/* =========================================================================
   Branpont — shared design system (all pages)

   Palette "functionalism": 70% light neutral greys · 25% black for
   contrast · 5% functional orange, used ONLY on interactive points
   (CTAs, arrows, focus, active indicators, cursor feedback).

   Material: liquid glass — translucent layers with specular rims, soft
   floating depth, cursor-following highlights; the floating nav/sub-nav
   capsules re-tint over dark sections and, in desktop Chromium, refract the
   page behind them (SVG displacement filters injected by site.js).

   Every string exists twice (lang="zh-CN" / lang="en"); one rule below
   hides the inactive language.
   ========================================================================= */

/* ---------- Tokens ---------- */
:root {
  color-scheme: light;
  --base: #F3F3F5;
  --steel: #D5D6DA;
  --ink: #1C1C1C;
  --accent: #E8531E;          /* functional orange — interactive points only */
  --accent-hover: #F0622F;
  --accent-ink: #1C1C1C;      /* text on orange: 4.6:1 (white would be 3.7:1) */

  --bg: var(--base);
  --bg-soft: #E8E8EB;
  --fg: var(--ink);
  --fg-2: #2A2A2C;
  --muted: #5E5E63;           /* ≥ 4.9:1 on every light surface */
  --muted-2: #444448;
  --line: rgba(28, 28, 28, .1);
  --line-2: rgba(28, 28, 28, .17);
  --card: #FAFAFB;
  --link: var(--ink);
  --sheen: #8E8E93;

  /* liquid glass — light */
  --glass: linear-gradient(160deg, rgba(255, 255, 255, .74), rgba(255, 255, 255, .34));
  --glass-strong: linear-gradient(160deg, rgba(255, 255, 255, .9), rgba(255, 255, 255, .6));
  --glass-rim: inset 0 1px 0 rgba(255, 255, 255, .95), inset 0 0 0 1px rgba(255, 255, 255, .5), inset 0 -1px 0 rgba(28, 28, 28, .04);
  --glass-shadow: 0 1px 1px rgba(28, 28, 28, .04), 0 16px 36px -18px rgba(28, 28, 28, .26);
  --glass-lift: 0 2px 4px rgba(28, 28, 28, .05), 0 30px 60px -28px rgba(28, 28, 28, .36);
  --glass-blur: blur(22px) saturate(165%);
  --chip-bg: rgba(255, 255, 255, .56);
  --chip-ring: inset 0 0 0 1px rgba(255, 255, 255, .7), 0 1px 2px rgba(28, 28, 28, .06);
  --spot: rgba(255, 255, 255, .62);
  --spot-ring: rgba(255, 255, 255, 1);
  --glow: rgba(255, 255, 255, .62);
  --grad: linear-gradient(90deg, var(--fg), var(--accent));

  --r-sm: 10px;
  --r-md: 18px;
  --r-lg: 24px;
  --r-xl: 32px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --spring: cubic-bezier(.34, 1.4, .64, 1);
  --nav-h: 70px;
  --sub-h: 56px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue",
          "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", Arial, sans-serif;
  --mono: "SF Mono", ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;
}
.dark {
  color-scheme: dark;
  --bg: var(--ink);
  --bg-soft: #232325;
  --fg: #F5F5F7;
  --fg-2: #E5E5EA;
  --muted: #A1A1A6;           /* 6.6:1 on ink */
  --muted-2: #C7C7CC;
  --line: rgba(245, 245, 247, .1);
  --line-2: rgba(245, 245, 247, .18);
  --card: #262628;
  --link: #F5F5F7;
  --sheen: #FFFFFF;
  --glass: linear-gradient(160deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .03));
  --glass-strong: linear-gradient(160deg, rgba(255, 255, 255, .16), rgba(255, 255, 255, .06));
  --glass-rim: inset 0 1px 0 rgba(255, 255, 255, .16), inset 0 0 0 1px rgba(255, 255, 255, .07);
  --glass-shadow: 0 18px 40px -22px rgba(0, 0, 0, .8);
  --glass-lift: 0 30px 60px -28px rgba(0, 0, 0, .9);
  --chip-bg: rgba(255, 255, 255, .07);
  --chip-ring: inset 0 0 0 1px rgba(255, 255, 255, .07);
  --spot: rgba(255, 255, 255, .07);
  --spot-ring: rgba(255, 255, 255, .5);
  --glow: rgba(232, 83, 30, .16);
  background: radial-gradient(130% 90% at 50% -10%, #2E2E31, var(--ink) 58%);
  color: var(--fg);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--nav-h) + 12px); background: var(--base); }
:root:has(.subnav) { scroll-padding-top: calc(var(--nav-h) + var(--sub-h) + 12px); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  font-family: var(--font); font-size: 16px; line-height: 1.55; color: var(--fg); background: var(--bg);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
::selection { background: rgba(232, 83, 30, .22); }
@view-transition { navigation: auto; }

/* Bilingual: hide the inactive language. Anything that isn't exactly "en"
   (e.g. a browser translator rewriting <html lang>) falls back to Chinese. */
html[lang="en"] [lang="zh-CN"], html:not([lang="en"]) [lang="en"] { display: none !important; }

/* Icons (inline SVG sprite, <svg class="i"><use href="#i-…"/></svg>) */
.i { width: 22px; height: 22px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

.skip { position: absolute; left: 12px; top: -60px; z-index: 300; padding: 8px 14px; border-radius: 8px; background: var(--fg); color: var(--bg); }
.skip:focus { top: 12px; }

/* ---------- Layout ---------- */
.wrap { width: min(1180px, 100% - 40px); margin-inline: auto; }
.wrap-narrow { width: min(880px, 100% - 40px); margin-inline: auto; }
.section { position: relative; padding: clamp(88px, 11vw, 152px) 0; }
.section-tight { position: relative; padding: clamp(64px, 8vw, 104px) 0; }
.soft { background: linear-gradient(180deg, #EDEDEF, #E2E2E5); }
.center { text-align: center; }
.center .lead, .sec-head.center { margin-inline: auto; }
.center .actions, .actions.center { justify-content: center; }
.grid { display: grid; gap: 20px; }
.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.auto-grid { grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr)); }
@media (max-width: 1024px) { .cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 860px) { .cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .cols-2, .cols-3, .cols-4 { grid-template-columns: minmax(0, 1fr); } }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 96px); align-items: center; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.mt-s { margin-top: 24px; } .mt-m { margin-top: 40px; } .mt-l { margin-top: 64px; }

/* ---------- Type ---------- */
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 18px; font-size: 14px; font-weight: 600; letter-spacing: .01em; color: var(--muted); }
.pill {
  display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 14px; margin-bottom: 22px;
  border-radius: 999px; font-size: 13px; font-weight: 500; color: var(--fg-2);
  background: var(--glass-strong); box-shadow: var(--glass-rim), 0 6px 16px -8px rgba(28, 28, 28, .28);
}
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.display { font-size: clamp(40px, 7.2vw, 100px); line-height: 1.03; font-weight: 600; letter-spacing: -.04em; }
.h1 { font-size: clamp(38px, 6vw, 78px); line-height: 1.05; font-weight: 600; letter-spacing: -.035em; }
.h2 { font-size: clamp(32px, 4.4vw, 58px); line-height: 1.08; font-weight: 600; letter-spacing: -.03em; }
.h3 { font-size: clamp(22px, 2.2vw, 28px); line-height: 1.22; font-weight: 600; letter-spacing: -.02em; }
.display, .h1, .h2, .h3 { text-wrap: balance; }
html:not([lang="en"]) :is(.display, .h1, .h2, .h3) { letter-spacing: 0; line-height: 1.18; }
.lead { max-width: 680px; margin-top: 20px; font-size: clamp(18px, 1.6vw, 21px); line-height: 1.55; color: var(--muted); text-wrap: pretty; }
.sec-head { max-width: 820px; margin-bottom: clamp(40px, 5vw, 64px); }
.sec-row { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: clamp(36px, 4.5vw, 56px); }
.sec-row .sec-head { margin-bottom: 0; }
.grad-text { color: var(--fg); }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); }
.note { margin-top: 28px; font-size: 13px; color: var(--muted); }

/* Text that catches the cursor light like ink under a lamp (--x/--y via JS) */
[data-sheen] {
  background: radial-gradient(380px circle at var(--x, -999px) var(--y, -999px), var(--sheen), var(--fg) 56%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- Buttons & links ---------- */
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 0 22px; border-radius: 999px; overflow: hidden; white-space: nowrap;
  font-size: 15px; font-weight: 500;
  transition: background-color .25s, color .25s, box-shadow .3s, transform .45s var(--spring);
}
.btn:active { transform: scale(.96); }
.btn-primary { background: var(--fg); color: var(--bg); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .16), 0 12px 24px -14px rgba(28, 28, 28, .6); }
.btn-primary:hover { background: color-mix(in srgb, var(--fg) 86%, var(--bg)); }
.btn-primary::before { /* light sweep */
  content: ""; position: absolute; inset: 0; transform: translateX(-120%);
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, .28) 50%, transparent 70%);
  transition: transform .8s var(--ease);
}
.btn-primary:hover::before { transform: translateX(120%); }
/* the "operation point": an orange disc carrying the arrow */
.btn-primary.go { gap: 12px; padding-right: 8px; }
.btn-primary.go::after {
  width: 32px; height: 32px; border-radius: 50%; -webkit-mask: none; mask: none;
  background: var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3 8h10M9 4l4 4-4 4' fill='none' stroke='white' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 14px no-repeat;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .35);
  transition: transform .45s var(--spring);
}
.btn-ghost { color: var(--fg); background: var(--glass-strong); box-shadow: var(--glass-rim), 0 10px 22px -14px rgba(28, 28, 28, .32); -webkit-backdrop-filter: blur(14px) saturate(160%); backdrop-filter: blur(14px) saturate(160%); }
.btn-ghost:hover { box-shadow: var(--glass-rim), inset 0 0 0 1px var(--line-2), 0 14px 28px -14px rgba(28, 28, 28, .38); }
.btn-sm { height: 36px; padding: 0 16px; font-size: 13px; }
/* page-level CTAs in the bars are the orange operation points */
.btn.nav-cta, .subnav .btn, .btn-accent { background: var(--accent); color: var(--accent-ink); font-weight: 600; box-shadow: inset 0 1px 0 rgba(255, 255, 255, .35), 0 8px 18px -10px rgba(232, 83, 30, .75); }
.btn.nav-cta:hover, .subnav .btn:hover, .btn-accent:hover { background: var(--accent-hover); }
.btn.nav-cta::before, .subnav .btn::before { display: none; }
.link { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; color: var(--link); }
.link:hover { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 4px; }
.go::after {
  content: ""; width: 14px; height: 14px; flex-shrink: 0; background: var(--accent); transition: transform .3s var(--ease);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3 8h10M9 4l4 4-4 4' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3 8h10M9 4l4 4-4 4' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / contain no-repeat;
}
.go:hover::after, a:hover .go::after { transform: translateX(3px); }

/* ---------- Global nav: a floating liquid-glass capsule ---------- */
.nav { position: sticky; top: 0; z-index: 100; height: var(--nav-h); margin-bottom: calc(-1 * var(--nav-h)); pointer-events: none; }
.nav-bar, .m-menu { pointer-events: auto; }
.nav::after { /* dims the page while a flyout or the mobile menu is open */
  content: ""; position: fixed; inset: 0; z-index: -2; background: rgba(28, 28, 28, .16);
  opacity: 0; pointer-events: none; transition: opacity .3s;
}
.nav:has(.nav-item:hover .flyout, .nav-item:focus-within .flyout)::after, .menu-open .nav::after { opacity: 1; }
.nav .wrap.nav-bar { width: min(1200px, 100% - 24px); }
.nav-bar {
  --nav-fg: var(--fg); --nav-muted: #3C3C40;
  position: relative; display: flex; align-items: center; gap: 24px; height: 52px; margin-top: 10px; padding: 0 8px 0 22px;
  border-radius: 999px; color: var(--nav-fg); transition: color .35s;
}
.nav-bar::before { /* the glass itself (kept on a pseudo so it is not a backdrop root for the flyout) */
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit;
  background: linear-gradient(160deg, rgba(250, 250, 251, .82), rgba(236, 236, 239, .62));
  box-shadow: var(--glass-rim), 0 10px 30px -14px rgba(28, 28, 28, .28);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  transition: background .35s, box-shadow .35s;
}
.nav.scrolled .nav-bar::before { box-shadow: var(--glass-rim), 0 16px 40px -16px rgba(28, 28, 28, .36); }
.nav-dark .nav-bar { --nav-fg: #F5F5F7; --nav-muted: #C7C7CC; }
.nav-dark .nav-bar::before { background: linear-gradient(160deg, rgba(58, 58, 61, .62), rgba(28, 28, 28, .52)); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .16), inset 0 0 0 1px rgba(255, 255, 255, .08), 0 14px 34px -14px rgba(0, 0, 0, .6); }
.logo { display: inline-flex; align-items: center; gap: 9px; flex-shrink: 0; font-size: 19px; font-weight: 600; letter-spacing: -.02em; color: var(--nav-fg, var(--fg)); }
.foot .logo { color: var(--fg); }
.logo svg { width: 22px; height: 22px; }
.nav-menu { display: flex; align-items: stretch; height: 100%; margin-left: 10px; }
.nav-item { display: flex; align-items: stretch; }
.nav-link { display: flex; align-items: center; padding: 0 13px; font-size: 14px; color: var(--nav-muted); transition: color .2s; }
.nav-link:hover, .nav-item:hover > .nav-link, .nav-item:focus-within > .nav-link, .nav-link[aria-current="page"] { color: var(--nav-fg); }
.nav-link[aria-current="page"] { font-weight: 600; }
.nav-right { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.lang {
  height: 36px; min-width: 52px; padding: 0 13px; border-radius: 999px; font-size: 13px; font-weight: 500; color: inherit;
  background: rgba(255, 255, 255, .5); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .9), inset 0 0 0 1px rgba(28, 28, 28, .08);
  transition: background-color .2s, transform .45s var(--spring);
}
.lang:hover { background: rgba(255, 255, 255, .8); }
.lang:active { transform: scale(.94); }
.nav-dark .nav-bar .lang { background: rgba(255, 255, 255, .1); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .16), inset 0 0 0 1px rgba(255, 255, 255, .1); }
.foot .lang { background: var(--chip-bg); box-shadow: var(--chip-ring); }

.flyout {
  position: absolute; left: 0; right: 0; top: calc(100% + 10px); color: var(--fg); border-radius: 28px;
  background: linear-gradient(160deg, rgba(250, 250, 251, .9), rgba(240, 240, 242, .82));
  -webkit-backdrop-filter: blur(28px) saturate(170%); backdrop-filter: blur(28px) saturate(170%);
  box-shadow: var(--glass-rim), var(--glass-lift);
  opacity: 0; visibility: hidden; transform: translateY(-8px) scale(.985); transform-origin: top center; pointer-events: none;
  transition: opacity .25s var(--ease), transform .45s var(--spring), visibility 0s linear .45s;
}
.flyout::before { content: ""; position: absolute; left: 0; right: 0; top: -14px; height: 14px; } /* hover bridge across the gap */
.nav-item:hover .flyout, .nav-item:focus-within .flyout {
  opacity: 1; visibility: visible; transform: none; pointer-events: auto;
  transition: opacity .25s var(--ease) .06s, transform .45s var(--spring) .06s, visibility 0s;
}
.flyout .wrap { width: auto; }
.flyout-inner { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2.2fr); gap: 40px; padding: 30px 34px 34px; }
.flyout-intro .eyebrow { margin-bottom: 10px; }
.flyout-intro p:not([class]) { font-size: 14px; color: var(--muted); margin-top: 8px; }
.flyout-intro .link { margin-top: 16px; font-size: 14px; }
.flyout-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 4px 16px; align-content: start; }
.flyout-links a { display: flex; gap: 12px; padding: 12px; border-radius: 16px; transition: background-color .2s, box-shadow .2s; }
.flyout-links a:hover { background: rgba(255, 255, 255, .7); box-shadow: inset 0 1px 0 #fff, 0 6px 16px -10px rgba(28, 28, 28, .3); }
.flyout-links .i { width: 20px; height: 20px; margin-top: 2px; color: var(--fg); }
.flyout-links a:hover .i { color: var(--accent); }
.flyout-links b { display: block; font-size: 14px; font-weight: 600; }
.flyout-links small { display: block; margin-top: 2px; font-size: 12.5px; line-height: 1.45; color: var(--muted); }

.menu-btn { display: none; position: relative; width: 38px; height: 38px; border-radius: 999px; color: var(--nav-fg); background: rgba(255, 255, 255, .5); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .9), inset 0 0 0 1px rgba(28, 28, 28, .08); }
.nav-dark .menu-btn { background: rgba(255, 255, 255, .1); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .16); }
.menu-btn span { position: absolute; left: 11px; right: 11px; height: 1.5px; border-radius: 2px; background: currentColor; transition: transform .45s var(--spring), top .35s var(--ease); }
.menu-btn span:nth-child(1) { top: 15px; }
.menu-btn span:nth-child(2) { top: 22px; }
.menu-open .menu-btn span:nth-child(1) { top: 18.5px; transform: rotate(45deg); }
.menu-open .menu-btn span:nth-child(2) { top: 18.5px; transform: rotate(-45deg); }
.m-menu {
  position: fixed; top: calc(var(--nav-h) + 2px); left: 12px; right: 12px; max-height: calc(100dvh - var(--nav-h) - 16px);
  overflow-y: auto; padding: 10px 22px 22px; color: var(--fg); border-radius: 28px;
  background: linear-gradient(160deg, rgba(250, 250, 251, .94), rgba(240, 240, 242, .88));
  -webkit-backdrop-filter: blur(28px) saturate(170%); backdrop-filter: blur(28px) saturate(170%);
  box-shadow: var(--glass-rim), var(--glass-lift);
  opacity: 0; visibility: hidden; transform: translateY(-10px) scale(.98); transform-origin: top center;
  transition: opacity .3s var(--ease), transform .45s var(--spring), visibility 0s linear .45s;
}
.menu-open { overflow: hidden; }
.menu-open .m-menu { opacity: 1; visibility: visible; transform: none; transition: opacity .3s var(--ease), transform .45s var(--spring), visibility 0s; }
.m-menu > a { display: block; padding: 14px 0 6px; font-size: 24px; font-weight: 600; letter-spacing: -.02em; }
.m-sub { display: grid; gap: 2px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.m-sub a { padding: 7px 0; font-size: 15px; color: var(--muted-2); }
.m-menu .btn { margin-top: 24px; width: 100%; }
@media (max-width: 900px) {
  .nav-menu { display: none; }
  .menu-btn { display: block; }
}
@media (max-width: 480px) { .nav-cta { display: none; } }
@media (min-width: 721px) { :root:has(.subnav) .nav-cta { display: none; } } /* the local nav carries the page CTA */

/* ---------- Local (product) nav: a second glass capsule ---------- */
.subnav { position: sticky; top: var(--nav-h); z-index: 90; height: var(--sub-h); margin-bottom: calc(-1 * var(--sub-h)); pointer-events: none; }
.subnav .wrap.subnav-bar { width: min(1200px, 100% - 24px); }
.subnav-bar {
  --nav-fg: var(--fg); --nav-muted: var(--muted-2);
  position: relative; display: flex; align-items: center; gap: 24px; height: 46px; margin-top: 2px; padding: 0 6px 0 20px;
  border-radius: 999px; color: var(--nav-fg); pointer-events: auto; transition: color .35s;
}
.subnav-bar::before {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit;
  background: linear-gradient(160deg, rgba(250, 250, 251, .78), rgba(236, 236, 239, .58));
  box-shadow: var(--glass-rim), 0 10px 26px -14px rgba(28, 28, 28, .26);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  transition: background .35s, box-shadow .35s;
}
.sub-dark .subnav-bar { --nav-fg: #F5F5F7; --nav-muted: #C7C7CC; }
.sub-dark .subnav-bar::before { background: linear-gradient(160deg, rgba(58, 58, 61, .6), rgba(28, 28, 28, .5)); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .14), inset 0 0 0 1px rgba(255, 255, 255, .07), 0 12px 30px -14px rgba(0, 0, 0, .6); }
.subnav-title { flex-shrink: 0; font-size: 16px; font-weight: 600; letter-spacing: -.01em; }
.subnav-links { position: relative; display: flex; gap: 22px; margin-left: auto; overflow-x: auto; scrollbar-width: none; font-size: 13px; }
.subnav-links::-webkit-scrollbar { display: none; }
.subnav-links { padding: 5px 0; } /* room for the 3px-offset focus ring inside the scroll box */
@media (min-width: 721px) { .subnav-links { padding-inline: 5px; } } /* side room only where the links are right-aligned, so phones keep the gutter */
.subnav-links a { position: relative; flex-shrink: 0; padding: 6px 0; color: var(--nav-muted); transition: color .2s; }
.subnav-links a:hover, .subnav-links a[aria-current="true"] { color: var(--nav-fg); }
.subnav-links a[aria-current="true"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; border-radius: 2px; background: var(--accent); }
.subnav .btn { flex-shrink: 0; }
@media (max-width: 720px) {
  .subnav-title, .subnav .btn { display: none; }
  .subnav-bar { padding: 0 14px; }
  .subnav-links { margin-left: 0; mask-image: linear-gradient(90deg, #000 85%, transparent); }
}

/* ---------- Heroes (they run underneath the floating glass bars) ---------- */
.hero {
  position: relative; isolation: isolate; overflow: hidden; text-align: center;
  padding: calc(var(--nav-h) + clamp(72px, 11vw, 150px)) 0 clamp(88px, 11vw, 150px);
  background: radial-gradient(90% 60% at 50% 18%, #FFFFFF, transparent 70%), linear-gradient(180deg, var(--base), #E4E4E7);
}
.hero .lead { margin-inline: auto; color: var(--muted-2); }
.hero::after, .page-hero:not(.dark)::after { content: ""; position: absolute; inset: auto 0 0; height: 26%; z-index: -1; background: linear-gradient(transparent, var(--bg)); }
.page-hero { position: relative; isolation: isolate; overflow: hidden; padding: calc(var(--nav-h) + var(--sub-h) + clamp(48px, 7vw, 96px)) 0 clamp(72px, 9vw, 120px); }
.page-hero:not(.dark) { background: radial-gradient(90% 60% at 30% 20%, #FFFFFF, transparent 70%), linear-gradient(180deg, var(--base), #E4E4E7); }
.page-hero .lead, .page-hero:not(.dark) .note { color: var(--muted-2); }
.field { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; pointer-events: none; }
.aura {
  position: absolute; inset: -25% -10% 0; z-index: -2; filter: blur(80px); opacity: .7; pointer-events: none;
  transform: translate3d(calc((var(--px, .5) - .5) * 70px), calc((var(--py, .5) - .5) * 50px), 0);
  transition: transform 1.8s var(--ease-out);
}
.aura i { position: absolute; width: 46vw; height: 46vw; max-width: 640px; max-height: 640px; border-radius: 50%; animation: drift 18s ease-in-out infinite alternate; }
.aura i:nth-child(1) { background: #FFFFFF; left: 4%; top: 10%; }
.aura i:nth-child(2) { background: #C8C8CD; right: 4%; top: 0; animation-delay: -6s; }
.aura i:nth-child(3) { background: var(--accent); left: 40%; top: 46%; width: 26vw; height: 26vw; opacity: .16; animation-delay: -12s; }
.dark .aura { opacity: .5; }
.dark .aura i:nth-child(1) { background: #4A4A4E; }
.dark .aura i:nth-child(2) { background: #2E2E31; }
.dark .aura i:nth-child(3) { background: var(--accent); opacity: .18; }
@keyframes drift { to { transform: translate3d(7%, 9%, 0) scale(1.15); } }

/* ---------- Cards: liquid glass ---------- */
.card {
  position: relative; isolation: isolate; padding: clamp(24px, 2.4vw, 32px);
  border-radius: var(--r-lg); background: var(--glass); box-shadow: var(--glass-rim), var(--glass-shadow);
  transition: transform .55s var(--spring), box-shadow .5s var(--ease), background-color .3s;
}
.card h3 { font-size: 19px; font-weight: 600; line-height: 1.3; letter-spacing: -.015em; }
.card > p, .card .body > p { margin-top: 8px; font-size: 15px; color: var(--muted); }
.card.flex { display: flex; flex-direction: column; }
.card.flex .link, .card.flex .card-foot { margin-top: auto; padding-top: 20px; }
a.card { display: block; }
@media (hover: hover) {
  .lift:hover { transform: translateY(-5px); box-shadow: var(--glass-rim), var(--glass-lift); }
}
.ico {
  display: grid; place-items: center; width: 46px; height: 46px; margin-bottom: 20px; border-radius: 14px;
  color: var(--fg); background: var(--glass-strong); box-shadow: var(--glass-rim), 0 8px 18px -10px rgba(28, 28, 28, .3);
}
.ico.v { color: #F5F5F7; background: linear-gradient(160deg, #3A3A3D, var(--ink)); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .16), 0 10px 20px -10px rgba(28, 28, 28, .55); }
.dark .ico, .dark .ico.v { color: var(--fg); background: rgba(255, 255, 255, .08); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .14), inset 0 0 0 1px rgba(255, 255, 255, .06); }
.lift:hover .ico { color: var(--accent); }
.dark .lift:hover .ico { color: var(--accent); }

/* Cursor light: a specular highlight and a rim glint glide over the glass.
   Hovering a [data-spot-group] lights every card in it (vars set per card by JS). */
[data-spot]::before, [data-spot]::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .5s; }
[data-spot]::before {
  z-index: 2; padding: 1px;
  background: radial-gradient(300px circle at var(--x, -999px) var(--y, -999px), var(--spot-ring), transparent 62%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
}
[data-spot]::after { z-index: -1; background: radial-gradient(420px circle at var(--x, -999px) var(--y, -999px), var(--spot), transparent 58%); }
[data-spot-group]:hover [data-spot]::before, [data-spot]:hover::before, [data-spot]:hover::after { opacity: 1; }

/* Large soft light that follows the cursor across a section */
[data-glow] { position: relative; isolation: isolate; overflow: hidden; }
[data-glow]::before {
  content: ""; position: absolute; left: 0; top: 0; z-index: -1; width: 1000px; height: 1000px; margin: -500px 0 0 -500px; border-radius: 50%;
  background: radial-gradient(closest-side, var(--glow), transparent);
  transform: translate3d(var(--x, -2000px), var(--y, -2000px), 0); opacity: 0; transition: opacity .8s; pointer-events: none; will-change: transform;
}
[data-glow]:hover::before { opacity: 1; }

/* ---------- Lists, chips, badges ---------- */
.checks { display: grid; gap: 9px; margin-top: 18px; font-size: 14px; color: var(--fg-2); }
.checks li { position: relative; padding-left: 24px; }
.checks li::before {
  content: ""; position: absolute; left: 0; top: .28em; width: 15px; height: 15px; background: var(--fg);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='m3.5 8.5 3 3 6-7' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='m3.5 8.5 3 3 6-7' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / contain no-repeat;
}
.card > .checks:first-child { margin-top: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { display: inline-flex; align-items: center; max-width: 100%; min-height: 28px; padding: 4px 11px; border-radius: 14px; font-size: 12.5px; line-height: 1.35; color: var(--fg-2); background: var(--chip-bg); box-shadow: var(--chip-ring); }
.chip.go { gap: 6px; }
a.chip { transition: background-color .2s, transform .45s var(--spring); }
a.chip:hover { background: color-mix(in srgb, var(--fg) 8%, transparent); }
.badges { display: flex; flex-wrap: wrap; gap: 10px; }
.badge { display: inline-flex; align-items: center; gap: 9px; min-height: 42px; padding: 6px 16px; border-radius: 999px; font-size: 14px; font-weight: 500; background: var(--glass); box-shadow: var(--glass-rim), 0 6px 16px -10px rgba(28, 28, 28, .26); }
.badge .i { width: 18px; height: 18px; color: var(--fg); }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; margin-top: 18px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- Stats (numbers count up when revealed) ---------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.stat { padding: 28px 20px 0 0; }
.stat b { display: block; font-size: clamp(34px, 4.2vw, 54px); font-weight: 600; line-height: 1.05; letter-spacing: -.035em; font-variant-numeric: tabular-nums; }
.stat span { display: block; margin-top: 8px; font-size: 14px; color: var(--muted); }
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 12px; } }

/* ---------- Business-line cards ---------- */
.biz {
  position: relative; isolation: isolate; display: flex; flex-direction: column; min-height: 600px; overflow: hidden;
  padding: clamp(28px, 3.4vw, 46px); border-radius: var(--r-xl); color: var(--fg);
}
.biz-infra, .biz-ai.dark {
  background: radial-gradient(120% 80% at 100% 0%, rgba(232, 83, 30, .16), transparent 55%), linear-gradient(160deg, #3A3A3D 0%, var(--ink) 58%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .16), inset 0 0 0 1px rgba(255, 255, 255, .06), 0 34px 70px -34px rgba(28, 28, 28, .7);
}
.biz-ai.dark { background: radial-gradient(120% 80% at 0% 100%, rgba(232, 83, 30, .14), transparent 55%), linear-gradient(200deg, #3A3A3D 0%, var(--ink) 58%); }
.biz-ai:not(.dark) {
  background: radial-gradient(110% 80% at 100% 0%, rgba(255, 255, 255, .95), transparent 60%), linear-gradient(160deg, rgba(255, 255, 255, .78), rgba(255, 255, 255, .4));
  box-shadow: var(--glass-rim), var(--glass-lift);
}
.biz .tag { font-size: 13px; font-weight: 600; color: var(--muted); }
.biz .h2 { margin-top: 14px; font-size: clamp(30px, 3.4vw, 44px); }
.biz > p { max-width: 460px; margin-top: 14px; color: var(--muted-2); }
.biz-list { margin-top: auto; padding-top: 40px; border-top: 0; }
.biz-list a { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 0; border-top: 1px solid var(--line); font-size: 15px; transition: padding .45s var(--spring), color .2s; }
.biz-list a small { margin-left: 10px; font-size: 12.5px; color: var(--muted); }
.biz-list a:hover { padding-left: 6px; }
.biz-art { position: absolute; right: -14%; top: -18%; z-index: -1; width: 78%; aspect-ratio: 1; pointer-events: none; }
.biz-infra .biz-art {
  background: radial-gradient(circle, rgba(245, 245, 247, .7) 0 1.3px, transparent 1.7px) 0 0 / 18px 18px;
  -webkit-mask: radial-gradient(closest-side, #000 15%, transparent 78%); mask: radial-gradient(closest-side, #000 15%, transparent 78%);
  animation: led-flow 5s linear infinite;
}
@keyframes led-flow { to { background-position: 0 -36px; } }
.biz-ai .biz-art { border-radius: 50%; background: repeating-radial-gradient(circle, transparent 0 30px, color-mix(in srgb, var(--fg) 12%, transparent) 31px 32px);
  -webkit-mask: radial-gradient(closest-side, #000 25%, transparent 80%); mask: radial-gradient(closest-side, #000 25%, transparent 80%); }
.biz-ai .biz-art::before, .biz-ai .biz-art::after { content: ""; position: absolute; border-radius: 50%; border: 1px dashed color-mix(in srgb, var(--fg) 26%, transparent); animation: spin 40s linear infinite; }
.biz-ai .biz-art::before { inset: 22%; }
.biz-ai .biz-art::after { inset: 36%; animation-duration: 26s; animation-direction: reverse; border-style: solid; border-color: var(--accent) transparent transparent; }
@keyframes spin { to { transform: rotate(1turn); } }

/* ---------- Full-stack diagram ---------- */
.stack { position: relative; display: grid; gap: 10px; padding-left: 30px; }
.stack::before { /* rail with a pulse travelling upward */
  content: ""; position: absolute; left: 9px; top: 8px; bottom: 8px; width: 2px; border-radius: 2px;
  background: linear-gradient(to top, transparent 0 42%, var(--fg) 50%, transparent 58% 100%) 0 0 / 100% 300% no-repeat, var(--line-2);
  animation: rail 3.6s linear infinite;
}
@keyframes rail { from { background-position: 0 0, 0 0; } to { background-position: 0 100%, 0 0; } }
.layer {
  position: relative; isolation: isolate; display: grid; grid-template-columns: 150px minmax(0, 1fr); align-items: center; gap: 20px;
  padding: 18px 22px; border-radius: var(--r-md); background: var(--glass); box-shadow: var(--glass-rim), var(--glass-shadow);
}
.layer .node { position: absolute; left: -26px; top: 50%; width: 10px; height: 10px; margin-top: -5px; border-radius: 50%; background: var(--bg); box-shadow: 0 0 0 2px var(--line-2); transition: box-shadow .3s, background-color .3s; }
.layer:hover .node { background: var(--accent); box-shadow: 0 0 0 4px rgba(232, 83, 30, .22); }
.layer b { display: block; font-size: 16px; font-weight: 600; }
.layer small { display: block; margin-top: 2px; font-family: var(--mono); font-size: 11.5px; color: var(--muted); }
@media (max-width: 640px) { .layer { grid-template-columns: 1fr; gap: 10px; } }

/* ---------- Process timeline ---------- */
.steps { position: relative; display: grid; grid-template-columns: repeat(var(--n, 5), minmax(0, 1fr)); gap: 20px; counter-reset: step; }
.steps::before, .steps::after { content: ""; position: absolute; left: 20px; right: 20px; top: 21px; height: 2px; border-radius: 2px; background: var(--line); }
.steps::after { background: var(--grad); transform-origin: left; }
@supports (animation-timeline: view()) {
  .steps::after { animation: fill-x linear both; animation-timeline: view(); animation-range: entry 25% cover 55%; }
}
@keyframes fill-x { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes fill-y { from { transform: scaleY(0); } to { transform: scaleY(1); } }
.step { position: relative; padding-top: 60px; }
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: 0; z-index: 1; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%;
  font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums; background: var(--card);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .9), inset 0 0 0 1px var(--line), 0 8px 18px -10px rgba(28, 28, 28, .35);
}
.dark .step::before { box-shadow: inset 0 1px 0 rgba(255, 255, 255, .12), inset 0 0 0 1px var(--line), 0 10px 20px -10px rgba(0, 0, 0, .7); }
.step h3 { font-size: 19px; font-weight: 600; letter-spacing: -.01em; }
.step .dur { display: inline-block; margin-top: 6px; font-family: var(--mono); font-size: 12px; color: var(--muted); }
.step p { margin-top: 10px; font-size: 14px; color: var(--muted); }
.step .checks { font-size: 13px; }
@media (max-width: 900px) {
  .steps { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .steps::before, .steps::after { left: 21px; right: auto; top: 22px; bottom: 22px; width: 2px; height: auto; transform-origin: top; }
  @supports (animation-timeline: view()) { .steps::after { animation-name: fill-y; animation-range: entry 10% cover 70%; } }
  .step { padding: 0 0 0 66px; }
}

/* ---------- Filter chips (Kimi-style, glass track + liquid indicator) ---------- */
.filters {
  position: relative; display: flex; gap: 2px; width: fit-content; max-width: 100%; padding: 5px; overflow-x: auto; scrollbar-width: none;
  border-radius: 999px; background: rgba(28, 28, 28, .06); box-shadow: inset 0 1px 2px rgba(28, 28, 28, .1), inset 0 0 0 1px rgba(255, 255, 255, .35);
}
.filters::-webkit-scrollbar { display: none; }
.filters button { position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 7px; flex-shrink: 0; height: 38px; padding: 0 16px; border-radius: 999px; font-size: 14px; color: var(--muted-2); transition: color .25s; }
.filters button .i { width: 16px; height: 16px; }
@media (max-width: 1180px) { .filters:has(button:nth-of-type(8)) .i { display: none; } } /* 8+ chips only fit without icons below this width */
.filters button:hover, .filters button[aria-pressed="true"] { color: var(--fg); }
.filters button[aria-pressed="true"] .i { color: var(--accent); }
.filters .ink { position: absolute; z-index: 0; left: 0; top: 5px; bottom: 5px; width: 0; border-radius: 999px; background: var(--glass-strong); box-shadow: var(--glass-rim), 0 6px 14px -6px rgba(28, 28, 28, .28); transition: transform .55s var(--spring), width .55s var(--spring); }
.center .filters { margin-inline: auto; }
.pop { animation: pop .55s var(--spring) both; }
@keyframes pop { from { opacity: 0; transform: translateY(12px) scale(.97); } }

/* ---------- Use-case cards ---------- */
.uc { display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.uc-prev { position: relative; display: flex; flex-direction: column; justify-content: flex-end; gap: 10px; min-height: 196px; padding: 52px 18px 18px; background: var(--uc, linear-gradient(135deg, #E9E5DD, #DCD8CF)); }
.uc-tag { position: absolute; left: 16px; top: 16px; padding: 4px 9px; border-radius: 999px; font-family: var(--mono); font-size: 11px; color: #F5F5F7; background: rgba(28, 28, 28, .82); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .14); }
.uc-q { align-self: flex-end; max-width: 88%; padding: 9px 13px; border-radius: 16px 16px 4px 16px; font-size: 13px; line-height: 1.45; color: #F5F5F7; background: var(--ink); box-shadow: 0 8px 18px -10px rgba(28, 28, 28, .5); }
.uc-a { align-self: flex-start; display: grid; gap: 7px; width: 82%; padding: 12px 14px; border-radius: 16px 16px 16px 4px; background: rgba(255, 255, 255, .78); box-shadow: inset 0 1px 0 #fff, 0 6px 16px -8px rgba(28, 28, 28, .22); }
.uc-a i { display: block; height: 6px; border-radius: 3px; background: #E2E2E6; }
.uc-a i:nth-child(2) { width: 86%; }
.uc-a i:nth-child(3) { width: 58%; background: #C6C6CC; }
.uc-body { display: flex; flex-direction: column; flex: 1; padding: 22px 24px 26px; }
.uc h3 { font-size: 18px; }
.uc-body > p { margin-top: 8px; font-size: 14px; color: var(--muted); }
.uc .chips { margin-top: auto; padding-top: 16px; }
.uc .chip { min-height: 24px; padding-block: 3px; font-size: 12px; }

/* ---------- Spec table ---------- */
.spec { width: 100%; border-collapse: collapse; font-size: 15px; }
.spec th, .spec td { padding: 16px 20px 16px 0; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.spec th { width: 30%; font-weight: 600; }
.spec td { color: var(--muted-2); }
.spec .grp th { padding-top: 40px; font-size: 13px; font-weight: 600; color: var(--muted); border-bottom-color: var(--line-2); }
.spec tr:first-child.grp th { padding-top: 0; }
@media (max-width: 640px) {
  .spec, .spec tbody, .spec tr, .spec th, .spec td { display: block; width: auto; }
  .spec tr { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .spec th, .spec td { padding: 0; border: 0; }
  .spec td { margin-top: 4px; }
  .spec .grp { padding-top: 32px; border-bottom-color: var(--line-2); }
}

/* ---------- Hardware cards ---------- */
.hw .vendor { font-size: 12px; font-weight: 600; letter-spacing: .04em; color: var(--muted); }
.hw .model { margin: 8px 0 4px; font-size: 28px; font-weight: 600; letter-spacing: -.02em; }
.hw .fit { font-size: 13px; color: var(--muted); }

/* ---------- Plans / engagement models ---------- */
.plan { display: flex; flex-direction: column; }
.plan .h3 { margin-top: 4px; }
.plan .price { margin-top: 14px; font-size: 14px; color: var(--muted); }
.plan .checks { padding-top: 18px; border-top: 1px solid var(--line); }
.plan .btn { margin-top: auto; align-self: flex-start; }
.plan .checks { margin-bottom: 28px; }
.plan.featured { box-shadow: var(--glass-rim), inset 0 0 0 1.5px var(--fg), var(--glass-lift); }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 22px 0; font-size: 18px; font-weight: 500; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; width: 14px; height: 14px; flex-shrink: 0; background: currentColor; transition: transform .45s var(--spring), background-color .2s;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 2v12M2 8h12' stroke='black' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E") center / contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 2v12M2 8h12' stroke='black' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E") center / contain no-repeat;
}
.faq summary:hover::after { background: var(--accent); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .ans { max-width: 780px; padding: 0 0 24px; color: var(--muted); }
@supports (interpolate-size: allow-keywords) {
  .faq { interpolate-size: allow-keywords; }
  .faq details::details-content { height: 0; overflow: clip; transition: height .4s var(--ease), content-visibility .4s allow-discrete; }
  .faq details[open]::details-content { height: auto; }
}

/* ---------- Marquee ---------- */
.marquee { overflow: hidden; padding-block: 4px 12px; -webkit-mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee + .marquee { margin-top: 2px; }
.marquee-track { display: flex; gap: 12px; width: max-content; }
.js .marquee-track { animation: marquee var(--dur, 46s) linear infinite; }
.marquee.rev .marquee-track { animation-direction: reverse; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track > * { display: inline-flex; align-items: center; height: 46px; padding: 0 20px; border-radius: 999px; font-size: 15px; white-space: nowrap; color: var(--fg-2); background: var(--glass); box-shadow: var(--glass-rim), 0 8px 18px -12px rgba(28, 28, 28, .3); }
@keyframes marquee { to { transform: translateX(calc(-50% - 6px)); } }

/* ---------- Chat demo (agent with tools + citations), glass window ---------- */
.chat {
  overflow: hidden; border-radius: 28px; text-align: left; color: var(--ink);
  background: linear-gradient(160deg, rgba(255, 255, 255, .82), rgba(255, 255, 255, .5));
  -webkit-backdrop-filter: blur(20px) saturate(160%); backdrop-filter: blur(20px) saturate(160%);
  box-shadow: var(--glass-rim), 0 40px 80px -40px rgba(28, 28, 28, .45);
}
.chat-top { display: flex; align-items: center; gap: 7px; height: 46px; padding: 0 18px; border-bottom: 1px solid rgba(28, 28, 28, .07); font-size: 12.5px; color: var(--muted); }
.chat-top i { width: 10px; height: 10px; border-radius: 50%; background: #D1D1D6; }
.chat-top i:first-child { background: var(--accent); }
.chat-top span { margin-left: 8px; }
.chat-body { display: grid; align-content: start; gap: 12px; min-height: 470px; padding: 20px; font-size: 14px; }
.msg-u { justify-self: end; max-width: 86%; padding: 10px 14px; border-radius: 18px 18px 4px 18px; line-height: 1.5; color: #F5F5F7; background: var(--ink); box-shadow: 0 10px 20px -12px rgba(28, 28, 28, .55); }
.msg-tool { display: flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 12px; color: var(--muted); }
.msg-tool .st { width: 14px; height: 14px; border-radius: 50%; border: 2px solid rgba(28, 28, 28, .12); border-top-color: var(--accent); animation: spin .8s linear infinite; }
.msg-tool.done .st { border: 0; animation: none; background: var(--ink);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='8' cy='8' r='8'/%3E%3C/svg%3E"); }
.msg-a { max-width: 94%; padding: 12px 14px; border-radius: 18px 18px 18px 4px; line-height: 1.65; background: rgba(255, 255, 255, .78); box-shadow: inset 0 1px 0 #fff, 0 8px 18px -10px rgba(28, 28, 28, .22); }
.msg-a .cite { display: inline-grid; place-items: center; min-width: 18px; height: 18px; margin: 0 2px; padding: 0 4px; border-radius: 6px; font-size: 11px; font-weight: 700; vertical-align: 1px; color: var(--accent-ink); background: var(--accent); }
.msg-src { display: flex; flex-wrap: wrap; gap: 6px; }
.msg-src span { padding: 4px 10px; border-radius: 999px; font-size: 12px; color: var(--muted); background: rgba(255, 255, 255, .6); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .8), 0 1px 2px rgba(28, 28, 28, .06); }
.caret { display: inline-block; width: 2px; height: 1.05em; margin-left: 1px; vertical-align: -3px; background: var(--ink); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Hero console (home): a glass dashboard, after the reference UI ---------- */
.console { position: relative; display: grid; grid-template-columns: 1fr 1.45fr 1fr; gap: 22px; align-items: center; max-width: 1060px; margin: clamp(56px, 7vw, 88px) auto 0; text-align: left; }
.con-card {
  position: relative; isolation: isolate; padding: 22px; border-radius: 28px;
  background: var(--glass); box-shadow: var(--glass-rim), var(--glass-lift);
  -webkit-backdrop-filter: blur(18px) saturate(160%); backdrop-filter: blur(18px) saturate(160%);
  animation: con-float 9s ease-in-out infinite alternate;
}
.con-card:nth-child(1) { animation-delay: -3s; }
.con-card:nth-child(3) { animation-delay: -6s; }
@keyframes con-float { from { transform: translateY(-6px); } to { transform: translateY(6px); } }
.con-dark { background: linear-gradient(160deg, #3A3A3D, var(--ink) 70%); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .16), inset 0 0 0 1px rgba(255, 255, 255, .06), 0 34px 70px -32px rgba(28, 28, 28, .7); }
.con-main { min-height: 340px; padding: 20px; background: var(--glass-strong); }
.con-label { display: flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600; color: var(--muted); }
.con-label::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: live 2.4s var(--ease-out) infinite; }
.con-big { margin-top: 16px; font-size: 46px; font-weight: 600; line-height: 1; letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.con-big small { margin-left: 2px; font-size: 20px; color: var(--muted); }
.con-sub { margin-top: 8px; font-size: 13px; color: var(--muted); }
.con-bars { display: flex; align-items: flex-end; gap: 5px; height: 70px; margin-top: 20px; }
.con-bars i { flex: 1; height: calc(var(--h) * 100%); border-radius: 3px; background: rgba(245, 245, 247, .2); }
.con-bars i.on { background: var(--accent); box-shadow: 0 0 14px rgba(232, 83, 30, .55); }
.con-chip { display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 13px 0 10px; border-radius: 999px; font-size: 12.5px; font-weight: 600; color: var(--accent-ink); background: var(--accent); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .35), 0 8px 16px -8px rgba(232, 83, 30, .7); }
.con-chip .i { width: 14px; height: 14px; }
.con-msg-u { width: fit-content; max-width: 86%; margin: 14px 0 0 auto; padding: 10px 14px; border-radius: 18px 18px 4px 18px; font-size: 13.5px; color: #F5F5F7; background: var(--ink); }
.con-msg-a { max-width: 94%; margin-top: 10px; padding: 12px 14px; border-radius: 18px 18px 18px 4px; font-size: 13.5px; line-height: 1.55; background: rgba(255, 255, 255, .8); box-shadow: inset 0 1px 0 #fff, 0 8px 18px -10px rgba(28, 28, 28, .22); }
.con-kpis { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 12px; }
.con-kpi { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 10px 12px; border-radius: 16px; background: rgba(255, 255, 255, .62); box-shadow: inset 0 1px 0 #fff, 0 4px 10px -6px rgba(28, 28, 28, .18); }
.con-kpi b { display: block; font-size: 16px; font-weight: 600; font-variant-numeric: tabular-nums; }
.con-kpi small { display: block; font-size: 11.5px; color: var(--muted); }
.con-ring { width: 34px; height: 34px; flex-shrink: 0; transform: rotate(-90deg); }
.con-ring circle { fill: none; stroke: rgba(28, 28, 28, .1); stroke-width: 4; }
.con-ring .on { stroke: var(--accent); stroke-linecap: round; stroke-dasharray: var(--p) 100; }
.con-input { display: flex; align-items: center; justify-content: space-between; height: 46px; margin-top: 14px; padding: 0 6px 0 16px; border-radius: 999px; font-size: 13px; color: var(--muted); background: rgba(255, 255, 255, .82); box-shadow: inset 0 1px 0 #fff, 0 8px 18px -10px rgba(28, 28, 28, .28); }
.con-send { width: 34px; height: 34px; border-radius: 50%; background: var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 13V3M4 7l4-4 4 4' fill='none' stroke='white' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 14px no-repeat; box-shadow: inset 0 1px 0 rgba(255, 255, 255, .35); }
.con-spark { width: 100%; height: 58px; margin-top: 16px; overflow: visible; }
.con-spark path { fill: none; stroke: var(--ink); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.con-spark circle { fill: var(--accent); stroke: #fff; stroke-width: 2; }
.con-note { margin-top: 20px; font-size: 12px; color: var(--muted); }
@media (max-width: 960px) { .console { grid-template-columns: 1.2fr 1fr; max-width: 680px; } .con-side { display: none; } }
@media (max-width: 640px) { .console { grid-template-columns: minmax(0, 1fr); max-width: 420px; } .con-dark { display: none; } }

/* ---------- Visual panels ---------- */
.panel { position: relative; overflow: hidden; border-radius: var(--r-xl); }
.panel-rack {
  aspect-ratio: 1;
  background: radial-gradient(80% 60% at 70% 12%, rgba(232, 83, 30, .2), transparent 70%), linear-gradient(160deg, #3A3A3D, #141416);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .14), inset 0 0 0 1px rgba(255, 255, 255, .05), 0 40px 80px -40px rgba(0, 0, 0, .7);
}
.panel-rack::before {
  content: ""; position: absolute; inset: 14% 24%; border-radius: 16px; box-shadow: inset 0 1px 0 rgba(255, 255, 255, .12), 0 0 0 1px rgba(255, 255, 255, .08), 0 40px 80px -20px rgba(0, 0, 0, .65);
  background: repeating-linear-gradient(to bottom, transparent 0 1.5%, rgba(245, 245, 247, .1) 1.5% 8.5%, transparent 8.5% 10%) 12px 12px / calc(100% - 24px) calc(100% - 24px) no-repeat, linear-gradient(160deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .01));
}
.panel-rack::after {
  content: ""; position: absolute; left: calc(24% + 24px); top: calc(14% + 12px); bottom: calc(14% + 12px); width: 4px;
  background: repeating-linear-gradient(to bottom, transparent 0 calc(25% - 2px), #E8531E calc(25% - 2px) calc(25% + 2px), transparent calc(25% + 2px) 30%),
              repeating-linear-gradient(to bottom, transparent 0 calc(5% - 2px), #F5F5F7 calc(5% - 2px) calc(5% + 2px), transparent calc(5% + 2px) 10%);
  animation: led-blink 2.4s steps(2) infinite;
}
@keyframes led-blink { 50% { opacity: .35; } }

/* ---------- Closing CTA ---------- */
.cta { position: relative; isolation: isolate; overflow: hidden; padding: clamp(104px, 14vw, 180px) 0; text-align: center; }
.cta .lead { margin-inline: auto; }
.cta-mail { margin-top: 22px; font-size: 14px; color: var(--muted); }
.cta-mail a { color: var(--fg); text-decoration: underline; text-underline-offset: 4px; text-decoration-color: var(--accent); }

/* ---------- Footer ---------- */
.foot { padding: 64px 0 36px; font-size: 13px; color: var(--muted); background: linear-gradient(180deg, var(--bg-soft), var(--steel)); }
.foot-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); gap: 32px; }
.foot-grid > div > p { max-width: 300px; margin-top: 12px; }
.foot-h { margin-bottom: 12px; font-weight: 600; color: var(--fg); }
.foot-grid a:not(.logo) { display: block; padding: 4px 0; transition: color .2s; }
.foot-grid a:not(.logo):hover { color: var(--fg); }
.foot-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 12px; }
@media (max-width: 860px) { .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .foot-grid > div:first-child { grid-column: 1 / -1; } }
@media (max-width: 480px) { .foot-grid { grid-template-columns: minmax(0, 1fr); } }

/* ---------- Extras: live pill, use-case themes, spec tiles, comparison ---------- */
.pill.live::before { animation: live 2.4s var(--ease-out) infinite; }
@keyframes live { 0% { box-shadow: 0 0 0 0 rgba(232, 83, 30, .55); } 70%, 100% { box-shadow: 0 0 0 8px rgba(232, 83, 30, 0); } }
.t-cs { --uc: linear-gradient(135deg, #ECECEF, #DCDCE0); }
.t-sales { --uc: linear-gradient(135deg, #EFEFF1, #E0E0E4); }
.t-dev { --uc: linear-gradient(135deg, #E7E8EB, #D6D8DC); }
.t-kb { --uc: linear-gradient(135deg, #EDEDF0, #DEDEE2); }
.t-ops { --uc: linear-gradient(135deg, #EAEAEC, #D9D9DD); }
.tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 860px) { .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .tiles { grid-template-columns: minmax(0, 1fr); } }
.tile-spec { position: relative; isolation: isolate; padding: 26px 28px; border-radius: var(--r-lg); background: var(--glass); box-shadow: var(--glass-rim), var(--glass-shadow); }
.tile-spec small { display: block; font-size: 13px; color: var(--muted); }
.tile-spec b { display: block; width: fit-content; margin: 14px 0 10px; font-size: clamp(28px, 3.2vw, 40px); line-height: 1.15; font-weight: 600; letter-spacing: -.03em; font-variant-numeric: tabular-nums; color: var(--fg); }
.tile-spec span { font-size: 14px; color: var(--muted-2); }
.compare { width: 100%; border-collapse: collapse; font-size: 15px; }
.compare th, .compare td { padding: 16px 18px 16px 0; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.compare thead th { font-size: 13px; font-weight: 600; color: var(--muted); border-bottom-color: var(--line-2); }
.compare tbody th { width: 24%; font-weight: 600; }
.compare td { color: var(--muted-2); }
.compare td.hl { color: var(--fg); font-weight: 500; }
@media (max-width: 640px) { .compare { font-size: 14px; } .compare th, .compare td { padding-right: 10px; } }
.deliv { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 48px; }
.deliv > span:first-child { margin-right: 8px; font-size: 14px; font-weight: 600; }

/* ---------- Liquid-glass refraction (desktop Chromium; site.js adds .lg-refract and the SVG filters) ---------- */
.lg-refract .nav-bar::before, .lg-refract .subnav-bar::before { -webkit-backdrop-filter: none; backdrop-filter: url(#lg-bar) blur(5px) saturate(170%) brightness(1.03); }
.lg-refract .btn-ghost { backdrop-filter: url(#lg-pill) blur(4px) saturate(160%); }
.lg-refract .con-card, .lg-refract .chat { backdrop-filter: url(#lg-panel) blur(12px) saturate(160%); }

/* ---------- Scroll reveal (uses `translate` so it never fights hover `transform`) ---------- */
.js .reveal {
  opacity: 0; translate: 0 26px;
  transition: opacity .9s var(--ease) var(--d, 0s), translate .9s var(--ease) var(--d, 0s), transform .55s var(--spring), box-shadow .5s var(--ease), background-color .3s;
}
.js .reveal.in, .js .reveal:focus-within { opacity: 1; translate: none; }

@media print, (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; translate: none; transition: none; }
  .aura, .aura i, .biz-art, .biz-art::before, .biz-art::after, .stack::before, .panel-rack::after, .js .marquee-track, .caret, .pill.live::before, .con-card, .con-label::before { animation: none !important; transition: none !important; }
  .js .marquee-track { flex-wrap: wrap; width: auto; }
  .steps::after { animation: none !important; transform: none !important; }
}
@media print {
  .nav, .subnav, .field, .aura, .skip, .menu-btn, .console, .con-note { display: none !important; }
  .hero, .page-hero { padding-top: 48px; }
  [data-sheen] { background: none; color: var(--fg); }
  .dark { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}
@media (forced-colors: active) {
  .filters button[aria-pressed="true"] { outline: 2px solid CanvasText; outline-offset: -2px; }
  .subnav-links a[aria-current="true"] { text-decoration: underline; text-underline-offset: 6px; }
  .btn, .lang, .chip, .pill, .badge, .card, .layer { border: 1px solid CanvasText; }
  [data-sheen] { background: none; color: CanvasText; }
}