:root {
  --color-primary: #0ff;
  --color-accent: #ff2daa;
  --color-background: #0b0e12;
  --color-background-deep: #07090d;
  --color-surface: #131924;
  --color-surface-soft: #10151d;
  --color-text: #fbfcff;
  --color-text-muted: #b7bdc8;
  --color-border: #354452;
  --shadow-primary: 0 0.75rem 2rem rgba(255, 45, 170, 0.18);
  --radius-card: 0.375rem;
  --radius-control: 0.25rem;
  --page-width: 80rem;
  --header-height: 4rem;
  --module-gap: clamp(6rem, 12vw, 11rem);
  --module-edge-space: clamp(3rem, 6vw, 5.5rem);
  --transition: 180ms ease;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  color-scheme: dark;
}
body {
  margin: 0;
  min-width: 20rem;
  overflow-x: hidden;
  background: var(--color-background);
  color: var(--color-text);
  font-family:
    "Source Han Sans SC", "Source Han Sans CN", "Noto Sans CJK SC",
    "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  display: block;
  max-width: 100%;
}
h1,
h2,
h3,
p,
figure,
ul {
  margin-top: 0;
}
h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}
.container {
  width: min(var(--page-width), calc(100% - 3rem));
  margin-inline: auto;
}
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 4px;
  box-shadow: 0 0 1rem rgba(0, 229, 255, 0.45);
}
.neon {
  --neon-color: currentColor;
  text-shadow:
    0 0 0.2rem var(--neon-color),
    0 0 0.65rem color-mix(in srgb, var(--neon-color) 78%, transparent),
    0 0 1.4rem color-mix(in srgb, var(--neon-color) 48%, transparent);
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  height: var(--header-height);
  border-bottom: 1px solid var(--color-border);
  background: rgba(16, 18, 22, 0.94);
  backdrop-filter: blur(0.75rem);
}
.nav-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  height: 100%;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  min-height: 2.75rem;
  color: var(--color-primary);
  font-size: 1.125rem;
  font-weight: 800;
}
.brand img {
  width: 2rem;
  height: 2rem;
  border-radius: 0.3125rem;
}
.site-nav {
  display: flex;
  justify-content: center;
  gap: clamp(1.5rem, 3vw, 2.75rem);
}
.site-nav a,
.site-footer nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  transition: color var(--transition);
}
.site-nav a:hover,
.site-footer nav a:hover {
  color: var(--color-primary);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 7.5rem;
  min-height: 3.4rem;
  padding: 0.6875rem 1.25rem;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-control);
  font-size: 0.875rem;
  font-weight: 750;
  transition:
    background-color var(--transition),
    border-color var(--transition),
    color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}
.button-primary {
  min-width: 15rem;
  padding-inline: 1.75rem;
  border-color: #fff;
  font-size: 1rem;
  background: linear-gradient(
    100deg,
    var(--color-primary) 0%,
    var(--color-accent) 100%
  );
  color: #080a0f;
  box-shadow: var(--shadow-primary);
}
.button-primary.neon {
  text-shadow: none;
  filter: drop-shadow(0 0 0.45rem rgba(0, 229, 255, 0.58))
    drop-shadow(0 0 0.55rem rgba(255, 45, 170, 0.48));
}
.button-primary:hover {
  filter: brightness(0.94);
  transform: translateY(-1px);
}
.button-primary.neon:hover {
  filter: brightness(0.94) drop-shadow(0 0 0.45rem rgba(0, 229, 255, 0.58))
    drop-shadow(0 0 0.55rem rgba(255, 45, 170, 0.48));
}
.button-secondary {
  background: rgba(16, 18, 22, 0.76);
  color: var(--color-primary);
}
.button-secondary:hover {
  background: rgba(0, 229, 255, 0.11);
}
.nav-cta {
  min-width: 7.75rem;
  min-height: 2.75rem;
  padding-block: 0.375rem;
  padding-inline: 1.25rem;
  color: #fff;
  font-size: 0.9rem;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100svh - var(--header-height));
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 42% 34% at 38% 0%,
    rgba(0, 255, 255, 0.13) 0%,
    rgba(0, 255, 255, 0.055) 38%,
    transparent 76%
  );
  pointer-events: none;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  opacity: 0.45;
  background-image:
    linear-gradient(rgba(0, 255, 255, 0.28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 255, 0.28) 1px, transparent 1px);
  background-size: 3.125rem 3.125rem;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(34rem, 1.06fr);
  align-items: center;
  gap: clamp(2.5rem, 5.5vw, 5rem);
  min-height: calc(100svh - var(--header-height));
  padding-block: clamp(2.5rem, 4vw, 4rem) clamp(7.5rem, 10vw, 9rem);
}
.hero-copy {
  position: relative;
  z-index: 2;
}
.hero-copy .section-code {
  margin-bottom: 1.75rem;
}
.section-code {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  width: fit-content;
  min-height: 2.75rem;
  margin-bottom: 1.5rem;
  padding: 0.625rem 0.875rem;
  border: 1px solid rgba(0, 229, 255, 0.62);
  border-radius: var(--radius-card);
  background: rgba(0, 229, 255, 0.07);
  color: var(--color-primary);
  font-family: Consolas, "SFMono-Regular", Monaco, monospace;
  font-size: 0.6875rem;
  font-weight: 800;
}
.section-code span {
  display: none;
}
.hero h1 {
  position: relative;
  z-index: 0;
  isolation: isolate;
  width: fit-content;
  margin-bottom: 1.5rem;
  font-size: clamp(4rem, 6vw, 5.75rem);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 0.95;
}
.hero h1.neon {
  --neon-color: var(--color-primary);

  color: var(--color-primary);
}
.hero h1::after {
  content: attr(data-text);
  position: absolute;
  z-index: -1;
  top: 0.07em;
  left: 0.055em;
  color: var(--color-accent);
  white-space: nowrap;
  text-shadow:
    0 0 0.2rem var(--color-accent),
    0 0 0.85rem rgba(255, 45, 170, 0.52);
}
.hero-tagline {
  max-width: 32rem;
  margin-bottom: 1.5rem;
  color: var(--color-text);
  font-size: clamp(1.5rem, 2.2vw, 2rem);
  font-weight: 700;
  line-height: 1.35;
}
.hero-tagline strong,
.section-heading h2 span,
.download-copy h2 span {
  color: var(--color-accent);
}
.hero-tagline strong {
  font-weight: 850;
}
.hero-summary {
  max-width: 35rem;
  margin-bottom: 0;
  color: #b5b9c1;
  font-size: 1.0625rem;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 2.25rem;
}
.hero-catalog {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin: 2.25rem 0 0;
  padding: 0;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  list-style: none;
}
.hero-catalog li {
  position: relative;
}
.hero-catalog li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -0.8125rem;
  width: 0.1875rem;
  height: 0.1875rem;
  border-radius: 50%;
  background: var(--color-accent);
}
.hero-visual {
  position: relative;
  z-index: 1;
  width: calc(100% + 5rem);
  height: clamp(30rem, calc(100svh - 17rem), 39rem);
  margin: 0 0 0 -3rem;
}
.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: brightness(1.1) saturate(1.22);
  -webkit-mask-image: radial-gradient(
    ellipse 80% 78% at 58% 50%,
    #000 58%,
    rgba(0, 0, 0, 0.82) 76%,
    transparent 100%
  );
  mask-image: radial-gradient(
    ellipse 80% 78% at 58% 50%,
    #000 58%,
    rgba(0, 0, 0, 0.82) 76%,
    transparent 100%
  );
}

@media (min-width: 52.0625rem) {
  .hero-visual img {
    -webkit-mask-image: radial-gradient(
      ellipse 74% 70% at 55% 50%,
      #000 40%,
      rgba(0, 0, 0, 0.94) 54%,
      rgba(0, 0, 0, 0.52) 73%,
      transparent 100%
    );
    mask-image: radial-gradient(
      ellipse 74% 70% at 55% 50%,
      #000 40%,
      rgba(0, 0, 0, 0.94) 54%,
      rgba(0, 0, 0, 0.52) 73%,
      transparent 100%
    );
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-size: 100% 100%;
    mask-size: 100% 100%;
  }
}
.section {
  padding-block: var(--module-edge-space);
}
.discover {
  padding-top: var(--module-gap);
}
.anchor-target {
  scroll-margin-top: calc(var(--header-height) + 3rem);
}
.section-heading {
  max-width: 46rem;
  margin-bottom: clamp(3rem, 6vw, 5rem);
  text-align: center;
}
.section-heading.align-left {
  text-align: left;
}
.discover .section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(22rem, 0.72fr);
  column-gap: clamp(3rem, 8vw, 8rem);
  align-items: end;
  max-width: none;
}
.discover .section-heading .section-code {
  grid-column: 1;
  margin-bottom: 1.5rem;
}
.discover .section-heading h2 {
  grid-column: 1;
  grid-row: 2;
  margin-bottom: 0;
}
.discover .section-heading > p:last-child {
  grid-column: 2;
  grid-row: 1 / 3;
  align-self: end;
  padding-bottom: 0.5rem;
}
.section-heading h2,
.download-copy h2 {
  margin-bottom: 1.25rem;
  font-size: clamp(2.35rem, 4.6vw, 3.2rem);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.15;
}
.section-heading > p:last-child,
.capability-intro > p,
.download-copy > p {
  max-width: 43rem;
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.category-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin: 0 0 2rem;
  padding: 0;
  border-block: 1px solid var(--color-border);
  list-style: none;
}
.category-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 4.75rem;
  padding: 0.75rem 1rem;
}
.category-list li + li {
  border-left: 1px solid var(--color-border);
}
.category-list span,
.capability-grid article > span {
  color: var(--color-primary);
  font-family: Consolas, "SFMono-Regular", Monaco, monospace;
  font-size: 0.6875rem;
  font-weight: 800;
}
.category-list strong {
  font-size: 0.9375rem;
}
.discover-showcase {
  --cover-gap: 0.75rem;
  --cover-height-offset: 6rem;
  --cover-max-height: 17rem;

  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(22rem, 48vw, 38.25rem);
  gap: 1.5rem;
  align-items: stretch;
}
.cover-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--cover-gap);
}
.cover-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}
.discover-screen {
  position: relative;
  display: grid;
  min-width: 0;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background:
    linear-gradient(rgba(0, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 255, 0.035) 1px, transparent 1px),
    var(--color-surface-soft);
  background-size: 2rem 2rem;
}
.discover-screen::before {
  content: "";
  position: absolute;
  top: 42%;
  left: 42%;
  width: 20rem;
  height: 20rem;
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 34%, rgba(0, 229, 255, 0.22), transparent 48%),
    radial-gradient(circle at 70% 70%, rgba(255, 45, 170, 0.16), transparent 52%);
  filter: blur(2.75rem);
  transform: translate(-50%, -50%);
}
.discover-screen::after {
  content: "";
  position: absolute;
  z-index: 0;
  bottom: 1.25rem;
  left: 44%;
  width: 15rem;
  height: 2.25rem;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.72);
  filter: blur(1rem);
  transform: translateX(-50%) rotate(-5deg);
}
.phone-stage {
  position: absolute;
  z-index: 1;
  inset: 0;
  perspective: 60rem;
  transform-style: preserve-3d;
}
.phone-device {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 42%;
  width: min(16rem, calc(100% - 3rem));
  height: auto;
  aspect-ratio: 8 / 13;
  overflow: hidden;
  border: 0.375rem solid #242b35;
  border-radius: 1.75rem;
  background: #090c11;
  box-shadow:
    -0.35rem 0.4rem 0 #080a0e,
    -0.6rem 0.75rem 1rem rgba(0, 0, 0, 0.7),
    0 1.75rem 3rem rgba(0, 0, 0, 0.52),
    0 0 2.25rem rgba(0, 229, 255, 0.16);
  transform: translate(-50%, -40%) rotateX(15deg) rotateY(30deg)
    rotateZ(-15deg);
  transform-style: preserve-3d;
}
.phone-island {
  position: absolute;
  z-index: 4;
  top: 0.2rem;
  left: 50%;
  width: 4.25rem;
  height: 0.875rem;
  border: 1px solid #171b22;
  border-radius: 999px;
  background: #020305;
  box-shadow: inset 0 -1px rgba(255, 255, 255, 0.05);
  transform: translateX(-50%);
}
.phone-float-card {
  position: absolute;
  z-index: 3;
  top: 41%;
  left: 54%;
  display: grid;
  width: 10.75rem;
  padding: 1rem;
  border: 1px solid rgba(0, 229, 255, 0.36);
  border-radius: var(--radius-card);
  background: rgba(18, 27, 38, 0.78);
  box-shadow:
    0 1rem 2.5rem rgba(0, 0, 0, 0.38),
    0 0 1.5rem rgba(0, 229, 255, 0.12),
    inset 2px 0 var(--color-accent);
  backdrop-filter: blur(0.75rem);
  transform: translateZ(2.5rem) rotate(-1deg);
}
.phone-float-card span {
  color: var(--color-primary);
  font-family: Consolas, "SFMono-Regular", Monaco, monospace;
  font-size: 0.5rem;
  font-weight: 800;
}
.phone-float-card strong {
  margin-top: 0.45rem;
  font-size: 0.875rem;
}
.phone-float-card small {
  margin-top: 0.25rem;
  color: var(--color-text-muted);
  font-size: 0.5625rem;
}
.phone-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 1.5rem;
  padding: 0.25rem 0.875rem 0;
  color: #89919e;
  font-family: Consolas, "SFMono-Regular", Monaco, monospace;
  font-size: 0.5rem;
}
.phone-appbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 2.75rem;
  padding: 0.5rem 0.875rem;
  border-bottom: 1px solid var(--color-border);
}
.phone-appbar div {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}
.phone-appbar strong {
  color: var(--color-primary);
  font-size: 1rem;
  font-weight: 900;
}
.phone-appbar small,
.phone-appbar > span {
  color: var(--color-text-muted);
  font-size: 0.5625rem;
}
.phone-appbar > span {
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
}
.phone-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  min-height: 2.25rem;
  border-bottom: 1px solid var(--color-border);
}
.phone-tabs span {
  display: grid;
  place-items: center;
  color: #89919e;
  font-size: 0.625rem;
}
.phone-tabs .is-active {
  box-shadow: inset 0 -2px var(--color-primary);
  color: var(--color-primary);
  font-weight: 800;
}
.phone-content {
  padding: 0.75rem;
}
.phone-highlight {
  position: relative;
  overflow: hidden;
  padding: 0.75rem;
  border: 1px solid rgba(0, 255, 255, 0.3);
  border-radius: var(--radius-control);
  background: var(--color-surface);
}
.phone-highlight::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 2.75rem;
  height: 2px;
  background: var(--color-accent);
}
.phone-highlight > span {
  color: var(--color-primary);
  font-family: Consolas, "SFMono-Regular", Monaco, monospace;
  font-size: 0.5rem;
  font-weight: 800;
}
.phone-highlight h3 {
  margin: 0.375rem 0 0.25rem;
  font-size: 0.9375rem;
  line-height: 1.3;
}
.phone-highlight p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.625rem;
}
.phone-genres {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0.625rem 0;
  padding: 0;
  border-block: 1px solid var(--color-border);
  list-style: none;
}
.phone-genres li {
  padding: 0.5rem 0.125rem;
  color: var(--color-text-muted);
  font-size: 0.5625rem;
  text-align: center;
}
.phone-genres li + li {
  border-left: 1px solid var(--color-border);
}
.phone-list-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.25rem;
}
.phone-list-heading strong {
  font-size: 0.6875rem;
}
.phone-list-heading span {
  color: var(--color-primary);
  font-size: 0.5rem;
}
.phone-list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
}
.phone-list li {
  display: grid;
  grid-template-columns: 1.5rem 1fr auto;
  gap: 0.5rem;
  align-items: center;
  min-height: 2.75rem;
  border-top: 1px solid var(--color-border);
}
.phone-list li > span {
  color: var(--color-primary);
  font-family: Consolas, "SFMono-Regular", Monaco, monospace;
  font-size: 0.5625rem;
  font-weight: 800;
}
.phone-list strong,
.phone-list small {
  display: block;
}
.phone-list strong {
  font-size: 0.6875rem;
}
.phone-list small {
  margin-top: 0.125rem;
  color: var(--color-text-muted);
  font-size: 0.5rem;
}
.phone-list b {
  color: var(--color-text-muted);
  font-size: 0.5rem;
  font-weight: 600;
}
.cover-slot {
  display: grid;
  min-width: 0;
  aspect-ratio: 2 / 1;
  place-items: center;
  overflow: hidden;
  border: 0;
  border-bottom: 1px solid var(--color-border);
  border-radius: 0;
  background: var(--color-background-deep);
}
.cover-slot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cover-card figcaption {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  overflow: hidden;
  padding: 0.375rem 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 650;
  line-height: 1.3;
  text-align: center;
}
.capabilities {
  background: var(--color-background-deep);
}
.capability-intro {
  display: grid;
  grid-template-columns: 1fr minmax(20rem, 0.72fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: end;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.capability-intro .section-heading {
  margin-bottom: 0;
}
.capability-intro > p {
  padding-bottom: 0.75rem;
}
.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
  gap: 1rem;
}
.capability-grid article {
  position: relative;
  min-width: 0;
  padding: 2rem;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}
.capability-grid article::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 3.5rem;
  height: 2px;
  background: var(--color-accent);
  opacity: 0;
  transform: scaleX(0);
  transform-origin: right;
  transition:
    opacity var(--transition),
    transform var(--transition);
}
@media (hover: hover) {
  .capability-grid article:hover::after {
    opacity: 1;
    transform: scaleX(1);
  }
}
.capability-grid h3 {
  margin: 2.25rem 0 0.75rem;
  font-size: 1.125rem;
  line-height: 1.35;
}
.capability-grid p {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  line-height: 1.75;
}

.download-band {
  position: relative;
  padding: clamp(2.5rem, 6vw, 5rem);
  border: 1px solid rgba(0, 229, 255, 0.38);
  border-radius: var(--radius-card);
  background:
    radial-gradient(
      ellipse 55% 50% at 50% 0%,
      rgba(0, 229, 255, 0.09),
      transparent 72%
    ),
    var(--color-surface-soft);
  box-shadow:
    0 0 2.25rem rgba(0, 229, 255, 0.13),
    0 1.5rem 4.5rem rgba(255, 45, 170, 0.07),
    inset 0 1px rgba(0, 229, 255, 0.08),
    inset 0 -1px rgba(255, 45, 170, 0.08);
  text-align: center;
}
.download-copy {
  max-width: 56rem;
  margin-inline: auto;
}
.download-copy h2 {
  max-width: 52rem;
  margin-inline: auto;
}
.download-copy > p {
  margin-inline: auto;
}
.platform-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2rem;
}
.platform-button {
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  justify-content: center;
  width: auto;
  max-width: 20rem;
  min-height: 4.25rem;
  padding: 0.625rem 1rem;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-control);
  color: var(--color-text);
  transition:
    border-color var(--transition),
    background-color var(--transition),
    color var(--transition);
}
.platform-button:hover {
  background: rgba(0, 229, 255, 0.06);
  color: var(--color-text);
}
.platform-button b {
  color: var(--color-text);
  font-family: Consolas, "SFMono-Regular", Monaco, monospace;
  font-size: 1rem;
}
.faq {
  padding-top: var(--module-gap);
}
.faq-intro {
  display: grid;
  grid-template-columns: minmax(0, 44rem);
  justify-content: center;
  row-gap: 1.25rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  text-align: center;
}
.faq-intro .section-code {
  grid-column: auto;
  justify-self: center;
  margin-bottom: 0;
}
.faq-intro h2 {
  grid-column: auto;
  justify-self: center;
  margin-bottom: 0;
  font-size: clamp(1.9rem, 3.3vw, 3.25rem);
  line-height: 1.2;
}
.faq-intro > p:last-child {
  grid-column: auto;
  grid-row: auto;
  justify-self: center;
  max-width: 44rem;
  margin-bottom: 0;
  padding-bottom: 0;
  color: var(--color-text-muted);
  line-height: 1.8;
}
.faq-list {
  display: grid;
  width: min(100%, 60rem);
  margin-inline: auto;
  gap: 0.75rem;
}
.faq-list details {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface-soft);
  transition:
    border-color var(--transition),
    background-color var(--transition);
}
.faq-list details[open] {
  border-color: rgba(0, 229, 255, 0.58);
  background: var(--color-surface);
}
.faq-list summary {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 5rem;
  padding: 1.25rem 4rem 1.25rem 1.5rem;
  cursor: pointer;
  font-size: 1.0625rem;
  font-weight: 750;
  list-style: none;
}
.faq-list summary::-webkit-details-marker {
  display: none;
}
.faq-list summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 1.5rem;
  color: var(--color-primary);
  font-family: Consolas, "SFMono-Regular", Monaco, monospace;
  font-size: 1.5rem;
  font-weight: 400;
  transform: translateY(-50%);
}
.faq-list details[open] summary::after {
  content: "−";
}
.faq-list p {
  max-width: 52rem;
  margin: 0.25rem 4rem 1.5rem 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-background-deep);
}
.footer-main {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: start;
  padding-block: 3.5rem;
}
.footer-main p {
  margin: 0.75rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.copyright {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.25rem;
  border-top: 1px solid var(--color-border);
  color: #777d87;
  font-family: Consolas, "SFMono-Regular", Monaco, monospace;
  font-size: 0.625rem;
}

@media (max-width: 68rem) {
  .hero-inner {
    grid-template-columns: minmax(0, 0.9fr) minmax(28rem, 1.1fr);
    gap: 1.5rem;
  }
  .hero-visual {
    width: 100%;
    margin-left: 0;
  }
  .category-list {
    grid-template-columns: repeat(3, 1fr);
  }
  .category-list li:nth-child(4),
  .category-list li:nth-child(5) {
    border-top: 1px solid var(--color-border);
  }
  .category-list li:nth-child(4) {
    border-left: 0;
  }
  .capability-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 52rem) {
  .container {
    width: min(100% - 2rem, 46rem);
  }
  .site-nav {
    display: none;
  }
  .nav-inner {
    grid-template-columns: 1fr auto;
  }
  .hero {
    min-height: 0;
  }
  .hero-inner {
    display: block;
    min-height: 0;
    padding-block: 3rem;
  }
  .hero-copy {
    max-width: 32rem;
  }
  .hero-visual {
    position: absolute;
    z-index: 0;
    top: 1.25rem;
    right: -13rem;
    width: 42rem;
    height: auto;
    margin: 0;
    opacity: 0.34;
  }
  .hero-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
      90deg,
      var(--color-background) 0%,
      rgba(16, 18, 22, 0.5) 48%,
      transparent 80%
    );
  }
  .hero-summary {
    max-width: 28rem;
  }
  .discover {
    padding-top: 3rem;
  }
  .discover-showcase,
  .capability-intro,
  .faq-intro {
    grid-template-columns: 1fr;
  }
  .discover .section-heading {
    display: block;
    max-width: 46rem;
  }
  .discover .section-heading h2 {
    margin-bottom: 1.25rem;
  }
  .discover .section-heading > p:last-child {
    padding-bottom: 0;
  }
  .discover-showcase {
    container-type: inline-size;
    gap: 1rem;
  }
  .discover-screen {
    block-size: min(
      var(--cover-max-height),
      calc(50cqi + var(--cover-height-offset))
    );
  }
  .cover-grid {
    grid-template-columns: none;
    grid-template-rows: 1fr;
    grid-auto-flow: column;
    grid-auto-columns: min(18rem, calc(100% - 2rem));
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.75rem;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    scrollbar-color: var(--color-primary) rgba(53, 68, 82, 0.45);
  }
  .cover-grid::-webkit-scrollbar {
    height: 0.5rem;
  }
  .cover-grid::-webkit-scrollbar-track {
    border-radius: var(--radius-control);
    background: rgba(53, 68, 82, 0.45);
  }
  .cover-grid::-webkit-scrollbar-thumb {
    border-radius: var(--radius-control);
    background: var(--color-primary);
  }
  .cover-grid .cover-card {
    scroll-snap-align: start;
  }
  .phone-device {
    top: 50%;
    left: 42%;
    width: min(14rem, calc(100% - 2.5rem));
    border-width: 0.3125rem;
    border-radius: 1.5rem;
  }
  .phone-float-card {
    top: 41%;
    right: auto;
    left: 54%;
    width: 9.5rem;
  }
  .capability-intro {
    gap: 1.5rem;
  }
  .faq-intro > p:last-child {
    grid-column: 1;
    grid-row: auto;
    margin-top: 0;
  }
  .footer-main {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 35rem) {
  .nav-cta {
    min-width: auto;
    padding-inline: 0.875rem;
  }
  .hero {
    min-height: 0;
  }
  .hero-inner {
    min-height: 0;
    padding-block: 2.75rem 2.5rem;
  }
  .hero h1 {
    font-size: clamp(3.75rem, 20vw, 4.75rem);
  }
  .hero-tagline {
    max-width: 19rem;
    font-size: 1.625rem;
  }
  .hero-tagline strong {
    display: block;
    margin-top: 0.25rem;
  }
  .hero-summary {
    max-width: 20rem;
    font-size: 1rem;
    line-height: 1.7;
  }
  .hero-visual {
    top: 5.5rem;
    right: -19.5rem;
    width: 39rem;
    height: auto;
    opacity: 0.28;
  }
  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.625rem;
  }
  .hero-actions .button {
    width: 100%;
    min-width: 0;
  }
  .hero-catalog {
    max-width: 20rem;
    margin-top: 1.5rem;
    gap: 0.5rem 1.25rem;
  }
  .discover {
    padding-top: 3rem;
  }
  .section-heading h2,
  .download-copy h2 {
    font-size: clamp(2.1rem, 12vw, 3rem);
  }
  .category-list {
    grid-template-columns: 1fr 1fr;
  }
  .category-list li:nth-child(3) {
    border-top: 1px solid var(--color-border);
    border-left: 0;
  }
  .category-list li:nth-child(4) {
    border-left: 1px solid var(--color-border);
  }
  .category-list li:nth-child(5) {
    grid-column: 1 / -1;
    border-left: 0;
  }
  .discover-showcase {
    --cover-gap: 0.5rem;
    --cover-height-offset: 5.875rem;
    --cover-max-height: 16.875rem;
  }
  .phone-device {
    width: min(12rem, calc(100% - 2rem));
  }
  .phone-float-card {
    top: 50%;
    right: auto;
    left: 52%;
    width: 8.75rem;
    padding: 0.75rem;
  }
  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
  }
  .capability-grid article {
    padding: 1.25rem;
  }
  .capability-grid h3 {
    margin: 1.25rem 0 0.625rem;
    font-size: 1rem;
  }
  .capability-grid p {
    font-size: 0.8125rem;
    line-height: 1.65;
  }
  .download-band {
    padding: 2rem 1.25rem;
  }
  .platform-actions {
    display: grid;
    grid-template-columns: 1fr;
  }
  .platform-button {
    width: 100%;
  }
  .faq {
    gap: 2rem;
  }
  .site-footer nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.25rem 1.5rem;
  }
  .copyright {
    flex-direction: column;
  }
}

@media (max-width: 22rem) {
  .phone-device {
    width: min(11.5rem, calc(100% - 1rem));
  }
  .phone-float-card {
    left: 48.5%;
  }
}

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