:root {
  color-scheme: dark;
  --bg: #050506;
  --surface: rgba(16, 16, 19, 0.72);
  --line: rgba(255, 255, 255, 0.1);
  --text: #f6f6f7;
  --muted: #99999f;
  --soft: #c6c6ca;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: #020203; overflow-x: clip; scroll-behavior: smooth; }
body {
  min-height: 100%;
  margin: 0;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { max-width: 100%; }

.page-shell { width: min(1280px, calc(100% - 72px)); margin: 0 auto; }

.site-header {
  position: relative;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.brand { display: inline-flex; align-items: center; }
.brand-wordmark { display: block; width: clamp(164px, 14vw, 205px); }
.nav-actions { display: flex; align-items: center; gap: 14px; }
.lang-toggle {
  display: grid;
  grid-template-columns: repeat(2, 46px);
  padding: 3px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 10px;
  background: #09090b;
}
.lang-button {
  height: 34px;
  border: 0;
  border-radius: 7px;
  color: #85858c;
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
}
.lang-button:hover, .lang-button:focus-visible { color: #fff; }
.lang-button.is-active { color: #fff; background: #252529; }
.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 19px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 9px;
  color: #dedee1;
  font-size: 14px;
  font-weight: 650;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}
.nav-link:hover, .nav-link:focus-visible { border-color: rgba(255,255,255,.26); background: #111114; transform: translateY(-1px); }

.hero {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(470px, 0.94fr) minmax(540px, 1.06fr);
  gap: clamp(26px, 4vw, 64px);
  align-items: center;
  min-height: calc(100svh - 76px);
  padding: clamp(62px, 8vh, 100px) 0 clamp(70px, 9vh, 112px);
}
.hero-copy { position: relative; z-index: 10; max-width: 640px; }
.eyebrow, .panel-kicker {
  margin: 0 0 20px;
  color: #b4b4b9;
  font-size: 12px;
  font-weight: 760;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 999px;
  background: rgba(255,255,255,.045);
}
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(50px, 5.15vw, 70px);
  line-height: 1.08;
  font-weight: 890;
  letter-spacing: -.052em;
  text-wrap: balance;
}
.slogan {
  margin: 28px 0 0;
  color: #f0f0f2;
  font-size: clamp(24px, 2.35vw, 32px);
  line-height: 1.25;
  font-weight: 760;
  letter-spacing: -.025em;
}
.intro { max-width: 620px; margin: 18px 0 0; color: #a5a5ab; font-size: 16px; line-height: 1.82; }
.cta-row { display: flex; margin-top: 34px; }
.primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-width: 194px;
  min-height: 54px;
  padding: 0 27px;
  border: 1px solid rgba(255,255,255,.86);
  border-radius: 999px;
  color: #09090b;
  background: #f2f2f3;
  box-shadow: 0 18px 48px rgba(255,255,255,.08);
  font-size: 15px;
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}
.primary-cta:hover, .primary-cta:focus-visible { transform: translateY(-2px); background: #fff; box-shadow: 0 22px 58px rgba(255,255,255,.13); }
.primary-cta.is-disabled { opacity: .52; cursor: not-allowed; }
.cta-icon { width: 14px; height: 14px; }
.platforms { display: flex; align-items: center; gap: 20px; margin-top: 28px; }
.platform { display: grid; grid-template-columns: 24px auto; grid-template-areas: "icon name" "icon status"; column-gap: 11px; align-items: center; }
.platform-logo { grid-area: icon; width: 22px; height: 22px; object-fit: contain; }
.platform-logo.apple { filter: invert(1); }
.platform-logo.android { opacity: .94; filter: brightness(0) invert(1); }
.platform span { grid-area: name; color: #f5f5f6; font-size: 14px; font-weight: 760; }
.platform strong { grid-area: status; color: #707078; font-size: 11px; font-weight: 650; }
.platform-divider { width: 1px; height: 30px; background: rgba(255,255,255,.1); }

.hero-visual { position: relative; z-index: 2; min-height: 660px; }
.visual-stage { position: relative; width: 100%; height: 660px; isolation: isolate; }
.black-hole {
  position: absolute;
  top: -180px;
  left: -590px;
  z-index: 0;
  width: 1500px;
  opacity: .42;
  transform-origin: 68% 50%;
  pointer-events: none;
  will-change: opacity;
}
.black-hole img { display: block; width: 100%; will-change: transform, opacity; }
.black-hole-base {
  position: relative;
  z-index: 1;
  opacity: .36;
  filter: blur(3px) saturate(.6);
}
.black-hole-atmosphere,
.black-hole-reveal {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}
.black-hole-atmosphere {
  opacity: .28;
  mix-blend-mode: screen;
  filter: blur(1.5px);
  -webkit-mask-image: linear-gradient(
    to bottom,
    transparent 31%,
    rgba(0,0,0,.42) 39%,
    #000 47%,
    #000 53%,
    rgba(0,0,0,.42) 61%,
    transparent 69%
  );
  mask-image: linear-gradient(
    to bottom,
    transparent 31%,
    rgba(0,0,0,.42) 39%,
    #000 47%,
    #000 53%,
    rgba(0,0,0,.42) 61%,
    transparent 69%
  );
}
.black-hole-reveal {
  --lens-x: 68%;
  --lens-y: 50%;
  --lens-r: 13%;
  z-index: 3;
  opacity: .96;
  filter: contrast(1.12) saturate(.92) drop-shadow(0 0 12px rgba(231,238,255,.22));
  -webkit-mask-image: radial-gradient(
    circle at var(--lens-x) var(--lens-y),
    #000 0,
    #000 calc(var(--lens-r) - 5%),
    rgba(0,0,0,.86) calc(var(--lens-r) - 2%),
    rgba(0,0,0,.3) calc(var(--lens-r) + 2%),
    transparent calc(var(--lens-r) + 6%)
  );
  mask-image: radial-gradient(
    circle at var(--lens-x) var(--lens-y),
    #000 0,
    #000 calc(var(--lens-r) - 5%),
    rgba(0,0,0,.86) calc(var(--lens-r) - 2%),
    rgba(0,0,0,.3) calc(var(--lens-r) + 2%),
    transparent calc(var(--lens-r) + 6%)
  );
}
.spectral-copy {
  --lens-x: 72%;
  --lens-y: 50%;
  --lens-r: 18%;
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}
.spectral-word {
  position: absolute;
  top: 248px;
  left: 8px;
  color: #f4f5f7;
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(76px, 7vw, 112px);
  font-weight: 760;
  letter-spacing: -.065em;
  white-space: nowrap;
  will-change: transform, opacity;
}
.spectral-copy-ambient { opacity: .035; filter: blur(4px); }
.spectral-copy-reveal {
  z-index: 4;
  opacity: .28;
  mix-blend-mode: screen;
  -webkit-mask-image: radial-gradient(
    circle at var(--lens-x) var(--lens-y),
    #000 0,
    #000 calc(var(--lens-r) - 6%),
    rgba(0,0,0,.9) calc(var(--lens-r) - 2%),
    rgba(0,0,0,.34) calc(var(--lens-r) + 3%),
    transparent calc(var(--lens-r) + 8%)
  );
  mask-image: radial-gradient(
    circle at var(--lens-x) var(--lens-y),
    #000 0,
    #000 calc(var(--lens-r) - 6%),
    rgba(0,0,0,.9) calc(var(--lens-r) - 2%),
    rgba(0,0,0,.34) calc(var(--lens-r) + 3%),
    transparent calc(var(--lens-r) + 8%)
  );
}
.spectral-copy-reveal .spectral-word {
  filter: blur(2.4px);
}
.gravity-lens-halo {
  --lens-x: 72%;
  --lens-y: 50%;
  --lens-size: 40%;
  position: absolute;
  top: var(--lens-y);
  left: var(--lens-x);
  z-index: 3;
  width: var(--lens-size);
  aspect-ratio: 1;
  border: 1px solid rgba(225,232,246,.2);
  border-radius: 50%;
  opacity: .24;
  box-shadow:
    0 0 18px rgba(219,228,246,.2),
    inset 0 0 20px rgba(219,228,246,.12);
  filter: blur(7px);
  transform: translate(-50%, -50%);
  transform-origin: center;
  pointer-events: none;
  will-change: left, top, width, opacity;
  transition: opacity .35s ease;
}
.hero[data-lens-active="true"] .gravity-lens-halo { opacity: .62; }
.research-terms {
  position: absolute;
  top: 155px;
  left: -12px;
  z-index: 2;
  display: grid;
  gap: 20px;
  color: rgba(255,255,255,.32);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  letter-spacing: .18em;
  text-transform: uppercase;
  pointer-events: none;
}
.research-terms span { will-change: transform, opacity; }
.phone-wrap { position: absolute; top: 18px; right: 26px; z-index: 7; will-change: transform; }
.phone-frame {
  position: relative;
  width: 300px;
  aspect-ratio: .46;
  padding: 10px;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 48px;
  background: #202024;
  box-shadow: 0 54px 110px rgba(0,0,0,.72), 0 0 0 4px rgba(255,255,255,.035), inset 0 1px 0 rgba(255,255,255,.2);
}
.phone-frame::after { position: absolute; inset: 5px; z-index: -1; border: 1px solid rgba(255,255,255,.08); border-radius: 43px; content: ""; }
.phone-screen {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  box-sizing: border-box;
  overflow: hidden;
  padding: 3px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 38px;
  background: #f7f7f7;
}
.phone-statusbar {
  position: relative;
  z-index: 5;
  display: flex;
  flex: 0 0 32px;
  align-items: center;
  justify-content: space-between;
  padding: 0 11px;
  color: #0a0b10;
  background: #f7f7f7;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 8px;
  font-weight: 760;
}
.phone-status-time { min-width: 28px; letter-spacing: -.02em; }
.phone-dynamic-island {
  position: absolute;
  top: 5px;
  left: 50%;
  width: 72px;
  height: 21px;
  border-radius: 999px;
  background: #08090b;
  box-shadow: inset 0 1px 1px rgba(255,255,255,.12), 0 1px 2px rgba(0,0,0,.2);
  transform: translateX(-50%);
}
.phone-status-icons { display: flex; align-items: center; gap: 5px; }
.phone-signal { display: flex; width: 12px; height: 8px; align-items: flex-end; gap: 1px; }
.phone-signal i { display: block; width: 2px; border-radius: 2px; background: currentColor; }
.phone-signal i:nth-child(1) { height: 3px; }
.phone-signal i:nth-child(2) { height: 4px; }
.phone-signal i:nth-child(3) { height: 6px; }
.phone-signal i:nth-child(4) { height: 8px; }
.phone-battery {
  position: relative;
  width: 14px;
  height: 7px;
  border: 1px solid currentColor;
  border-radius: 2px;
}
.phone-battery::before { position: absolute; inset: 1px; border-radius: 1px; background: currentColor; content: ""; }
.phone-battery::after { position: absolute; top: 2px; right: -3px; width: 2px; height: 3px; border-radius: 0 1px 1px 0; background: currentColor; content: ""; }
.phone-app-viewport {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  background: #f7f7f7;
}
.app-screen-preview {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 34px;
  object-fit: contain;
  object-position: center;
  background: #f7f7f7;
}
.app-brand-overlay {
  position: absolute;
  top: 43.1%;
  left: 31.7%;
  z-index: 2;
  display: grid;
  width: 36.6%;
  height: 5.2%;
  place-items: center;
  overflow: hidden;
  background-color: #fafafa;
  background-image:
    linear-gradient(rgba(228, 230, 234, .36) 1px, transparent 1px),
    linear-gradient(90deg, rgba(228, 230, 234, .36) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.app-brand-overlay img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.phone-homebar {
  position: relative;
  z-index: 5;
  display: grid;
  flex: 0 0 18px;
  place-items: center;
  background: #f7f7f7;
}
.phone-homebar span { width: 78px; height: 4px; border-radius: 999px; background: #101114; }
.screen-sheen { position: absolute; inset: -20% auto -20% -70%; width: 38%; background: rgba(255,255,255,.12); filter: blur(12px); transform: rotate(10deg); pointer-events: none; will-change: transform, opacity; }
.app-icon-float {
  position: absolute;
  right: -17px;
  bottom: 14px;
  z-index: 10;
  width: 112px;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 28px;
  background: #09090b;
  box-shadow: 0 26px 72px rgba(0,0,0,.75), 0 0 36px rgba(210,220,255,.1);
  will-change: transform;
}
.app-icon-float img { display: block; width: 100%; height: 100%; object-fit: cover; }

/* TRIONN-inspired phone scene: one 3D subject, one shared motion system. */
.visual-stage {
  perspective: 1250px;
  perspective-origin: 62% 48%;
}
.visual-stage::before {
  position: absolute;
  inset: -140px -220px -80px -260px;
  z-index: -2;
  opacity: .13;
  content: "";
  pointer-events: none;
}
.phone-scene {
  position: absolute;
  inset: 0;
  z-index: 6;
  display: grid;
  place-items: center;
  cursor: grab;
  touch-action: none;
  outline: none;
}
.phone-scene:active { cursor: grabbing; }
.phone-scene:focus-visible .phone-frame { outline: 2px solid rgba(191, 204, 255, .95); outline-offset: 8px; }
.phone-rig {
  position: relative;
  width: 322px;
  aspect-ratio: .498;
  transform-style: preserve-3d;
  transform: rotateX(7deg) rotateY(-10deg);
  will-change: transform;
}
.phone-scene .phone-wrap {
  position: relative;
  top: auto;
  right: auto;
  z-index: 7;
  width: 100%;
  height: 100%;
  transform: none;
  transform-style: preserve-3d;
  will-change: transform, opacity;
}
.phone-scene .phone-frame { width: 100%; height: 100%; aspect-ratio: auto; }
.phone-depth {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border: 1px solid rgba(184, 196, 255, .2);
  border-radius: 48px;
  background: #11131b;
  box-shadow: 0 0 0 1px rgba(255,255,255,.025), 0 40px 100px rgba(0,0,0,.45);
  transform-style: preserve-3d;
  will-change: transform, opacity;
}
.phone-depth-back {
  z-index: 1;
  background: #171a25;
  transform: translate3d(22px, 8px, -70px) rotateY(-1deg);
}
.phone-depth-mid {
  z-index: 3;
  padding: 11px;
  background: #222631;
  transform: translate3d(11px, 4px, -34px);
}
.phone-depth-mid img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 37px;
  object-fit: cover;
  opacity: .3;
  filter: saturate(.45) contrast(1.05);
}
.phone-scene .app-icon-float {
  right: -54px;
  bottom: 20px;
  z-index: 12;
  transform: translateZ(70px);
}
.scene-type {
  position: absolute;
  top: 29%;
  left: -5%;
  z-index: 0;
  display: grid;
  color: rgba(238, 241, 255, .075);
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(68px, 7.4vw, 112px);
  font-weight: 800;
  line-height: .78;
  letter-spacing: -.075em;
  white-space: nowrap;
  pointer-events: none;
}
.scene-type span:last-child { margin-left: 90px; }
.energy-rail {
  position: absolute;
  left: -42%;
  z-index: 2;
  width: 112%;
  height: 1px;
  overflow: visible;
  background: rgba(151, 169, 255, .16);
  box-shadow: 0 0 18px rgba(95, 123, 255, .28);
  transform-origin: 100% 50%;
  pointer-events: none;
}
.energy-rail::after {
  position: absolute;
  right: -5px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #e7ecff;
  box-shadow: 0 0 22px 7px rgba(116, 143, 255, .64);
  content: "";
  transform: translateY(-50%);
}
.energy-rail span {
  position: absolute;
  top: -1px;
  left: 0;
  width: 22%;
  height: 3px;
  background: #cbd5ff;
  box-shadow: 0 0 22px rgba(111, 139, 255, .8);
  opacity: 0;
  will-change: transform, opacity;
}
.energy-rail-top { top: 20%; transform: rotate(15deg); }
.energy-rail-middle { top: 49%; transform: rotate(0deg); }
.energy-rail-bottom { top: 79%; transform: rotate(-15deg); }
.scene-instruction {
  position: absolute;
  right: 0;
  bottom: 0;
  display: flex;
  gap: 16px;
  margin: 0;
  color: #656a7a;
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.scene-instruction strong { color: #dfe5ff; font-weight: 700; }
.phone-scene.is-holding .scene-instruction strong { color: #9fb2ff; }

.info-grid { padding: 0 0 20px; }
.info-panel, .faq-section { border: 1px solid rgba(255,255,255,.08); border-radius: 18px; background: var(--surface); }
.info-panel { padding: clamp(24px, 3vw, 38px); }
.qr-panel { display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: center; min-height: 164px; }
.panel-kicker { margin-bottom: 10px; color: #74747c; }
.info-panel h2, .section-heading h2 { margin: 0; color: #f5f5f6; font-size: clamp(26px, 2.6vw, 36px); line-height: 1.2; font-weight: 820; letter-spacing: -.035em; }
.qr-link { display: inline-flex; align-items: center; justify-content: center; min-height: 38px; margin-top: 16px; padding: 0 17px; border: 1px solid rgba(255,255,255,.14); border-radius: 999px; color: #dedee1; font-size: 13px; font-weight: 740; }
.qr-link:hover, .qr-link:focus-visible { border-color: rgba(255,255,255,.26); background: rgba(255,255,255,.05); }
.qr-card { position: relative; display: grid; place-items: center; width: 116px; aspect-ratio: 1; padding: 8px; border-radius: 12px; background: #fff; }
.qr-image { display: block; width: 100%; height: 100%; object-fit: contain; }
.qr-logo { position: absolute; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 7px; background: #fff; }
.qr-logo img { width: 19px; height: 19px; object-fit: contain; }
.faq-section { margin: 18px 0 72px; padding: clamp(28px, 3.5vw, 44px); }
.section-heading { margin-bottom: 26px; }
.faq-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.faq-item { min-height: 170px; padding: 22px; border-top: 1px solid rgba(255,255,255,.07); }
.faq-item h3 { margin: 0; color: #d5d5d9; font-size: 15px; line-height: 1.45; font-weight: 780; }
.faq-item p { margin: 13px 0 0; color: #85858e; font-size: 14px; line-height: 1.7; }
:focus-visible { outline: 2px solid rgba(221,228,244,.92); outline-offset: 3px; }

@media (max-width: 1120px) {
  .page-shell { width: min(100% - 48px, 1280px); }
  .hero { grid-template-columns: minmax(420px, .92fr) minmax(460px, 1.08fr); gap: 18px; }
  .black-hole { left: -610px; }
  .phone-wrap { right: 2px; }
}

@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; gap: 6px; padding-top: 66px; }
  .hero-copy { max-width: 720px; }
  .hero-visual { min-height: 640px; }
  .visual-stage { width: min(100%, 650px); height: 640px; margin: 0 auto; }
  .black-hole { left: -460px; }
  .phone-wrap { right: 68px; }
  .app-icon-float { right: 24px; }
  .faq-list { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 700px) {
  .page-shell { width: min(100% - 28px, 1280px); }
  .site-header { min-height: 64px; }
  .brand-wordmark { width: 145px; }
  .nav-link { display: none; }
  .lang-toggle { grid-template-columns: repeat(2, 40px); }
  .lang-button { height: 30px; }
  .hero { gap: 0; min-height: auto; padding: 44px 0 54px; }
  h1 { font-size: clamp(40px, 12vw, 56px); }
  .slogan { margin-top: 22px; font-size: clamp(23px, 7vw, 30px); }
  .intro { font-size: 15px; line-height: 1.76; }
  .cta-row { margin-top: 28px; }
  .primary-cta { width: 100%; }
  .platforms { justify-content: center; gap: 16px; }
  .hero-visual { min-height: 560px; margin-top: 14px; }
  .visual-stage { height: 560px; }
  .black-hole { top: 0; left: 50%; width: 850px; transform: translateX(-50%); opacity: .3; }
  .black-hole-reveal { --lens-x: 50%; --lens-y: 47%; --lens-r: 20%; }
  .spectral-copy-reveal { --lens-x: 50%; --lens-y: 50%; --lens-r: 24%; }
  .spectral-word { top: 236px; left: 50%; font-size: 68px; transform: translateX(-50%); }
  .research-terms { top: 150px; left: 8px; font-size: 8px; }
  .phone-wrap { top: 6px; right: 50%; transform: translateX(50%); }
  .phone-frame { width: 246px; border-radius: 40px; }
  .phone-frame::after { border-radius: 35px; }
  .phone-screen { border-radius: 31px; }
  .phone-statusbar { flex-basis: 30px; padding: 0 9px; font-size: 7px; }
  .phone-dynamic-island { top: 5px; width: 62px; height: 19px; }
  .app-screen-preview { border-radius: 27px; }
  .phone-homebar { flex-basis: 17px; }
  .phone-homebar span { width: 66px; }
  .app-icon-float { right: calc(50% - 156px); bottom: 18px; width: 88px; border-radius: 22px; }
  .qr-panel { grid-template-columns: 1fr; }
  .qr-card { display: none; }
  .faq-list { grid-template-columns: 1fr; }
  .faq-item { min-height: auto; }
}

/* WebGL deep-mode direction ------------------------------------------------ */
:root {
  --deep-0: #050608;
  --deep-1: #090b0f;
  --silver-0: #f4f6fa;
  --silver-1: #a7adb8;
  --silver-2: #555c68;
  --hairline: rgba(221, 227, 238, .11);
}

html { background: var(--deep-0); }
body {
  position: relative;
  background:
    radial-gradient(circle at 73% 48%, rgba(68, 77, 96, .09), transparent 35%),
    linear-gradient(120deg, #0b1117 0%, #0d141b 55%, #080d12 100%);
  color: var(--silver-0);
  font-family: "Inter Variable", "SF Pro Display", "Segoe UI Variable Display", "MiSans VF", "PingFang SC", sans-serif;
  font-variation-settings: "wght" 460, "opsz" 32;
}
body::before {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  opacity: .026;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.88' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.72'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}
.page-shell { position: relative; z-index: 1; }
.site-header {
  min-height: 92px;
  padding: 0 clamp(36px, 4.2vw, 72px);
  border-bottom-color: rgba(255,255,255,.07);
}
.brand-wordmark { width: clamp(172px, 11vw, 224px); }
.nav-actions { gap: 14px; }
.lang-toggle,
.nav-link { border-color: rgba(255,255,255,.11); background: rgba(255,255,255,.018); backdrop-filter: blur(16px); }
.lang-button.is-active { background: rgba(229,234,244,.12); }

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(560px, 46%) 1fr;
  min-height: calc(100svh - 92px);
  padding: 0 clamp(36px, 5.2vw, 106px);
  overflow: hidden;
  isolation: isolate;
}
.hero-copy {
  z-index: 6;
  align-self: center;
  width: min(720px, 100%);
  max-width: 720px;
  padding: 0;
  transform: translateY(-1.5%);
}
.eyebrow {
  min-height: 32px;
  margin-bottom: 25px;
  padding: 0 13px;
  border-color: rgba(220,226,238,.14);
  background: rgba(220,226,238,.035);
  color: #aeb4bf;
  font-size: 11px;
  font-variation-settings: "wght" 680;
  letter-spacing: .115em;
}
.hero-copy h1 {
  max-width: 720px;
  font-size: clamp(60px, 4.4vw, 90px);
  line-height: .98;
  font-variation-settings: "wght" 760, "opsz" 52;
  font-weight: 760;
  letter-spacing: -.061em;
  text-wrap: balance;
}
.hero-copy h1 span { display: inline-block; will-change: transform, opacity; }
.slogan {
  margin-top: 30px;
  color: #e9ebf0;
  font-size: clamp(23px, 1.55vw, 31px);
  font-variation-settings: "wght" 625;
}
.hero-copy .intro {
  max-width: 650px;
  margin-top: 17px;
  color: #9399a5;
  font-size: clamp(15px, .98vw, 18px);
  line-height: 1.78;
  font-variation-settings: "wght" 430;
  letter-spacing: .005em;
}
.cta-row { margin-top: 30px; }
.primary-cta {
  min-height: 56px;
  padding: 0 27px;
  border: 1px solid rgba(255,255,255,.78);
  background: #f0f2f6;
  color: #090a0d;
  box-shadow: 0 18px 50px rgba(0,0,0,.34), 0 0 0 1px rgba(255,255,255,.06);
  font-variation-settings: "wght" 690;
}
.primary-cta:hover { transform: translateY(-2px); box-shadow: 0 22px 60px rgba(0,0,0,.46), 0 0 30px rgba(206,216,235,.08); }
.platforms { margin-top: 28px; }

.hero-visual.webgl-hero {
  position: absolute;
  inset: 0 0 0 auto;
  z-index: 2;
  width: 61%;
  min-height: 100%;
  overflow: hidden;
  pointer-events: none;
}
.fluid-hero-canvas {
  display: block;
  width: 100%;
  height: 100%;
  filter: saturate(.78) contrast(1.08);
}
.webgl-fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  opacity: 1;
  transition: opacity .5s ease;
}
.webgl-ready .webgl-fallback { opacity: 0; }
.fallback-phone {
  position: relative;
  width: min(370px, 46%);
  aspect-ratio: .5;
  overflow: hidden;
  padding: 9px;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 54px;
  background: #12151b;
  box-shadow: 0 50px 120px rgba(0,0,0,.68);
  transform: rotate(5deg);
}
.fallback-phone > img:first-child { width: 100%; height: 100%; border-radius: 44px; object-fit: cover; filter: invert(.9) brightness(.22) contrast(1.25); }
.fallback-sone { position: absolute; top: 42%; left: 50%; width: 86px; border-radius: 24px; transform: translate(-50%,-50%); }
.field-caption {
  position: absolute;
  right: clamp(30px, 4vw, 78px);
  bottom: 30px;
  display: flex;
  gap: 22px;
  margin: 0;
  color: rgba(206,214,228,.37);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  letter-spacing: .2em;
}
.field-caption span + span::before { margin-right: 22px; color: rgba(255,255,255,.16); content: "—"; }

@media (max-width: 1100px) {
  .site-header { min-height: 82px; padding: 0 32px; }
  .hero { grid-template-columns: minmax(460px, 48%) 1fr; min-height: calc(100svh - 82px); padding: 0 32px; }
  .hero-copy h1 { font-size: clamp(50px, 5.4vw, 64px); }
  .hero-visual.webgl-hero { width: 58%; }
}

@media (max-width: 700px) {
  .site-header { min-height: 64px; padding: 0 18px; }
  .brand-wordmark { width: 154px; transform: none; }
  .hero {
    display: grid;
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 54px 0 0;
    overflow: hidden;
  }
  .hero-copy { width: 100%; max-width: none; padding: 0 24px; transform: none; }
  .eyebrow { margin-bottom: 20px; font-size: 9px; }
  .hero-copy h1 { max-width: 345px; font-size: clamp(35px, 9.7vw, 42px); line-height: 1; }
  .slogan { margin-top: 23px; font-size: 24px; }
  .hero-copy .intro { width: 100%; max-width: calc(100vw - 48px); padding-right: 8px; box-sizing: border-box; font-size: 14px; line-height: 1.72; }
  .primary-cta { width: auto; min-height: 52px; }
  .hero-visual.webgl-hero { position: relative; inset: auto; width: 100%; height: 590px; min-height: 590px; margin-top: 24px; }
  .field-caption { display: none; }
}

@media (max-width: 390px) {
  .page-shell { width: min(100% - 22px, 1280px); }
  .brand-wordmark { width: 135px; }
  .eyebrow { font-size: 10px; }
  .platforms { justify-content: flex-start; }
  .hero-visual { min-height: 530px; }
  .visual-stage { height: 530px; }
  .phone-frame { width: 230px; }
  .app-icon-float { right: calc(50% - 145px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; scroll-behavior: auto !important; transition: none !important; }
}

@media (max-width: 700px) {
  .visual-stage { perspective-origin: 50% 46%; }
  .visual-stage::before { inset: -40px -250px; background-size: 820px auto; opacity: .11; }
  .phone-rig { width: 236px; }
  .phone-scene .app-icon-float { right: -30px; bottom: 16px; width: 82px; border-radius: 21px; }
  .phone-depth { border-radius: 40px; }
  .phone-depth-mid img { border-radius: 30px; }
  .scene-type { top: 33%; left: -8%; font-size: 58px; }
  .scene-type span:last-child { margin-left: 48px; }
  .energy-rail { left: -58%; width: 125%; }
  .energy-rail-top { top: 24%; }
  .energy-rail-bottom { top: 75%; }
  .scene-instruction { right: 4px; bottom: 4px; gap: 10px; font-size: 8px; }
}

/* GrabGains visual system translated to ScienceOne assets and monochrome color. */
.site-header { min-height: 104px; }
.hero {
  min-height: calc(100svh - 104px);
  padding-top: clamp(46px, 6vh, 76px);
  padding-bottom: clamp(56px, 7vh, 86px);
}
.hero-copy { z-index: 12; }
.hero-visual { min-height: 650px; }
.visual-stage { height: 650px; perspective: 1300px; perspective-origin: 68% 46%; }
.visual-stage::before { display: none; }
.hero-orbit-bg {
  position: absolute;
  top: -130px;
  right: -360px;
  z-index: 0;
  width: 1120px;
  opacity: .24;
  transform: rotate(-7deg);
  pointer-events: none;
  will-change: transform, opacity;
}
.hero-orbit-bg img { display: block; width: 100%; }
.device-cluster {
  position: absolute;
  inset: 0;
  z-index: 4;
  transform-style: preserve-3d;
  pointer-events: none;
  will-change: transform;
}
.hero-device {
  position: absolute;
  overflow: visible;
  padding: 10px;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 50px;
  background: #1b1d23;
  box-shadow: 0 55px 120px rgba(0,0,0,.72), inset 0 1px 0 rgba(255,255,255,.2), 0 0 0 4px rgba(255,255,255,.025);
  transform-style: preserve-3d;
  will-change: transform, opacity;
}
.hero-device-screen {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 39px;
  background: #f7f7f7;
}
.hero-device-screen > img { display: block; width: 100%; height: 100%; object-fit: cover; }
.hero-device-main {
  right: -12px;
  bottom: -172px;
  z-index: 8;
  width: 388px;
  aspect-ratio: .498;
  transform: rotate(-10deg) translateZ(110px);
}
.hero-device-back {
  top: -154px;
  right: -170px;
  z-index: 2;
  width: 390px;
  aspect-ratio: .498;
  opacity: .82;
  transform: rotate(-12deg) translateZ(-120px);
}
.hero-device-landscape {
  top: 262px;
  right: 128px;
  z-index: 5;
  width: 530px;
  height: 256px;
  border-radius: 46px;
  transform: rotate(2deg) translateZ(-18px);
}
.hero-device-landscape .hero-device-screen { border-radius: 35px; }
.hero-device-landscape img { object-position: 50% 58%; transform: rotate(90deg) scale(1.92); }
.hero-device-main .app-icon-float {
  right: -34px;
  bottom: 152px;
  z-index: 12;
  width: 108px;
  transform: translateZ(130px) rotate(8deg);
}
.device-labels {
  position: absolute;
  top: 230px;
  right: -48px;
  z-index: 10;
  display: grid;
  gap: 54px;
  color: rgba(255,255,255,.9);
  font-size: 16px;
  font-weight: 850;
  letter-spacing: -.02em;
  transform: rotate(-8deg) translateZ(170px);
  will-change: transform, opacity;
}
.device-glass-band {
  position: absolute;
  top: 372px;
  right: -68px;
  z-index: 11;
  width: 720px;
  height: 36px;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,.24);
  border-bottom: 1px solid rgba(255,255,255,.09);
  background: rgba(226,232,245,.07);
  box-shadow: 0 0 28px rgba(213,220,238,.1);
  color: rgba(255,255,255,.62);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .18em;
  line-height: 34px;
  text-align: center;
  transform: rotate(12deg) translateZ(210px);
  backdrop-filter: blur(5px);
  will-change: transform, opacity;
}

@media (max-width: 920px) {
  .site-header { min-height: 88px; }
  .hero { min-height: auto; }
  .hero-visual { min-height: 620px; }
  .visual-stage { height: 620px; }
  .hero-device-main { right: 88px; }
  .hero-device-back { right: -42px; }
  .hero-device-landscape { right: 230px; }
  .device-labels { right: 52px; }
  .device-glass-band { right: 10px; }
}

@media (max-width: 700px) {
  .site-header { min-height: 64px; }
  .hero { padding-top: 44px; }
  .hero-visual { min-height: 570px; margin-top: 18px; }
  .visual-stage { height: 570px; perspective-origin: 55% 48%; }
  .hero-orbit-bg { top: -30px; right: -280px; width: 720px; opacity: .2; }
  .hero-device-main { right: 34px; bottom: -104px; width: 272px; padding: 7px; border-radius: 39px; }
  .hero-device-back { top: -64px; right: -78px; width: 260px; padding: 7px; border-radius: 38px; }
  .hero-device-landscape { top: 218px; right: 104px; width: 362px; height: 176px; padding: 7px; border-radius: 34px; }
  .hero-device-screen { border-radius: 30px; }
  .hero-device-landscape .hero-device-screen { border-radius: 26px; }
  .hero-device-main .app-icon-float { right: -22px; bottom: 98px; width: 78px; border-radius: 20px; }
  .device-labels { top: 188px; right: 10px; gap: 38px; font-size: 11px; }
  .device-glass-band { top: 322px; right: -96px; width: 520px; height: 28px; font-size: 9px; line-height: 26px; }
}

/* Screenshot-matched GrabGains composition. */
.page-shell { width: 100%; max-width: none; }
.site-header {
  min-height: 172px;
  padding: 0 clamp(28px, 4.25vw, 88px);
}
.brand-wordmark { width: clamp(180px, 13.2vw, 270px); }
.hero {
  grid-template-columns: minmax(620px, 44%) 1fr;
  min-height: calc(100svh - 172px);
  padding: 0 clamp(28px, 4.25vw, 88px);
  overflow: hidden;
}
.hero-copy { max-width: 800px; align-self: center; transform: translateY(-15%); }
.hero-copy h1 { font-size: clamp(60px, 4.25vw, 87px); line-height: .98; }
.hero-copy .intro { max-width: 690px; font-size: clamp(16px, 1.03vw, 21px); line-height: 1.65; }
.hero-visual { position: absolute; inset: 0; z-index: 2; min-height: 100%; pointer-events: none; }
.visual-stage { width: 100%; height: 100%; min-height: 100%; perspective: 1600px; perspective-origin: 72% 42%; }
.hero-orbit-bg { top: -90px; right: -250px; width: min(1200px, 66vw); opacity: .11; }
.hero-device-landscape,
.device-labels,
.device-glass-band { display: none; }
.hero-device-main {
  top: 28%;
  right: auto;
  bottom: auto;
  left: 43.5%;
  width: clamp(460px, 34vw, 696px);
  transform: rotate(12deg) translateZ(100px);
}
.hero-device-back {
  top: -4%;
  right: auto;
  left: 55.5%;
  width: clamp(440px, 31vw, 635px);
  opacity: .72;
  transform: rotate(-9deg) translateZ(-100px);
}
.hero-device-main .app-icon-float { right: -24px; bottom: 150px; }
.info-grid,
.faq-section { width: min(1280px, calc(100% - 72px)); margin-right: auto; margin-left: auto; }

@media (max-width: 1100px) {
  .site-header { min-height: 104px; padding: 0 32px; }
  .hero { grid-template-columns: minmax(460px, 46%) 1fr; min-height: calc(100svh - 104px); padding: 0 32px; }
  .hero-copy h1 { font-size: clamp(48px, 5vw, 62px); }
  .hero-device-main { left: 49%; width: 44vw; }
  .hero-device-back { left: 61%; width: 44vw; }
}

@media (max-width: 700px) {
  .site-header { min-height: 64px; padding: 0; }
  .hero { display: grid; grid-template-columns: 1fr; min-height: auto; padding: 44px 0 54px; overflow: hidden; }
  .hero-copy { box-sizing: border-box; width: 100%; padding: 0 24px; transform: none; }
  .hero-copy h1 { font-size: clamp(34px, 9.5vw, 40px); letter-spacing: -.06em; }
  .hero-copy .intro { font-size: 15px; }
  .hero-visual { position: relative; inset: auto; min-height: 570px; }
  .visual-stage { height: 570px; min-height: 570px; perspective: 1000px; }
  .hero-orbit-bg { top: -10px; right: -260px; width: 700px; }
  .hero-device-main { top: 25%; left: 3%; width: 76vw; }
  .hero-device-back { top: -7%; left: 38%; width: 72vw; }
  .hero-device-main .app-icon-float { right: -18px; bottom: 88px; }
  .info-grid,
  .faq-section { width: 100%; }
}

/* Final WebGL cascade: overrides retired device-composition rules above. */
.site-header { min-height: 106px; padding: 0 clamp(36px, 5.2vw, 106px); }
.brand-wordmark { width: clamp(172px, 11vw, 224px); }
.brand-wordmark { transform: translateX(-14px); }
.hero {
  grid-template-columns: minmax(560px, 46%) 1fr;
  min-height: calc(100svh - 106px);
  padding: 0 clamp(36px, 4.2vw, 72px);
}
.hero-copy { width: min(730px, 100%); max-width: 730px; padding: 0; transform: translateY(-8.5%); }
.hero-copy h1 { max-width: 730px; font-size: clamp(60px, 4.5vw, 92px); line-height: .98; }
.hero-copy .intro { max-width: 650px; font-size: clamp(15px, .98vw, 18px); line-height: 1.78; }
.hero-visual.webgl-hero { position: absolute; inset: 0; width: 100%; min-height: 100%; margin: 0; }

@media (max-width: 1100px) {
  .site-header { min-height: 82px; padding: 0 32px; }
  .hero { grid-template-columns: minmax(460px, 48%) 1fr; min-height: calc(100svh - 82px); padding: 0 32px; }
  .hero-copy h1 { font-size: clamp(50px, 5.4vw, 64px); }
  .hero-visual.webgl-hero { width: 58%; }
}

@media (max-width: 700px) {
  .site-header { min-height: 64px; padding: 0 18px; }
  .brand-wordmark { width: 154px; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding: 54px 0 0; }
  .hero-copy { width: 100%; max-width: none; padding: 0 24px; transform: none; }
  .hero-copy h1 { max-width: 345px; font-size: clamp(35px, 9.7vw, 42px); line-height: 1; }
  .hero-copy .intro { width: 100%; max-width: calc(100vw - 56px); box-sizing: border-box; font-size: 14px; line-height: 1.72; }
  .hero-visual.webgl-hero { position: relative; inset: auto; width: 100%; height: 590px; min-height: 590px; margin-top: 24px; }
}

@media (min-width: 701px) and (max-width: 860px) {
  .site-header { min-height: 72px; padding: 0 26px; }
  .brand-wordmark { width: 166px; transform: none; }
  .hero { display: grid; grid-template-columns: 1fr; min-height: auto; padding: 62px 0 0; }
  .hero-copy { width: 100%; max-width: 680px; padding: 0 34px; transform: none; }
  .hero-copy h1 { max-width: 600px; font-size: clamp(48px, 7.2vw, 60px); }
  .hero-copy .intro { max-width: 610px; }
  .hero-visual.webgl-hero { position: relative; inset: auto; width: 100%; height: 680px; min-height: 680px; margin-top: 10px; }
}

/* Restored gravity-lens composition ------------------------------------- */
html { background: #020203; }
body {
  background: #050506;
  color: var(--text);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-variation-settings: normal;
}
body::before { display: none; }
.page-shell { width: min(1280px, calc(100% - 72px)); max-width: none; margin: 0 auto; }
.site-header {
  min-height: 76px;
  padding: 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.brand-wordmark { width: clamp(164px, 14vw, 205px); transform: none; }
.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(470px, .94fr) minmax(540px, 1.06fr);
  gap: clamp(26px, 4vw, 64px);
  align-items: center;
  min-height: calc(100svh - 76px);
  padding: clamp(62px, 8vh, 100px) 0 clamp(70px, 9vh, 112px);
  overflow: visible;
}
.hero-copy {
  align-self: auto;
  width: auto;
  max-width: 640px;
  padding: 0;
  transform: none;
}
.hero-copy h1 {
  max-width: none;
  font-size: clamp(50px, 5.15vw, 70px);
  line-height: 1.08;
  font-weight: 890;
  font-variation-settings: normal;
  letter-spacing: -.052em;
}
.slogan {
  margin-top: 28px;
  font-size: clamp(24px, 2.35vw, 32px);
  font-weight: 760;
  font-variation-settings: normal;
}
.hero-copy .intro {
  width: auto;
  max-width: 620px;
  margin-top: 18px;
  padding: 0;
  color: #a5a5ab;
  font-size: 16px;
  line-height: 1.82;
  font-variation-settings: normal;
}
.cta-row { margin-top: 34px; }
.primary-cta {
  min-height: 54px;
  padding: 0 27px;
  border-color: rgba(255,255,255,.82);
  color: #fff;
  background: transparent;
  box-shadow: none;
}
.primary-cta:hover,
.primary-cta:focus-visible {
  color: #fff;
  background: rgba(255,255,255,.06);
  box-shadow: 0 0 0 1px rgba(255,255,255,.08), 0 16px 42px rgba(0,0,0,.32);
}
.primary-cta .cta-icon { filter: brightness(0) invert(1); }
.platforms { margin-top: 28px; }
.hero-visual {
  position: relative;
  inset: auto;
  z-index: 2;
  width: auto;
  min-height: 660px;
  margin: 0;
  overflow: visible;
  pointer-events: auto;
}
.visual-stage {
  position: relative;
  width: 100%;
  height: 660px;
  min-height: 0;
  perspective: none;
  isolation: isolate;
}
.visual-stage::before { display: none; }
.info-grid,
.faq-section { width: auto; margin-right: 0; margin-left: 0; }

@media (max-width: 1120px) {
  .page-shell { width: min(100% - 48px, 1280px); }
  .site-header { min-height: 76px; padding: 0; }
  .hero {
    grid-template-columns: minmax(420px, .92fr) minmax(460px, 1.08fr);
    gap: 18px;
    min-height: calc(100svh - 76px);
    padding: clamp(62px, 8vh, 100px) 0 clamp(70px, 9vh, 112px);
  }
  .hero-copy h1 { font-size: clamp(50px, 5.15vw, 70px); }
  .black-hole { left: -610px; }
  .phone-wrap { right: 2px; }
}

@media (max-width: 920px) {
  .site-header { min-height: 76px; padding: 0; }
  .hero {
    grid-template-columns: 1fr;
    gap: 6px;
    min-height: auto;
    padding: 66px 0 clamp(70px, 9vh, 112px);
  }
  .hero-copy { max-width: 720px; padding: 0; }
  .hero-visual { min-height: 640px; }
  .visual-stage { width: min(100%, 650px); height: 640px; margin: 0 auto; }
  .black-hole { left: -460px; }
  .phone-wrap { right: 68px; }
  .app-icon-float { right: 24px; }
}

@media (max-width: 700px) {
  .page-shell { width: min(100% - 28px, 1280px); }
  .site-header { min-height: 64px; padding: 0; }
  .brand-wordmark { width: 145px; }
  .hero { gap: 0; min-height: auto; padding: 44px 0 54px; }
  .hero-copy { width: auto; max-width: 720px; padding: 0; }
  .hero-copy h1 { max-width: none; font-size: clamp(40px, 12vw, 56px); line-height: 1.08; }
  .slogan { margin-top: 22px; font-size: clamp(23px, 7vw, 30px); }
  .hero-copy .intro { width: auto; max-width: 620px; padding: 0; font-size: 15px; line-height: 1.76; }
  .cta-row { margin-top: 28px; }
  .primary-cta { width: 100%; }
  .platforms { justify-content: center; gap: 16px; }
  .hero-visual { min-height: 560px; margin-top: 14px; }
  .visual-stage { height: 560px; min-height: 0; perspective: none; }
}

.feature-float {
  position: absolute;
  z-index: 9;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 82px;
  padding: 17px 20px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 15px;
  color: #f5f5f7;
  background: linear-gradient(145deg, rgba(24,25,30,.93), rgba(11,12,15,.86));
  box-shadow: 0 24px 58px rgba(0,0,0,.52), inset 0 1px 0 rgba(255,255,255,.055);
  backdrop-filter: blur(18px);
  pointer-events: none;
  will-change: transform, opacity;
}
.feature-float strong {
  display: block;
  color: #f3f3f5;
  font-size: 21px;
  line-height: 1.08;
  font-weight: 820;
  letter-spacing: -.025em;
  white-space: nowrap;
}
.feature-float span {
  display: block;
  margin-top: 8px;
  color: #8f9098;
  font-size: 12px;
  line-height: 1.25;
  font-weight: 650;
  white-space: nowrap;
}
.feature-float-app {
  top: 46px;
  left: 4px;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 14px;
  width: 238px;
  min-height: 80px;
  padding: 14px 17px;
}
.feature-float-app img {
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 12px;
  object-fit: cover;
}
.feature-float-app strong {
  color: #9a9ba3;
  font-size: 10px;
  letter-spacing: .16em;
}
.feature-float-app span { margin-top: 7px; color: #e7e7ea; font-size: 13px; }
.feature-float-literature { top: 230px; left: -62px; width: 158px; }
.feature-float-sync { top: 148px; right: -92px; width: 174px; min-height: 98px; }
.feature-float-research { bottom: 38px; left: -22px; width: 176px; min-height: 100px; }
.feature-float-skills { right: -78px; bottom: 80px; width: 164px; min-height: 96px; }

@media (max-width: 1120px) {
  .feature-float-app { left: -18px; }
  .feature-float-literature { left: -38px; }
  .feature-float-sync { right: -28px; }
  .feature-float-research { left: -12px; }
  .feature-float-skills { right: -20px; }
}

@media (max-width: 920px) {
  .feature-float-app { left: 4px; }
  .feature-float-literature { left: -18px; }
  .feature-float-sync { right: 2px; }
  .feature-float-research { left: 2px; }
  .feature-float-skills { right: 0; }
}

@media (max-width: 700px) {
  .feature-float { padding: 12px 14px; border-radius: 13px; }
  .feature-float strong { font-size: 17px; }
  .feature-float span { margin-top: 6px; font-size: 10px; }
  .feature-float-app { top: 14px; left: -4px; width: 198px; min-height: 66px; gap: 10px; padding: 10px 12px; }
  .feature-float-app img { width: 38px; height: 38px; border-radius: 10px; }
  .feature-float-app strong { font-size: 8px; }
  .feature-float-app span { margin-top: 5px; font-size: 11px; }
  .feature-float-literature { top: 192px; left: -6px; width: 118px; min-height: 72px; }
  .feature-float-sync { top: 118px; right: -5px; width: 132px; min-height: 78px; }
  .feature-float-research { bottom: 18px; left: -3px; width: 137px; min-height: 80px; }
  .feature-float-skills { right: -5px; bottom: 44px; width: 126px; min-height: 76px; }
}

/* The five proof cards share the phone as their positioning frame. */
.feature-orbit {
  position: absolute;
  top: 18px;
  right: 26px;
  z-index: 9;
  width: 300px;
  aspect-ratio: .46;
  pointer-events: none;
}
.feature-orbit .feature-float-app { top: -64px; right: auto; bottom: auto; left: -128px; }
.feature-orbit .feature-float-literature { top: 210px; right: auto; bottom: auto; left: -124px; }
.feature-orbit .feature-float-sync { top: 118px; right: auto; bottom: auto; left: 268px; }
.feature-orbit .feature-float-research { top: auto; right: auto; bottom: 20px; left: -139px; }
.feature-orbit .feature-float-skills { top: auto; right: auto; bottom: 72px; left: 268px; }

@media (max-width: 1120px) {
  .feature-orbit { right: 2px; }
}

@media (max-width: 920px) {
  .feature-orbit { right: 68px; }
}

@media (max-width: 700px) {
  .feature-orbit {
    top: 6px;
    right: 50%;
    width: 246px;
    transform: translateX(50%);
  }
  .feature-orbit .feature-float-app { top: -8px; left: -54px; }
  .feature-orbit .feature-float-literature { top: 176px; left: -62px; }
  .feature-orbit .feature-float-sync { top: 104px; left: 166px; }
  .feature-orbit .feature-float-research { bottom: 10px; left: -46px; }
  .feature-orbit .feature-float-skills { bottom: 34px; left: 168px; }
}

/* Keep the phone and its right-side proof cards inside the viewport together. */
@media (min-width: 921px) {
  .phone-wrap,
  .feature-orbit {
    right: max(26px, calc(184px - max(24px, (100vw - 1280px) / 2)));
  }
}

/* English proof copy needs more room without moving the card's right edge. */
html[data-language="en"] .feature-float-sync {
  width: 196px;
}
html[data-language="en"] .feature-orbit .feature-float-sync {
  left: 246px;
}
html[data-language="en"] .feature-float-sync strong {
  font-size: 19px;
  letter-spacing: -.035em;
}
html[data-language="en"] .feature-float-sync span {
  font-size: 11px;
}

@media (max-width: 700px) {
  html[data-language="en"] .feature-float-sync {
    width: 152px;
  }
  html[data-language="en"] .feature-orbit .feature-float-sync {
    left: 146px;
  }
  html[data-language="en"] .feature-float-sync strong {
    font-size: 15px;
  }
  html[data-language="en"] .feature-float-sync span {
    font-size: 9px;
  }
}

/* Mobile: keep the phone and all proof cards on one centered coordinate system. */
@media (max-width: 700px) {
  .hero-visual {
    min-height: 620px;
    margin-top: 28px;
  }
  .visual-stage {
    width: 100%;
    height: 620px;
    margin-inline: auto;
  }
  .phone-wrap,
  .feature-orbit {
    top: 52px;
    right: auto;
    left: 50%;
    transform: translateX(-50%);
  }
}

@media (max-width: 380px) {
  .hero-visual {
    min-height: 590px;
  }
  .visual-stage {
    height: 590px;
  }
  .phone-wrap,
  .feature-orbit {
    top: 44px;
  }
  .phone-frame,
  .feature-orbit {
    width: 220px;
  }
  .feature-orbit .feature-float-app {
    top: -6px;
    left: -44px;
    width: 182px;
  }
  .feature-orbit .feature-float-literature {
    top: 160px;
    left: -48px;
    width: 110px;
  }
  .feature-orbit .feature-float-sync {
    top: 96px;
    left: 128px;
    width: 126px;
  }
  .feature-orbit .feature-float-research {
    bottom: 12px;
    left: -38px;
    width: 128px;
  }
  .feature-orbit .feature-float-skills {
    right: auto;
    bottom: 34px;
    left: 130px;
    width: 118px;
  }
  html[data-language="en"] .feature-orbit .feature-float-sync {
    left: 114px;
    width: 140px;
  }
}

/* Mobile header keeps both language controls and the website return action. */
@media (max-width: 700px) {
  .nav-actions {
    gap: 8px;
  }
  .nav-link {
    display: inline-flex;
    min-height: 38px;
    padding: 0 12px;
    border-radius: 8px;
    font-size: 12px;
    white-space: nowrap;
  }
}

@media (max-width: 380px) {
  .brand-wordmark {
    width: 132px;
  }
  .lang-toggle {
    grid-template-columns: repeat(2, 34px);
  }
  .nav-link {
    min-height: 36px;
    padding: 0 10px;
    font-size: 11px;
  }
  html[data-language="en"] .brand-wordmark {
    width: 112px;
  }
  html[data-language="en"] .lang-toggle {
    grid-template-columns: repeat(2, 30px);
    padding: 2px;
  }
  html[data-language="en"] .lang-button {
    height: 30px;
    font-size: 11px;
  }
  html[data-language="en"] .nav-link {
    padding: 0 7px;
    font-size: 10px;
  }
}

/* Give the longer English research copy a comfortable right inset. */
html[data-language="en"] .feature-float-research {
  width: 214px;
  padding-right: 24px;
}
html[data-language="en"] .feature-orbit .feature-float-research {
  left: -177px;
}

@media (max-width: 700px) {
  html[data-language="en"] .feature-float-research {
    width: 156px;
    padding-right: 18px;
  }
  html[data-language="en"] .feature-orbit .feature-float-research {
    left: -65px;
  }
}

@media (max-width: 380px) {
  html[data-language="en"] .feature-float-research {
    width: 140px;
    padding-right: 14px;
  }
  html[data-language="en"] .feature-orbit .feature-float-research {
    left: -50px;
  }
  html[data-language="en"] .feature-float-research strong {
    font-size: 16px;
  }
  html[data-language="en"] .feature-float-research span {
    font-size: 9px;
  }
}