:root {
  color-scheme: dark;
  --bg: #06151d;
  --bg-deep: #02080d;
  --panel: rgba(10, 28, 38, 0.76);
  --panel-strong: rgba(16, 47, 59, 0.9);
  --line: rgba(118, 232, 222, 0.2);
  --line-strong: rgba(118, 232, 222, 0.42);
  --text: #f4fbf8;
  --muted: #9db9b7;
  --soft: #d2ebe7;
  --mint: #52f5bd;
  --cyan: #49cdf5;
  --amber: #ffd166;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.35);
  font-family: "Alibaba PuHuiTi", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Noto Sans SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 9%, rgba(82, 245, 189, 0.2), transparent 28%),
    radial-gradient(circle at 82% 0%, rgba(73, 205, 245, 0.18), transparent 30%),
    linear-gradient(135deg, var(--bg-deep), var(--bg) 48%, #07101c);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 80%);
}

a {
  color: inherit;
}

.site-shell {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 16px 0 44px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(3, 11, 17, 0.72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.brand,
.nav-links,
.site-footer nav,
.filing-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 15px;
  color: #02140f;
  font-weight: 950;
  background: linear-gradient(135deg, var(--mint), var(--cyan));
  box-shadow: 0 0 30px rgba(82, 245, 189, 0.32);
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.nav-links a,
.site-footer a,
.text-link {
  color: var(--soft);
  text-decoration: none;
}

.nav-links a:hover,
.site-footer a:hover,
.text-link:hover {
  color: var(--mint);
}

.topbar-cta,
.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 900;
  text-decoration: none;
}

.topbar-cta,
.primary-action {
  color: #03140f;
  background: linear-gradient(135deg, var(--cyan), var(--mint));
  box-shadow: 0 14px 44px rgba(82, 245, 189, 0.22);
}

.secondary-action {
  border: 1px solid var(--line-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: 32px;
  align-items: center;
  padding: 24px 0 46px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--mint);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: clamp(44px, 6.4vw, 78px);
  line-height: 1.04;
  letter-spacing: -0.045em;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-lead {
  max-width: 760px;
  font-size: 18px;
}

.hero-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 20px;
}

.hero-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-notes span,
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--soft);
  background: rgba(255, 255, 255, 0.04);
}

.hero-panel {
  position: relative;
  min-height: 470px;
  border: 1px solid var(--line);
  border-radius: 38px;
  overflow: hidden;
  background:
    linear-gradient(150deg, rgba(82, 245, 189, 0.16), transparent 38%),
    linear-gradient(320deg, rgba(73, 205, 245, 0.22), transparent 42%),
    rgba(4, 16, 24, 0.86);
  box-shadow: var(--shadow);
}

.hero-panel::before {
  position: absolute;
  inset: 0;
  content: "";
  background: repeating-linear-gradient(90deg, transparent 0 26px, rgba(255, 255, 255, 0.035) 27px 28px);
  opacity: 0.4;
}

.orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(4px);
  animation: drift 7s ease-in-out infinite alternate;
}

.orb-one {
  width: 190px;
  height: 190px;
  right: 18px;
  top: 28px;
  background: rgba(82, 245, 189, 0.22);
}

.orb-two {
  width: 120px;
  height: 120px;
  left: 34px;
  bottom: 46px;
  background: rgba(73, 205, 245, 0.22);
  animation-delay: -2s;
}

.terminal-card {
  position: absolute;
  inset: 42px 34px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--line-strong);
  border-radius: 30px;
  background: rgba(2, 10, 15, 0.66);
  backdrop-filter: blur(14px);
}

.terminal-header {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.terminal-header span {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: var(--line-strong);
}

.signal-line {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 4px 14px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.045);
}

.signal-line strong {
  grid-row: span 2;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 15px;
  color: #03140f;
  background: linear-gradient(135deg, var(--mint), var(--cyan));
}

.signal-line span {
  font-size: 18px;
  font-weight: 900;
}

.signal-line em {
  color: var(--muted);
  font-style: normal;
}

.signal-line.active {
  border-color: rgba(82, 245, 189, 0.44);
  background: rgba(82, 245, 189, 0.1);
}

.waveform {
  display: flex;
  align-items: end;
  justify-content: space-between;
  height: 94px;
  margin-top: auto;
  padding: 18px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
}

.waveform i {
  width: 6%;
  height: var(--h);
  border-radius: 999px;
  background: linear-gradient(180deg, var(--mint), var(--cyan));
  animation: pulse 1.8s ease-in-out infinite alternate;
}

.trust-strip,
.section,
.site-footer {
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-bottom: 22px;
  overflow: hidden;
}

.trust-strip div {
  padding: 22px;
  background: rgba(255, 255, 255, 0.03);
}

.trust-strip strong,
.trust-strip span {
  display: block;
}

.trust-strip span {
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.65;
}

.section {
  margin: 22px 0;
  padding: clamp(24px, 4vw, 42px);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 24px;
}

.step-grid,
.pricing-grid,
.download-section {
  display: grid;
  gap: 16px;
}

.step-grid,
.pricing-grid {
  grid-template-columns: repeat(3, 1fr);
}

.pricing-grid {
  grid-template-columns: repeat(4, 1fr);
}

.step-card,
.feature-card,
.download-card,
.price-card {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.045);
}

.step-card span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 14px;
  color: #03140f;
  font-weight: 950;
  background: linear-gradient(135deg, var(--mint), var(--cyan));
}

.split-section {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 24px;
}

.sticky-copy {
  position: sticky;
  top: 112px;
  align-self: start;
}

.feature-stack {
  display: grid;
  gap: 14px;
}

.simple-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  min-height: 0;
}

.feature-card b {
  color: var(--mint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.download-section {
  grid-template-columns: 1.3fr 0.7fr;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.download-card {
  border-color: var(--line);
  background: var(--panel-strong);
}

.main-download {
  background:
    linear-gradient(140deg, rgba(82, 245, 189, 0.18), transparent 38%),
    rgba(16, 47, 59, 0.92);
}

code {
  display: block;
  max-width: 100%;
  margin: 18px 0;
  padding: 14px;
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  color: #c8fff0;
  background: rgba(2, 8, 13, 0.55);
  white-space: nowrap;
}

.price-card strong {
  display: block;
  margin: 18px 0 8px;
  font-size: 38px;
  letter-spacing: -0.04em;
}

.price-card.recommended {
  border-color: rgba(82, 245, 189, 0.52);
  background:
    linear-gradient(150deg, rgba(82, 245, 189, 0.16), transparent 52%),
    rgba(255, 255, 255, 0.06);
}

.price-card.recommended .pill {
  color: #041510;
  border-color: transparent;
  background: linear-gradient(135deg, var(--mint), var(--amber));
}

.compliance-section {
  display: grid;
  grid-template-columns: 0.7fr 1fr;
  gap: 24px;
  align-items: center;
  border-color: rgba(255, 209, 102, 0.28);
  background:
    linear-gradient(120deg, rgba(255, 209, 102, 0.1), transparent 48%),
    var(--panel);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 24px 0 32px;
  padding: 24px;
}

.site-footer p,
.muted {
  color: var(--muted);
}

.footer-compliance {
  display: grid;
  gap: 8px;
  text-align: right;
}

.filing-links {
  justify-content: flex-end;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}

.filing-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.filing-links a[hidden] {
  display: none;
}

.police-filing img {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

.simple-page {
  max-width: 920px;
  margin: 0 auto;
  padding: 42px 0;
}

.simple-card {
  margin: 20px 0;
  padding: clamp(24px, 5vw, 44px);
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.simple-card ul {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.75;
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }

  to {
    transform: translate3d(18px, -14px, 0) scale(1.08);
  }
}

@keyframes pulse {
  from {
    opacity: 0.55;
    transform: scaleY(0.78);
  }

  to {
    opacity: 1;
    transform: scaleY(1);
  }
}

@media (max-width: 980px) {
  .hero,
  .split-section,
  .download-section,
  .compliance-section {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    min-height: 440px;
  }

  .simple-feature-grid,
  .step-grid,
  .pricing-grid,
  .trust-strip {
    grid-template-columns: 1fr;
  }

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

  .sticky-copy {
    position: static;
  }

  .nav-links {
    display: none;
  }
}

@media (max-width: 640px) {
  .site-shell {
    width: min(100% - 24px, 1200px);
  }

  .topbar {
    top: 8px;
  }

  .topbar-cta {
    display: none;
  }

  h1 {
    font-size: clamp(38px, 12vw, 58px);
    line-height: 1.08;
  }

  h2 {
    font-size: clamp(28px, 8.6vw, 42px);
    line-height: 1.15;
  }

  .terminal-card {
    inset: 22px 18px;
    padding: 16px;
  }

  .hero-panel {
    min-height: 390px;
  }

  .simple-feature-grid {
    grid-template-columns: 1fr;
  }

  .waveform {
    height: 72px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-compliance {
    text-align: left;
  }

  .filing-links {
    justify-content: flex-start;
  }

  .site-footer nav {
    flex-wrap: wrap;
  }
}