:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  color: #1d1d1f;
  background: #fff;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  --paper: #f5f5f7;
  --surface: #fff;
  --ink: #1d1d1f;
  --secondary: #606369;
  --green: #176856;
  --soft-green: #e7f1ec;
  --line: #dedee2;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { margin: 0; font-size: 17px; line-height: 1.75; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { text-wrap: balance; }
a { color: var(--green); text-underline-offset: 5px; }
button { font: inherit; cursor: pointer; }
img { display: block; max-width: 100%; height: auto; }
[hidden] { display: none !important; }
a, button, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--green); outline-offset: 5px; }
::selection { background: var(--soft-green); color: var(--green); }
.container { width: min(1120px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: absolute; top: 12px; left: 12px; z-index: 10; padding: 10px 18px; border-radius: 8px; background: var(--surface); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.site-header { background: var(--surface); }
.header-inner { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); text-decoration: none; font-size: 22px; font-weight: 650; letter-spacing: -.6px; }
.brand img { width: 40px; height: 40px; border-radius: 10px; }
.site-header nav { display: flex; gap: 32px; }
.site-header nav a { display: inline-flex; align-items: center; min-height: 44px; color: var(--secondary); font-size: 14px; text-decoration: none; }
.site-header nav a:hover { color: var(--green); text-decoration: underline; }

.hero { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: center; gap: 70px; padding-block: 64px 88px; }
.eyebrow { color: var(--green); font-size: 15px; font-weight: 600; letter-spacing: .02em; }
h1 { margin-top: 22px; font-size: 64px; font-weight: 700; letter-spacing: -.055em; line-height: 1.18; }
.hero-intro { max-width: 420px; margin-top: 28px; color: var(--secondary); font-size: 19px; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px 26px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 20px; min-height: 50px; padding: 10px 23px; border-radius: 999px; background: var(--green); color: var(--surface); font-size: 15px; font-weight: 600; text-decoration: none; transition: background-color .18s ease; }
.button:hover { background: #105241; }
.text-link { display: inline-flex; align-items: center; gap: 11px; min-height: 48px; font-size: 15px; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.text-link span { font-size: 24px; line-height: 1; }
.hero-figure { width: 100%; max-width: 410px; justify-self: end; }
.screenshot-surface { padding: 14px; background: var(--paper); border: 1px solid #ededf0; border-radius: 20px; }
.app-screenshot { width: 100%; height: auto; }
figcaption { margin-top: 16px; color: var(--secondary); font-size: 12px; line-height: 1.7; }
figcaption strong { display: block; margin-bottom: 3px; color: var(--ink); font-size: 14px; font-weight: 600; }

.demo-section { padding-bottom: 88px; scroll-margin-top: 32px; }
.demo-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px 48px; margin-bottom: 30px; }
.demo-heading h2 { margin-top: 12px; }
.demo-heading > p { color: var(--secondary); font-size: 16px; }
.demo-player { position: relative; overflow: hidden; border-radius: 24px; background: #09231f; }
.demo-player video { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: contain; }
.demo-start { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: inline-flex; align-items: center; justify-content: center; gap: 12px; max-width: calc(100% - 32px); min-height: 58px; padding: 14px 25px; border: 1px solid #c0eed4; border-radius: 999px; background: #c0eed4; color: #123f39; box-shadow: 0 8px 32px #0003; font-size: 16px; font-weight: 600; white-space: nowrap; }
.demo-start:hover { background: #def8e9; }
.demo-start:focus-visible, .demo-player video:focus-visible { outline-color: #fff; outline-offset: -5px; }
.demo-toolbar { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 18px; margin-top: 16px; }
.demo-sound { min-height: 44px; padding: 8px 18px; border: 1px solid #cdded5; border-radius: 999px; background: var(--soft-green); color: var(--green); font-size: 14px; font-weight: 600; }
.demo-sound:hover { background: #d7e9df; }
.demo-status { color: var(--secondary); font-size: 14px; }
.demo-direct { display: inline-flex; align-items: center; min-height: 44px; margin-left: auto; font-size: 14px; }
.demo-section figcaption { margin-top: 8px; }

.features { background: var(--paper); padding-block: 86px; }
h2 { font-size: 36px; font-weight: 650; letter-spacing: -.035em; line-height: 1.4; }
.capabilities { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 48px; margin-top: 44px; }
.capabilities article { border-top: 1px solid #d6d8d7; padding-top: 22px; }
.capabilities h3 { margin-top: 10px; font-size: 25px; font-weight: 650; letter-spacing: -.025em; }
.capabilities article > p:last-child { max-width: 290px; margin-top: 10px; color: var(--secondary); }
.screen-viewer { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: center; gap: 60px; margin-top: 52px; padding: 48px 56px; border-radius: 28px; background: var(--surface); scroll-margin-top: 32px; }
.viewer-copy h3 { font-size: 30px; font-weight: 650; letter-spacing: -.035em; line-height: 1.4; }
.viewer-note { margin-top: 18px; color: var(--secondary); }
.screen-controls { display: inline-flex; max-width: 100%; gap: 4px; margin-top: 30px; padding: 5px; border-radius: 999px; background: var(--paper); }
.screen-controls button { min-width: 76px; min-height: 44px; padding: 8px 17px; border: 0; border-radius: 999px; color: var(--secondary); background: transparent; font-size: 15px; font-weight: 550; transition: background-color .18s ease, color .18s ease; }
.screen-controls button:hover { color: var(--green); background: var(--soft-green); }
.screen-controls button[aria-pressed="true"] { background: var(--green); color: var(--surface); }
.screen-description { max-width: 310px; margin-top: 24px; color: var(--secondary); font-size: 15px; line-height: 1.8; }
.viewer-figure { width: 100%; max-width: 350px; justify-self: end; }
.viewer-figure > img { border: 1px solid #ededf0; }
.no-script-links { margin-top: 20px; font-size: 14px; }

.practical { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); align-items: start; gap: 64px; padding-block: 88px; }
.local-panel { background: var(--soft-green); padding: 36px; border-radius: 24px; }
.local-panel > img { width: 48px; height: 48px; border-radius: 12px; margin-bottom: 28px; }
.local-panel h2 { font-size: 30px; }
.local-panel > p { margin-top: 20px; color: var(--secondary); font-size: 15px; line-height: 1.9; }
.disclosures { scroll-margin-top: 32px; border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { position: relative; display: block; padding: 24px 34px 24px 0; list-style: none; cursor: pointer; color: var(--ink); font-size: 21px; font-weight: 600; line-height: 1.5; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; top: 24px; right: 3px; color: var(--green); font-size: 24px; font-weight: 400; line-height: 1.3; }
details[open] > summary::after { content: "−"; }
summary:hover { color: var(--green); }
.disclosure-content { padding-bottom: 26px; color: var(--secondary); font-size: 15px; line-height: 1.9; }
.disclosure-content p + p { margin-top: 16px; }
.disclosure-content .compatibility { padding-top: 16px; border-top: 1px solid var(--line); font-size: 14px; }
.site-footer { display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; padding-block: 26px 32px; border-top: 1px solid var(--line); color: var(--secondary); font-size: 12px; }

@media (max-width: 1000px) {
  .container { width: calc(100% - 64px); }
  .hero { gap: 40px; }
  h1 { font-size: 52px; }
  .hero-intro { font-size: 17px; }
  .hero-actions { gap: 10px 18px; }
  .capabilities { gap: 28px; }
  .screen-viewer { gap: 36px; padding: 36px; }
  .practical { gap: 36px; }
}

@media (max-width: 760px) {
  .container { width: calc(100% - 48px); }
  .header-inner { min-height: 76px; }
  .site-header nav { gap: 20px; }
  .hero { grid-template-columns: 1fr; gap: 44px; padding-block: 52px 64px; }
  h1 { font-size: 48px; }
  .hero-intro { max-width: 440px; margin-top: 24px; }
  .hero-actions { margin-top: 26px; }
  .hero-figure { justify-self: center; max-width: 390px; }
  h2 { font-size: 32px; }
  .features { padding-block: 60px; }
  .demo-section { padding-bottom: 60px; }
  .demo-heading { align-items: start; flex-direction: column; gap: 16px; margin-bottom: 24px; }
  .demo-player { border-radius: 16px; }
  .demo-start { min-height: 48px; padding: 10px 18px; font-size: 14px; }
  .demo-status { flex: 1; min-width: 170px; }
  .demo-direct { margin-left: 0; }
  .capabilities { grid-template-columns: 1fr; gap: 26px; margin-top: 32px; }
  .capabilities article { padding-top: 18px; }
  .capabilities h3 { font-size: 24px; margin-top: 5px; }
  .capabilities article > p:last-child { max-width: none; margin-top: 5px; }
  .screen-viewer { grid-template-columns: 1fr; gap: 30px; margin-top: 36px; padding: 28px; border-radius: 22px; }
  .viewer-copy h3 { font-size: 27px; }
  .viewer-note { margin-top: 12px; }
  .desktop-break { display: none; }
  .screen-controls { margin-top: 22px; }
  .screen-description { max-width: none; margin-top: 18px; min-height: 54px; }
  .viewer-figure { justify-self: center; }
  .practical { grid-template-columns: 1fr; gap: 36px; padding-block: 60px; }
  .local-panel { padding: 30px; }
  .local-panel > p { max-width: 430px; }
}

@media (max-width: 420px) {
  .container { width: calc(100% - 40px); }
  .header-inner { gap: 14px; }
  .brand { font-size: 19px; gap: 8px; }
  .brand img { width: 34px; height: 34px; border-radius: 9px; }
  .site-header nav { gap: 14px; }
  .site-header nav a { font-size: 12px; }
  h1 { font-size: 40px; }
  h2 { font-size: 29px; }
  .hero-actions { gap: 10px 18px; }
  .button { padding-inline: 18px; gap: 12px; font-size: 14px; }
  .text-link { gap: 7px; font-size: 14px; }
  .screenshot-surface { padding: 9px; border-radius: 14px; }
  .screen-viewer { padding: 24px 18px; }
  .screen-controls { display: flex; }
  .screen-controls button { min-width: 0; flex: 1; padding-inline: 12px; }
  .local-panel { padding: 26px; }
  .local-panel h2 { font-size: 28px; }
  summary { font-size: 20px; }
}

.availability { margin-top: 18px; color: var(--secondary); font-size: 14px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 24px; }
.site-footer nav a { display: inline-flex; align-items: center; min-height: 44px; }
.article-page .header-inner, .article-page .site-footer { border: 0; }
.article-page .site-header nav a[aria-current="page"] { color: var(--green); }
.article { max-width: 720px; padding-block: 64px 88px; overflow-wrap: anywhere; }
.article h1 { margin-top: 0; font-size: 52px; letter-spacing: -.045em; line-height: 1.25; }
.article .article-lead { margin-top: 24px; color: var(--secondary); }
.article .article-meta { margin-top: 24px; color: var(--secondary); font-size: 15px; }
.article section { margin-top: 48px; }
.article h2 { font-size: 29px; letter-spacing: -.03em; line-height: 1.45; }
.article h3 { margin-top: 30px; font-size: 22px; font-weight: 650; letter-spacing: -.02em; line-height: 1.5; }
.article section p { margin-top: 18px; }
.article .contact-panel { padding: 32px; border-radius: 24px; background: var(--soft-green); }

@media (max-width: 760px) {
  .article { padding-block: 48px 60px; }
  .article h1 { font-size: 40px; }
  .article h2 { font-size: 25px; }
  .article section { margin-top: 36px; }
  .article .contact-panel { padding: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* Current feature sections retain the site's original typography and palette. */
.screen-viewer { grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr); gap: 36px; padding: 40px; }
.viewer-figure { max-width: 570px; }
.screen-controls { flex-wrap: wrap; border-radius: 24px; }
.screen-controls button { min-width: 60px; padding-inline: 12px; }
.care-section { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; padding-block: 88px; }
.care-section h2, .widgets-section h2 { margin-top: 14px; }
.section-intro { margin-top: 24px; max-width: 440px; color: var(--secondary); }
.care-notes h3 { font-size: 21px; margin-bottom: 10px; }
.care-notes p { color: var(--secondary); }
.care-notes h3:not(:first-child) { margin-top: 28px; }
.fine-print { margin-top: 26px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 14px; }
.widgets-section { background: var(--paper); padding-block: 80px; scroll-margin-top: 24px; }
.widget-preview { max-width: 900px; margin: 40px auto 0; }
.widget-preview img { border-radius: 20px; }
.widget-note { max-width: 720px; margin: 28px auto 0; font-size: 15px; color: var(--secondary); }
.article ol { padding-left: 1.5em; color: var(--secondary); }
.article li + li { margin-top: 12px; }
@media (max-width: 760px) {
  .screen-viewer, .care-section { grid-template-columns: 1fr; gap: 30px; }
  .screen-viewer { padding: 28px; }
  .care-section, .widgets-section { padding-block: 60px; }
}
@media (max-width: 420px) {
  .site-header nav { gap: 12px; }
  .screen-viewer { padding: 24px 18px; }
  .screen-controls button { min-width: 0; padding-inline: 10px; }
}