:root {
  --c-bg: #f6f6f9;
  --c-panel: #ffffff;
  --c-panel-2: #eceef4;
  --c-border: #dfe2ea;
  --c-border-strong: #c8cdda;
  --c-accent: #2c64e3;
  --c-accent-dark: #1c46b0;
  --c-accent-tint: #e9effc;
  --c-text: #1a1b22;
  --c-muted: #5b5f6e;
  --c-success: #1f8a5b;
  --c-warn: #b7791f;
  --c-error: #d14b3f;
  --c-aqua: #a8ccd5;
  --c-aqua-deep: #1d6b7a;
  --c-lavender: #cdb4de;
  --c-periwinkle: #a9bdf6;
  --c-graphite: #1f2026;
  --c-graphite-edge: #3a3c46;
  --c-graphite-key: #2b2c33;
  --c-on-dark: #ffffff;
  --c-veil: rgba(28, 70, 176, 0.88);
  --c-veil-line: rgba(255, 255, 255, 0.52);
  --c-focus: rgba(44, 100, 227, 0.55);
  --c-overlay: rgba(26, 27, 34, 0.28);
  --c-clear: transparent;
  --shadow-device: 0 60px 100px -36px rgba(18, 28, 74, 0.44);
  --shadow-float: 0 28px 64px -30px rgba(26, 27, 34, 0.26);
  --shadow-chip: 0 8px 20px -12px rgba(20, 44, 64, 0.32);
  --font-display: 'Inter', 'Noto Sans SC', -apple-system, 'PingFang SC', 'Hiragino Sans', 'Apple SD Gothic Neo', 'Microsoft YaHei', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', -apple-system, 'PingFang SC', 'Hiragino Sans', 'Apple SD Gothic Neo', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --r-btn: 14px;
  --r-card: 28px;
  --r-section: 36px;
  --r-menu: 20px;
  --r-item: 12px;
  --r-logo: 10px;
  --r-shot: 10px;
  --r-pill: 999px;
  --r-round: 50%;
  --r-key: 2px;
  --weight-body: 400;
  --weight-medium: 550;
  --weight-strong: 650;
  --weight-display: 800;
  --tracking-title: -0.02em;
  --tracking-latin: -0.025em;
  --text-small: 13px;
  --text-base: 16px;
  --text-lead: 18px;
  --h1-size: clamp(34px, 2.4vw + 14px, 48px);
  --h2-size: clamp(26px, 2.6vw, 36px);
  --h3-size: 22px;
  --nav-h: 72px;
  --strip-h: 56px;
  --hero-h: clamp(600px, calc(100vh - 220px), 720px);
  --gutter: max(72px, calc((100vw - 1296px) / 2));
  --reading-width: 1120px;
  --header-width: 1280px;
  --section-space: 96px;
  --ph: clamp(200px, 17.8vw, 262px);
  --r-phone: calc(var(--ph) * 0.18);
  --r-screen: calc(var(--ph) * 0.145);
  --r-screen-card: calc(var(--ph) * 0.062);
  --ease-out: cubic-bezier(0.2, 0.7, 0.3, 1);
  --time-ui: 180ms;
  --time-reveal: 550ms;
}
*,
*::before,
*::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 24px; }
html.nav-open { overflow: hidden; }
body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
main, section, article, aside, nav, div, figure { min-width: 0; }
img, svg { max-width: 100%; }
img { height: auto; }
svg { flex-shrink: 0; }
button, input, select, textarea { font: inherit; }
button, summary { cursor: pointer; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
a, button { -webkit-tap-highlight-color: var(--c-clear); }
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid var(--c-focus);
  outline-offset: 3px;
  border-radius: var(--r-item);
}
[hidden] { display: none !important; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: var(--weight-display);
  letter-spacing: var(--tracking-title);
  text-wrap: balance;
  overflow-wrap: break-word;
}
h1 { font-size: var(--h1-size); line-height: 1.15; }
h2 { font-size: var(--h2-size); line-height: 1.25; }
h3 { font-size: var(--h3-size); line-height: 1.35; }
p { margin-top: 0; }
strong { font-weight: var(--weight-strong); }
code, pre, kbd { font-family: var(--font-mono); }
code { overflow-wrap: anywhere; }
pre {
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  padding: 24px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-item);
  background: var(--c-panel-2);
  color: var(--c-text);
  line-height: 1.75;
  overscroll-behavior-inline: contain;
}
pre code { overflow-wrap: normal; white-space: pre; }
hr { border: 0; border-top: 1px solid var(--c-border); margin-block: 32px; }
.wrap {
  width: 100%;
  max-width: calc(var(--reading-width) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-top: var(--section-space); padding-bottom: var(--section-space); }
.section-white { background: var(--c-panel); color: var(--c-text); }
.section-gray { background: var(--c-panel-2); color: var(--c-text); }
.section-blue { background: var(--c-periwinkle); color: var(--c-text); }
.section-heading { margin-top: 0; margin-bottom: 20px; }
.lead { max-width: 40em; color: var(--c-muted); font-size: var(--text-lead); line-height: 1.8; }
.muted { color: var(--c-muted); }
.text-accent { color: var(--c-accent-dark); }
.keep { white-space: nowrap; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: absolute;
  left: 16px;
  top: 12px;
  z-index: 80;
  padding: 10px 16px;
  background: var(--c-panel);
  color: var(--c-accent-dark);
  border: 1px solid var(--c-border);
  border-radius: var(--r-item);
  font-weight: var(--weight-strong);
}
.skip-link:not(:focus), .blog-skip:not(:focus) {
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 12px 24px;
  border: 1px solid var(--c-clear);
  border-radius: var(--r-btn);
  font-size: var(--text-base);
  font-weight: var(--weight-strong);
  line-height: 1.4;
  text-align: center;
  transition: background-color var(--time-ui), border-color var(--time-ui), color var(--time-ui);
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--c-accent); color: var(--c-on-dark); border-color: var(--c-accent); }
.btn-primary:hover, .btn-primary.is-hover { background: var(--c-accent-dark); color: var(--c-on-dark); border-color: var(--c-accent-dark); }
.btn-secondary { background: var(--c-panel); color: var(--c-text); border-color: var(--c-border-strong); }
.btn-secondary:hover, .btn-secondary.is-hover { background: var(--c-panel); color: var(--c-accent-dark); border-color: var(--c-accent); }
.btn:disabled { background: var(--c-panel-2); color: var(--c-muted); border-color: var(--c-border); cursor: not-allowed; }
.btn.is-focus { outline: 3px solid var(--c-focus); outline-offset: 3px; }
.arrow { color: var(--c-muted); }
.text-link { color: var(--c-accent-dark); text-decoration: underline; text-underline-offset: 4px; }
.topbar {
  position: relative;
  z-index: 60;
  min-height: var(--nav-h);
  background: var(--c-panel);
  color: var(--c-text);
  border-bottom: 1px solid var(--c-border);
}
.topbar-inner {
  width: 100%;
  max-width: min(100%, calc(var(--header-width) + var(--gutter) * 2));
  min-height: var(--nav-h);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  font-family: var(--font-display);
  font-weight: var(--weight-display);
  font-size: 18px;
  letter-spacing: var(--tracking-title);
  color: var(--c-text);
}
.brand-mark {
  display: block;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: var(--r-logo);
}
.brand-placeholder {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: var(--r-logo);
  border: 1px solid var(--c-border-strong);
  background: var(--c-accent-tint);
  color: var(--c-accent-dark);
}
.nav { display: flex; align-items: center; min-width: 0; margin-left: auto; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-link, .more > summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  color: var(--c-muted);
  font-size: 15px;
  font-weight: var(--weight-medium);
  white-space: nowrap;
}
.nav-link:hover, .more > summary:hover { background: var(--c-bg); color: var(--c-text); }
.nav-link[aria-current="page"], .more-item[aria-current="page"], .more.is-current > summary {
  background: var(--c-accent-tint);
  color: var(--c-accent-dark);
  font-weight: var(--weight-strong);
}
.more { position: relative; }
.more > summary { list-style: none; user-select: none; }
.more > summary::-webkit-details-marker { display: none; }
.more[open] > summary { background: var(--c-bg); color: var(--c-text); }
.caret { font-size: 11px; }
.more-panel, .language-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 12px);
  width: 268px;
  padding: 10px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-menu);
  background: var(--c-panel);
  color: var(--c-text);
  box-shadow: var(--shadow-float);
}
.more-group + .more-group { margin-top: 6px; padding-top: 6px; border-top: 1px solid var(--c-border); }
.more-title { margin: 6px 12px 4px; font-family: var(--font-mono); font-size: 11px; color: var(--c-muted); }
.more-item { display: block; padding: 10px 12px; border-radius: var(--r-item); }
.more-item:hover { background: var(--c-bg); color: var(--c-text); }
.more-item b { display: block; font-size: 15px; font-weight: var(--weight-strong); }
.more-item span { display: block; font-size: 13px; color: var(--c-muted); }
.header-tools { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.language-control { position: relative; }
.lang, .menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 14px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-pill);
  background: var(--c-panel);
  color: var(--c-text);
  font-size: 14px;
  white-space: nowrap;
}
.lang svg { width: 16px; height: 16px; color: var(--c-muted); }
.lang-short { display: none; }
.language-panel { width: 200px; }
.language-panel a { display: flex; align-items: center; min-height: 44px; padding: 10px 12px; border-radius: var(--r-item); }
.language-panel a:hover, .language-panel a[aria-current] { background: var(--c-accent-tint); color: var(--c-accent-dark); }
.menu-toggle { display: none; min-width: 44px; }
.menu-toggle svg { width: 20px; height: 20px; }
.mobile-drawer, .menu-veil { display: none; }
.hero {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 46% 54%;
  height: var(--hero-h);
  overflow-x: clip;
}
.hero-copy {
  background: var(--c-panel);
  color: var(--c-text);
  padding: 0 56px 0 var(--gutter);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-copy-inner { max-width: 560px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px 7px 12px;
  border-radius: var(--r-pill);
  background: var(--c-accent-tint);
  color: var(--c-accent-dark);
  font-size: 13px;
  font-weight: var(--weight-strong);
}
.eyebrow-dot, .status-dot {
  width: 8px;
  height: 8px;
  flex-shrink: 0;
  border-radius: var(--r-round);
  background: var(--c-accent);
  color: var(--c-text);
}
.eyebrow-dot { box-shadow: 0 0 0 3px var(--c-panel); }
.hero-title {
  margin: 26px 0 34px;
  font-size: var(--h1-size);
  font-weight: var(--weight-display);
  line-height: 1.1;
}
.hero-title span { display: block; }
.hero-title .latin { letter-spacing: var(--tracking-latin); }
.hero-facts { margin: 28px 0 0; max-width: 31em; font-size: 16.5px; line-height: 1.75; color: var(--c-muted); }
.hero-facts strong { color: var(--c-text); }
.device-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 22px;
  margin: 34px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid var(--c-border);
}
.device-link { display: inline-flex; align-items: center; gap: 8px; color: var(--c-muted); font-size: 14px; font-weight: var(--weight-medium); }
.device-link svg { width: 20px; height: 20px; color: var(--c-text); }
.device-link:hover, .device-link:hover svg { color: var(--c-accent); }
.store-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  padding: 4px 12px;
  border-radius: var(--r-pill);
  border: 1px solid var(--c-border-strong);
  font-size: 13px;
  font-weight: var(--weight-strong);
}
.hero-panel { position: relative; background: var(--c-periwinkle); color: var(--c-text); }
.geo-circle { position: absolute; left: 5%; top: 7%; width: calc(var(--ph) * 1.08); aspect-ratio: 1; border-radius: var(--r-round); background: var(--c-lavender); color: var(--c-text); }
.geo-dots {
  position: absolute;
  right: 6%;
  bottom: 9%;
  width: calc(var(--ph) * 0.72);
  aspect-ratio: 1;
  background-image: radial-gradient(circle, var(--c-accent) 1.5px, var(--c-clear) 1.9px);
  background-size: 14px 14px;
  opacity: 0.5;
}
.phone {
  position: absolute;
  width: var(--ph);
  height: calc(var(--ph) * 2.08);
  padding: calc(var(--ph) * 0.038);
  border-radius: var(--r-phone);
  background: var(--c-graphite);
  color: var(--c-on-dark);
  box-shadow: inset 0 0 0 2px var(--c-graphite-edge), var(--shadow-device);
}
.phone::before, .phone::after, .phone .key {
  content: "";
  position: absolute;
  width: 3px;
  border-radius: var(--r-key);
  background: var(--c-graphite-key);
  color: var(--c-on-dark);
}
.phone::before { left: -3px; top: 25%; height: 8%; }
.phone .key { left: -3px; top: 35%; height: 8%; }
.phone::after { right: -3px; top: 29%; height: 13%; }
.phone-back { left: 47.8%; top: calc(var(--ph) * 0.13); transform: rotate(10deg); z-index: 1; }
.phone-front { left: 22%; bottom: calc(var(--ph) * -0.22); transform: rotate(-14deg); z-index: 2; }
.screen {
  position: relative;
  height: 100%;
  border-radius: var(--r-screen);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 44%;
  height: calc(var(--ph) * 0.085);
  border-radius: 0 0 calc(var(--ph) * 0.06) calc(var(--ph) * 0.06);
  background: var(--c-graphite);
  color: var(--c-on-dark);
}
.screen-protocols { background: linear-gradient(180deg, var(--c-accent), var(--c-lavender)); color: var(--c-text); padding-top: calc(var(--ph) * 0.12); }
.proto-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--ph) * 0.048); margin: 0; padding: 0; list-style: none; }
.proto-list li {
  padding: calc(var(--ph) * 0.03) calc(var(--ph) * 0.07);
  border-radius: var(--r-pill);
  background: var(--c-veil);
  color: var(--c-on-dark);
  border: 1px solid var(--c-veil-line);
  font-size: calc(var(--ph) * 0.058);
  font-weight: var(--weight-strong);
  line-height: 1.3;
}
.screen-rules { background: linear-gradient(180deg, var(--c-panel), var(--c-aqua)); color: var(--c-text); padding: calc(var(--ph) * 0.12) calc(var(--ph) * 0.07) 0; align-items: stretch; }
.rule-head { margin: 0 0 calc(var(--ph) * 0.04) calc(var(--ph) * 0.02); font-family: var(--font-mono); font-size: calc(var(--ph) * 0.05); font-weight: 700; color: var(--c-aqua-deep); }
.rule-card { margin: 0 0 calc(var(--ph) * 0.045); padding: calc(var(--ph) * 0.052) calc(var(--ph) * 0.056); border-radius: var(--r-screen-card); background: var(--c-panel); color: var(--c-text); box-shadow: var(--shadow-chip); font-family: var(--font-mono); font-size: calc(var(--ph) * 0.047); line-height: 1.6; }
.rule-card span { display: block; }
.rule-card .kw { font-weight: 700; }
.rule-card .pol { color: var(--c-accent-dark); font-weight: 700; }
.status-strip { position: relative; z-index: 1; height: var(--strip-h); background: var(--c-bg); color: var(--c-muted); border-bottom: 1px solid var(--c-border); }
.status-list { height: 100%; display: flex; align-items: center; margin: 0; padding: 0 var(--gutter); list-style: none; font-family: var(--font-mono); font-size: 13px; white-space: nowrap; overflow-x: auto; }
.status-list li { display: inline-flex; align-items: center; gap: 9px; flex-shrink: 0; }
.status-list li + li::before { content: "/"; margin: 0 18px; color: var(--c-border-strong); }
.status-dot { width: 7px; height: 7px; }
.status-dot.is-aqua { background: var(--c-aqua-deep); }
.status-dot.is-lavender { background: var(--c-lavender); }
.status-dot.is-ok { background: var(--c-success); }
.next { background: var(--c-panel); color: var(--c-text); padding: 56px var(--gutter) 96px; }
.next-eyebrow { margin: 0 0 10px; font-family: var(--font-mono); font-size: 13px; color: var(--c-accent-dark); }
.next-title { margin: 0 0 12px; font-size: 30px; line-height: 1.2; }
.next-lead { max-width: 36em; margin: 0; color: var(--c-muted); }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.card, .panel { padding: 32px; border-radius: var(--r-card); background: var(--c-panel); color: var(--c-text); box-shadow: var(--shadow-float); }
.card > :first-child, .panel > :first-child { margin-top: 0; }
.card > :last-child, .panel > :last-child { margin-bottom: 0; }
.panel { border-radius: var(--r-section); }
.prose { min-width: 0; line-height: 1.9; }
.prose h2 { margin-top: 64px; margin-bottom: 24px; scroll-margin-top: 24px; }
.prose h3 { margin-top: 36px; margin-bottom: 16px; }
.prose p, .prose ul, .prose ol { margin-bottom: 24px; }
.prose a { color: var(--c-accent-dark); text-decoration: underline; text-underline-offset: 3px; }
.prose :not(pre) > code { background: var(--c-panel-2); color: var(--c-text); border-radius: var(--r-key); padding: 2px 5px; font-size: 0.9em; }
.prose li + li { margin-top: 8px; }
.site-footer { background: var(--c-panel); color: var(--c-text); border-top: 1px solid var(--c-border); padding-top: 64px; padding-bottom: 104px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr 0.8fr; gap: 36px; }
.footer-brand p { max-width: 29em; margin-top: 20px; color: var(--c-muted); }
.footer-heading { margin: 0 0 16px; font-size: 15px; }
.footer-links { margin: 0; padding: 0; list-style: none; }
.footer-links a { display: block; padding-block: 6px; color: var(--c-muted); font-size: 14px; overflow-wrap: anywhere; }
.footer-links a:hover { color: var(--c-accent-dark); }
.footer-links a[aria-current] { color: var(--c-accent-dark); font-weight: var(--weight-strong); }
.copyright { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; border-top: 1px solid var(--c-border); margin-top: 40px; padding-top: 24px; font-size: 13px; color: var(--c-muted); }
.copyright p { margin: 0; }
.legal-links { display: flex; flex-wrap: wrap; gap: 20px; }
.reveal { opacity: 1; transform: none; }
.reveal-ready .reveal:not(.shown) { opacity: 0; transform: translateY(18px); }
.reveal-ready .reveal { transition: opacity var(--time-reveal) var(--ease-out), transform var(--time-reveal) var(--ease-out); }
@media (max-width: 1280px) {
  .topbar-inner { gap: 16px; }
  .nav-link, .more > summary { padding-inline: 12px; }
}
@media (max-width: 1100px) {
  :root { --gutter: 40px; }
  .nav { display: none; }
  .header-tools { margin-left: auto; }
  .menu-toggle { display: inline-flex; }
  .mobile-drawer {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 3;
    padding: 16px var(--gutter) 24px;
    max-height: calc(100dvh - var(--nav-h));
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--c-panel);
    color: var(--c-text);
    border-bottom: 1px solid var(--c-border);
  }
  .mobile-drawer:not([hidden]) { display: block; }
  .mobile-drawer ul { list-style: none; margin: 0; padding: 0; }
  .mobile-drawer a { display: flex; align-items: center; width: 100%; min-height: 48px; padding: 12px 16px; border-radius: var(--r-item); }
  .mobile-drawer a:hover, .mobile-drawer a[aria-current] { background: var(--c-accent-tint); color: var(--c-accent-dark); }
  .drawer-heading { margin: 16px 16px 8px; font-size: 13px; color: var(--c-muted); }
  .menu-veil:not([hidden]) { display: block; position: fixed; inset: 0; z-index: 50; background: var(--c-overlay); color: var(--c-text); }
}
@media (max-width: 900px) {
  :root { --gutter: 20px; --ph: 164px; --section-space: 64px; }
  .hero { grid-template-columns: minmax(0, 1fr); height: auto; }
  .hero-copy { padding: 44px var(--gutter) 40px; }
  .hero-panel { height: 500px; }
  .phone-back { left: 46%; }
  .phone-front { left: 12%; }
  .hero-title { font-size: clamp(26px, 7.4vw, 30px); margin: 20px 0 26px; }
  .status-list { font-size: 12px; }
  .status-list li + li::before { margin-inline: 12px; }
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
  h1 { font-size: clamp(24px, 5vw, 30px); }
}
@media (max-width: 640px) {
  :root { --gutter: 20px; --section-space: 48px; }
  .topbar-inner { gap: 8px; }
  .topbar-inner > .brand { min-width: 0; flex-shrink: 1; }
  .topbar-inner > .brand > span { min-width: 0; overflow-wrap: anywhere; }
  .brand { gap: 8px; font-size: 14px; }
  .brand-mark, .brand-placeholder { width: 30px; height: 30px; }
  .lang-full { display: none; }
  .lang-short { display: inline; }
  .lang { padding-inline: 10px; gap: 5px; }
  .lang svg { display: none; }
  .header-tools { margin-left: auto; gap: 6px; }
  .menu-toggle { padding-inline: 10px; }
  .language-panel { right: 0; }
  .hero-facts { font-size: 15px; }
  .hero-title .keep { white-space: nowrap; }
  .device-row { gap: 10px 18px; margin-top: 24px; }
  .device-link { font-size: 13px; }
  .card-grid, .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .card, .panel { padding: 24px; }
  .tilt, .tilt-card, [data-tilt] { transform: none !important; }
  .next { padding-top: 56px; padding-bottom: 56px; }
  .next-title { font-size: 26px; }
  .btn { padding-inline: 18px; }
  pre { padding: 18px; }
}
@media (max-width: 359px) {
  :root { --gutter: 16px; --ph: 150px; }
  .brand { font-size: 12px; gap: 6px; }
  .brand-mark, .brand-placeholder { width: 26px; height: 26px; }
  .hero-panel { height: 450px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal-ready .reveal:not(.shown) { opacity: 1; transform: none; }
}