font-weight: 600; line-height: 1.4; transition: background-color 180ms ease-out, transform 180ms ease-out; }
.button:hover { background: var(--blue-hover); }
.button:active { transform: scale(.98); }
.button-small { min-height: 44px; padding: 10px 16px; font-size: 14px; }
.button-outline { background: transparent; border-color: #9cb7e2; color: var(--blue); }
.button-outline:hover { background: #d9e9ff; }
.mobile-menu { display: none; }
.hero { padding-top: 51px; background: var(--sky); }
.hero-copy { text-align: center; }
h1 { font-size: clamp(36px, 4.3vw, 62px); font-weight: 650; line-height: 1.2; letter-spacing: -.03em; text-wrap: balance; }
.hero-name { display: block; font-size: 22px; letter-spacing: -.015em; margin-bottom: 17px; font-weight: 550; }
.hero-lead { font-size: 19px; line-height: 1.7; color: var(--muted); margin-top: 23px; }
.hero-actions { display: flex; justify-content: center; gap: 15px; margin-top: 28px; flex-wrap: wrap; }
.download-note { font-size: 13px; color: var(--muted); margin-top: 16px; line-height: 1.7; }
.hero-product { position: relative; max-width: 1080px; margin-top: 48px; padding: 0 78px 0 0; }
.tablet { padding: 12px; border-radius: 27px; background: #273043; box-shadow: 0 28px 70px #203b6524; }
.gallery-illustration { background: #fff; border-radius: 16px; padding: 21px 25px 0; overflow: hidden; }
.gallery-top { display: flex; justify-content: space-between; align-items: center; gap: 16px; font-size: 16px; }
.gallery-top > span:first-child { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.gallery-top .icon { width: 19px; height: 19px; color: #b34024; }
.gallery-badge { color: var(--muted); font-size: 11px; }
.gallery-filter { display: flex; gap: 26px; font-size: 13px; color: var(--muted); margin: 24px 0 17px; }
.gallery-filter span { padding-block: 5px; }
.gallery-filter .selected { color: #b34024; border-bottom: 2px solid currentColor; }
.gallery-grid { display: grid; grid-template-columns: 1.15fr 1fr .85fr; gap: 14px; }
.gallery-item { min-width: 0; }
.gallery-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 10px; }
.gallery-item > div { display: flex; gap: 6px; align-items: center; padding: 12px 0; font-size: 12px; }
.gallery-item .icon { width: 16px; height: 16px; }
.gallery-toolbar { display: flex; gap: 40px; align-items: center; justify-content: center; color: #4f596b; height: 53px; border-top: 1px solid #edf0f4; margin-top: 7px; }
.gallery-toolbar .icon { width: 19px; height: 19px; }
.phone { position: absolute; width: 181px; right: 0; top: 44px; background: #273043; padding: 7px; border-radius: 25px; box-shadow: 0 20px 40px #203b6530; }
.phone img, .favorites-phone img { width: 100%; height: auto; border-radius: 19px; }
figcaption { color: var(--muted); font-size: 12px; line-height: 1.6; }
.hero-product figcaption { text-align: center; margin-top: 28px; padding: 0 0 26px 78px; }
.capabilities { display: flex; align-items: center; justify-content: center; gap: 48px; padding-block: 29px; border-bottom: 1px solid var(--line); }
.capabilities a { display: flex; align-items: center; gap: 9px; color: var(--muted); min-height: 44px; font-size: 14px; }
.capabilities a:hover { color: var(--blue); }
.capabilities .icon { width: 21px; height: 21px; }
.feature-sections { padding-block: 80px 38px; }
.feature-row { display: grid; grid-template-columns: 1fr 1.15fr; gap: 75px; align-items: center; padding: 68px 50px; background: var(--surface); border-radius: var(--radius); margin-bottom: 34px; scroll-margin-top: 96px; }
.feature-row.reverse { grid-template-columns: 1.15fr 1fr; }
.feature-row.reverse .feature-copy { order: 2; }
h2 { font-size: clamp(28px, 2.7vw, 38px); line-height: 1.28; font-weight: 650; letter-spacing: -.025em; text-wrap: balance; }
.feature-copy > p { font-size: 16px; line-height: 1.85; color: var(--muted); margin-top: 21px; max-width: 64ch; }
.feature-copy .detail-note { font-size: 12px; line-height: 1.8; margin-top: 24px; }
.feature-points { list-style: none; padding: 0; margin: 22px 0 0; font-size: 14px; }
.feature-points li { display: flex; align-items: flex-start; gap: 9px; line-height: 1.65; margin-top: 11px; }
.feature-points .icon { color: var(--blue); width: 19px; height: 19px; margin-top: 2px; }
.text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--blue); font-size: 14px; min-height: 44px; margin-top: 23px; }
.text-link .icon { width: 18px; height: 18px; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.feature-visual { min-width: 0; }
.feature-visual figcaption { margin-top: 16px; }
.gallery-detail .gallery-illustration { padding: 18px 18px 0; box-shadow: 0 18px 40px #233e5c12; }
.gallery-detail .gallery-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
.gallery-detail .gallery-item:last-child { display: none; }
.gallery-detail .gallery-top { font-size: 13px; }
.gallery-detail .gallery-filter { gap: 16px; margin-top: 20px; }
.video-shell { border-radius: var(--radius); overflow: hidden; background: #101722; }
.video-shell video { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: contain; }
.demo-controls { display: flex; justify-content: center; gap: 22px; padding: 10px 15px; }
.demo-controls button { background: transparent; color: #fff; border: 0; min-height: 44px; min-width: 48px; font-size: 13px; border-radius: 8px; }
.demo-controls button:hover { background: #283242; }
.demo-toggle { display: flex; align-items: center; gap: 7px; }
.demo-toggle .icon { width: 17px; height: 17px; }
.pause-shape { opacity: 0; transition: opacity 140ms ease-out; }
.play-shape { opacity: 1; transition: opacity 140ms ease-out; }
.is-playing .pause-shape { opacity: 1; }
.is-playing .play-shape { opacity: 0; }
.demo-status { font-size: 12px; color: var(--muted); margin-top: 12px; min-height: 1.6em; }
.player-demo figcaption a { display: block; margin-top: 8px; text-decoration: underline; text-underline-offset: 3px; }
.shortcut-list { display: flex; flex-wrap: wrap; gap: 13px 18px; margin-top: 25px; font-size: 12px; color: var(--muted); }
.shortcut-list span { display: inline-flex; align-items: center; gap: 5px; }
kbd { display: inline-flex; min-width: 24px; height: 27px; justify-content: center; align-items: center; padding-inline: 6px; border: 1px solid #c2ccdc; border-bottom-width: 2px; border-radius: 5px; background: #fff; font-family: inherit; color: var(--ink); font-size: 11px; }
.save-window { padding: 24px; background: #fff; border-radius: var(--radius); box-shadow: 0 18px 40px #233e5c12; }
.save-heading { display: flex; align-items: center; gap: 9px; font-size: 14px; }
.save-heading .icon { color: var(--blue); }
.save-heading > span { margin-left: auto; font-size: 11px; color: var(--muted); }
.save-window > img { width: 100%; aspect-ratio: 2.3 / 1; object-fit: cover; border-radius: 9px; margin-top: 22px; }
.save-steps { margin: 23px 0 0; padding-left: 21px; color: var(--muted); font-size: 13px; line-height: 2.4; }
.save-targets { display: flex; gap: 25px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--blue); font-size: 13px; }
.save-targets span { display: flex; align-items: center; gap: 7px; }
.save-targets .icon { width: 19px; height: 19px; }
.article-window { background: #fff; padding: 23px; border-radius: var(--radius); box-shadow: 0 18px 40px #233e5c12; }
.article-toolbar { display: flex; gap: 10px; align-items: center; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.article-toolbar > .icon { color: var(--blue); width: 21px; height: 21px; }
.article-toolbar button { display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%; min-height: 44px; background: transparent; border: 0; padding: 0; color: var(--ink); font-size: 13px; text-align: left; }
.switch { position: relative; width: 38px; height: 23px; flex: 0 0 auto; border-radius: 30px; background: #c2cad7; transition: background-color 180ms ease-out; }
.switch::after { content: ''; position: absolute; width: 17px; height: 17px; left: 3px; top: 3px; border-radius: 50%; background: #fff; transition: transform 180ms cubic-bezier(.16,1,.3,1); }
[aria-pressed="true"] .switch { background: var(--blue); }
[aria-pressed="true"] .switch::after { transform: translateX(15px); }
.mock-ad { margin-top: 15px; padding: 22px 10px; text-align: center; background: #fff1cf; color: #795019; font-size: 12px; }
.article-window h3 { font-size: 20px; margin-top: 23px; font-weight: 600; }
.article-window img { width: 100%; aspect-ratio: 2.2 / 1; object-fit: cover; margin-top: 16px; border-radius: 6px; }
.article-window > p { font-size: 12px; color: var(--muted); line-height: 1.8; margin-top: 13px; }
.favorites-visual { position: relative; padding: 0 45px; }
.favorites-phone { width: 183px; padding: 7px; border-radius: 25px; background: #273043; margin-inline: auto; box-shadow: 0 18px 40px #233e5c1a; }
.icloud-mark { position: absolute; top: 80px; right: 10px; background: #e8f2ff; padding: 18px 20px; border-radius: 14px; color: var(--blue); display: flex; flex-direction: column; align-items: center; gap: 5px; }
.icloud-mark .icon { width: 37px; height: 37px; }
.icloud-mark span { font-size: 13px; }
.favorites-visual figcaption { text-align: center; }
.faq-section { max-width: 880px; padding-block: 18px 100px; }
.faq-section h2 { margin-bottom: 33px; }
.faqs details { border-bottom: 1px solid var(--line); }
.faqs summary { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding-block: 22px; font-size: 16px; cursor: pointer; list-style: none; font-weight: 550; }
summary::-webkit-details-marker { display: none; }
.faq-mark { width: 18px; height: 18px; position: relative; flex: 0 0 auto; }
.faq-mark::before, .faq-mark::after { content: ''; position: absolute; background: var(--muted); height: 1.5px; width: 14px; top: 8px; left: 2px; }
.faq-mark::after { transform: rotate(90deg); transition: transform 180ms cubic-bezier(.16,1,.3,1); }
details[open] .faq-mark::after { transform: rotate(0); }
.faqs details > p { font-size: 14px; color: var(--muted); line-height: 1.85; padding-bottom: 24px; max-width: 75ch; }
.closing { text-align: center; background: var(--sky); padding: 73px 0 70px; }
.closing h2 { font-size: 43px; }
.closing p:not(.download-note) { margin-top: 22px; color: var(--muted); font-size: 16px; line-height: 1.8; }
.closing .button { margin-top: 27px; }
.landing-footer { padding-block: 40px 25px; }
.footer-top { display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.footer-top p, .footer-bottom { color: var(--muted); font-size: 12px; line-height: 1.8; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; padding-top: 27px; margin-top: 25px; border-top: 1px solid var(--line); }
.footer-bottom nav { display: flex; flex-wrap: wrap; gap: 9px 25px; }
.footer-bottom a { display: inline-flex; align-items: center; min-height: 44px; }
.footer-bottom > p { align-self: center; }
.document-main { max-width: 840px; padding-block: 60px 80px; }
.document-main h1 { font-size: 42px; }
.document-main .lead { color: var(--muted); margin-top: 20px; line-height: 1.8; }
.document-main h2 { font-size: 25px; margin-top: 38px; margin-bottom: 16px; }
.document-main h3 { font-size: 18px; margin-top: 25px; margin-bottom: 12px; }
.document-main p, .document-main li { font-size: 16px; line-height: 1.85; margin-top: 12px; }
.document-main a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; overflow-wrap: anywhere; }
@media (max-width: 1100px) {
  .container { width: calc(100% - 56px); }
  .navigation { gap: 24px; }
  .desktop-links { gap: 20px; }
  .nav-actions { margin-left: auto; gap: 17px; }
  .brand { font-size: 17px; }
  .desktop-links, .nav-actions .button-small { font-size: 13px; }
  .feature-row, .feature-row.reverse { gap: 35px; padding: 50px 34px; grid-template-columns: 1fr 1fr; }
  .capabilities { gap: 27px; }
  .hero-product { padding-right: 55px; }
  .phone { width: 164px; }
  .hero-product figcaption { padding-left: 55px; }
}
@media (max-width: 850px) {
  .desktop-links { display: none; }
  .nav-actions .button-small { display: none; }
  .navigation { gap: 17px; min-height: 70px; }
  .mobile-menu { display: block; position: relative; }
  .mobile-menu summary { list-style: none; width: 44px; height: 44px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; cursor: pointer; }
  .mobile-menu summary span { display: block; height: 1.5px; width: 19px; background: var(--ink); transition: transform 180ms cubic-bezier(.16,1,.3,1); }
  .mobile-menu[open] summary span:first-child { transform: translateY(3.25px) rotate(45deg); }
  .mobile-menu[open] summary span:last-child { transform: translateY(-3.25px) rotate(-45deg); }
  .mobile-menu > div { position: absolute; top: 48px; right: 0; width: 210px; padding: 13px; border-radius: 12px; background: #fff; box-shadow: 0 18px 40px #203b6529; }
  .mobile-menu a { display: block; padding: 12px; font-size: 15px; }
  .hero { padding-top: 36px; }
  .hero-name { font-size: 20px; }
  .hero-lead { font-size: 17px; }
  .hero-product { margin-top: 38px; padding-right: 42px; }
  .phone { width: 136px; top: 41px; border-radius: 22px; }
  .tablet { padding: 9px; border-radius: 22px; }
  .gallery-illustration { padding: 18px 18px 0; }
  .gallery-item > div { font-size: 10px; }
  .hero-product figcaption { padding-left: 42px; padding-top: 15px; }
  .capabilities { flex-wrap: wrap; gap: 8px 30px; padding-block: 20px; }
  .feature-sections { padding-top: 45px; }
  .feature-row, .feature-row.reverse { grid-template-columns: 1fr; padding: 39px; gap: 33px; }
  .feature-row.reverse .feature-copy { order: 0; }
  .feature-copy > p { max-width: 60ch; }
  .feature-visual { width: 100%; max-width: 510px; justify-self: center; }
  .gallery-detail .gallery-grid { grid-template-columns: 1fr 1fr 1fr; }
  .gallery-detail .gallery-item:last-child { display: block; }
  .favorites-visual { padding-inline: 60px; }
  .favorites-phone { width: 171px; }
  .icloud-mark { right: 65px; }
}
@media (max-width: 540px) {
  .container { width: calc(100% - 40px); }
  .navigation { gap: 10px; min-height: 66px; }
  .brand { gap: 8px; font-size: 16px; }
  .brand img { width: 31px; height: 31px; }
  .nav-actions { gap: 0; }
  .language-link { font-size: 12px; }
  html[lang="en"] .navigation .brand { font-size: 14px; }
  h1 { font-size: 36px; line-height: 1.22; }
  .hero-name { font-size: 17px; margin-bottom: 17px; }
  .hero-lead { font-size: 15px; margin-top: 19px; }
  .hero-lead br { display: none; }
  .hero-actions { gap: 11px; margin-top: 24px; }
  .button { min-height: 50px; font-size: 14px; padding: 12px 20px; }
  .button .icon { width: 19px; height: 19px; }
  .hero-actions .button { width: 100%; max-width: 300px; }
  .download-note { font-size: 11px; margin-top: 13px; }
  .hero-product { margin-top: 31px; padding-right: 42px; padding-bottom: 0; }
  .tablet { padding: 6px; border-radius: 15px; }
  .hero-product .gallery-illustration { padding: 12px 10px 0; border-radius: 10px; }
  .hero-product .gallery-top { font-size: 10px; gap: 5px; }
  .hero-product .gallery-top .icon { width: 12px; height: 12px; }
  .hero-product .gallery-badge { display: none; }
  .hero-product .gallery-filter { margin: 11px 0 9px; gap: 15px; font-size: 9px; }
  .hero-product .gallery-grid { grid-template-columns: 1fr 1fr; gap: 7px; }
  .hero-product .gallery-item:last-child { display: none; }
  .hero-product .gallery-item > div { padding-block: 8px; font-size: 9px; gap: 4px; }
  .hero-product .gallery-item .icon { width: 12px; height: 12px; }
  .hero-product .gallery-toolbar { height: 36px; gap: 22px; margin-top: 0; }
  .hero-product .gallery-toolbar .icon { width: 14px; height: 14px; }
  .phone { width: 91px; padding: 4px; border-radius: 15px; top: 24px; }
  .phone img { border-radius: 11px; }
  .hero-product figcaption { margin-top: 15px; padding: 15px 0 22px 42px; font-size: 10px; }
  .capabilities { gap: 5px 21px; }
  .capabilities a { font-size: 12px; gap: 6px; }
  .capabilities .icon { width: 17px; height: 17px; }
  .feature-sections { padding-block: 30px 5px; }
  .feature-row, .feature-row.reverse { padding: 30px 23px; margin-bottom: 22px; gap: 30px; }
  h2 { font-size: 28px; }
  .feature-copy > p { font-size: 14px; margin-top: 18px; }
  .feature-copy .detail-note { font-size: 11px; }
  .feature-points { font-size: 12px; margin-top: 17px; }
  .feature-points li { gap: 7px; }
  .gallery-detail .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-detail .gallery-item:last-child { display: none; }
  .gallery-detail .gallery-illustration { padding: 16px 13px 0; }
  .gallery-detail .gallery-top { font-size: 12px; gap: 8px; }
  .gallery-detail .gallery-badge { font-size: 9px; }
  .gallery-detail .gallery-filter { gap: 18px; font-size: 11px; }
  .gallery-detail .gallery-item > div { font-size: 10px; }
  .gallery-toolbar { gap: 25px; }
  .feature-visual figcaption { font-size: 10px; }
  .save-window, .article-window { padding: 17px; }
  .save-heading { font-size: 12px; gap: 7px; }
  .save-heading > span { font-size: 9px; }
  .save-steps { font-size: 11px; }
  .article-toolbar button { font-size: 11px; }
  .article-window h3 { font-size: 18px; }
  .article-window > p { font-size: 11px; }
  .favorites-visual { padding-inline: 0; }
  .favorites-phone { width: 164px; }
  .icloud-mark { right: -5px; padding: 13px 16px; }
  .faq-section { padding-block: 22px 55px; }
  .faq-section h2 { font-size: 26px; margin-bottom: 21px; }
  .faqs summary { font-size: 14px; gap: 19px; padding-block: 20px; }
  .faqs details > p { font-size: 13px; }
  .closing { padding-block: 50px; }
  .closing h2 { font-size: 31px; }
  .closing p:not(.download-note) { font-size: 14px; }
  .footer-top, .footer-bottom { align-items: flex-start; flex-direction: column; gap: 14px; }
  .footer-bottom { margin-top: 23px; padding-top: 15px; }
  .footer-bottom > p { align-self: flex-start; }
  .document-main { padding-block: 38px 55px; }
  .document-main h1 { font-size: 32px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
  .button:active { transform: none; }
}
@media (prefers-reduced-transparency: reduce) { .landing-header { background: var(--sky); backdrop-filter: none; } }
@media (prefers-contrast: more) { :root { --muted: #354259; --line: #66758c; } }
@media (forced-colors: active) { .button, .switch, .tablet, .phone, .favorites-phone { border: 1px solid CanvasText; } }