:root {
  color-scheme: light;
  --ink: #121722;
  --muted: #697486;
  --quiet: #98a3b4;
  --line: #dfe5ed;
  --line-strong: #cad3df;
  --paper: #ffffff;
  --pearl: #f5f7fa;
  --pearl-blue: #f0f6ff;
  --blue: #2d85f3;
  --blue-deep: #1769dc;
  --cyan: #42c7ef;
  --green: #22b67a;
  --shadow: 0 30px 90px rgba(50, 72, 108, 0.14);
  --radius: 24px;
  --page: min(1500px, calc(100vw - 64px));
  --ease: cubic-bezier(.2, .75, .2, 1);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  overflow-x: clip;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

img { display: block; max-width: 100%; }

button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--ink);
  color: white;
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  z-index: 50;
  top: 16px;
  left: 50%;
  width: min(1460px, calc(100vw - 32px));
  height: 68px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 14px 0 10px;
  border: 1px solid rgba(205, 214, 226, .78);
  border-radius: 20px;
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 12px 36px rgba(69, 85, 112, .08);
  backdrop-filter: blur(24px) saturate(130%);
  transform: translateX(-50%);
  transition: height .35s var(--ease), background-color .35s var(--ease), box-shadow .35s var(--ease);
}

.site-header.is-scrolled {
  height: 58px;
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 14px 42px rgba(42, 61, 91, .12);
}

.brand {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 780;
  letter-spacing: -.025em;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 11px;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px;
  border-radius: 14px;
  background: rgba(244, 247, 251, .82);
}

.site-header nav a {
  padding: 8px 13px;
  border-radius: 10px;
  color: #566173;
  font-size: 14px;
  font-weight: 600;
  transition: color .2s, background-color .2s;
}

.site-header nav a:hover,
.site-header nav a:focus-visible {
  color: var(--ink);
  background: white;
}

.header-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}

.language-link {
  padding: 10px 12px;
  color: #5c6879;
  font-size: 13px;
  font-weight: 650;
}

.header-download {
  padding: 11px 17px;
  border-radius: 12px;
  background: var(--ink);
  color: white;
  font-size: 14px;
  font-weight: 700;
  transition: transform .25s var(--ease), background-color .25s;
}

.header-download:hover { background: var(--blue-deep); transform: translateY(-1px); }

.hero {
  position: relative;
  padding: 152px 0 96px;
  background:
    radial-gradient(circle at 73% 15%, rgba(66, 199, 239, .08), transparent 30%),
    linear-gradient(180deg, #fff 0%, #fff 70%, #f7f9fc 100%);
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  opacity: .38;
  background-image:
    linear-gradient(rgba(31, 62, 112, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 62, 112, .05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, transparent 0, black 18%, black 58%, transparent 86%);
}

.hero-copy {
  position: relative;
  z-index: 5;
  width: var(--page);
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 26px;
  color: var(--blue-deep);
  font-size: 12px;
  font-weight: 780;
  letter-spacing: .17em;
  text-transform: uppercase;
}

.hero h1 {
  width: min(1040px, 86vw);
  margin: 0;
  font-size: clamp(68px, 7.2vw, 128px);
  font-weight: 730;
  letter-spacing: -.072em;
  line-height: .93;
}

.hero h1 span { display: block; }

.hero h1 .accent {
  color: var(--blue);
  background: linear-gradient(90deg, var(--blue-deep), var(--blue) 55%, #49b6ea);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-body {
  width: min(620px, 48vw);
  margin: 40px 0 0;
  color: #4e5b6e;
  font-size: clamp(18px, 1.35vw, 21px);
  line-height: 1.68;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-top: 34px;
}

.primary-download {
  min-width: 294px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 13px;
  padding: 14px 16px;
  border: 1px solid rgba(21, 101, 215, .3);
  border-radius: 17px;
  background: linear-gradient(135deg, #318cf7, #1f72e7);
  box-shadow: 0 18px 40px rgba(34, 118, 229, .24);
  color: white;
  transition: box-shadow .3s, transform .3s;
}

.primary-download:hover {
  box-shadow: 0 24px 54px rgba(34, 118, 229, .32);
  transform: translateY(-3px);
}

.platform-mark { font-size: 30px; line-height: 1; }

.primary-download strong,
.primary-download small { display: block; }

.primary-download strong { font-size: 16px; }
.primary-download small { margin-top: 4px; opacity: .74; font-size: 11px; }
.download-arrow { font-size: 24px; }

.text-link {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: #3f4d61;
  font-size: 15px;
  font-weight: 700;
}

.text-link span {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: transform .25s var(--ease);
}

.text-link:hover span { transform: translate(3px, 3px); }

.platform-note { margin: 15px 0 0; color: var(--quiet); font-size: 12px; }

.hero-stage {
  position: relative;
  z-index: 4;
  width: min(1320px, calc(100vw - 44px));
  margin: 88px auto 0;
  perspective: 1400px;
}

.stage-ruler,
.screen-index {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  margin: 0 2px 12px;
  color: var(--blue);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
  letter-spacing: .08em;
}

.stage-ruler i,
.screen-index i { height: 1px; background: linear-gradient(90deg, var(--blue), var(--line)); }

.hero-window,
.product-screen {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(181, 194, 211, .85);
  border-radius: 21px;
  background: white;
  box-shadow: var(--shadow);
}

.hero-window {
  transform: rotateX(1.8deg) rotateY(-1deg) translateZ(0);
  transform-origin: 50% 100%;
  transition: transform .7s var(--ease);
}

.hero-window:hover { transform: rotateX(0) rotateY(0) translateY(-6px); }

.hero-window img,
.product-screen img { width: 100%; height: auto; }

.floating-label {
  position: absolute;
  z-index: 6;
  padding: 8px 11px;
  border: 1px solid rgba(45, 133, 243, .2);
  border-radius: 100px;
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 8px 24px rgba(40, 84, 147, .08);
  backdrop-filter: blur(12px);
  color: var(--blue-deep);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .12em;
}

.label-a { top: 16%; left: -18px; }
.label-b { top: 43%; right: -18px; }
.label-c { bottom: 10%; left: 22%; }

.hero-orbit {
  position: absolute;
  border: 1px solid rgba(45, 133, 243, .14);
  border-radius: 50%;
  pointer-events: none;
}

.orbit-one { top: 130px; right: -280px; width: 720px; height: 720px; }
.orbit-two { top: 250px; right: -170px; width: 460px; height: 460px; }

.proof-rail {
  position: relative;
  z-index: 6;
  width: var(--page);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 72px auto 0;
  border-top: 1px solid var(--line);
}

.proof-rail > div {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3px 16px;
  padding: 24px 34px 0 0;
}

.proof-rail > div + div { padding-left: 34px; border-left: 1px solid var(--line); }
.proof-rail span { grid-row: 1 / 3; color: var(--blue); font-size: 12px; font-weight: 800; }
.proof-rail strong { font-size: 15px; }
.proof-rail p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }

.product-theater {
  position: relative;
  padding: 180px 0 120px;
  background: var(--pearl);
}

.section-intro {
  width: min(1160px, calc(100vw - 64px));
  margin: 0 auto 70px;
  text-align: center;
}

.section-intro h2,
.role-launch h2,
.privacy-section h2,
.download-section h2 {
  margin: 0;
  font-size: clamp(52px, 6.1vw, 98px);
  line-height: .98;
  letter-spacing: -.058em;
}

.section-intro > p:last-child {
  max-width: 680px;
  margin: 28px auto 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.theater-grid {
  width: var(--page);
  display: grid;
  grid-template-columns: minmax(340px, .72fr) minmax(0, 1.52fr);
  gap: clamp(54px, 7vw, 110px);
  margin: 0 auto;
}

.story-step {
  position: relative;
  min-height: 95vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 30px 80px 0;
  opacity: .26;
  transition: opacity .55s var(--ease);
}

.story-step.is-active { opacity: 1; }

.story-number {
  position: absolute;
  top: 13%;
  left: -10px;
  z-index: 0;
  color: rgba(45, 133, 243, .09);
  font-size: clamp(130px, 15vw, 250px);
  font-weight: 700;
  letter-spacing: -.1em;
  line-height: 1;
}

.story-step > *:not(.story-number) { position: relative; z-index: 1; }

.story-meta {
  margin: 0 0 20px;
  color: var(--blue-deep) !important;
  font-size: 11px !important;
  font-weight: 800;
  letter-spacing: .16em;
}

.story-step h3 {
  max-width: 560px;
  margin: 0;
  font-size: clamp(44px, 4.8vw, 76px);
  line-height: 1.02;
  letter-spacing: -.05em;
}

.story-step > p {
  max-width: 520px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(16px, 1.35vw, 20px);
  line-height: 1.75;
}

.story-progress {
  width: min(320px, 80%);
  height: 2px;
  margin-top: 36px;
  overflow: hidden;
  background: #dce3ec;
}

.story-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .7s var(--ease);
}

.story-step.is-active .story-progress span { transform: scaleX(1); }

.screen-column { position: relative; }

.screen-sticky {
  position: sticky;
  top: 118px;
  height: calc(100vh - 142px);
  min-height: 610px;
  display: grid;
  align-items: center;
  perspective: 1600px;
}

.screen-index { position: absolute; top: 0; left: 0; right: 0; }

.product-screen {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  opacity: 0;
  transform: translate(-46%, -46%) scale(.88) rotateY(-6deg);
  transition: opacity .65s var(--ease), transform .85s var(--ease), filter .65s;
  filter: blur(8px);
}

.product-screen.is-active {
  z-index: 4;
  opacity: 1;
  transform: translate(-50%, -50%) scale(1) rotateY(0);
  filter: blur(0);
}

.screen-focus {
  position: absolute;
  z-index: 8;
  border: 1px solid rgba(45, 133, 243, .42);
  border-radius: 13px;
  background: rgba(45, 133, 243, .035);
  box-shadow: 0 0 0 5px rgba(45, 133, 243, .035), 0 12px 36px rgba(45, 133, 243, .08);
  opacity: 0;
  pointer-events: none;
  transform: scale(.96);
  transition:
    top .7s var(--ease),
    right .7s var(--ease),
    width .7s var(--ease),
    height .7s var(--ease),
    opacity .35s,
    transform .7s var(--ease);
}

.screen-focus::before,
.screen-focus::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.screen-focus::before {
  top: -2px;
  left: -2px;
  border-top: 2px solid var(--blue);
  border-left: 2px solid var(--blue);
}

.screen-focus::after {
  right: -2px;
  bottom: -2px;
  border-right: 2px solid var(--blue);
  border-bottom: 2px solid var(--blue);
}

.screen-sticky[data-active="1"] .focus-top {
  top: 30%; right: 28%; width: 10%; height: 27%; opacity: 1; transform: scale(1);
}

.screen-sticky[data-active="1"] .focus-bottom {
  top: 30%; right: 1.7%; width: 7.5%; height: 27%; opacity: .76; transform: scale(1);
}

.screen-sticky[data-active="2"] .focus-top {
  top: 30%; right: 16.5%; width: 10%; height: 21%; opacity: 1; transform: scale(1);
}

.screen-sticky[data-active="2"] .focus-bottom {
  top: 30%; right: 1.8%; width: 6.5%; height: 21%; opacity: .76; transform: scale(1);
}

.role-launch {
  min-height: 960px;
  display: grid;
  grid-template-columns: .9fr 1.25fr;
  align-items: center;
  gap: clamp(50px, 8vw, 130px);
  padding: 140px max(32px, calc((100vw - 1500px) / 2));
  overflow: hidden;
  background: white;
}

.launch-copy > p:last-child,
.privacy-copy > p:nth-of-type(2),
.download-section > p:nth-of-type(2) {
  max-width: 650px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.75;
}

.session-fan {
  position: relative;
  min-height: 640px;
  perspective: 1600px;
}

.session-card {
  position: absolute;
  top: 110px;
  left: 50%;
  width: min(620px, 52vw);
  height: 390px;
  overflow: hidden;
  border: 1px solid rgba(176, 190, 210, .9);
  border-radius: 22px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 34px 80px rgba(42, 66, 102, .13);
  transition: transform .8s var(--ease);
}

.session-1 { z-index: 3; transform: translateX(-54%) rotate(-7deg) translate(-95px, 30px); }
.session-2 { z-index: 4; transform: translateX(-50%) rotate(1.5deg); }
.session-3 { z-index: 2; transform: translateX(-42%) rotate(8deg) translate(105px, 44px); }

.session-fan.is-visible .session-1 { transform: translateX(-54%) rotate(-9deg) translate(-130px, 20px); }
.session-fan.is-visible .session-2 { transform: translateX(-50%) rotate(0) translateY(-20px); }
.session-fan.is-visible .session-3 { transform: translateX(-42%) rotate(9deg) translate(135px, 26px); }

.session-bar {
  height: 52px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 17px;
  border-bottom: 1px solid var(--line);
  background: #f7f9fc;
}

.session-bar i { width: 10px; height: 10px; border-radius: 50%; background: #ff6058; }
.session-bar i:nth-child(2) { background: #ffbd2e; }
.session-bar i:nth-child(3) { background: #28c840; margin-right: 8px; }
.session-bar span { color: #566173; font-size: 13px; font-weight: 700; }

.session-page { padding: 56px; }
.session-avatar { width: 70px; height: 70px; display: grid; place-items: center; border-radius: 19px; background: var(--pearl-blue); color: var(--blue); font-size: 20px; font-weight: 800; }
.session-page b { display: block; margin: 22px 0 28px; font-size: 24px; }
.session-page i { display: block; width: 78%; height: 11px; margin: 12px 0; border-radius: 20px; background: #e7edf4; }
.session-page i:nth-of-type(2) { width: 54%; }
.session-page i:nth-of-type(3) { width: 67%; }

.session-path {
  position: absolute;
  z-index: 8;
  right: 5%;
  bottom: 60px;
  left: 5%;
  display: flex;
  justify-content: space-between;
}

.session-path::before { content: ""; position: absolute; top: 6px; left: 8px; right: 8px; height: 1px; background: var(--blue); }
.session-path span { position: relative; width: 13px; height: 13px; border: 3px solid white; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 1px var(--blue); }
.session-fan > p { position: absolute; right: 0; bottom: 18px; margin: 0; color: var(--blue-deep); font-size: 11px; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }

.privacy-section {
  min-height: 1040px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: clamp(80px, 9vw, 160px);
  padding: 160px max(32px, calc((100vw - 1500px) / 2));
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 50%, rgba(46, 137, 246, .12), transparent 34%),
    linear-gradient(180deg, var(--pearl) 0%, #fff 100%);
}

.privacy-facts {
  margin-top: 54px;
  border-top: 1px solid var(--line-strong);
}

.privacy-fact {
  display: grid;
  grid-template-columns: 48px minmax(130px, .7fr) 1.3fr;
  align-items: start;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.privacy-fact span { color: var(--blue); font: 700 11px ui-monospace, monospace; }
.privacy-fact strong { font-size: 15px; }
.privacy-fact p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }

.local-proof {
  position: relative;
  min-height: 660px;
  isolation: isolate;
}

.local-proof::before {
  content: "";
  position: absolute;
  z-index: -2;
  inset: 6% -12% 4% -8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45, 133, 243, .13), rgba(45, 133, 243, 0) 67%);
  filter: blur(8px);
}

.local-proof-grid {
  position: absolute;
  z-index: -1;
  inset: 12% -10% 5% 2%;
  opacity: .45;
  background-image:
    linear-gradient(rgba(45, 133, 243, .1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 133, 243, .1) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at 50% 48%, black 12%, transparent 70%);
}

.local-proof-ruler {
  position: absolute;
  z-index: 4;
  top: 8%;
  right: -2%;
  left: -2%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  color: var(--blue-deep);
  font: 800 10px ui-monospace, "SFMono-Regular", Consolas, monospace;
  letter-spacing: .12em;
}

.local-proof-ruler i {
  height: 1px;
  background: linear-gradient(90deg, var(--blue), rgba(45, 133, 243, .12));
}

.privacy-screen {
  position: absolute;
  z-index: 2;
  top: 52%;
  left: 50%;
  width: min(780px, 48vw);
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(159, 180, 209, .86);
  border-radius: 21px;
  background: white;
  box-shadow: 0 42px 100px rgba(40, 72, 118, .2);
  transform: translate(-49%, -50%) rotate(1deg);
  transition: transform .7s var(--ease), box-shadow .7s var(--ease);
}

.privacy-screen:hover {
  box-shadow: 0 50px 120px rgba(40, 72, 118, .24);
  transform: translate(-49%, -52%) rotate(0);
}

.privacy-screen img {
  width: 100%;
  height: auto;
  display: block;
}

.local-proof-seal {
  position: absolute;
  z-index: 5;
  bottom: 7%;
  left: -3%;
  width: 152px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  border: 1px solid rgba(45, 133, 243, .24);
  border-radius: 50%;
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 18px 60px rgba(45, 109, 190, .15), inset 0 0 0 8px rgba(45, 133, 243, .04);
  backdrop-filter: blur(14px);
  color: var(--blue-deep);
  text-align: center;
}

.local-proof-seal strong { font-size: 12px; letter-spacing: .1em; }
.local-proof-seal small { color: var(--muted); font-size: 9px; letter-spacing: .09em; }

.seal-lock {
  position: relative;
  width: 26px;
  height: 22px;
  margin-top: 8px;
  border-radius: 6px;
  background: var(--blue);
}

.seal-lock::before {
  content: "";
  position: absolute;
  top: -13px;
  left: 6px;
  width: 14px;
  height: 15px;
  border: 3px solid var(--blue);
  border-bottom: 0;
  border-radius: 9px 9px 0 0;
}

.seal-lock::after {
  content: "";
  position: absolute;
  top: 8px;
  left: 11px;
  width: 4px;
  height: 7px;
  border-radius: 4px;
  background: white;
}

.local-proof-path {
  position: absolute;
  z-index: 4;
  right: -1%;
  bottom: 11%;
  width: 220px;
  color: var(--blue-deep);
  font: 800 9px ui-monospace, "SFMono-Regular", Consolas, monospace;
  letter-spacing: .1em;
  text-align: right;
}

.local-proof-path i {
  position: relative;
  display: block;
  height: 1px;
  margin-bottom: 10px;
  background: var(--blue);
}

.local-proof-path i::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
}

.download-section {
  position: relative;
  min-height: 940px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 160px 32px;
  text-align: center;
  background: white;
}

.download-section h2 { max-width: 1100px; }
.download-section > p:nth-of-type(2) { max-width: 660px; margin-right: auto; margin-left: auto; }

.download-line {
  position: absolute;
  top: 0;
  left: 50%;
  width: 1px;
  height: 110px;
  background: linear-gradient(var(--blue), transparent);
}

.download-grid {
  width: min(1120px, calc(100vw - 64px));
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr;
  gap: 14px;
  margin-top: 52px;
}

.download-card {
  min-height: 124px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: white;
  text-align: left;
  transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
}

.download-card:hover { z-index: 2; border-color: rgba(45,133,243,.34); box-shadow: 0 22px 50px rgba(42,73,118,.12); transform: translateY(-6px); }
.download-card-primary { border-color: transparent; background: linear-gradient(135deg, #318cf7, #1769dc); box-shadow: 0 22px 50px rgba(28,105,218,.24); color: white; }
.os-mark { width: 55px; height: 55px; display: grid; place-items: center; border-radius: 15px; background: rgba(45,133,243,.08); color: var(--blue); font-size: 30px; }
.download-card-primary .os-mark { background: rgba(255,255,255,.13); color: white; }
.download-card span:nth-child(2) { min-width: 0; }
.download-card small, .download-card strong, .download-card em { display: block; }
.download-card small { color: var(--quiet); font-size: 11px; text-transform: uppercase; letter-spacing: .12em; }
.download-card-primary small { color: rgba(255,255,255,.7); }
.download-card strong { margin-top: 5px; overflow: hidden; font-size: 16px; text-overflow: ellipsis; white-space: nowrap; }
.download-card em { margin-top: 5px; color: var(--quiet); font-size: 11px; font-style: normal; }
.download-card-primary em { color: rgba(255,255,255,.7); }
.download-card b { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--blue); font-size: 20px; }
.download-card-primary b { border-color: rgba(255,255,255,.28); color: white; }
.download-card-disabled {
  cursor: default;
  background: var(--pearl);
  color: var(--muted);
}
.download-card-disabled:hover { border-color: var(--line); box-shadow: none; transform: none; }
.download-card-disabled .os-mark,
.download-card-disabled b { color: var(--quiet); }

footer {
  min-height: 230px;
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  align-items: center;
  gap: 36px;
  padding: 50px max(32px, calc((100vw - 1500px) / 2));
  border-top: 1px solid var(--line);
  background: var(--pearl);
  color: var(--muted);
  font-size: 13px;
}

.footer-brand { color: var(--ink); }
.footer-brand img { width: 36px; height: 36px; }
footer p { margin: 0; }
footer > a:last-child { color: var(--blue-deep); font-weight: 700; }

.reveal {
  opacity: 0;
  transform: translateY(24px);
  animation: reveal-in .9s var(--ease) forwards;
}

.hero h1.reveal { animation-delay: .08s; }
.hero-body.reveal { animation-delay: .16s; }
.hero-actions.reveal { animation-delay: .24s; }
.platform-note.reveal { animation-delay: .3s; }

@keyframes reveal-in { to { opacity: 1; transform: translateY(0); } }

@media (max-width: 1180px) {
  :root { --page: calc(100vw - 40px); }
  .site-header nav { display: none; }
  .site-header { grid-template-columns: 1fr auto; }
  .header-actions { grid-column: 2; }
  .hero h1 { width: 94%; }
  .hero-body { width: min(660px, 70vw); }
  .hero-stage { margin-top: 76px; }
  .proof-rail { margin-top: 58px; }
  .theater-grid { grid-template-columns: .7fr 1.3fr; gap: 42px; }
  .story-step { padding-right: 0; }
  .screen-focus { display: none; }
  .role-launch, .privacy-section { grid-template-columns: 1fr; }
  .role-launch { padding-bottom: 40px; }
  .launch-copy { max-width: 900px; }
  .session-card { width: 68vw; }
  .privacy-copy { max-width: 900px; }
  .local-proof { min-height: 690px; }
  .privacy-screen { width: min(900px, 82vw); }
  .local-proof-seal { left: 2%; }
  .local-proof-path { right: 2%; }
  footer { grid-template-columns: 1fr auto; }
  footer p { display: none; }
}

@media (max-width: 820px) {
  :root { --page: calc(100vw - 28px); --radius: 18px; }
  .site-header { top: 8px; width: calc(100vw - 16px); height: 58px; border-radius: 16px; }
  .brand span { font-size: 16px; }
  .brand img { width: 36px; height: 36px; border-radius: 9px; }
  .language-link { padding: 9px 5px; }
  .header-download { display: none; }
  .hero { padding: 116px 0 78px; }
  .hero-copy { text-align: left; }
  .eyebrow { margin-bottom: 18px; font-size: 10px; }
  .hero h1 { width: 100%; font-size: clamp(52px, 15vw, 82px); letter-spacing: -.065em; }
  .hero-body { width: 100%; margin-top: 26px; font-size: 16px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; margin-top: 26px; }
  .primary-download { min-width: min(100%, 330px); }
  .hero-stage { width: calc(100vw - 20px); margin-top: 58px; }
  .stage-ruler { display: none; }
  .hero-window, .product-screen { border-radius: 13px; }
  .floating-label, .hero-orbit { display: none; }
  .proof-rail { display: none; }
  .product-theater { padding: 100px 0 80px; }
  .section-intro { width: calc(100vw - 32px); margin-bottom: 60px; text-align: left; }
  .section-intro h2, .role-launch h2, .privacy-section h2, .download-section h2 { font-size: clamp(46px, 13vw, 68px); }
  .section-intro > p:last-child { margin-left: 0; font-size: 16px; }
  .theater-grid { width: 100%; display: block; }
  .story-column { padding: 0 16px; }
  .story-step { min-height: auto; padding: 84px 0 30px; opacity: 1; }
  .story-step + .story-step { margin-top: 78vw; }
  .story-number { top: 16px; left: -6px; font-size: 120px; }
  .story-step h3 { font-size: 44px; }
  .story-step > p { font-size: 16px; }
  .screen-column { position: absolute; top: 550px; right: 0; bottom: 0; left: 0; pointer-events: none; }
  .screen-sticky { top: 76px; min-height: 0; height: 50vw; margin: 0 8px; }
  .screen-index { display: none; }
  .product-screen { width: 100%; }
  .role-launch, .privacy-section { min-height: 0; gap: 20px; padding: 110px 16px; }
  .launch-copy > p:last-child, .privacy-copy > p:nth-of-type(2), .download-section > p:nth-of-type(2) { font-size: 16px; }
  .session-fan { min-height: 430px; margin-top: 30px; }
  .session-card { top: 70px; width: 80vw; height: 260px; border-radius: 16px; }
  .session-bar { height: 39px; }
  .session-page { padding: 28px; }
  .session-avatar { width: 46px; height: 46px; border-radius: 12px; font-size: 14px; }
  .session-page b { margin: 14px 0; font-size: 18px; }
  .session-1 { transform: translateX(-52%) rotate(-7deg) translate(-38px, 25px); }
  .session-3 { transform: translateX(-48%) rotate(7deg) translate(38px, 27px); }
  .session-fan.is-visible .session-1 { transform: translateX(-52%) rotate(-8deg) translate(-48px, 18px); }
  .session-fan.is-visible .session-3 { transform: translateX(-48%) rotate(8deg) translate(48px, 20px); }
  .session-path { bottom: 38px; }
  .privacy-fact { grid-template-columns: 34px 1fr; }
  .privacy-fact p { grid-column: 2; }
  .local-proof { min-height: 450px; margin-top: 28px; }
  .privacy-screen { top: 50%; left: 50%; width: calc(100vw - 24px); border-radius: 14px; transform: translate(-50%, -50%); }
  .privacy-screen:hover { transform: translate(-50%, -50%); }
  .local-proof-ruler { top: 0; right: 0; left: 0; }
  .local-proof-seal { bottom: -4px; left: 2px; width: 104px; }
  .local-proof-path { right: 0; bottom: 3px; width: 174px; font-size: 8px; }
  .download-section { min-height: 0; padding: 120px 16px; align-items: flex-start; text-align: left; }
  .download-grid { width: 100%; grid-template-columns: 1fr; }
  .download-card { min-height: 104px; }
  footer { min-height: 180px; display: flex; flex-wrap: wrap; padding: 38px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .product-screen { filter: none; }
}