:root {
  --color-primary: #024FA2;
  --color-primary-light: #0364CF;
  --color-secondary: #0A1628;
  --color-accent-cyan: #00D4FF;
  --color-accent-blue: #4A9EFF;
  --color-bg: #0B1426;
  --color-bg-deep: #060E1A;
  --color-bg-section: #0D1A30;
  --color-surface: rgba(255, 255, 255, 0.03);
  --color-surface-hover: rgba(255, 255, 255, 0.06);
  --color-text: #E8EDF5;
  --color-text-secondary: #C5D0E6;
  --color-muted: #8899B4;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-glow: rgba(0, 212, 255, 0.15);
  --color-glow-strong: rgba(0, 212, 255, 0.3);
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container-width: 1500px;
  --header-height: 80px;
  --section-padding: 120px;
  --grid-gap: 24px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 300ms;
  --duration-slow: 600ms;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 60px;
}

@media (max-width: 1199px) {
  .container {
    padding: 0 48px;
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 24px;
  }
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 700;
}

h2 {
  font-size: clamp(32px, 3.5vw, 48px);
}

h3 {
  font-size: clamp(20px, 2vw, 24px);
}

p {
  line-height: 1.7;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  box-shadow: 0 0 20px rgba(2, 79, 162, 0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-accent-cyan);
  color: var(--color-accent-cyan);
  box-shadow: 0 0 20px var(--color-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--color-accent-cyan);
  padding: 8px 0;
}

.btn-ghost:hover {
  color: var(--color-text);
}

.btn-ghost svg {
  transition: transform var(--duration) var(--ease);
}

.btn-ghost:hover svg {
  transform: translateX(4px);
}

.section-header {
  text-align: center;
  margin-bottom: 80px;
}

.section-label {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 700;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 17px;
  color: var(--color-muted);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
}

.glass-card {
  background: var(--color-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--duration) var(--ease);
}

.glass-card:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-glow-border);
  box-shadow: 0 8px 32px rgba(0, 212, 255, 0.08);
  transform: translateY(-4px);
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease), transform var(--duration-slow) var(--ease);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.header {
  position: fixed;
  top: 24px;
  left: 24px;
  right: 24px;
  height: var(--header-height);
  z-index: 1000;
  transition: background var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
  border-radius: var(--radius-lg);
}

.header.scrolled {
  top: 24px;
  left: 24px;
  right: 24px;
  border-radius: var(--radius-lg);
  background: rgba(11, 20, 38, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 16px 48px;
  border-radius: inherit;
  box-sizing: border-box;
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo img {
  height: 48px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  display: block;
  filter: invert(1) hue-rotate(180deg);
}

.nav {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-left: auto;
  margin-right: 24px;
}

.nav-link {
  font-size: 15px;
  font-weight: 400;
  color: var(--color-text-secondary);
  position: relative;
  padding: 8px 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-cyan);
  transition: width var(--duration) var(--ease);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.dropdown-arrow {
  transition: transform var(--duration) var(--ease);
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 180px;
  background: rgba(11, 20, 38, 0.96);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration) var(--ease);
  z-index: 100;
}

.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
  display: block;
  padding: 10px 20px;
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
}

.dropdown-menu a:hover {
  color: var(--color-accent-cyan);
  background: rgba(0, 212, 255, 0.05);
}

/* Mega Menu for 产品&业务 */
.dropdown-mega {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  width: 900px;
  max-width: 90vw;
  background: rgba(11, 20, 38, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration) var(--ease);
  z-index: 100;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 32px;
}

.nav-dropdown:hover .dropdown-mega {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-mega-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 0;
}

.dropdown-mega-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.dropdown-mega-col-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent-cyan);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(0, 212, 255, 0.15);
}

.dropdown-mega-col a {
  display: block;
  padding: 6px 0;
  font-size: 13px;
  color: var(--color-text-secondary);
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
}

.dropdown-mega-col a:hover {
  color: var(--color-accent-cyan);
  padding-left: 8px;
}

@media (max-width: 1199px) {
  .dropdown-mega {
    display: none;
  }
}

.header-cta {
  padding: 10px 24px;
  font-size: 14px;
  flex-shrink: 0;
}

.nav-icons {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-icon-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color var(--duration) var(--ease);
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  font-size: 14px;
  font-family: inherit;
}

.nav-icon-btn:hover {
  color: var(--color-accent-cyan);
}

.nav-search-btn {
  width: auto;
  padding: 6px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  gap: 6px;
}

.nav-search-btn:hover {
  color: var(--color-text);
}

.nav-search-btn .search-icon-svg {
  width: 16px;
  height: 16px;
}

/* Search Overlay Panel */
.search-overlay {
  position: fixed;
  top: calc(var(--header-height) + 24px);
  left: 24px;
  right: 24px;
  background: rgba(6, 14, 26, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 999;
  padding: 32px 60px;
  transform: translateY(-10px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration) var(--ease);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.search-overlay.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.search-overlay-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  padding-bottom: 16px;
}

.search-overlay-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.search-overlay-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--color-text);
  font-size: 18px;
  font-family: inherit;
  padding: 8px 0;
}

.search-overlay-input::placeholder {
  color: var(--color-muted);
}

.search-overlay-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  cursor: pointer;
  background: none;
  border: none;
  transition: color var(--duration) var(--ease);
}

.search-overlay-close:hover {
  color: var(--color-text);
}

.search-results {
  max-width: var(--container-width);
  margin: 0 auto;
  padding-top: 16px;
  max-height: 400px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.search-results::-webkit-scrollbar {
  width: 4px;
}

.search-results::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

.search-results-empty {
  text-align: center;
  padding: 32px 0;
  color: var(--color-muted);
  font-size: 15px;
}

.search-results-group {
  margin-bottom: 20px;
}

.search-results-group-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  transition: background var(--duration) var(--ease);
  text-decoration: none;
  color: inherit;
}

.search-result-item:hover {
  background: var(--color-surface-hover);
}

.search-result-item-img {
  width: 64px;
  height: 48px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.search-result-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.search-result-item-info {
  min-width: 0;
  flex: 1;
}

.search-result-item-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 4px;
}

.search-result-item-desc {
  font-size: 13px;
  color: var(--color-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-item-tag {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-accent-cyan);
  padding: 4px 10px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 12px;
  flex-shrink: 0;
}

@media (max-width: 767px) {
  .search-overlay {
    padding: 24px;
    top: 64px;
  }
  
  .search-overlay-input {
    font-size: 16px;
  }
}

.nav-lang {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
}

.nav-lang:hover {
  color: var(--color-accent-cyan);
  border-color: var(--color-accent-cyan);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  flex-shrink: 0;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--duration) var(--ease);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg-deep);
  padding: 100px 24px 40px;
  overflow-y: auto;
  z-index: 999;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu .nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.mobile-dropdown-menu {
  display: none;
  padding: 0 0 8px 16px;
}

.mobile-dropdown-menu.active {
  display: block;
}

.mobile-dropdown-menu a {
  display: block;
  font-size: 15px;
  color: var(--color-muted);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.mobile-dropdown-toggle .dropdown-arrow {
  transition: transform var(--duration) var(--ease);
}

.mobile-dropdown-toggle.active .dropdown-arrow {
  transform: rotate(180deg);
}

@media (max-width: 1199px) {
  .nav {
    display: none;
  }
  
  .nav-icons {
    display: none;
  }
  
  .header-cta {
    display: none;
  }
  
  .mobile-toggle {
    display: flex;
  }

  .header.scrolled {
    top: 24px;
    left: 24px;
    right: 24px;
    border-radius: var(--radius-lg);
    background: rgba(11, 20, 38, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  }
}

@media (max-width: 767px) {
  .logo img {
    height: 36px;
    max-width: 140px;
  }
  
  .header {
    top: 12px;
    left: 12px;
    right: 12px;
    height: 64px;
  }

  .header.scrolled {
    top: 12px;
    left: 12px;
    right: 12px;
    height: 64px;
    border-radius: var(--radius-lg);
    background: rgba(11, 20, 38, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border-bottom: none;
  }

  .header-inner {
    padding: 8px 16px;
  }

  .mobile-menu {
    padding: 80px 20px 40px;
  }
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero-bg-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-bg-video::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(6, 14, 26, 0.4) 0%, rgba(6, 14, 26, 0.3) 40%, rgba(6, 14, 26, 0.5) 100%);
  z-index: 1;
}

.hero-bg-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 1200px;
  padding: 0 40px;
}

.hero-title {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0;
  animation: heroFadeUp 1s var(--ease) 0.3s forwards;
}

.hero-desc {
  font-size: 17px;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  animation: heroFadeUp 1s var(--ease) 0.7s forwards;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  opacity: 0;
  animation: heroFadeUp 1s var(--ease) 0.9s forwards;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-muted);
  font-size: 12px;
  letter-spacing: 0.1em;
  opacity: 0;
  animation: heroFadeUp 1s var(--ease) 1.2s forwards;
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-accent-cyan), transparent);
  animation: scrollLine 2s var(--ease) infinite;
}

@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollLine {
  0%, 100% {
    opacity: 0.3;
    transform: scaleY(0.5);
  }
  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

@media (max-width: 767px) {
  .hero {
    min-height: 100svh;
  }

  .hero-content {
    padding: 0 20px;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-scroll {
    bottom: 24px;
  }
}

.tech-system {
  padding: var(--section-padding) 0;
  position: relative;
  background: var(--color-bg-deep);
  overflow: hidden;
  content-visibility: auto;
  contain-intrinsic-size: auto 800px;
}

.tech-system::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 60% 40% at 50% 50%, rgba(0, 212, 255, 0.03) 0%, transparent 70%);
  pointer-events: none;
}

.tech-visual {
  position: relative;
  z-index: 2;
  margin-bottom: 40px;
}

.tech-networks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.tech-network-card {
  position: relative;
  height: 360px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: default;
  transition: all var(--duration-slow) var(--ease);
  border: 1px solid var(--color-border);
}

.tech-network-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: 0 20px 60px rgba(0, 212, 255, 0.15);
}

.tech-network-card-center {
  transform: scale(1.04);
  z-index: 2;
  border-color: rgba(0, 212, 255, 0.3);
}

.tech-network-card-center:hover {
  transform: scale(1.04) translateY(-8px);
}

.tech-network-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transition: transform var(--duration-slow) var(--ease);
}

.tech-network-card:hover .tech-network-bg {
  transform: scale(1.08);
}

.tech-network-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(6, 14, 26, 0.95) 0%, rgba(6, 14, 26, 0.3) 50%, rgba(6, 14, 26, 0.1) 100%);
}

.tech-network-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px;
  z-index: 2;
}

.tech-network-content h3 {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent-cyan);
  margin-bottom: 10px;
}

.tech-network-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.tech-visual-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 16px 0;
}

.tech-bottom-tag {
  font-size: 13px;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

.tech-bottom-tag strong {
  color: var(--color-text-secondary);
  font-weight: 600;
}

.tech-bottom-divider {
  width: 1px;
  height: 16px;
  background: var(--color-border);
}

@media (max-width: 1199px) {
  .tech-network-card {
    height: 300px;
  }
  
  .tech-network-card-center {
    transform: none;
  }
  
  .tech-network-card-center:hover {
    transform: translateY(-8px);
  }
}

@media (max-width: 767px) {
  .tech-networks {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .tech-network-card {
    height: 260px;
  }
  
  .tech-network-content {
    padding: 24px;
  }
  
  .tech-network-content h3 {
    font-size: 24px;
  }
  
  .tech-visual-bottom {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
  
  .tech-bottom-divider {
    display: none;
  }
}

.tech-path-visual {
  position: relative;
  width: 100%;
  height: 200px;
  margin-bottom: 40px;
}

.tech-path-canvas {
  width: 100%;
  height: 100%;
}

.tech-path-bottom {
  text-align: center;
  font-size: 16px;
  color: var(--color-muted);
  line-height: 1.9;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

@media (max-width: 767px) {
  .tech-path-line {
    flex-direction: column;
    gap: 0;
  }

  .tech-line-divider {
    width: 2px;
    height: 30px;
    background: linear-gradient(180deg, transparent, var(--color-accent-cyan), transparent);
  }

  .tech-line-segment {
    min-width: auto;
    width: 100%;
    padding: 24px 20px;
  }
}

.low-altitude {
  padding: var(--section-padding) 0;
  position: relative;
  background: var(--color-bg);
  overflow: hidden;
  content-visibility: auto;
  contain-intrinsic-size: auto 800px;
}

.low-altitude-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/low-altitude-drone.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.06;
  pointer-events: none;
}

.low-alt-diagonal {
  position: relative;
  z-index: 2;
  overflow: hidden;
  padding: 20px 0;
}

.low-alt-diagonal-track {
  display: flex;
  align-items: stretch;
  gap: 20px;
  position: relative;
  padding: 40px 0;
}

.low-alt-diagonal-arrow {
  position: absolute;
  top: 50%;
  left: 60px;
  right: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent-cyan) 10%, var(--color-accent-cyan) 90%, transparent);
  opacity: 0.3;
  z-index: 0;
}

.low-alt-diagonal-arrow::after {
  content: '';
  position: absolute;
  right: -2px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 10px solid var(--color-accent-cyan);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  opacity: 0.5;
}

.low-alt-diag-card {
  flex: 1;
  min-width: 0;
  min-height: 380px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration) var(--ease);
  transform: skewX(-4deg);
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
}

.low-alt-diag-card:hover {
  transform: skewX(-4deg) translateY(-8px);
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
  z-index: 10;
}

.low-alt-diag-img {
  aspect-ratio: auto;
  flex: 1;
  min-height: 220px;
  overflow: hidden;
  position: relative;
}

.low-alt-diag-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease);
}

.low-alt-diag-card:hover .low-alt-diag-img img {
  transform: scale(1.08);
}

.low-alt-diag-img::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(to top, var(--color-surface), transparent);
}

.low-alt-diag-body {
  padding: 20px 20px 28px;
  transform: skewX(4deg);
}

.low-alt-diag-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.low-alt-diag-body p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.5;
}

@media (max-width: 1199px) {
  .low-alt-diag-card {
    transform: skewX(-3deg);
  }
  
  .low-alt-diag-card:hover {
    transform: skewX(-3deg) translateY(-8px);
  }
  
  .low-alt-diag-body {
    transform: skewX(3deg);
  }
  
  .low-alt-diag-img {
    min-height: 180px;
  }
  
  .low-alt-diag-card {
    min-height: 320px;
  }
}

@media (max-width: 767px) {
  .low-alt-diagonal-track {
    flex-direction: column;
    gap: 16px;
    padding: 20px 0;
  }
  
  .low-alt-diagonal-arrow {
    display: none;
  }
  
  .low-alt-diag-card {
    transform: none;
    margin: 0;
    width: 100%;
  }
  
  .low-alt-diag-card:hover {
    transform: translateY(-4px);
  }
  
  .low-alt-diag-body {
    transform: none;
  }
}

.products {
  padding: var(--section-padding) 0;
  background: var(--color-bg-section);
  position: relative;
  content-visibility: auto;
  contain-intrinsic-size: auto 700px;
}

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

.products-lr {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 40px;
  align-items: start;
}

.products-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.products-tab {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  position: relative;
}

.products-tab::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-accent-cyan);
  border-radius: 0 2px 2px 0;
  transform: scaleY(0);
  transition: transform var(--duration) var(--ease);
}

.products-tab:hover,
.products-tab.active {
  background: var(--color-surface-hover);
  border-color: rgba(0, 212, 255, 0.2);
}

.products-tab.active::before {
  transform: scaleY(1);
}

.products-tab-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.products-tab.active .products-tab-name {
  color: var(--color-text);
}

.products-right {
  position: relative;
  min-height: 400px;
}

.products-panel {
  display: none;
  animation: panelFadeIn 0.4s var(--ease);
}

.products-panel.active {
  display: block;
}

@keyframes panelFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.products-panel-img {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/9;
}

.products-panel-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.products-panel-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(6, 14, 26, 0.3) 0%, rgba(6, 14, 26, 0.5) 40%, rgba(6, 14, 26, 0.85) 100%);
  transition: background var(--duration) var(--ease);
}

.products-panel-img:hover .products-panel-overlay {
  background: linear-gradient(135deg, rgba(6, 14, 26, 0.2) 0%, rgba(6, 14, 26, 0.4) 40%, rgba(6, 14, 26, 0.8) 100%);
}

.products-panel-text {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px;
  z-index: 2;
}

.products-panel-text h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.products-panel-text p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

@media (max-width: 1199px) {
  .products-lr {
    grid-template-columns: 200px 1fr;
    gap: 24px;
  }
}

@media (max-width: 767px) {
  .products-lr {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .products-left {
    flex-direction: row;
    overflow-x: auto;
    gap: 8px;
    padding-bottom: 8px;
  }

  .products-tab {
    flex-shrink: 0;
    padding: 12px 16px;
  }

  .products-panel-text {
    padding: 20px;
  }

  .products-panel-text h3 {
    font-size: 20px;
  }
}

.solutions {
  padding: var(--section-padding) 0;
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
  content-visibility: auto;
  contain-intrinsic-size: auto 600px;
}

.solutions-scroll-wrapper {
  position: relative;
  padding: 0 60px;
  cursor: grab;
  overflow: hidden;
}

.solutions-scroll-wrapper:active {
  cursor: grabbing;
}

.solutions-scroll-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 20px 0;
}

.solutions-scroll-track::-webkit-scrollbar {
  display: none;
}

.solution-scroll-card {
  flex: 0 0 320px;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration) var(--ease);
  text-decoration: none;
  color: inherit;
}

.solution-scroll-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 212, 255, 0.2);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}

.solution-scroll-img {
  aspect-ratio: 16/10;
  overflow: hidden;
}

.solution-scroll-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease);
}

.solution-scroll-card:hover .solution-scroll-img img {
  transform: scale(1.05);
}

.solution-scroll-info {
  padding: 20px;
}

.solution-scroll-info h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.solution-scroll-info p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.5;
}

@media (max-width: 767px) {
  .solutions-scroll-wrapper {
    padding: 0 24px;
  }
  
  .solution-scroll-card {
    flex: 0 0 280px;
  }
}

.cases {
  padding: 0;
  background: var(--color-bg-deep);
  position: relative;
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

.cases-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.cases-track {
  position: relative;
  width: 100%;
  height: 500px;
}

.cases-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease);
}

.cases-slide.active {
  opacity: 1;
  z-index: 1;
}

.cases-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cases-slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(6, 14, 26, 0.8) 0%, rgba(6, 14, 26, 0.3) 50%, transparent 100%);
}

.cases-slide-content {
  position: absolute;
  bottom: 80px;
  left: 60px;
  z-index: 2;
  max-width: 500px;
}

.cases-slide-content h3 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.cases-slide-content p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.cases-controls {
  position: absolute;
  bottom: 30px;
  left: 60px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 10;
}

.cases-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--duration) var(--ease);
}

.cases-btn:hover {
  background: rgba(0, 212, 255, 0.2);
  border-color: var(--color-accent-cyan);
  color: var(--color-accent-cyan);
}

.cases-dots {
  display: flex;
  gap: 8px;
}

.cases-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: all var(--duration) var(--ease);
}

.cases-dot.active {
  background: var(--color-accent-cyan);
  width: 24px;
  border-radius: 4px;
}

@media (max-width: 767px) {
  .cases-track {
    height: 400px;
  }
  
  .cases-slide-content {
    bottom: 70px;
    left: 24px;
    right: 24px;
  }
  
  .cases-controls {
    left: 24px;
  }
}

.news {
  padding: var(--section-padding) 0;
  background: var(--color-bg);
  content-visibility: auto;
  contain-intrinsic-size: auto 700px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration) var(--ease);
}

.news-card:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-glow-border);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 212, 255, 0.08);
}

.news-image {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease);
}

.news-card:hover .news-image img {
  transform: scale(1.05);
}

.news-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text);
  padding: 4px 12px;
  background: rgba(2, 79, 162, 0.9);
  border-radius: 20px;
  backdrop-filter: blur(10px);
}

.news-content {
  padding: 24px;
}

.news-date {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.news-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-excerpt {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-more {
  text-align: center;
  margin-top: 48px;
}

@media (max-width: 1199px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
}

.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-bg-deep) 100%);
  position: relative;
  overflow: hidden;
  content-visibility: auto;
  contain-intrinsic-size: auto 400px;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(74, 158, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-desc {
  font-size: 17px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.cta-buttons .btn-primary {
  background: var(--color-text);
  color: var(--color-primary);
  border-color: var(--color-text);
}

.cta-buttons .btn-primary:hover {
  background: var(--color-accent-cyan);
  border-color: var(--color-accent-cyan);
  color: var(--color-bg);
}

@media (max-width: 767px) {
  .cta-buttons {
    flex-direction: column;
  }
}

.footer {
  background: var(--color-bg-deep);
  padding: 80px 0 40px;
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand {
  max-width: 320px;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 0;
  background: transparent;
  margin-bottom: 20px;
}

.footer-logo img {
  height: 36px;
  width: auto;
  display: block;
  filter: invert(1) hue-rotate(180deg);
}

.footer-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 24px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  transition: all var(--duration) var(--ease);
}

.footer-social a:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-accent-cyan);
  color: var(--color-accent-cyan);
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 14px;
  color: var(--color-muted);
  transition: color var(--duration) var(--ease);
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--color-muted);
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent-cyan);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--color-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: var(--color-muted);
  transition: color var(--duration) var(--ease);
}

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

@media (max-width: 1199px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  
  .footer-brand {
    grid-column: span 2;
    max-width: none;
  }
}

@media (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-brand {
    grid-column: span 1;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}

/* Mobile horizontal card scroll */
@media (max-width: 767px) {
  .news-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 16px;
    padding-bottom: 8px;
    margin: 0 -24px;
    padding-left: 24px;
    padding-right: 24px;
  }

  .news-grid::-webkit-scrollbar {
    display: none;
  }

  .news-card {
    flex: 0 0 280px;
    scroll-snap-align: start;
  }

  .news-more {
    margin-top: 32px;
  }
}