:root {
  color-scheme: dark;
  --ink: #f1f4ff;
  --muted: #a3aec7;
  --faint: #6f7b96;
  --surface: #10182a;
  --surface-2: #151f35;
  --line: rgba(155, 174, 218, 0.16);
  --line-strong: rgba(155, 174, 218, 0.25);
  --accent: #7197ff;
  --accent-2: #a476ff;
  --green: #68d8a4;
  --page-max: 1480px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "Yu Gothic UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body {
  min-width: 320px;
  overflow-x: hidden;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 83% 4%, rgba(85, 112, 255, 0.18), transparent 34rem),
    linear-gradient(180deg, #080d18 0%, #0a1020 42%, #0d1424 100%);
  font-size: 16px;
  line-height: 1.65;
}

a { color: inherit; text-decoration: none; }
button, select, a { font: inherit; -webkit-tap-highlight-color: transparent; }
button, select { color: inherit; }
svg { display: block; }
.layout-shell, .header-inner, .metric-shell, .footer-inner { width: min(calc(100% - 48px), var(--page-max)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 8px 12px;
  border-radius: 6px;
  color: #071020;
  background: white;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 13, 24, 0.86);
  backdrop-filter: blur(20px);
}
.header-inner { height: 76px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 38px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 750; letter-spacing: -0.025em; }
.brand-mark { width: 34px; height: 34px; flex: 0 0 auto; }
.site-header nav { display: flex; align-items: center; gap: 34px; color: var(--muted); font-size: 0.92rem; }
.site-header nav a, .site-footer a { transition: color 160ms ease; }
.site-header nav a:hover, .site-footer a:hover { color: white; }
.header-actions { justify-self: end; display: flex; align-items: center; gap: 10px; }
.language-control {
  position: relative;
  height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #cbd5ec;
  background: rgba(255, 255, 255, 0.025);
}
.language-control svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.6; }
.language-control select { max-width: 104px; padding: 0 16px 0 0; border: 0; outline: 0; background: transparent; cursor: pointer; font-size: 0.82rem; }
.language-control select:focus-visible { outline: 2px solid var(--accent); outline-offset: 7px; }
.language-control option { color: #111827; background: white; }
.header-download {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  border: 1px solid rgba(126, 159, 255, 0.34);
  border-radius: 8px;
  color: #e1e8ff;
  background: rgba(64, 102, 202, 0.16);
  font-size: 0.84rem;
  font-weight: 680;
  transition: border-color 160ms ease, background 160ms ease;
}
.header-download:hover { border-color: rgba(126, 159, 255, 0.62); background: rgba(64, 102, 202, 0.28); }

.hero {
  min-height: 760px;
  display: grid;
  grid-template-columns: minmax(390px, 0.78fr) minmax(620px, 1.22fr);
  align-items: center;
  gap: clamp(54px, 6vw, 112px);
  padding-block: 88px 98px;
}
.hero-copy { max-width: 650px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 21px; color: #a9bced; font-size: 0.78rem; letter-spacing: 0.135em; }
.eyebrow span { width: 25px; height: 1px; background: currentColor; }
.eyebrow b { font-weight: 760; }
.eyebrow.light { color: #cad5ff; }
.hero h1, .section-intro h2, .workflow-copy h2, .download-copy h2 { margin: 0; letter-spacing: -0.052em; line-height: 1.04; }
.hero h1 { font-size: clamp(2.75rem, 3.45vw, 4.55rem); font-weight: 770; }
.hero h1 span, .hero h1 em { display: block; }
.hero h1 em { margin-top: 7px; color: transparent; background: linear-gradient(105deg, #8caaff, #b78dff 64%, #79d5df); background-clip: text; font-style: normal; white-space: pre-line; }
.hero-lead { max-width: 610px; margin: 30px 0 0; color: var(--muted); font-size: 1.07rem; line-height: 1.82; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 35px; }
.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 21px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 700;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}
.button:hover { transform: translateY(-2px); }
.button svg { width: 20px; height: 20px; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.button.primary { color: #fff; background: linear-gradient(110deg, #3979ee, #7957df); box-shadow: 0 14px 38px rgba(57, 89, 214, 0.31); }
.button.primary:hover { box-shadow: 0 18px 45px rgba(57, 89, 214, 0.42); }
.button.secondary { border-color: var(--line); color: #d3dbed; background: rgba(255, 255, 255, 0.025); }
.button.secondary:hover { border-color: rgba(147, 169, 220, 0.36); background: rgba(255, 255, 255, 0.055); }
.release-facts { display: flex; flex-wrap: wrap; gap: 10px 19px; margin-top: 24px; color: var(--faint); font-size: 0.8rem; }
.release-facts span + span::before { content: "·"; margin-right: 19px; }

.workspace-shell { position: relative; min-width: 0; }
.workspace-glow { position: absolute; inset: 9% -5% -8% 13%; border-radius: 50%; background: rgba(72, 101, 220, 0.24); filter: blur(82px); }
.window-frame { position: relative; overflow: hidden; border: 1px solid rgba(150, 168, 210, 0.22); border-radius: 13px; background: #111827; box-shadow: 0 42px 92px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.025) inset; }
.window-titlebar, .demo-toolbar, .demo-tabs, .demo-status { display: flex; align-items: center; border-bottom: 1px solid rgba(153, 171, 213, 0.13); }
.window-titlebar { height: 40px; justify-content: space-between; padding: 0 13px; color: #9ba6bd; background: #0b111e; font-size: 0.75rem; }
.window-brand { display: flex; align-items: center; gap: 8px; }
.window-brand svg { width: 18px; height: 18px; }
.window-controls { display: flex; gap: 14px; }
.window-controls i { width: 9px; height: 9px; display: block; border: 1px solid #586176; border-radius: 2px; }
.demo-toolbar { min-height: 48px; justify-content: space-between; gap: 12px; padding: 7px 11px; background: #111827; }
.demo-file-actions { display: flex; gap: 15px; color: #7c879e; font-size: 0.76rem; }
.demo-view-switcher { display: flex; padding: 2px; border: 1px solid rgba(148, 166, 208, 0.15); border-radius: 7px; background: #0c1321; }
.demo-view-switcher button { padding: 5px 9px; border: 0; border-radius: 5px; color: #7e89a1; background: transparent; font-size: 0.72rem; cursor: pointer; white-space: nowrap; }
.demo-view-switcher button.active { color: #d3dfff; background: #20345f; }
.demo-view-switcher button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.demo-tabs { height: 36px; padding: 0 11px; color: #aab5cc; background: #0c1321; font-size: 0.73rem; }
.demo-tabs > span { height: 27px; display: inline-flex; align-items: center; gap: 7px; padding: 0 13px; border: 1px solid rgba(148, 166, 208, 0.15); border-bottom-color: #111827; border-radius: 6px 6px 0 0; background: #111827; }
.demo-tabs span b { width: 5px; height: 5px; border-radius: 50%; background: #6d95ff; }
.demo-tabs > i { margin-left: 10px; color: #68748e; font-style: normal; }
.demo-stage { height: 430px; display: grid; grid-template-columns: 1fr 1fr; background: #0f1624; }
.source-pane, .preview-pane { min-width: 0; overflow: hidden; }
.source-pane { padding: 17px 0; border-right: 1px solid rgba(150, 168, 210, 0.13); background: #101722; }
.source-pane ol { margin: 0; padding: 0; list-style: none; counter-reset: lines; }
.source-pane li { position: relative; min-height: 29px; overflow: hidden; padding: 3px 16px 3px 49px; color: #aab5ca; counter-increment: lines; font: 0.73rem/1.85 "Cascadia Code", "SFMono-Regular", Consolas, monospace; text-overflow: ellipsis; white-space: nowrap; }
.source-pane li::before { content: counter(lines); position: absolute; left: 0; width: 35px; color: #505b71; text-align: right; }
.source-pane li.changed::after { content: ""; position: absolute; top: 6px; bottom: 6px; left: 3px; width: 2px; border-radius: 2px; background: #68d6a0; }
.source-pane code strong { color: #d5def1; font-weight: 650; }
.preview-pane { display: grid; grid-template-columns: minmax(0, 1fr) 116px; background: #141b2a; }
.preview-pane article { padding: 31px 32px; }
.preview-kicker { color: #586681; font-size: 0.69rem; letter-spacing: 0.12em; text-transform: uppercase; }
.preview-pane h2 { margin: 11px 0 9px; color: #f2f5fc; font-size: 1.72rem; line-height: 1.2; }
.preview-pane h3 { margin: 29px 0 10px; padding-bottom: 8px; border-bottom: 1px solid rgba(150, 168, 210, 0.12); color: #e5ebf7; font-size: 0.98rem; }
.preview-pane p, .preview-pane li { color: #9eabc1; font-size: 0.75rem; }
.preview-pane ul { padding-left: 19px; }
.formula { width: 116px; margin: 27px auto 0; padding: 10px; border: 1px solid rgba(110, 147, 255, 0.18); color: #dce6ff; background: rgba(63, 102, 204, 0.08); text-align: center; font-family: Georgia, serif; font-style: italic; }
.chapter-mini { padding: 17px 8px; border-left: 1px solid rgba(150, 168, 210, 0.12); color: #68758f; background: #0f1624; font-size: 0.69rem; }
.chapter-mini > span { display: block; margin: 0 7px 9px; color: #95a3bd; font-weight: 700; text-transform: uppercase; }
.chapter-mini button { width: 100%; overflow: hidden; padding: 7px; border: 0; border-radius: 5px; color: #74809a; background: transparent; text-align: left; text-overflow: ellipsis; white-space: nowrap; font-size: 0.68rem; }
.chapter-mini button.active { color: #b4c8ff; background: #1a315e; }
.demo-status { height: 29px; justify-content: flex-end; gap: 12px; padding: 0 12px; border-top: 1px solid rgba(150, 168, 210, 0.13); border-bottom: 0; color: #626e86; background: #0b111e; font-size: 0.67rem; }
.demo-status b { color: #72cda0; font-weight: 650; }
.demo-stage[data-mode="source"], .demo-stage[data-mode="preview"] { grid-template-columns: 1fr; }
.demo-stage[data-mode="source"] .preview-pane, .demo-stage[data-mode="preview"] .source-pane { display: none; }
.demo-stage[data-mode="stacked"] { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
.demo-stage[data-mode="stacked"] .source-pane { border-right: 0; border-bottom: 1px solid rgba(150, 168, 210, 0.13); }
.demo-stage[data-mode="stacked"] .source-pane li { min-height: 23px; padding-block: 0; }
.demo-stage[data-mode="stacked"] .preview-pane article { padding-top: 13px; }
.demo-stage[data-mode="stacked"] .preview-pane article > :nth-child(n+4) { display: none; }

.metric-band { border-block: 1px solid var(--line); background: rgba(12, 19, 35, 0.72); }
.metric-shell { display: grid; grid-template-columns: repeat(4, 1fr); }
.metric-shell > div { min-height: 126px; display: flex; flex-direction: column; justify-content: center; padding: 22px clamp(24px, 3vw, 48px); }
.metric-shell > div + div { border-left: 1px solid var(--line); }
.metric-shell strong { color: #e4eafd; font-size: 1.35rem; font-weight: 740; }
.metric-shell span { margin-top: 3px; color: var(--faint); font-size: 0.82rem; }

.feature-section { padding-block: 138px; border-bottom: 1px solid var(--line); background: linear-gradient(180deg, rgba(15, 23, 42, 0.7), rgba(10, 16, 30, 0.25)); }
.section-intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, 0.58fr); align-items: end; gap: clamp(50px, 8vw, 150px); }
.section-intro h2, .workflow-copy h2, .download-copy h2 { font-size: clamp(2.7rem, 4.3vw, 4.7rem); }
.section-intro > p { max-width: 550px; margin: 0 0 7px; color: var(--muted); font-size: 1.03rem; line-height: 1.85; }
.feature-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 15px; margin-top: 68px; }
.feature-card { position: relative; min-height: 270px; grid-column: span 4; padding: 31px; overflow: hidden; border: 1px solid var(--line); background: linear-gradient(145deg, rgba(23, 33, 56, 0.9), rgba(13, 19, 35, 0.9)); }
.feature-card.feature-sync { min-height: 320px; grid-column: span 7; padding-right: 250px; background: linear-gradient(130deg, rgba(30, 57, 119, 0.7), rgba(27, 30, 65, 0.88)); }
.feature-card.feature-views { grid-column: span 5; }
.feature-card.feature-diff { min-height: 190px; grid-column: span 12; display: grid; grid-template-columns: 54px minmax(0, 680px); align-items: start; gap: 25px; }
.feature-card h3 { margin: 27px 0 12px; font-size: 1.15rem; letter-spacing: -0.02em; }
.feature-card p { max-width: 570px; margin: 0; color: var(--muted); font-size: 0.92rem; line-height: 1.78; }
.feature-number { position: absolute; top: 22px; left: 28px; color: #8ba7e9; font: 0.72rem/1 "Cascadia Code", monospace; }
.feature-sync h3 { margin-top: 48px; }
.feature-icon { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid rgba(120, 153, 242, 0.27); color: #91b2ff; background: rgba(73, 104, 192, 0.11); font: 0.87rem/1 "Cascadia Code", monospace; }
.feature-diff h3 { margin-top: 1px; }
.sync-visual { position: absolute; right: 39px; bottom: 38px; display: flex; align-items: center; gap: 15px; }
.sync-visual span { width: 54px; height: 54px; display: grid; place-items: center; border: 1px solid rgba(126, 157, 238, 0.28); color: #b0c5ff; background: rgba(74, 105, 198, 0.13); font: 0.66rem/1 "Cascadia Code", monospace; }
.sync-visual i { position: relative; width: 62px; height: 1px; background: linear-gradient(90deg, #6b91f6, #9575f1); }
.sync-visual i::before, .sync-visual i::after { content: ""; position: absolute; top: -2px; width: 5px; height: 5px; border-top: 1px solid #89a5f8; border-right: 1px solid #89a5f8; }
.sync-visual i::before { left: 0; transform: rotate(-135deg); }
.sync-visual i::after { right: 0; transform: rotate(45deg); }

.workflow-section { display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(430px, 0.78fr); align-items: center; gap: clamp(70px, 10vw, 170px); padding-block: 145px; }
.workflow-copy > p:not(.eyebrow) { max-width: 710px; margin: 27px 0 0; color: var(--muted); font-size: 1rem; line-height: 1.82; }
.check-list { display: grid; gap: 15px; margin: 34px 0 0; padding: 0; list-style: none; color: #c8d1e4; font-size: 0.93rem; }
.check-list li { display: flex; align-items: flex-start; gap: 11px; }
.check-list span { color: var(--green); }
.check-list b { font-weight: 520; }
.recovery-wrap { position: relative; }
.recovery-label { margin: 0 0 12px 2px; color: #7786a6; font-size: 0.7rem; font-weight: 720; letter-spacing: 0.13em; }
.recovery-card { border: 1px solid rgba(151, 169, 211, 0.19); background: #0d1423; box-shadow: 0 25px 65px rgba(0, 0, 0, 0.34); }
.recovery-head, .recovery-item, .recovery-foot { padding: 18px 20px; }
.recovery-head { display: flex; justify-content: space-between; border-bottom: 1px solid var(--line); color: #e1e7f5; font-size: 0.9rem; font-weight: 680; }
.recovery-head b { color: #83a2ef; font-size: 0.73rem; font-weight: 650; }
.recovery-item { display: grid; grid-template-columns: 36px 1fr auto; align-items: center; gap: 13px; border-bottom: 1px solid var(--line); }
.doc-icon { width: 31px; height: 36px; display: block; border: 1px solid #4d69ad; background: linear-gradient(135deg, transparent 7px, rgba(67, 95, 170, 0.17) 0); }
.recovery-item div { min-width: 0; display: flex; flex-direction: column; }
.recovery-item strong { overflow: hidden; color: #d0d8ea; font-size: 0.82rem; text-overflow: ellipsis; white-space: nowrap; }
.recovery-item span, .recovery-foot { color: #69758d; font-size: 0.71rem; }
.recovery-item button { padding: 6px 10px; border: 1px solid rgba(108, 146, 240, 0.28); border-radius: 5px; color: #a6bef9; background: rgba(56, 85, 166, 0.15); font-size: 0.72rem; }
.recovery-foot { text-align: center; }

.download-wrap { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 90px; margin-bottom: 110px; padding: 72px 78px; border: 1px solid rgba(126, 155, 235, 0.24); background: linear-gradient(112deg, #172f6e, #31276f 72%, #263970); box-shadow: 0 30px 90px rgba(14, 22, 58, 0.4); }
.download-copy h2 { max-width: 720px; }
.download-copy h2 { font-size: clamp(2.45rem, 3.5vw, 3.9rem); }
.download-copy > p:last-child { max-width: 720px; margin: 24px 0 0; color: #bfcae6; }
.download-actions { min-width: 330px; display: flex; flex-direction: column; align-items: stretch; gap: 15px; }
.download-primary { min-height: 68px; flex-wrap: wrap; color: #19274c; background: #fff; box-shadow: 0 16px 38px rgba(8, 13, 38, 0.26); }
.download-primary small { width: 100%; display: block; margin-top: -8px; color: #75809a; text-align: center; font-size: 0.66rem; font-weight: 520; }
.portable-link { color: #d0dbff; text-align: center; font-size: 0.86rem; }
.portable-link i { display: inline-block; margin-left: 6px; font-style: normal; transition: transform 160ms ease; }
.portable-link:hover i { transform: translateX(4px); }

.site-footer { border-top: 1px solid var(--line); }
.footer-inner { min-height: 132px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 34px; color: var(--faint); font-size: 0.8rem; }
.footer-brand { color: #d4dcec; }
.footer-inner p { margin: 0; }
.footer-inner > div { display: flex; gap: 24px; }

html[lang="ja"] .hero h1 { font-size: clamp(2.7rem, 3.25vw, 4.3rem); letter-spacing: -0.04em; }
html[lang="ja"] .hero-copy { max-width: 690px; }
html[lang="ja"] .section-intro h2,
html[lang="ja"] .workflow-copy h2,
html[lang="ja"] .download-copy h2 { font-size: clamp(2.55rem, 3.8vw, 4.25rem); letter-spacing: -0.04em; }

@media (max-width: 1220px) {
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 60px; padding-top: 76px; }
  .hero-copy { max-width: 820px; }
  .workspace-shell { width: min(100%, 980px); }
  .section-intro { grid-template-columns: 1fr 0.65fr; gap: 60px; }
  .feature-card.feature-sync, .feature-card.feature-views { grid-column: span 6; }
  .feature-card:not(.feature-sync):not(.feature-views):not(.feature-diff) { grid-column: span 6; }
  .workflow-section { gap: 65px; }
}

@media (max-width: 900px) {
  .header-inner { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .hero h1 { max-width: 760px; }
  .section-intro { grid-template-columns: 1fr; align-items: start; gap: 25px; }
  .section-intro > p { max-width: 720px; }
  .feature-card, .feature-card.feature-sync, .feature-card.feature-views, .feature-card:not(.feature-sync):not(.feature-views):not(.feature-diff) { grid-column: span 12; }
  .feature-card.feature-sync { min-height: 300px; }
  .workflow-section { grid-template-columns: 1fr; }
  .recovery-wrap { width: min(100%, 650px); }
  .download-wrap { grid-template-columns: 1fr; gap: 45px; padding: 56px; }
  .download-actions { min-width: 0; max-width: 460px; }
}

@media (max-width: 700px) {
  .layout-shell, .header-inner, .metric-shell, .footer-inner { width: min(calc(100% - 28px), var(--page-max)); }
  .header-inner { height: 70px; gap: 12px; }
  .brand { gap: 9px; }
  .brand-mark { width: 31px; height: 31px; }
  .header-actions { gap: 7px; }
  .language-control { height: 39px; padding-inline: 8px; }
  .language-control select { max-width: 88px; font-size: 0.76rem; }
  .header-download { min-height: 39px; padding-inline: 11px; font-size: 0.77rem; }
  .hero { gap: 50px; padding-block: 57px 72px; }
  .hero h1 { font-size: clamp(2.65rem, 11.5vw, 4rem); }
  .hero-lead { font-size: 1rem; }
  .window-frame { border-radius: 10px; }
  .demo-file-actions { display: none; }
  .demo-toolbar { justify-content: flex-end; }
  .demo-stage { height: 430px; }
  .demo-stage[data-mode="split"] { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
  .demo-stage[data-mode="split"] .source-pane { border-right: 0; border-bottom: 1px solid rgba(150, 168, 210, 0.13); }
  .demo-stage[data-mode="split"] .source-pane li { min-height: 23px; padding-block: 0; }
  .preview-pane { grid-template-columns: 1fr; }
  .chapter-mini { display: none; }
  .preview-pane article { padding: 21px 24px; }
  .metric-shell { width: 100%; grid-template-columns: repeat(2, 1fr); }
  .metric-shell > div { min-height: 108px; padding: 18px 24px; }
  .metric-shell > div:nth-child(3) { border-top: 1px solid var(--line); border-left: 0; }
  .metric-shell > div:nth-child(4) { border-top: 1px solid var(--line); }
  .feature-section { padding-block: 96px; }
  .feature-grid { margin-top: 48px; }
  .feature-card { min-height: 245px; padding: 27px; }
  .feature-card.feature-sync { min-height: 360px; padding-right: 27px; }
  .feature-sync p { max-width: 100%; }
  .sync-visual { right: auto; bottom: 30px; left: 27px; }
  .feature-card.feature-diff { grid-template-columns: 44px 1fr; gap: 17px; }
  .workflow-section { padding-block: 100px; }
  .download-wrap { margin-bottom: 65px; padding: 43px 30px; }
  .footer-inner { grid-template-columns: 1fr; gap: 14px; padding-block: 30px; }
}

@media (max-width: 480px) {
  .brand > span { font-size: 0.94rem; }
  .language-control svg { display: none; }
  .language-control select { max-width: 75px; padding-right: 5px; }
  .header-download { padding-inline: 9px; }
  .hero h1 { font-size: clamp(2.45rem, 10.8vw, 3.25rem); }
  .button { width: 100%; }
  .release-facts { gap: 8px 10px; }
  .release-facts span + span::before { margin-right: 10px; }
  .demo-view-switcher button { padding-inline: 6px; font-size: 0.66rem; }
  .demo-stage { height: 390px; }
  .source-pane li { padding-left: 42px; font-size: 0.64rem; }
  .preview-pane article { padding: 18px; }
  .preview-pane h2 { font-size: 1.45rem; }
  .metric-shell > div { padding-inline: 17px; }
  .section-intro h2, .workflow-copy h2, .download-copy h2 { font-size: clamp(2.35rem, 11vw, 3.2rem); }
  .download-copy h2 { font-size: clamp(2.2rem, 9.8vw, 2.85rem); }
  .feature-card.feature-diff { grid-template-columns: 1fr; }
  .recovery-item { grid-template-columns: 31px 1fr; }
  .recovery-item button { display: none; }
  .footer-inner > div { flex-wrap: wrap; gap: 14px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}