:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f6f8f7;
  --canvas: #ffffff;
  --ink: #1b2720;
  --muted: #59665e;
  --accent: #287347;
  --on-accent: #ffffff;
  --line: #dde4df;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --z-header: 10;
  --z-dialog: 20;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: var(--bg); color: var(--ink); line-height: 1.7; }
body.viewer-open { overflow: hidden; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; color: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
img { display: block; max-width: 100%; }
button img { pointer-events: none; }
button { border: 0; }
figure, p, h1, h2, h3 { margin: 0; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }
::selection { background: #d9eddd; color: #1b2720; }
.wrap { width: min(1120px, calc(100% - 96px)); margin-inline: auto; }
.section-space { padding-block: 100px; }
.skip-link { position: fixed; left: 20px; top: -80px; padding: 10px 20px; color: var(--canvas); background: var(--accent); z-index: var(--z-dialog); }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: var(--z-header); background: var(--bg); border-bottom: 1px solid var(--line); }
.nav-inner { height: 76px; width: min(1360px, calc(100% - 80px)); margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 9px; font-size: 20px; font-weight: 650; letter-spacing: -.025em; }
.brand img { width: 32px; height: 32px; }
.nav-version { margin-left: 7px; border-left: 1px solid var(--line); padding-left: 16px; color: var(--muted); font-size: 13px; font-weight: 400; letter-spacing: 0; }
nav { display: flex; gap: 32px; color: var(--muted); font-size: 13px; }
nav a, .text-link, .inline-link { transition: color 180ms, gap 180ms; }
nav a:hover, .inline-link:hover { color: var(--accent); }
.nav-download { font-size: 13px; display: flex; gap: 26px; align-items: center; }
.nav-download span { color: var(--accent); font-size: 18px; }
.reading-progress { height: 2px; width: 100%; position: absolute; bottom: -1px; background: var(--accent); transform: scaleX(0); transform-origin: left; }
.hero { padding-top: 65px; background: var(--canvas); }
.hero-copy { text-align: center; padding-bottom: 54px; }
.release-date { display: flex; gap: 9px; align-items: center; justify-content: center; color: var(--muted); font-size: 12px; margin-bottom: 20px; }
.release-date span { height: 5px; width: 5px; background: var(--accent); border-radius: 50%; }
h1 { font-size: clamp(48px, 6.4vw, 84px); font-weight: 650; line-height: 1.14; letter-spacing: -.04em; }
h1 span { color: var(--accent); }
.hero-statement { font-size: clamp(24px, 3.1vw, 40px); letter-spacing: -.025em; font-weight: 550; margin-top: 15px; }
.hero-description { margin-top: 16px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.text-link { display: inline-flex; align-items: center; gap: 20px; font-size: 13px; color: var(--accent); }
.text-link:hover { gap: 27px; }
.hero-copy .text-link { margin-top: 22px; }
.hero-copy > * { animation: hero-in 850ms var(--ease) both; }
.hero-copy > :nth-child(2) { animation-delay: 55ms; }
.hero-copy > :nth-child(3) { animation-delay: 110ms; }
.hero-copy > :nth-child(4) { animation-delay: 155ms; }
.hero-copy > :nth-child(5) { animation-delay: 200ms; }
@keyframes hero-in { from { transform: translateY(16px); } to { transform: translateY(0); } }
.screenshot-button { display: block; width: 100%; position: relative; overflow: hidden; padding: 0; background: #f7f8f7; text-align: left; }
.zoom-hint { border: 1px solid var(--line); position: absolute; right: 16px; bottom: 16px; background: var(--bg); color: var(--ink); border-radius: 4px; font-size: 12px; padding: 7px 11px; transition: transform 220ms var(--ease); }
.screenshot-button:hover .zoom-hint { transform: translateY(-3px); }
figcaption { margin-top: 14px; color: var(--muted); font-size: 12px; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; }
h2 { font-size: clamp(30px, 3.5vw, 44px); line-height: 1.38; letter-spacing: -.025em; font-weight: 560; }
.section-heading > p { color: var(--muted); font-size: 14px; line-height: 1.9; padding-bottom: 7px; }
h3 { font-size: 17px; font-weight: 550; }

.creation-showcase { padding-block: 16px 90px; }
.creation-row { display: grid; grid-template-columns: .72fr 1.4fr; gap: 58px; align-items: center; padding-block: 50px 65px; }
.creation-row + .creation-row { border-top: 1px solid var(--line); padding-top: 65px; }
.video-row { grid-template-columns: 1.4fr .72fr; }
.creation-copy h2 { font-size: clamp(27px, 2.8vw, 36px); line-height: 1.45; }
.creation-copy > p { margin-top: 22px; color: var(--muted); font-size: 14px; line-height: 1.95; }
.creation-copy ul { margin: 22px 0 0; padding-left: 17px; color: var(--muted); font-size: 13px; line-height: 2; }
.creation-copy li + li { margin-top: 6px; }
.creation-copy li::marker { color: var(--accent); }
.image-detail-link { margin-top: 26px; padding: 0; background: transparent; text-align: left; }
.creation-media { min-width: 0; }
.promo-shot { border: 1px solid var(--line); border-radius: 8px; }
.promo-shot img { width: 100%; height: auto; }
.creation-media figcaption { text-align: center; font-size: 12px; }

.collaboration { background: var(--surface); }
.collaboration-stories { margin-top: 44px; }
.collaboration-story { display: grid; grid-template-columns: .72fr 1.4fr; align-items: center; gap: 58px; padding-block: 32px 50px; }
.collaboration-story + .collaboration-story { border-top: 1px solid var(--line); padding-top: 50px; }
.story-reverse { grid-template-columns: 1.4fr .72fr; }
.story-copy h3 { font-size: clamp(23px, 2.5vw, 30px); line-height: 1.5; letter-spacing: -.02em; }
.story-copy > p { font-size: 14px; line-height: 1.95; color: var(--muted); margin-top: 18px; }
.story-copy > .story-note { font-size: 13px; }
.story-copy > .feature-shortcut { font-size: 12px; margin-top: 22px; }
.story-media { min-width: 0; }
.story-shot { aspect-ratio: 1.65; border: 1px solid var(--line); border-radius: 7px; }
.story-shot img { width: 100%; height: 100%; object-fit: cover; }
.chat-input-shot img { object-position: center 98%; }
.queue-shot img { object-position: center 14%; }
.edit-shot img { object-position: center 12%; }
.custom-answer-shot img { object-position: center 58%; }
.story-media figcaption { text-align: center; }
kbd { display: inline-block; min-width: 23px; border: 1px solid #c8d3cb; border-radius: 3px; padding: 0 5px; text-align: center; font: inherit; margin-inline: 2px; }
.inline-link { display: inline; background: none; padding: 3px 0; margin-left: 12px; color: var(--accent); font-size: 12px; }
.continuity { background: #f0f7f2; }
.continuity-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: center; }
.continuity h2 { color: #234e32; }
.continuity-layout > div:first-child > p { color: #4d6254; max-width: 29em; font-size: 14px; margin-top: 20px; line-height: 1.9; }
.continuity-layout > div:first-child > .secondary-copy { font-size: 12px; color: #53685a; margin-top: 14px; }
.proof-label { display: block; color: #4d6254; font-size: 12px; margin-bottom: 16px; }
.compression-shot { aspect-ratio: 3.3; border-radius: 5px; }
.compression-shot img { width: 100%; height: 100%; object-fit: cover; object-position: center 46%; }
.continuity-proof > p { font-size: 12px; color: #4d6254; margin-top: 18px; }
.notes-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; margin-bottom: 36px; }
.notes-heading h2 { font-size: clamp(28px, 3vw, 36px); }
.notes-heading p { color: var(--muted); font-size: 13px; margin-top: 14px; }
.notes-heading > a { white-space: nowrap; padding-bottom: 5px; }
details { border-top: 1px solid var(--line); }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { display: flex; align-items: center; gap: 20px; padding-block: 25px; cursor: pointer; font-size: 16px; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary > span { color: var(--muted); margin-left: auto; font-size: 12px; }
summary::after { content: "+"; font-size: 22px; color: var(--accent); line-height: 1; width: 18px; text-align: center; }
details[open] summary::after { content: "−"; }
details ul { margin: 0 0 28px; padding-left: 18px; max-width: 85ch; color: var(--muted); font-size: 14px; line-height: 2.1; }
details li + li { margin-top: 8px; }
.download { background: var(--canvas); text-align: center; }
.download-inner > img { margin-inline: auto; margin-bottom: 24px; }
.download h2 { font-size: clamp(30px, 3.8vw, 46px); }
.download-inner > p { color: var(--muted); font-size: 13px; margin-top: 19px; }
.download-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 28px; padding: 13px 20px; border-radius: 5px; font-size: 12px; transition: transform 180ms, background 180ms; }
.button:hover { transform: translateY(-2px); }
.primary { background: var(--accent); color: var(--on-accent); }
.primary:hover { background: #205f3a; }
.download-inner > .download-note { font-size: 12px; margin-top: 18px; }
.site-footer { padding-block: 30px; display: flex; justify-content: space-between; gap: 20px; align-items: center; color: var(--muted); font-size: 12px; }
.site-footer .brand { font-size: 16px; color: var(--ink); }
dialog { width: min(1500px, 96vw); max-width: none; height: 94dvh; max-height: 94dvh; padding: 0; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); background: var(--bg); overflow: hidden; }
dialog::backdrop { background: rgb(231 238 233 / 94%); }
.viewer-toolbar { display: flex; justify-content: space-between; gap: 24px; align-items: center; padding: 14px 22px; min-height: 64px; border-bottom: 1px solid var(--line); }
.viewer-toolbar > p { color: var(--muted); font-size: 13px; }
.viewer-close { flex-shrink: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 4px; padding: 5px 12px; font-size: 12px; }
.viewer-close span { font-size: 18px; margin-left: 12px; }
.viewer-scroll { height: calc(100% - 65px); overflow: auto; padding: 24px; display: flex; align-items: flex-start; justify-content: center; }
.viewer-scroll img { max-width: 100%; width: auto; max-height: none; object-fit: contain; }
@media (max-width: 1000px) {
  .collaboration-story { grid-template-columns: .8fr 1.2fr; gap: 32px; }
  .story-reverse { grid-template-columns: 1.2fr .8fr; }
  .creation-row { gap: 32px; grid-template-columns: .8fr 1.2fr; }
  .video-row { grid-template-columns: 1.2fr .8fr; }
  .wrap { width: calc(100% - 64px); }
  .nav-inner { width: calc(100% - 48px); }
  nav { gap: 20px; }
  .continuity-layout { gap: 40px; }
}
@media (max-width: 700px) {
  .collaboration-stories { margin-top: 24px; }
  .collaboration-story, .story-reverse { grid-template-columns: 1fr; gap: 24px; padding-block: 24px 36px; }
  .collaboration-story + .collaboration-story { padding-top: 36px; }
  .story-reverse .story-copy { order: -1; }
  .story-copy h3 { font-size: 25px; }
  .story-copy > p { font-size: 14px; margin-top: 14px; }
  .story-shot { aspect-ratio: 1.35; }
  .chat-input-shot { aspect-ratio: 1.65; }
  .creation-showcase { padding-block: 0 50px; }
  .creation-row, .video-row { grid-template-columns: 1fr; gap: 28px; padding-block: 25px 40px; }
  .creation-row + .creation-row { padding-top: 40px; }
  .video-row .creation-copy { order: -1; }
  .creation-copy h2 { font-size: 28px; }
  .creation-copy > p { font-size: 14px; margin-top: 16px; }
  .creation-copy ul { margin-top: 16px; font-size: 13px; }
  .image-detail-link { margin-top: 18px; }
  .creation-media figcaption { font-size: 12px; }

  html { scroll-padding-top: 84px; }
  .wrap { width: calc(100% - 40px); }
  .section-space { padding-block: 65px; }
  .nav-inner { height: 64px; width: calc(100% - 36px); gap: 10px; }
  .brand { font-size: 18px; gap: 6px; }
  .brand img { width: 29px; height: 29px; }
  .nav-version { margin-left: 3px; padding-left: 9px; font-size: 12px; }
  nav { display: none; }
  .nav-download { font-size: 12px; gap: 12px; }
  .hero { padding-top: 44px; }
  .hero-copy { padding-bottom: 40px; }
  .release-date { font-size: 12px; margin-bottom: 22px; }
  h1 { font-size: clamp(39px, 9.6vw, 66px); }
  .hero-statement { font-size: clamp(21px, 5.5vw, 32px); margin-top: 18px; }
  .hero-description { font-size: 12px; margin-top: 18px; line-height: 1.95; }
  .hero-description br { display: none; }
  .hero-copy .text-link { font-size: 12px; margin-top: 20px; }
  .zoom-hint { bottom: 9px; right: 9px; font-size: 12px; padding: 6px 8px; }
  figcaption { font-size: 12px; line-height: 1.9; }
  .section-heading { display: block; }
  h2 { font-size: 30px; }
  .section-heading > p { margin-top: 22px; font-size: 12px; }
  .section-heading > p br { display: none; }
  h3 { font-size: 16px; }
  .continuity-layout { grid-template-columns: 1fr; gap: 30px; }
  .continuity-layout > div:first-child > p { font-size: 13px; max-width: none; }
  .continuity-layout > div:first-child > .secondary-copy { font-size: 12px; }
  .compression-shot { aspect-ratio: 3; }
  .proof-label, .continuity-proof > p { font-size: 12px; }
  .notes-heading { display: block; margin-bottom: 28px; }
  .notes-heading p { font-size: 12px; }
  .notes-heading > a { margin-top: 20px; font-size: 12px; }
  summary { font-size: 14px; padding-block: 21px; gap: 12px; flex-wrap: wrap; }
  summary > span { font-size: 12px; margin-left: 0; }
  summary::after { margin-left: auto; }
  details ul { font-size: 12px; }
  .download-inner > img { width: 54px; height: 54px; }
  .download-actions { flex-direction: column; max-width: 340px; margin-inline: auto; }
  .button { min-height: 48px; font-size: 12px; }
  .site-footer { flex-wrap: wrap; gap: 12px; padding-block: 25px; }
  .site-footer > :last-child { width: 100%; font-size: 12px; }
  .viewer-toolbar { gap: 10px; padding-inline: 12px; }
  .viewer-toolbar > p { font-size: 12px; }
  .viewer-scroll { padding: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}