:root {
  --bg-primary:       #04060F;
  --bg-surface:       #080C18;
  --bg-surface-2:     #0C1120;
  --bg-surface-3:     #111828;
  --bg-card:          #0E1422;
  --bg-card-hover:    #131A2E;

  --border-subtle:    #1A2340;
  --border-mid:       #1E2B45;
  --border-bright:    #243355;
  --border-glow:      rgba(0, 180, 255, 0.25);

  --accent-blue:      #2563EB;
  --accent-cyan:      #00D4FF;
  --accent-cyan-dim:  rgba(0, 212, 255, 0.15);
  --accent-cyan-glow: rgba(0, 212, 255, 0.08);
  --accent-indigo:    #4F46E5;

  --text-primary:     #E2E8F0;
  --text-secondary:   #94A3B8;
  --text-muted:       #64748B;
  --text-dim:         #3A4A62;
  --text-white:       #FFFFFF;

  --font-sans:        'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono:        'Consolas', 'Courier New', monospace;

  --radius-sm:        4px;
  --radius-md:        8px;
  --radius-lg:        12px;
  --radius-xl:        20px;

  --shadow-card:      0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow:      0 0 32px rgba(0, 212, 255, 0.12);
  --shadow-glow-sm:   0 0 16px rgba(0, 212, 255, 0.08);

  --transition-fast:  0.18s ease;
  --transition-base:  0.3s ease;
  --transition-slow:  0.5s ease;

  --z-nav:            1000;
  --z-overlay:        900;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-surface); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-blue); }

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  position: relative;
  padding: 100px 0;
}

.lab-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.lab-label::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.section-heading {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-heading em {
  font-style: normal;
  color: var(--accent-cyan);
}
.section-subheading {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 56px;
}

.section-divider {
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), transparent);
  margin-bottom: 24px;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-nav);
  background: rgba(4, 6, 15, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: border-color var(--transition-base), background var(--transition-base);
}
.header.scrolled {
  background: rgba(4, 6, 15, 0.95);
  border-bottom-color: var(--border-mid);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  max-width: 1400px;
  margin: 0 auto;
  height: 64px;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav__logo {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: -0.02em;
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.25);
}
.nav__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: -0.01em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav__link {
  padding: 6px 13px;
  font-size: 13px;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}
.nav__link:hover,
.nav__link.active {
  color: var(--text-white);
  background: rgba(37, 99, 235, 0.12);
}
.nav__link.active {
  color: var(--accent-cyan);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.nav__toggle.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 5px); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -5px); }

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26, 35, 64, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 35, 64, 0.5) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 80%);
}

.hero__glow-1 {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
  top: -100px; left: -100px;
  pointer-events: none;
}
.hero__glow-2 {
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
  bottom: 0; right: 5%;
  pointer-events: none;
}

.hero__scan {
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0.4;
  animation: scan-line 6s linear infinite;
}
@keyframes scan-line {
  0% { top: 0; }
  100% { top: 100%; }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--border-bright);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 28px;
  background: rgba(14, 20, 34, 0.6);
}
.hero__badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 6px #10B981;
  animation: pulse-dot 2s infinite;
}

.hero__title {
  font-size: clamp(36px, 5.5vw, 64px);
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.hero__title-accent {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__title-sub {
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 28px;
  letter-spacing: -0.01em;
}
.hero__desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 600px;
  margin-bottom: 48px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition-base);
  white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(135deg, var(--accent-blue), #1D4ED8);
  color: var(--text-white);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.35);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(37, 99, 235, 0.5);
}
.btn--outline {
  border: 1px solid var(--border-bright);
  color: var(--text-secondary);
  background: rgba(14, 20, 34, 0.6);
}
.btn--outline:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: var(--accent-cyan-glow);
}
.btn--cyan {
  background: linear-gradient(135deg, #0891B2, var(--accent-cyan));
  color: #000;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}
.btn--cyan:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 212, 255, 0.45);
}

.hero__stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero__stat-value {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-white);
  letter-spacing: -0.02em;
}
.hero__stat-value span {
  color: var(--accent-cyan);
}
.hero__stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero__visual {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 420px;
  display: none;
}
@media (min-width: 1100px) {
  .hero__visual { display: block; }
  .hero__content { max-width: 620px; }
}

.readout {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card), var(--shadow-glow);
  position: relative;
  overflow: hidden;
}
.readout::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
}
.readout__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.readout__title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.readout__status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #10B981;
}
.readout__status::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 6px #10B981;
  animation: pulse-dot 2s infinite;
}

.readout__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.readout__row:last-child { border-bottom: none; }
.readout__key {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}
.readout__val {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-cyan);
  font-weight: 500;
}
.readout__bar {
  margin-top: 16px;
}
.readout__bar-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
}
.readout__bar-track {
  height: 4px;
  background: var(--bg-surface-3);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 10px;
}
.readout__bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  border-radius: 2px;
  position: relative;
}
.readout__bar-fill::after {
  content: '';
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 8px;
  background: white;
  opacity: 0.4;
  border-radius: 2px;
  animation: bar-glow 2s ease-in-out infinite;
}
@keyframes bar-glow {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

.lab-section {
  background: var(--bg-surface);
}
.lab-section::before {
  content: '';
  position: absolute;
  left: 0; right: 0;
  top: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-bright), transparent);
}
.lab-section::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-bright), transparent);
}

.lab-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 900px) {
  .lab-grid { grid-template-columns: 1fr; gap: 40px; }
}

.lab-specs {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
}
.lab-spec {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-fast);
}
.lab-spec:last-child { border-bottom: none; }
.lab-spec:hover { background: var(--bg-card-hover); }
.lab-spec__num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  padding-top: 3px;
  min-width: 24px;
  letter-spacing: 0.05em;
}
.lab-spec__content {}
.lab-spec__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.lab-spec__desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

.lab-image-wrap {
  position: relative;
}
.lab-image-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-mid);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}
.lab-image-frame img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  object-position: center;
}
.lab-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12) 0%, transparent 60%);
}
.lab-image-tag {
  position: absolute;
  bottom: 16px;
  left: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(4, 6, 15, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-cyan);
  letter-spacing: 0.06em;
}
.lab-corner {
  position: absolute;
  width: 20px; height: 20px;
  border-color: var(--accent-cyan);
  border-style: solid;
  opacity: 0.6;
}
.lab-corner--tl { top: 12px; left: 12px; border-width: 2px 0 0 2px; }
.lab-corner--tr { top: 12px; right: 12px; border-width: 2px 2px 0 0; }
.lab-corner--bl { bottom: 12px; left: 12px; border-width: 0 0 2px 2px; }
.lab-corner--br { bottom: 12px; right: 12px; border-width: 0 2px 2px 0; }

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}
.cap-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  opacity: 0;
  transition: opacity var(--transition-base);
}
.cap-card:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-sm);
}
.cap-card:hover::before { opacity: 1; }

.cap-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-cyan-dim);
  border: 1px solid rgba(0, 212, 255, 0.2);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  color: var(--accent-cyan);
}
.cap-icon svg { width: 22px; height: 22px; }

.cap-index {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}
.cap-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.cap-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.65;
}

.features-section {
  background: var(--bg-surface);
}
.features-section::before, .features-section::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-bright), transparent);
}
.features-section::before { top: 0; }
.features-section::after { bottom: 0; }

.feature-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 88px;
}
.feature-item:last-child { margin-bottom: 0; }
.feature-item--reverse { direction: rtl; }
.feature-item--reverse > * { direction: ltr; }
@media (max-width: 860px) {
  .feature-item,
  .feature-item--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 32px;
  }
}

.feature-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-mid);
  box-shadow: var(--shadow-card);
}
.feature-visual img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}
.feature-visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.07), transparent);
}
.feature-anno {
  position: absolute;
  top: 20px; right: 20px;
  background: rgba(4, 6, 15, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.feature-anno span {
  display: block;
  color: var(--accent-cyan);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 2px;
  letter-spacing: -0.02em;
}

.feature-content {}
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.feature-list li::before {
  content: '›';
  color: var(--accent-cyan);
  font-size: 16px;
  line-height: 1.4;
  flex-shrink: 0;
  font-weight: 700;
}

.download-hero {
  text-align: center;
  margin-bottom: 64px;
}
.download-hero .section-subheading {
  margin: 0 auto 0;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.dl-card {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}
.dl-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  opacity: 0;
  transition: opacity var(--transition-base);
}
.dl-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-sm);
}
.dl-card:hover::after { opacity: 1; }

.dl-platform-icon {
  width: 56px; height: 56px;
  margin: 0 auto 20px;
  background: var(--bg-surface-3);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-mid);
  color: var(--text-secondary);
}
.dl-platform-icon svg { width: 26px; height: 26px; }
.dl-platform-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 6px;
}
.dl-platform-version {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 20px;
  letter-spacing: 0.06em;
}
.dl-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 10px 16px;
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(37, 99, 235, 0.3);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-cyan);
  transition: all var(--transition-fast);
  cursor: pointer;
}
.dl-btn:hover {
  background: rgba(37, 99, 235, 0.22);
  border-color: var(--accent-cyan);
}

.download-note {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 24px;
  background: rgba(0, 212, 255, 0.04);
  border: 1px solid rgba(0, 212, 255, 0.12);
  border-radius: var(--radius-lg);
  max-width: 700px;
  margin: 0 auto;
}
.download-note__icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent-cyan-dim);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: var(--accent-cyan);
}
.download-note__text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
}
.download-note__text strong {
  display: block;
  color: var(--text-primary);
  margin-bottom: 4px;
  font-size: 14px;
}

.security-section {
  background: var(--bg-surface);
}
.security-section::before, .security-section::after {
  content: '';
  position: absolute;
  left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-bright), transparent);
}
.security-section::before { top: 0; }
.security-section::after { bottom: 0; }

.security-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 900px) {
  .security-layout { grid-template-columns: 1fr; gap: 40px; }
}

.security-items {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.security-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}
.security-item:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}
.security-item__icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  background: rgba(79, 70, 229, 0.15);
  border: 1px solid rgba(79, 70, 229, 0.25);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: #818CF8;
}
.security-item__icon svg { width: 18px; height: 18px; }
.security-item__body {}
.security-item__title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 4px;
}
.security-item__desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

.security-metrics {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}
.security-metrics__title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.security-metric {
  margin-bottom: 20px;
}
.security-metric:last-child { margin-bottom: 0; }
.security-metric__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.security-metric__name {
  font-size: 13px;
  color: var(--text-secondary);
}
.security-metric__score {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-cyan);
  font-weight: 500;
}
.security-metric__bar {
  height: 6px;
  background: var(--bg-surface-3);
  border-radius: 3px;
  overflow: hidden;
}
.security-metric__fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent-indigo), var(--accent-cyan));
}

.security-image-wrap {
  margin-top: 32px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-mid);
}
.security-image-wrap img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.help-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 760px) {
  .help-grid { grid-template-columns: 1fr; }
}

.help-card {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition-base);
}
.help-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow-sm);
}
.help-card__eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent-cyan);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.help-card__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.help-card__body {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
}
.help-card__body p + p { margin-top: 12px; }
.help-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.help-tag {
  padding: 4px 10px;
  background: var(--bg-surface-3);
  border: 1px solid var(--border-mid);
  border-radius: 100px;
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.faq-section {
  background: var(--bg-surface);
}
.faq-section::before, .faq-section::after {
  content: '';
  position: absolute;
  left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-bright), transparent);
}
.faq-section::before { top: 0; }
.faq-section::after { bottom: 0; }

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}
.faq-item.open {
  border-color: var(--border-glow);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  gap: 16px;
  user-select: none;
}
.faq-question__text {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  flex: 1;
}
.faq-question__icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-bright);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
  color: var(--text-muted);
}
.faq-item.open .faq-question__icon {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-answer__inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.brand-section {
  position: relative;
}
.brand-bg-img {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.brand-bg-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.06;
}
.brand-content {
  position: relative;
  z-index: 1;
}

.brand-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}
@media (max-width: 860px) {
  .brand-grid { grid-template-columns: 1fr; }
}

.brand-card {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-base);
}
.brand-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-sm);
}
.brand-card__num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}
.brand-card__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 12px;
}
.brand-card__body {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

.brand-timeline {
  margin-top: 56px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-xl);
}
.brand-timeline__heading {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.timeline-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0;
  position: relative;
}
.timeline-items::before {
  content: '';
  position: absolute;
  top: 8px; left: 0; right: 0;
  height: 1px;
  background: var(--border-mid);
}
.timeline-item {
  padding: 0 16px 0 0;
  position: relative;
  padding-top: 28px;
}
.timeline-dot {
  position: absolute;
  top: 0; left: 0;
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2px solid var(--border-mid);
  background: var(--bg-card);
}
.timeline-item.active .timeline-dot {
  border-color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.4);
}
.timeline-year {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-cyan);
  margin-bottom: 6px;
  font-weight: 600;
}
.timeline-event {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.55;
}

.contact-section {
  background: var(--bg-surface);
}
.contact-section::before {
  content: '';
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-bright), transparent);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 760px) {
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
}

.contact-info {}
.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}
.contact-channel {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}
.contact-channel:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}
.contact-channel__icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  background: var(--accent-cyan-dim);
  border: 1px solid rgba(0, 212, 255, 0.2);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: var(--accent-cyan);
}
.contact-channel__icon svg { width: 18px; height: 18px; }
.contact-channel__label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 2px;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}
.contact-channel__value {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-xl);
  padding: 32px;
}
.contact-form__title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.form-group {
  margin-bottom: 16px;
}
.form-label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}
.form-input,
.form-textarea {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-surface-3);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-input:focus,
.form-textarea:focus {
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.08);
}
.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-dim);
}
.form-textarea { resize: vertical; min-height: 100px; }
.form-submit {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, var(--accent-blue), #1D4ED8);
  color: var(--text-white);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition-base);
  margin-top: 8px;
}
.form-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 40px 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer__logo {
  width: 30px; height: 30px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-white);
}
.footer__name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}
.footer__copy {
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--font-mono);
}
.footer__links {
  display: flex;
  gap: 20px;
}
.footer__link {
  font-size: 12px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.footer__link:hover { color: var(--text-secondary); }

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

@media (max-width: 1080px) {
  .nav__toggle { display: flex; }
  .nav__links {
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: rgba(4, 6, 15, 0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    gap: 0;
    padding: 16px 0 24px;
    border-bottom: 1px solid var(--border-mid);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }
  .nav__links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav__link {
    padding: 13px 24px;
    font-size: 14px;
    border-radius: 0;
    display: block;
    width: 100%;
  }
}

.text-center { text-align: center; }
.mb-0 { margin-bottom: 0 !important; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}