:root {
  --bg: #060a12;
  --bg-soft: #0b1220;
  --panel: rgba(10, 17, 30, 0.74);
  --panel-strong: rgba(8, 15, 28, 0.9);
  --line: rgba(155, 183, 255, 0.14);
  --line-strong: rgba(0, 231, 255, 0.3);
  --ink: #f4f8ff;
  --muted: #93a6c4;
  --cyan: #00e7ff;
  --violet: #8b5dff;
  --coral: #ff5f8d;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
  --radius-xl: 36px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --body-font: "Avenir Next", "SF Pro Display", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  --title-font: "Avenir Next Condensed", "DIN Alternate", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--body-font);
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 15%, rgba(0, 231, 255, 0.12), transparent 24%),
    radial-gradient(circle at 84% 12%, rgba(139, 93, 255, 0.16), transparent 26%),
    radial-gradient(circle at 82% 78%, rgba(255, 95, 141, 0.14), transparent 22%),
    linear-gradient(180deg, #050911 0%, #0a0e17 38%, #060a12 100%);
  overflow-x: hidden;
}

main,
.landing-footer {
  position: relative;
  z-index: 1;
}

canvas#neuralCanvas,
.landing-noise,
.landing-grid,
.landing-aura {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

canvas#neuralCanvas {
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.9;
}

.landing-noise {
  z-index: 0;
  opacity: 0.2;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.35), transparent 2px),
    radial-gradient(circle at 70% 35%, rgba(0, 231, 255, 0.15), transparent 2px),
    radial-gradient(circle at 55% 75%, rgba(139, 93, 255, 0.18), transparent 2px);
  background-size: 180px 180px;
}

.landing-grid {
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.94), transparent 92%);
}

.landing-aura {
  border-radius: 999px;
  filter: blur(90px);
  opacity: 0.45;
  z-index: 0;
  animation: auraDrift 16s ease-in-out infinite;
}

.aura-a {
  top: -10%;
  left: -8%;
  width: 360px;
  height: 360px;
  background: rgba(0, 231, 255, 0.18);
}

.aura-b {
  top: 12%;
  right: -6%;
  width: 320px;
  height: 320px;
  background: rgba(139, 93, 255, 0.22);
  animation-delay: -5s;
}

.aura-c {
  right: 14%;
  bottom: -6%;
  width: 260px;
  height: 260px;
  background: rgba(255, 95, 141, 0.16);
  animation-delay: -9s;
}

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

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.landing-nav {
  position: sticky;
  top: 14px;
  z-index: 12;
  padding-top: 14px;
}

.nav-shell,
.feature-card,
.signal-panel,
.signal-log,
.architecture-card,
.module-card,
.tech-card,
.cta-panel,
.cta-console {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}

.nav-shell {
  width: fit-content;
  max-width: calc(100vw - 32px);
  margin: 0 0 0 16px;
  padding: 16px 18px;
  border-radius: 999px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 18px;
  background: rgba(8, 14, 24, 0.78);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, rgba(0, 231, 255, 0.18), rgba(139, 93, 255, 0.22)),
    rgba(255, 255, 255, 0.04);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.08),
    0 0 24px rgba(0, 231, 255, 0.18);
}

.brand-core {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  box-shadow:
    0 0 16px rgba(0, 231, 255, 0.75),
    0 0 34px rgba(139, 93, 255, 0.45);
  animation: pulseGlow 3.2s ease-in-out infinite;
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-family: var(--title-font);
  letter-spacing: 0.08em;
  font-size: 1.1rem;
}

.brand-copy small,
.nav-links {
  color: var(--muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-links a {
  padding: 10px 14px;
  border-radius: 999px;
  transition: color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.nav-links a:not(.nav-cta):hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--ink);
  margin: 0 auto;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-cta,
.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 16px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.nav-cta,
.primary-button {
  color: #08101f;
  font-weight: 800;
  background: linear-gradient(135deg, var(--cyan), #7dd7ff 45%, var(--violet));
  box-shadow:
    0 18px 34px rgba(0, 231, 255, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.secondary-button {
  color: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
}

.nav-cta:hover,
.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-2px);
}

.button-wide {
  min-width: 240px;
}

.hero-section,
.section-block,
.cta-section,
.landing-footer {
  width: min(1320px, calc(100vw - 32px));
  margin: 0 auto;
}

.hero-shell {
  display: grid;
  gap: 26px;
  padding: 84px 0 56px;
}

.hero-copy {
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.hero-copy h1,
.section-head h2,
.signal-panel h2,
.cta-panel h2 {
  margin: 0;
  font-family: var(--title-font);
  letter-spacing: -0.04em;
}

.hero-copy h1 {
  font-size: clamp(3rem, 7vw, 5.8rem);
  line-height: 1;
  display: grid;
  justify-items: center;
  gap: 10px;
}

.gradient-text {
  background: linear-gradient(135deg, #cbf4ff 10%, var(--cyan) 40%, #9aa9ff 70%, var(--coral));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-title-main,
.hero-title-sub {
  position: relative;
  display: block;
}

.hero-title-main {
  font-size: clamp(3.1rem, 7vw, 5.9rem);
  line-height: 0.92;
  text-shadow:
    0 0 18px rgba(0, 231, 255, 0.16),
    0 0 42px rgba(139, 93, 255, 0.18);
  animation:
    titleGradientFlow 10s linear infinite,
    titlePulseGlow 4.8s ease-in-out infinite;
}

.hero-title-main::after {
  content: "";
  position: absolute;
  inset: 14% -4%;
  background: linear-gradient(
    110deg,
    transparent 0%,
    rgba(255, 255, 255, 0.18) 46%,
    rgba(255, 255, 255, 0.5) 50%,
    rgba(255, 255, 255, 0.18) 54%,
    transparent 100%
  );
  transform: translateX(-120%) skewX(-18deg);
  mix-blend-mode: screen;
  filter: blur(10px);
  pointer-events: none;
  animation: titleScan 5.4s ease-in-out infinite;
}

.hero-title-sub {
  font-size: clamp(1.22rem, 2.15vw, 1.9rem);
  line-height: 1.18;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: rgba(238, 246, 255, 0.9);
  text-shadow:
    0 0 10px rgba(0, 231, 255, 0.1),
    0 0 26px rgba(139, 93, 255, 0.12);
  animation: subtitleFloat 4.6s ease-in-out infinite;
}

.hero-title-sub::before {
  content: "";
  position: absolute;
  left: -4%;
  right: -4%;
  top: 50%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(0, 231, 255, 0.14) 20%,
    rgba(255, 255, 255, 0.6) 50%,
    rgba(139, 93, 255, 0.18) 80%,
    transparent 100%
  );
  transform: translate3d(-120%, -50%, 0);
  opacity: 0.75;
  filter: blur(0.6px);
  pointer-events: none;
  animation: subtitleSweep 4.8s ease-in-out infinite;
}

.hero-description,
.section-head p,
.feature-card p,
.signal-column p,
.signal-log p,
.architecture-card p,
.module-card p,
.tech-card li,
.cta-copy p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-description {
  max-width: none;
  margin: 24px auto 0;
  min-height: 1.8em;
  font-size: clamp(1.3rem, 2vw, 1.9rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
  display: inline-block;
  position: relative;
  text-shadow:
    0 0 12px rgba(0, 231, 255, 0.08),
    0 0 28px rgba(139, 93, 255, 0.08);
}

.hero-description strong {
  color: var(--ink);
}

.hero-description.is-typing::after {
  content: "";
  display: inline-block;
  width: 0.12em;
  height: 0.95em;
  margin-left: 0.18em;
  vertical-align: -0.08em;
  border-radius: 999px;
  background: linear-gradient(180deg, #d8f7ff, var(--cyan));
  box-shadow:
    0 0 12px rgba(0, 231, 255, 0.46),
    0 0 24px rgba(139, 93, 255, 0.2);
  animation: blinkCaret 0.86s steps(1) infinite;
}

.hero-primary-button {
  min-height: 64px;
  min-width: 320px;
  padding: 0 42px;
  border-radius: 20px;
  font-size: 1.08rem;
  letter-spacing: 0.04em;
  box-shadow:
    0 24px 44px rgba(0, 231, 255, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.hero-actions,
.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 32px;
}

.hero-stat-row {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.hero-stat-row article,
.signal-log,
.architecture-card,
.module-card,
.tech-card {
  position: relative;
  overflow: hidden;
}

.hero-stat-row article {
  padding: 18px 20px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.03));
}

.hero-stat-row article::before,
.feature-card::before,
.signal-log::before,
.architecture-card::before,
.module-card::before,
.tech-card::before,
.cta-console::before {
  content: "";
  position: absolute;
  inset: 0 auto auto -20%;
  width: 40%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  opacity: 0.6;
  transform: rotate(25deg);
}

.hero-stat-row strong {
  display: block;
  margin-bottom: 8px;
  font-family: var(--title-font);
  letter-spacing: 0.08em;
  font-size: 1rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  min-height: 220px;
  padding: 24px;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.feature-card > * {
  position: relative;
  z-index: 1;
}

.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  border: 1.25px solid transparent;
  background:
    linear-gradient(180deg, rgba(9, 16, 28, 0), rgba(9, 16, 28, 0)) padding-box,
    conic-gradient(
      from 0deg,
      rgba(0, 231, 255, 0) 0deg,
      rgba(0, 231, 255, 0) 284deg,
      rgba(0, 231, 255, 0.08) 292deg,
      rgba(0, 231, 255, 0.82) 304deg,
      rgba(255, 255, 255, 1) 318deg,
      rgba(255, 95, 141, 0.94) 332deg,
      rgba(255, 95, 141, 0.12) 346deg,
      rgba(255, 95, 141, 0) 360deg
    ) border-box;
  background-clip: padding-box, border-box;
  pointer-events: none;
  opacity: 1;
  transform-origin: center;
  will-change: transform, opacity, filter;
  filter:
    drop-shadow(0 0 10px rgba(0, 231, 255, 0.18))
    drop-shadow(0 0 18px rgba(255, 95, 141, 0.14));
  animation:
    featureBorderRunner 3.4s linear infinite,
    featureRunnerPulse 1.8s ease-in-out infinite;
}

.feature-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  border: 1px solid transparent;
  background:
    linear-gradient(180deg, rgba(9, 16, 28, 0), rgba(9, 16, 28, 0)) padding-box,
    linear-gradient(
      135deg,
      rgba(0, 231, 255, 0.26) 0%,
      rgba(117, 149, 255, 0.18) 52%,
      rgba(255, 95, 141, 0.24) 100%
    ) border-box;
  background-clip: padding-box, border-box;
  box-shadow: inset 0 0 0 1px rgba(0, 231, 255, 0.02);
  pointer-events: none;
}

.feature-card.delay-a::before {
  animation-delay: -1.1s, -0.5s;
}

.feature-card.delay-b::before {
  animation-delay: -2.2s, -0.9s;
}

.signal-panel::after,
.architecture-card::after,
.module-card::after,
.tech-card::after,
.cta-panel::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(0, 231, 255, 0.24), rgba(139, 93, 255, 0.14), transparent);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.floating-card {
  animation: floatCard 5s ease-in-out infinite;
}

.floating-card.delay-a {
  animation-delay: 0.7s;
}

.floating-card.delay-b {
  animation-delay: 1.4s;
}

.feature-icon,
.architecture-node,
.module-index,
.signal-column-index,
.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.feature-icon.cyan,
.architecture-node.cyan,
.signal-column.cyan .signal-column-index {
  background: rgba(0, 231, 255, 0.14);
  color: var(--cyan);
}

.feature-icon.violet,
.architecture-node.violet,
.signal-column.violet .signal-column-index {
  background: rgba(139, 93, 255, 0.18);
  color: #ccb7ff;
}

.feature-icon.coral,
.architecture-node.coral,
.signal-column.coral .signal-column-index {
  background: rgba(255, 95, 141, 0.18);
  color: #ffadc3;
}

.feature-card h2,
.signal-column h3,
.signal-log strong,
.architecture-card h3,
.module-card h3,
.tech-card h3 {
  margin: 16px 0 10px;
  font-size: 1.3rem;
}

.signal-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 18px;
  align-items: start;
}

.signal-panel,
.cta-panel {
  position: relative;
  overflow: hidden;
}

.signal-panel {
  border-radius: var(--radius-xl);
  padding: 28px;
  background:
    linear-gradient(180deg, rgba(13, 21, 37, 0.9), rgba(7, 14, 26, 0.88)),
    rgba(10, 17, 30, 0.8);
}

.signal-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent, rgba(0, 231, 255, 0.08), transparent);
  transform: translateY(-100%);
  animation: scanLine 5.6s linear infinite;
  pointer-events: none;
}

.signal-panel-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 22px;
}

.signal-panel h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 0.96;
}

.status-pill {
  min-width: auto;
  padding: 0 12px;
  background: rgba(0, 231, 255, 0.12);
  color: var(--cyan);
  box-shadow: inset 0 0 0 1px rgba(0, 231, 255, 0.2);
}

.signal-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.signal-column {
  min-height: 220px;
  padding: 20px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.signal-flow {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.signal-flow span {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
}

.signal-flow span:not(:last-child)::after {
  content: ">";
  margin-left: 12px;
  color: var(--cyan);
}

.signal-sidebar {
  display: grid;
  gap: 16px;
}

.signal-log {
  padding: 20px;
  border-radius: 22px;
  background: rgba(8, 15, 28, 0.84);
}

.signal-log span {
  color: var(--cyan);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
}

.section-block {
  padding-top: 26px;
}

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

.section-head h2,
.cta-panel h2 {
  font-size: clamp(2.1rem, 4vw, 4rem);
  line-height: 0.96;
}

.architecture-stack,
.module-grid,
.tech-grid {
  display: grid;
  gap: 18px;
}

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

.architecture-card,
.module-card,
.tech-card {
  border-radius: var(--radius-lg);
  padding: 24px;
}

.architecture-card {
  min-height: 240px;
}

.module-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.module-index {
  background: rgba(255, 255, 255, 0.06);
  color: var(--cyan);
}

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

.tech-card ul,
.tech-card ol {
  margin: 14px 0 0;
  padding-left: 22px;
  display: grid;
  gap: 10px;
}

.cta-section {
  padding: 34px 0 32px;
}

.cta-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 1.1fr);
  gap: 22px;
  padding: 28px;
  border-radius: var(--radius-xl);
}

.cta-copy {
  align-self: center;
}

.cta-console {
  padding: 22px;
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(10, 17, 30, 0.96), rgba(9, 15, 25, 0.9)),
    rgba(10, 17, 30, 0.86);
}

.cta-console-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.console-field {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.console-field span {
  color: var(--cyan);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.console-field input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
}

.landing-footer {
  padding: 0 0 34px;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-tilt] {
  transform-style: preserve-3d;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

[data-tilt]:hover {
  border-color: rgba(0, 231, 255, 0.24);
  box-shadow:
    0 30px 90px rgba(0, 0, 0, 0.44),
    0 0 0 1px rgba(0, 231, 255, 0.08);
}

@keyframes pulseGlow {
  0%,
  100% {
    box-shadow:
      0 0 16px rgba(0, 231, 255, 0.75),
      0 0 34px rgba(139, 93, 255, 0.45);
  }
  50% {
    box-shadow:
      0 0 24px rgba(139, 93, 255, 0.72),
      0 0 48px rgba(0, 231, 255, 0.34);
  }
}

@keyframes floatCard {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes auraDrift {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(24px, -22px, 0);
  }
}

@keyframes scanLine {
  0% {
    transform: translateY(-100%);
  }
  100% {
    transform: translateY(100%);
  }
}

@media (max-width: 1180px) {
  .hero-grid,
  .architecture-stack,
  .module-grid,
  .signal-columns,
  .tech-grid,
  .cta-panel {
    grid-template-columns: 1fr;
  }

  .signal-stage {
    grid-template-columns: 1fr;
  }

  .hero-stat-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 920px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    left: 0;
    width: min(1320px, calc(100vw - 32px));
    margin: 0 auto;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: rgba(8, 14, 24, 0.94);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.18s ease, transform 0.18s ease;
  }

  .nav-links.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
}

@media (max-width: 760px) {
  .nav-shell,
  .hero-section,
  .section-block,
  .cta-section,
  .landing-footer {
    width: min(100vw - 20px, 100%);
  }

  .nav-shell {
    width: fit-content;
    max-width: calc(100vw - 20px);
    margin-left: 10px;
  }

  .hero-shell {
    padding-top: 60px;
    gap: 18px;
  }

  .hero-copy h1 {
    font-size: clamp(2.6rem, 12vw, 4rem);
  }

  .hero-title-main {
    font-size: clamp(2.6rem, 11vw, 4rem);
  }

  .hero-title-sub {
    font-size: clamp(1.02rem, 4.8vw, 1.45rem);
    white-space: normal;
  }

  .hero-description {
    white-space: normal;
    display: block;
  }

  .hero-actions,
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .signal-panel,
  .architecture-card,
  .module-card,
  .tech-card,
  .cta-panel,
  .cta-console {
    padding: 20px;
  }

  .signal-panel-head {
    flex-direction: column;
  }

  .cta-console-grid {
    grid-template-columns: 1fr;
  }

  .button-wide {
    min-width: 0;
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .feature-card::before,
  .feature-card::after {
    animation: none;
  }
}

@keyframes titleGradientFlow {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 200% 50%;
  }
}

@keyframes titlePulseGlow {
  0%,
  100% {
    filter: drop-shadow(0 0 0 rgba(0, 231, 255, 0));
    transform: translateY(0);
  }
  50% {
    filter: drop-shadow(0 0 14px rgba(0, 231, 255, 0.2));
    transform: translateY(-2px);
  }
}

@keyframes titleScan {
  0%,
  16% {
    transform: translateX(-120%) skewX(-18deg);
    opacity: 0;
  }
  28% {
    opacity: 0.9;
  }
  48% {
    transform: translateX(120%) skewX(-18deg);
    opacity: 0;
  }
  100% {
    transform: translateX(120%) skewX(-18deg);
    opacity: 0;
  }
}

@keyframes subtitleFloat {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.88;
  }
  50% {
    transform: translateY(-2px);
    opacity: 1;
  }
}

@keyframes subtitleSweep {
  0%,
  20% {
    transform: translate3d(-120%, -50%, 0);
    opacity: 0;
  }
  36% {
    opacity: 0.65;
  }
  56% {
    transform: translate3d(120%, -50%, 0);
    opacity: 0;
  }
  100% {
    transform: translate3d(120%, -50%, 0);
    opacity: 0;
  }
}

@keyframes blinkCaret {
  0%,
  48% {
    opacity: 1;
  }
  50%,
  100% {
    opacity: 0;
  }
}

@keyframes featureBorderRunner {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes featureRunnerPulse {
  0%,
  100% {
    opacity: 0.84;
    filter:
      drop-shadow(0 0 8px rgba(0, 231, 255, 0.12))
      drop-shadow(0 0 14px rgba(255, 95, 141, 0.1));
  }
  50% {
    opacity: 1;
    filter:
      drop-shadow(0 0 14px rgba(0, 231, 255, 0.22))
      drop-shadow(0 0 24px rgba(255, 95, 141, 0.18));
  }
}