/* ===== CSS Variables ===== */
:root {
  --primary: #0ea5e9;
  --primary-dark: #0369a1;
  --primary-light: #e0f2fe;
  --accent: #f59e0b;
  --accent-light: #fef3c7;
  --bg: #f8fafc;
  --bg-white: #ffffff;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-light: #94a3b8;
  --border: #e2e8f0;
  --gradient-primary: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
  --gradient-hero: linear-gradient(160deg, #0c1929 0%, #0e2a47 40%, #0c3558 70%, #0a2540 100%);
  --gradient-card: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.05) 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 30px rgba(14,165,233,0.3);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-60px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(60px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

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

@keyframes wave {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }
.animate-on-scroll:nth-child(5) { transition-delay: 0.4s; }

/* ===== Header / Navigation ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226,232,240,0.5);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
  font-weight: 700;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.5rem 0;
  position: relative;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition);
  border-radius: 1px;
}

.nav-link:hover {
  color: var(--primary);
}

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

.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.nav-dropdown-trigger svg {
  width: 16px;
  height: 16px;
  transition: var(--transition);
}

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

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 280px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  padding: 0.5rem;
  z-index: 100;
}

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

.nav-dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  transition: var(--transition);
  font-size: 0.9rem;
}

.nav-dropdown-item:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.nav-dropdown-item .item-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  flex-shrink: 0;
}

.nav-dropdown-item:hover .item-icon {
  background: var(--primary);
  color: white;
}

.nav-dropdown-item .item-text strong {
  display: block;
  font-weight: 600;
  margin-bottom: 2px;
}

.nav-dropdown-item .item-text span {
  font-size: 0.8rem;
  color: var(--text-light);
}

/* Mobile menu */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* Sound wave animation */
.sound-waves {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 200%;
  height: 100%;
  opacity: 0.08;
}

.sound-waves svg {
  width: 100%;
  height: 100%;
}

/* Grid pattern */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(14,165,233,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,165,233,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

/* Glowing orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: float 8s ease-in-out infinite;
}

.hero-orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(14,165,233,0.3) 0%, transparent 70%);
  top: 10%;
  right: 15%;
  animation-delay: 0s;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(99,102,241,0.25) 0%, transparent 70%);
  bottom: 20%;
  left: 10%;
  animation-delay: -3s;
}

.hero-orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(245,158,11,0.2) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  animation-delay: -5s;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
  padding: 2rem;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 2rem;
  backdrop-filter: blur(10px);
  animation: fadeInUp 0.8s ease forwards;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-title .highlight {
  background: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-slogan {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 1.5rem;
  letter-spacing: 0.1em;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-desc {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.8s both;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 20px rgba(14,165,233,0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(14,165,233,0.5);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg-white);
  color: var(--primary);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===== Section Styles ===== */
.section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section-label::before,
.section-label::after {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--text);
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== About Section ===== */
.about-section {
  background: var(--bg-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-content h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.about-content p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.stat-card {
  text-align: center;
  padding: 1.5rem;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.stat-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.about-visual {
  position: relative;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-visual-inner {
  width: 100%;
  height: 100%;
  background: var(--gradient-hero);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  gap: 1.5rem;
}

.about-visual-logo {
  max-width: 120px;
  max-height: 120px;
  z-index: 1;
  position: relative;
}

.about-visual-text {
  font-size: 2rem;
  color: rgba(255,255,255,0.9);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.15em;
  z-index: 1;
  position: relative;
}

.about-visual-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(14,165,233,0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,165,233,0.1) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ===== Features / Tech Section ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  padding: 2rem;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  color: white;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1);
}

.feature-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== Products Section ===== */
.products-section {
  background: var(--bg-white);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
}

.product-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.product-card-image {
  height: 240px;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  cursor: pointer;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-card-image img {
  max-height: 180px;
  width: auto;
  object-fit: contain;
  transition: var(--transition);
  z-index: 1;
  position: relative;
}

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

.product-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
}

.product-card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 14px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  font-size: 0.75rem;
  color: white;
  font-weight: 600;
  z-index: 2;
  letter-spacing: 0.05em;
}

.product-card-content {
  padding: 1.5rem;
}

.product-card-content h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.product-card-content .subtitle {
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.product-card-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  line-height: 1;
}

.product-card-link svg {
  transition: var(--transition);
  width: 16px;
  height: 16px;
}

.product-card-link:hover {
  gap: 12px;
}

/* ===== Application Section ===== */
.applications-section {
  background: var(--gradient-hero);
  color: white;
  position: relative;
  overflow: hidden;
}

.applications-section .section-label {
  color: var(--accent);
}

.applications-section .section-label::before,
.applications-section .section-label::after {
  background: var(--accent);
}

.applications-section .section-title {
  color: white;
}

.applications-section .section-desc {
  color: rgba(255,255,255,0.7);
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.app-card {
  padding: 2rem 1.5rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.app-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-5px);
  border-color: rgba(255,255,255,0.2);
}

.app-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.app-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: white;
}

.app-card p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}

/* ===== Contact Section ===== */
.contact-section {
  background: var(--bg-white);
}

.contact-center {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.contact-center-item {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

@media (max-width: 768px) {
  .contact-center {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

.contact-center-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.contact-center-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-center-text strong {
  color: var(--text);
  font-size: 1.05rem;
}

.contact-center-text span,
.contact-center-text a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--transition);
}

.contact-center-text a:hover {
  color: var(--primary);
}

.contact-form {
  background: var(--bg);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.contact-form h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.contact-visual-text {
  color: rgba(255,255,255,0.8);
  font-size: 1.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  z-index: 1;
}

.contact-map {
  background: var(--bg);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.contact-map h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.map-container {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
}

.map-container iframe {
  display: block;
  width: 100%;
  height: 400px;
  border: none;
  border-radius: 12px;
}

.map-address {
  margin-top: 1rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  text-align: center;
}

.form-hint {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.form-placeholder {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-field label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 1rem;
  background: var(--bg-white);
  color: var(--text);
  transition: var(--transition);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--text-light);
}

.form-field input:disabled,
.form-field textarea:disabled {
  background: #f5f7fa;
  cursor: not-allowed;
  opacity: 0.8;
}

.form-field textarea {
  resize: vertical;
  min-height: 100px;
}

.contact-form .btn {
  display: block;
  width: 200px;
  margin: 1rem auto 0;
  text-align: center;
}

.form-status {
  text-align: center;
  margin-top: 1rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.contact-form input:disabled,
.contact-form textarea:disabled,
.contact-form button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.contact-form .form-field input,
.contact-form .form-field textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 1rem;
  background: var(--bg-white);
  color: var(--text);
  transition: var(--transition);
}

.contact-form .form-field textarea {
  resize: vertical;
  min-height: 100px;
}

/* ===== Footer ===== */
.footer {
  background: #0c1929;
  color: rgba(255,255,255,0.6);
  padding: 3rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: white;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
}

.footer-logo .logo-icon {
  width: 32px;
  height: 32px;
  font-size: 0.9rem;
}

.footer p {
  font-size: 0.9rem;
}

.icp-info {
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.icp-info a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color 0.3s ease;
}

.icp-info a:hover {
  color: rgba(255, 255, 255, 0.8);
}

/* ===== Product Detail Page ===== */
.product-detail {
  padding-top: 72px;
}

.product-hero {
  background: var(--gradient-hero);
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.product-hero .hero-grid {
  opacity: 0.5;
}

.product-hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.product-hero-info {
  color: white;
}

.product-hero-info .breadcrumb {
  display: flex;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 1.5rem;
}

.product-hero-info .breadcrumb a:hover {
  color: white;
}

.product-hero-info h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 0.75rem;
}

.product-hero-info .tagline {
  font-size: 1.1rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.product-hero-info .desc {
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
  margin-bottom: 2rem;
}

/* Image Carousel */
.product-carousel {
  position: relative;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.product-carousel img {
  max-height: 80%;
  max-width: 80%;
  object-fit: contain;
  opacity: 1 !important;
  transition: opacity 0.3s ease;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.2);
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 2;
  backdrop-filter: blur(10px);
}

.carousel-btn:hover {
  background: rgba(255,255,255,0.25);
}

.carousel-btn.prev { left: 16px; }
.carousel-btn.next { right: 16px; }

.carousel-dots {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: var(--transition);
}

.carousel-dot.active {
  background: white;
  transform: scale(1.2);
}

/* Product Sections */
.product-section {
  padding: 5rem 0;
}

.product-section.alt-bg {
  background: var(--bg-white);
}

.product-section-title {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.product-section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  max-width: 800px;
  margin-bottom: 3rem;
}

.features-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-item {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.feature-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.feature-item-num {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--gradient-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-display);
  flex-shrink: 0;
}

.feature-item-text {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Specs Table */
.specs-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.specs-table th,
.specs-table td {
  padding: 1rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.specs-table th {
  background: var(--bg-white);
  font-weight: 600;
  color: var(--text);
  font-size: 0.95rem;
  width: 250px;
}

.specs-table td {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.specs-table tr:last-child th,
.specs-table tr:last-child td {
  border-bottom: none;
}

.specs-group-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1rem;
  margin-top: 2rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}

.specs-group-title:first-child {
  margin-top: 0;
}

/* Connection Diagram */
.connection-diagram {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}

.connection-diagram:hover {
  box-shadow: var(--shadow-lg);
}

.connection-diagram img {
  width: 100%;
  object-fit: contain;
}

/* ===== Lightbox ===== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0,0,0,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  cursor: pointer;
  backdrop-filter: blur(10px);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-img {
  max-width: 90%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 0 60px rgba(0,0,0,0.5);
  cursor: grab;
  transition: transform 0.2s ease;
  user-select: none;
  -webkit-user-drag: none;
}

.lightbox-img.zoomed {
  max-width: none;
  max-height: none;
  cursor: grab;
}

.lightbox-img.dragging {
  cursor: grabbing;
}

.lightbox-zoom-hint {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.5);
  font-size: 0.85rem;
  pointer-events: none;
  transition: opacity 0.3s;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.2);
}

/* ===== Product List Page ===== */
.products-page-header {
  background: var(--gradient-hero);
  padding: 8rem 0 5rem;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.products-page-header .hero-grid {
  opacity: 0.3;
}

.products-page-header h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin-bottom: 1rem;
  position: relative;
  z-index: 2;
}

.products-page-header p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.products-page-content {
  padding: 5rem 0;
}

.products-page-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 2.5rem;
}

.products-page-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.products-page-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.products-page-card-image {
  height: 280px;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.products-page-card-image img {
  max-height: 200px;
  width: auto;
  object-fit: contain;
  transition: var(--transition);
}

.products-page-card:hover .products-page-card-image img {
  transform: scale(1.08);
}

.products-page-card-content {
  padding: 2rem;
}

.products-page-card-content .tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.products-page-card-content h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.products-page-card-content .subtitle {
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 1rem;
}

.products-page-card-content p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

/* ===== About Page ===== */
.about-page-hero {
  background: var(--gradient-hero);
  padding: 8rem 0 5rem;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.about-page-hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin-bottom: 1rem;
  position: relative;
  z-index: 2;
}

.about-page-hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.about-page-content {
  padding: 5rem 0;
}

.about-page-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
}

.about-page-text h2 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.about-page-text p {
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 1.5rem;
}

.about-page-sidebar {
  position: sticky;
  top: 100px;
}

.about-page-sidebar h3 {
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.about-info-card {
  padding: 1.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.about-info-card .label {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 4px;
}

.about-info-card .value {
  font-size: 1rem;
  color: var(--text);
  font-weight: 600;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .about-grid,
  .product-hero-content,
  .about-page-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-visual {
    order: -1;
    height: 300px;
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
  }

  .nav.open {
    display: flex;
  }

  .nav-dropdown-menu {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    opacity: 1;
    visibility: visible;
    padding-left: 1rem;
  }

  .mobile-toggle {
    display: flex;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .features-list {
    grid-template-columns: 1fr;
  }

  .apps-grid {
    grid-template-columns: 1fr 1fr;
  }

  .products-grid,
  .products-page-grid {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .section {
    padding: 4rem 0;
  }

  .container {
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  .apps-grid {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
}