:root {
  color-scheme: dark;
  --bg: #050816;
  --bg-soft: rgba(12, 18, 39, 0.7);
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.24);
  --text: #f4f7ff;
  --text-soft: rgba(233, 238, 255, 0.74);
  --cyan: #7ee7ff;
  --violet: #9c8cff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius: 24px;
  --content-width: min(1120px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    Inter,
    "PingFang SC",
    "Microsoft YaHei",
    "Helvetica Neue",
    sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 20%, rgba(126, 231, 255, 0.14), transparent 28%),
    radial-gradient(circle at 80% 0%, rgba(156, 140, 255, 0.2), transparent 22%),
    linear-gradient(180deg, #081124 0%, #060912 55%, #050816 100%);
  overflow-x: hidden;
}

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

.scene,
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.scene {
  z-index: 0;
}

.noise {
  z-index: 1;
  opacity: 0.08;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 4px 4px;
  mix-blend-mode: soft-light;
}

.page-shell {
  position: relative;
  z-index: 2;
  width: var(--content-width);
  margin: 0 auto;
  padding: 32px 0 48px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.9fr);
  gap: 24px;
  align-items: center;
  min-height: 100vh;
  padding: 48px 0;
}

.pill,
.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 8px 14px;
  border: 1px solid rgba(126, 231, 255, 0.28);
  border-radius: 999px;
  background: rgba(126, 231, 255, 0.08);
  color: #b8f4ff;
  letter-spacing: 0.08em;
  font-size: 12px;
  text-transform: uppercase;
}

.hero-kicker,
.section-kicker {
  margin: 18px 0 0;
  color: var(--cyan);
  letter-spacing: 0.14em;
  font-size: 13px;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 11ch;
  margin: 16px 0 20px;
  font-size: clamp(3rem, 7vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.hero-summary,
.card p,
.bullet-list,
.ordered-list,
.footer,
.panel-note {
  color: var(--text-soft);
  line-height: 1.8;
}

.hero-summary {
  max-width: 62ch;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 164px;
  padding: 14px 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, rgba(126, 231, 255, 0.92), rgba(156, 140, 255, 0.92));
  color: #05111d;
  font-weight: 700;
}

.button-secondary {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
}

.card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(14, 22, 43, 0.78), rgba(8, 13, 29, 0.64));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), transparent 22%);
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask-composite: exclude;
}

.hero-panel,
.grid .card {
  padding: 26px;
}

.panel-label {
  margin: 0 0 14px;
  color: #c7d3ff;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-metrics {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.hero-metrics li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-metrics span {
  color: var(--text-soft);
}

.hero-metrics strong {
  color: var(--text);
  font-size: 1.08rem;
}

.section {
  padding: 24px 0 8px;
}

.section-heading {
  margin-bottom: 22px;
}

.section h2 {
  margin: 8px 0 0;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.grid {
  display: grid;
  gap: 20px;
}

.grid-two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card h3 {
  margin: 0 0 12px;
  font-size: 1.28rem;
}

.bullet-list,
.ordered-list {
  margin: 0;
  padding-left: 20px;
}

.bullet-list li,
.ordered-list li {
  margin-bottom: 10px;
}

.quote {
  margin: 0;
  padding-left: 18px;
  border-left: 2px solid rgba(126, 231, 255, 0.48);
}

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  align-items: center;
  margin-top: 44px;
  padding: 24px 0 8px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-brand strong {
  font-size: 1rem;
  color: var(--text);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.footer-links a:hover {
  color: var(--cyan);
}

.dot {
  color: rgba(255, 255, 255, 0.34);
}

@media (max-width: 960px) {
  .hero,
  .grid-two,
  .grid-three {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 96px;
  }

  .hero h1 {
    max-width: 12ch;
  }
}

@media (max-width: 640px) {
  :root {
    --content-width: min(100vw - 24px, 100%);
    --radius: 20px;
  }

  .page-shell {
    padding-top: 18px;
  }

  .hero {
    padding: 72px 0 20px;
  }

  .hero-panel,
  .grid .card {
    padding: 20px;
  }

  .button {
    width: 100%;
  }

  .footer {
    padding-bottom: 24px;
  }
}