/* ============================================
   Design Token System - Tech Frontier
   ============================================ */
:root {
  /* Primary Colors - Deep Blue */
  --primary-50: #eff6ff; --primary-100: #dbeafe; --primary-200: #bfdbfe;
  --primary-300: #93c5fd; --primary-400: #60a5fa; --primary-500: #2563eb;
  --primary-600: #1d4ed8; --primary-700: #1e40af; --primary-800: #1e3a8a; --primary-900: #172554;

  /* Product Colors */
  --product-5g: #3b82f6; --product-5g-end: #06b6d4;
  --product-cc: #8b5cf6; --product-cc-end: #3b82f6;
  --product-ai: #10b981; --product-ai-end: #06b6d4;
  --product-lc: #f59e0b; --product-lc-end: #ef4444;

  /* Easing */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Spacing */
  --section-py: 100px;
  --container-max: 1200px;
  --radius-sm: 8px; --radius-md: 16px; --radius-lg: 24px; --radius-xl: 32px;

  /* Typography */
  --font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --fs-xs: 0.75rem; --fs-sm: 0.875rem; --fs-base: 1rem;
  --fs-lg: 1.125rem; --fs-xl: 1.25rem; --fs-2xl: 1.5rem;
  --fs-3xl: 2rem; --fs-4xl: 2.5rem; --fs-5xl: 3.5rem; --fs-6xl: 4.5rem;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 40px rgba(37,99,235,0.15);
}

/* Light Theme */
[data-theme="light"] {
  --bg-primary: #ffffff; --bg-secondary: #f8fafc; --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a; --text-secondary: #475569; --text-tertiary: #94a3b8;
  --border-color: #e2e8f0;
  --glass-bg: rgba(255,255,255,0.7); --glass-border: rgba(255,255,255,0.3);
  --nav-bg: rgba(255,255,255,0.8);
  --gradient-mesh: radial-gradient(ellipse at 20% 50%, rgba(59,130,246,0.08) 0%, transparent 50%),
                   radial-gradient(ellipse at 80% 20%, rgba(6,182,212,0.06) 0%, transparent 50%),
                   radial-gradient(ellipse at 40% 80%, rgba(139,92,246,0.05) 0%, transparent 50%);
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #0a0a0f; --bg-secondary: #12121a; --bg-tertiary: #1a1a28;
  --text-primary: #f1f5f9; --text-secondary: #94a3b8; --text-tertiary: #64748b;
  --border-color: #2a2a3a;
  --glass-bg: rgba(15,15,25,0.7); --glass-border: rgba(255,255,255,0.08);
  --nav-bg: rgba(10,10,15,0.85);
  --gradient-mesh: radial-gradient(ellipse at 20% 50%, rgba(59,130,246,0.12) 0%, transparent 50%),
                   radial-gradient(ellipse at 80% 20%, rgba(6,182,212,0.08) 0%, transparent 50%),
                   radial-gradient(ellipse at 40% 80%, rgba(139,92,246,0.06) 0%, transparent 50%);
}

/* ============================================
   Reset & Base
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-family); background: var(--bg-primary);
  color: var(--text-primary); line-height: 1.7; overflow-x: hidden;
  transition: background 0.4s, color 0.4s;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }

/* ============================================
   Utility Classes
   ============================================ */
.glass {
  background: var(--glass-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
}
.emoji-glass {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1em; height: 1em; padding: 0.15em; border-radius: 50%;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(12px) saturate(180%); -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.25);
  box-shadow: 0 4px 16px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.4), inset 0 -1px 0 rgba(255,255,255,0.1);
  line-height: 1; font-style: normal;
  transition: transform 0.3s, box-shadow 0.3s;
}
.emoji-glass:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(0,0,0,0.12), inset 0 1px 0 rgba(255,255,255,0.5), inset 0 -1px 0 rgba(255,255,255,0.15);
}
[data-theme="dark"] .emoji-glass {
  background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.12);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2), inset 0 1px 0 rgba(255,255,255,0.15), inset 0 -1px 0 rgba(255,255,255,0.05);
}
.card-3d { transition: transform 0.15s ease-out, box-shadow 0.3s ease; transform-style: preserve-3d; }
.card-3d:hover { box-shadow: var(--shadow-glow); }

.section-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 50px; font-size: var(--fs-sm);
  font-weight: 500; color: var(--primary-500); border: 1px solid rgba(37,99,235,0.2);
  background: rgba(37,99,235,0.05);
}
[data-theme="dark"] .section-badge { color: var(--primary-400); border-color: rgba(59,130,246,0.3); background: rgba(59,130,246,0.1); }

.section-badge::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary-500); animation: pulse-dot 2s ease infinite;
}
@keyframes pulse-dot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.5); } }

.section-title { font-size: var(--fs-4xl); font-weight: 700; line-height: 1.2; margin-bottom: 16px; }
.section-desc { font-size: var(--fs-lg); color: var(--text-secondary); max-width: 600px; }
.gradient-text {
  background: linear-gradient(135deg, var(--primary-500), var(--product-cc), var(--product-5g-end));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; background-size: 200% 200%;
  animation: gradient-flow 4s ease infinite;
}
@keyframes gradient-flow { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }

.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px;
  border-radius: var(--radius-md); font-size: var(--fs-base); font-weight: 600;
  cursor: pointer; border: none; transition: all 0.3s var(--ease-out-expo);
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: #fff; position: relative; overflow: hidden;
}
.btn-primary::after {
  content: ''; position: absolute; inset: -2px; border-radius: inherit;
  background: linear-gradient(135deg, var(--primary-400), var(--product-5g-end));
  opacity: 0; z-index: -1; transition: opacity 0.3s; filter: blur(12px);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(37,99,235,0.4); }
.btn-primary:hover::after { opacity: 1; }

.btn-ghost {
  background: transparent; color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.btn-ghost:hover { background: var(--bg-secondary); border-color: var(--primary-300); }

/* Reveal Animation */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo); }
.reveal.active { 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; }

/* ============================================
   Scroll Progress Bar
   ============================================ */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; z-index: 10001;
  background: linear-gradient(90deg, var(--primary-500), var(--product-5g-end), var(--product-cc));
  width: 0; transition: width 0.1s linear;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10000;
  padding: 16px 0; transition: all 0.3s ease;
}
.navbar.scrolled {
  padding: 10px 0;
  background: var(--nav-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}
.navbar.navbar-hero:not(.scrolled) {
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.navbar.navbar-hero:not(.scrolled) .nav-logo,
.navbar.navbar-hero:not(.scrolled) .nav-links a,
.navbar.navbar-hero:not(.scrolled) .nav-dropdown-trigger {
  color: rgba(255, 255, 255, 0.9);
}
.navbar.navbar-hero:not(.scrolled) .nav-links a:hover,
.navbar.navbar-hero:not(.scrolled) .nav-links a.active,
.navbar.navbar-hero:not(.scrolled) .nav-dropdown-trigger:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.nav-logo {
  display: flex; align-items: center; gap: 12px; font-size: var(--fs-xl); font-weight: 700;
}
.nav-logo-icon {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary-500), var(--product-5g-end));
  display: flex; align-items: center; justify-content: center; color: #fff; font-size: 20px;
}
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a, .nav-dropdown-trigger {
  padding: 8px 16px; border-radius: var(--radius-sm); font-size: var(--fs-sm);
  font-weight: 500; color: var(--text-secondary); transition: all 0.2s; cursor: pointer;
  position: relative;
}
.nav-links a:hover, .nav-dropdown-trigger:hover, .nav-links a.active {
  color: var(--text-primary); background: var(--bg-tertiary);
}
.nav-dropdown { position: relative; }
.nav-dropdown-trigger { display: flex; align-items: center; gap: 4px; }
.nav-dropdown-trigger svg { width: 14px; height: 14px; transition: transform 0.3s; }
.nav-dropdown:hover .nav-dropdown-trigger svg { transform: rotate(180deg); }
.nav-dropdown-menu {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 200px; padding: 8px; border-radius: var(--radius-md);
  background: var(--glass-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border); box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transition: all 0.3s var(--ease-out-expo);
}
.nav-dropdown:hover .nav-dropdown-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-dropdown-menu a {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px;
  border-radius: var(--radius-sm); font-size: var(--fs-sm); color: var(--text-secondary);
}
.nav-dropdown-menu a:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.nav-dropdown-menu .dd-icon {
  width: 32px; height: 32px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0;
}

.nav-actions { display: flex; align-items: center; gap: 8px; }
.theme-toggle {
  width: 40px; height: 40px; border-radius: var(--radius-sm); border: 1px solid var(--border-color);
  background: var(--bg-secondary); cursor: pointer; display: flex; align-items: center;
  justify-content: center; font-size: 18px; transition: all 0.3s;
}
.theme-toggle:hover { border-color: var(--primary-300); background: var(--bg-tertiary); }

/* Mobile Menu */
.nav-hamburger { display: none; width: 40px; height: 40px; border: none; background: none; cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-hamburger span { width: 22px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: all 0.3s; }
.mobile-menu {
  display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg-primary); z-index: 9999; padding: 80px 24px 24px;
  flex-direction: column; gap: 8px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 16px; font-size: var(--fs-lg); font-weight: 500;
  border-radius: var(--radius-sm); color: var(--text-secondary);
}
.mobile-menu a:hover, .mobile-menu a.active { background: var(--bg-tertiary); color: var(--text-primary); }
.mobile-close { position: absolute; top: 20px; right: 20px; width: 40px; height: 40px; border: none; background: var(--bg-secondary); border-radius: var(--radius-sm); cursor: pointer; font-size: 20px; display: flex; align-items: center; justify-content: center; }
.mobile-submenu { padding-left: 24px; }
.mobile-submenu a { font-size: var(--fs-base); padding: 12px 16px; }

/* ============================================
   Page Sections - Common
   ============================================ */
.page-hero {
  position: relative; min-height: 400px; display: flex; align-items: center;
  padding: 120px 0 var(--section-py); overflow: hidden;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero-bg {
  position: absolute; inset: 0; z-index: 0;
}
.page-hero-content { max-width: 700px; }
.page-hero-content .section-badge { margin-bottom: 24px; }
.page-hero-content h1 { font-size: var(--fs-5xl); font-weight: 700; line-height: 1.15; margin-bottom: 20px; }
.page-hero-content p { font-size: var(--fs-lg); color: var(--text-secondary); line-height: 1.8; }

/* ============================================
   Home Page
   ============================================ */
.home-hero {
  min-height: 100vh; padding: 100px 0 60px; position: relative;
}
.home-hero > .container {
  display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 40px;
  position: relative; z-index: 2;
}
#particleCanvas { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.home-hero-content { position: relative; z-index: 2; }
.home-hero-badge { margin-bottom: 28px; }
.home-hero-title { font-size: var(--fs-6xl); font-weight: 700; line-height: 1.1; margin-bottom: 24px; }
.home-hero-title .line { display: block; }
.home-hero-desc { font-size: var(--fs-lg); color: var(--text-secondary); margin-bottom: 36px; max-width: 520px; line-height: 1.8; }
.home-hero-actions { display: flex; gap: 16px; margin-bottom: 60px; flex-wrap: wrap; }
.home-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat-card { padding: 20px; text-align: center; }
.stat-value { font-size: var(--fs-3xl); font-weight: 700; margin-bottom: 4px; }
.stat-label { font-size: var(--fs-xs); color: var(--text-tertiary); font-weight: 500; }

/* Hero Right - 3D Scene */
.home-hero-visual {
  position: relative; height: 500px; display: flex;
  align-items: center; justify-content: center;
}
.hero-orb {
  position: absolute; width: 280px; height: 280px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(59,130,246,0.3), rgba(6,182,212,0.15), transparent);
  filter: blur(40px); animation: orb-float 6s ease-in-out infinite;
}
@keyframes orb-float { 0%, 100% { transform: translate(0, 0) scale(1); } 50% { transform: translate(10px, -20px) scale(1.05); } }

.hero-ring {
  position: absolute; border: 1px solid rgba(59,130,246,0.2); border-radius: 50%;
}
.hero-ring-1 { width: 350px; height: 350px; animation: spin-slow 20s linear infinite; }
.hero-ring-2 { width: 420px; height: 420px; border-color: rgba(139,92,246,0.15); animation: spin-slow 25s linear infinite reverse; }
.hero-ring-3 { width: 500px; height: 500px; border-color: rgba(6,182,212,0.1); animation: spin-slow 30s linear infinite; }
@keyframes spin-slow { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.hero-ring::before {
  content: ''; position: absolute; width: 10px; height: 10px; border-radius: 50%;
  background: var(--primary-500); top: -5px; left: 50%; transform: translateX(-50%);
  box-shadow: 0 0 20px rgba(59,130,246,0.6);
}
.hero-ring-2::before { background: var(--product-cc); box-shadow: 0 0 20px rgba(139,92,246,0.6); }
.hero-ring-3::before { background: var(--product-5g-end); box-shadow: 0 0 20px rgba(6,182,212,0.6); }

.hero-float-cards { position: absolute; inset: 0; }
.hero-float-card {
  position: absolute; padding: 14px 20px; border-radius: var(--radius-md);
  display: flex; align-items: center; gap: 10px; font-size: var(--fs-sm); font-weight: 600;
}
.hero-float-card .fc-icon { font-size: 22px; }
.hfc-1 { top: 15%; right: 10%; animation: float-card 5s ease-in-out infinite; }
.hfc-2 { bottom: 25%; right: 5%; animation: float-card 6s ease-in-out 1s infinite; }
.hfc-3 { bottom: 10%; left: 15%; animation: float-card 7s ease-in-out 2s infinite; }
@keyframes float-card { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-15px); } }

/* Canvas Particles */
#particleCanvas {
  position: absolute; inset: 0; z-index: 0; pointer-events: none; opacity: 0.6;
}

/* Wave SVG transition */
.hero-wave {
  position: absolute; bottom: -2px; left: 0; right: 0; z-index: 1; line-height: 0;
}
.hero-wave svg { width: 100%; height: 80px; }
.hero-wave svg path { fill: var(--bg-primary); }

/* Core Services - Bento Grid */
.bento-section { padding: var(--section-py) 0; position: relative; }
.bento-section::before { content: ''; position: absolute; inset: 0; background: var(--gradient-mesh); pointer-events: none; }
.bento-section .container { position: relative; z-index: 1; }
.bento-header { text-align: center; margin-bottom: 60px; }
.bento-header .section-desc { margin: 0 auto; }
.bento-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px;
}
.bento-card {
  padding: 32px; border-radius: var(--radius-lg); background: var(--bg-secondary);
  border: 1px solid var(--border-color); transition: all 0.4s var(--ease-out-expo);
  cursor: default; position: relative; overflow: hidden;
}
.bento-card::before {
  content: ''; position: absolute; inset: 0; opacity: 0;
  background: linear-gradient(135deg, rgba(59,130,246,0.05), rgba(139,92,246,0.03));
  transition: opacity 0.4s;
}
.bento-card:hover::before { opacity: 1; }
.bento-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary-200); }
[data-theme="dark"] .bento-card:hover { border-color: rgba(59,130,246,0.2); }

.bento-card.span-3 { grid-column: span 3; }
.bento-card.span-2 { grid-column: span 2; }
.bento-card.span-6 { grid-column: span 6; }
.bento-card.row-2 { grid-row: span 2; }
.bento-card.span-4 { grid-column: span 4; }

.bento-icon {
  width: 56px; height: 56px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(6,182,212,0.1));
  backdrop-filter: blur(12px) saturate(180%); -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.3);
  transition: transform 0.3s, box-shadow 0.3s;
}
.bento-icon:hover { transform: scale(1.08); box-shadow: 0 6px 24px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.4); }
.bento-card h3 { font-size: var(--fs-xl); font-weight: 600; margin-bottom: 12px; }
.bento-card p { color: var(--text-secondary); font-size: var(--fs-sm); line-height: 1.7; }
.bento-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.bento-tag {
  padding: 4px 12px; border-radius: 50px; font-size: var(--fs-xs);
  background: var(--bg-tertiary); color: var(--text-secondary); font-weight: 500;
}

/* Products Grid */
.products-section { padding: var(--section-py) 0; }
.products-header { margin-bottom: 60px; }
.products-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.product-card {
  padding: 36px; border-radius: var(--radius-lg); background: var(--bg-secondary);
  border: 1px solid var(--border-color); display: grid; grid-template-columns: auto 1fr;
  gap: 24px; transition: all 0.4s var(--ease-out-expo); cursor: pointer;
  position: relative; overflow: hidden;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.product-icon-wrap { position: relative; }
.product-icon {
  width: 120px; height: 120px; border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center; font-size: 48px;
  position: relative; overflow: hidden;
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.25);
  box-shadow:
    0 8px 32px rgba(0,0,0,0.12),
    inset 0 1px 0 rgba(255,255,255,0.35),
    inset 0 -1px 0 rgba(255,255,255,0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}
.product-icon::before {
  content: '';
  position: absolute; top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.25) 0%, transparent 60%);
  pointer-events: none;
}
.product-icon:hover {
  transform: scale(1.05);
  box-shadow:
    0 12px 40px rgba(0,0,0,0.18),
    inset 0 1px 0 rgba(255,255,255,0.4),
    inset 0 -1px 0 rgba(255,255,255,0.15);
}
.product-icon-glow {
  position: absolute; inset: 0; border-radius: inherit; filter: blur(40px);
  opacity: 0.4; z-index: -1;
}
.product-card-body { display: flex; flex-direction: column; justify-content: center; }
.product-label {
  display: inline-block; padding: 4px 12px; border-radius: 50px;
  font-size: var(--fs-xs); font-weight: 600; margin-bottom: 12px; width: fit-content;
}
.product-card h3 { font-size: var(--fs-2xl); font-weight: 700; margin-bottom: 8px; }
.product-card .desc { color: var(--text-secondary); font-size: var(--fs-sm); margin-bottom: 16px; line-height: 1.7; }
.product-link {
  display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-sm);
  font-weight: 600; transition: gap 0.3s;
}
.product-link:hover { gap: 12px; }

/* About Preview */
.about-preview { padding: var(--section-py) 0; position: relative; overflow: hidden; }
.about-preview-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about-preview-text .section-badge { margin-bottom: 20px; }
.about-preview-text h2 { font-size: var(--fs-4xl); font-weight: 700; margin-bottom: 20px; line-height: 1.2; }
.about-preview-text p { color: var(--text-secondary); margin-bottom: 24px; line-height: 1.8; }
.about-highlights { display: flex; flex-direction: column; gap: 12px; }
.about-highlight {
  display: flex; align-items: center; gap: 12px; padding: 12px 18px;
  border-radius: var(--radius-md); background: var(--bg-secondary); border: 1px solid var(--border-color);
}
.about-highlight-icon {
  font-size: 20px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(12px) saturate(180%); -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.3);
  transition: transform 0.3s;
}
.about-highlight-icon:hover { transform: scale(1.1); }
.about-highlight span { font-size: var(--fs-sm); font-weight: 500; }

.about-preview-visual { position: relative; height: 400px; display: flex; align-items: center; justify-content: center; }
.about-visual-orb {
  width: 300px; height: 300px; border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, rgba(59,130,246,0.2), rgba(139,92,246,0.1), transparent);
  filter: blur(30px); position: absolute;
}
.about-float-tag {
  position: absolute; padding: 10px 18px; border-radius: var(--radius-md);
  font-size: var(--fs-sm); font-weight: 600;
}
.aft-1 { top: 10%; right: 10%; animation: float-card 5s ease-in-out infinite; }
.aft-2 { bottom: 15%; left: 5%; animation: float-card 6s ease-in-out 1.5s infinite; }

/* Tech Marquee */
.marquee-section { padding: 60px 0; overflow: hidden; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.marquee-track {
  display: flex; gap: 24px; width: max-content;
  animation: marquee 30s linear infinite;
}
.marquee-track:hover { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.marquee-item {
  padding: 12px 28px; border-radius: 50px; font-size: var(--fs-sm); font-weight: 500;
  white-space: nowrap; border: 1px solid var(--border-color); color: var(--text-secondary);
  background: var(--bg-secondary); transition: all 0.3s;
}
.marquee-item:hover { border-color: var(--primary-300); color: var(--primary-500); background: rgba(59,130,246,0.05); }

/* ============================================
   About Page
   ============================================ */
.about-page .page-hero {
  min-height: 480px;
}
.circuit-pattern {
  position: absolute; inset: 0; opacity: 0.08;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0v30M0 30h30M30 30v30M30 30h30' stroke='%233b82f6' stroke-width='0.5' fill='none'/%3E%3Ccircle cx='30' cy='30' r='3' fill='%233b82f6'/%3E%3C/svg%3E");
}

.about-intro { padding: var(--section-py) 0; }
.about-intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-intro-visual {
  height: 360px; border-radius: var(--radius-lg); position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--primary-100), var(--bg-tertiary));
  display: flex; align-items: center; justify-content: center;
}
[data-theme="dark"] .about-intro-visual { background: linear-gradient(135deg, var(--bg-tertiary), rgba(59,130,246,0.1)); }
.about-intro-visual .visual-icon { font-size: 80px; opacity: 0.6; }
.about-intro-text p { color: var(--text-secondary); margin-bottom: 20px; line-height: 1.8; }
.about-tech-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.about-tech-tag {
  padding: 6px 16px; border-radius: 50px; font-size: var(--fs-sm); font-weight: 500;
  border: 1px solid var(--border-color); color: var(--text-secondary);
  transition: all 0.3s;
}
.about-tech-tag:hover {
  border-color: transparent; color: #fff;
  background: linear-gradient(135deg, var(--primary-500), var(--product-cc));
}

/* Core Tech */
.tech-section { padding: var(--section-py) 0; position: relative; }
.tech-section::before { content: ''; position: absolute; inset: 0; background: var(--gradient-mesh); pointer-events: none; }
.tech-section .container { position: relative; z-index: 1; }
.tech-section-header { text-align: center; margin-bottom: 60px; }
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.tech-card { padding: 32px; text-align: center; }
.tech-card-icon {
  width: 72px; height: 72px; border-radius: var(--radius-lg); margin: 0 auto 20px;
  display: flex; align-items: center; justify-content: center; font-size: 32px;
  backdrop-filter: blur(12px) saturate(180%); -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.3);
  transition: transform 0.3s, box-shadow 0.3s;
}
.tech-card-icon:hover { transform: scale(1.08); box-shadow: 0 6px 24px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.4); }
.tech-card h3 { font-size: var(--fs-lg); font-weight: 600; margin-bottom: 12px; }
.tech-card p { color: var(--text-secondary); font-size: var(--fs-sm); margin-bottom: 20px; }
.tech-progress-bar {
  width: 100%; height: 6px; border-radius: 3px; background: var(--bg-tertiary);
  overflow: hidden;
}
.tech-progress-fill {
  height: 100%; border-radius: 3px; width: 0;
  background: linear-gradient(90deg, var(--primary-500), var(--product-5g-end));
  transition: width 1.5s var(--ease-out-expo);
}

/* Culture */
.culture-section { padding: var(--section-py) 0; }
.culture-header { text-align: center; margin-bottom: 60px; }
.culture-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.culture-card { padding: 40px 32px; text-align: center; }
.culture-icon {
  font-size: 40px; margin-bottom: 20px; display: inline-flex; align-items: center; justify-content: center;
  width: 80px; height: 80px; border-radius: 50%;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(16px) saturate(180%); -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.35), inset 0 -1px 0 rgba(255,255,255,0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}
.culture-icon:hover { transform: scale(1.1); box-shadow: 0 8px 32px rgba(0,0,0,0.12), inset 0 1px 0 rgba(255,255,255,0.5); }
.culture-card h3 { font-size: var(--fs-xl); font-weight: 600; margin-bottom: 12px; }
.culture-card p { color: var(--text-secondary); font-size: var(--fs-sm); line-height: 1.7; }

/* Vision */
.vision-section { padding: var(--section-py) 0; }
.vision-card {
  max-width: 800px; margin: 0 auto; padding: 60px; text-align: center;
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--primary-800), var(--primary-900));
  border: 1px solid rgba(59,130,246,0.2); border-radius: var(--radius-xl);
}
[data-theme="light"] .vision-card {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
}
.vision-card h2 { font-size: var(--fs-4xl); font-weight: 700; color: #fff; margin-bottom: 20px; }
.vision-card p { color: rgba(255,255,255,0.8); font-size: var(--fs-lg); line-height: 1.8; margin-bottom: 32px; }
.vision-values { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }
.vision-value {
  padding: 8px 20px; border-radius: 50px; font-size: var(--fs-sm); font-weight: 500;
  background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.9);
  border: 1px solid rgba(255,255,255,0.15);
}

/* ============================================
   Products Page
   ============================================ */
.products-bento { padding: var(--section-py) 0; position: relative; }
.products-bento::before { content: ''; position: absolute; inset: 0; background: var(--gradient-mesh); pointer-events: none; }
.products-bento .container { position: relative; z-index: 1; }
.products-bento-header { margin-bottom: 60px; }
.products-bento-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.pb-card {
  padding: 36px; border-radius: var(--radius-lg); background: var(--bg-secondary);
  border: 1px solid var(--border-color); transition: all 0.4s var(--ease-out-expo);
  cursor: pointer; position: relative; overflow: hidden;
  display: flex; flex-direction: column;
}
.pb-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pb-card.span-3 { grid-column: span 3; }
.pb-card.span-2 { grid-column: span 2; }

.pb-card-icon {
  width: 64px; height: 64px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center; font-size: 28px; margin-bottom: 20px;
}
.pb-card-label {
  display: inline-block; padding: 4px 12px; border-radius: 50px;
  font-size: var(--fs-xs); font-weight: 600; margin-bottom: 12px; width: fit-content;
}
.pb-card h3 { font-size: var(--fs-2xl); font-weight: 700; margin-bottom: 10px; }
.pb-card .desc { color: var(--text-secondary); font-size: var(--fs-sm); line-height: 1.7; margin-bottom: 16px; }
.pb-card-features { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.pb-card-feature {
  padding: 4px 12px; border-radius: 50px; font-size: var(--fs-xs); font-weight: 500;
  background: var(--bg-tertiary); color: var(--text-secondary);
}
.pb-card-cta { margin-top: auto; }
.pb-card-cta .btn { font-size: var(--fs-sm); padding: 10px 24px; }

.pb-card-lg-visual {
  position: absolute; right: 40px; bottom: 40px; width: 120px; height: 120px;
  border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center;
  font-size: 56px; opacity: 0.6;
}

/* ============================================
   Product Sub-pages (Generic)
   ============================================ */
.product-page-hero {
  position: relative; min-height: 420px; display: flex; align-items: center;
  padding: 120px 0 80px; overflow: hidden;
}
.product-page-hero-bg {
  position: absolute; inset: 0; z-index: 0;
}
.product-page-hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.pph-content { max-width: 560px; }
.pph-content .section-badge { margin-bottom: 20px; }
.pph-content h1 { font-size: var(--fs-5xl); font-weight: 700; line-height: 1.15; margin-bottom: 16px; }
.pph-content p { font-size: var(--fs-lg); color: var(--text-secondary); margin-bottom: 28px; line-height: 1.8; }
.pph-visual { display: flex; align-items: center; justify-content: center; height: 320px; position: relative; }

/* Phone mockup for 5G */
.phone-mockup {
  width: 200px; height: 400px; border-radius: 32px; border: 3px solid rgba(255,255,255,0.2);
  background: linear-gradient(180deg, #0f172a, #1e293b); overflow: hidden;
  position: relative; box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.phone-notch { width: 80px; height: 24px; background: #000; border-radius: 0 0 16px 16px; margin: 0 auto; }
.phone-screen { padding: 20px 16px; }
.phone-status { display: flex; justify-content: space-between; font-size: 10px; color: rgba(255,255,255,0.5); margin-bottom: 20px; }
.phone-video {
  width: 100%; height: 140px; border-radius: 12px;
  background: linear-gradient(135deg, #1e40af, #0e7490);
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.phone-video-icon {
  font-size: 32px; opacity: 0.9;
  display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(12px) saturate(180%); -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.3);
}
.phone-controls { display: flex; justify-content: center; gap: 16px; }
.phone-ctrl {
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.1); display: flex; align-items: center;
  justify-content: center; font-size: 18px; color: #fff;
  backdrop-filter: blur(12px) saturate(180%); -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 2px 12px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.25);
  transition: transform 0.3s, box-shadow 0.3s;
}
.phone-ctrl:hover { transform: scale(1.1); box-shadow: 0 4px 20px rgba(0,0,0,0.15), inset 0 1px 0 rgba(255,255,255,0.35); }
.phone-ctrl-end { background: #ef4444; }

/* Network nodes for call center */
.network-nodes { position: relative; width: 280px; height: 280px; }
.node {
  position: absolute; width: 12px; height: 12px; border-radius: 50%;
  animation: node-pulse 3s ease infinite;
}
@keyframes node-pulse { 0%, 100% { transform: scale(1); opacity: 0.8; } 50% { transform: scale(1.3); opacity: 1; } }
.node-line { position: absolute; height: 1px; background: rgba(139,92,246,0.3); transform-origin: left center; }

/* Neural network for AI */
.neural-nodes { position: relative; width: 280px; height: 280px; }

/* Blocks for low-code */
.code-blocks { position: relative; width: 280px; height: 280px; }
.code-block {
  position: absolute; border-radius: var(--radius-sm); animation: float-card 5s ease infinite;
}

/* Product Features */
.product-features { padding: var(--section-py) 0; }
.product-features-header { text-align: center; margin-bottom: 60px; }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card { padding: 32px; text-align: center; }
.feature-card-icon {
  width: 64px; height: 64px; border-radius: var(--radius-md); margin: 0 auto 20px;
  display: flex; align-items: center; justify-content: center; font-size: 28px;
  backdrop-filter: blur(12px) saturate(180%); -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.3);
  transition: transform 0.3s, box-shadow 0.3s;
}
.feature-card-icon:hover { transform: scale(1.08); box-shadow: 0 6px 24px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.4); }
.feature-card h3 { font-size: var(--fs-lg); font-weight: 600; margin-bottom: 10px; }
.feature-card p { color: var(--text-secondary); font-size: var(--fs-sm); line-height: 1.7; }

/* Product Scenarios */
.product-scenarios { padding: var(--section-py) 0; position: relative; }
.product-scenarios::before { content: ''; position: absolute; inset: 0; background: var(--gradient-mesh); pointer-events: none; }
.product-scenarios .container { position: relative; z-index: 1; }
.product-scenarios-header { text-align: center; margin-bottom: 60px; }
.scenarios-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.scenario-card { padding: 28px; border-radius: var(--radius-lg); background: var(--bg-secondary); border: 1px solid var(--border-color); text-align: center; transition: all 0.3s; }
.scenario-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.scenario-icon {
  font-size: 28px; margin-bottom: 16px; display: inline-flex; align-items: center; justify-content: center;
  width: 64px; height: 64px; border-radius: 50%;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(16px) saturate(180%); -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.35), inset 0 -1px 0 rgba(255,255,255,0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}
.scenario-icon:hover { transform: scale(1.1); box-shadow: 0 8px 32px rgba(0,0,0,0.12), inset 0 1px 0 rgba(255,255,255,0.5); }
.scenario-card h3 { font-size: var(--fs-base); font-weight: 600; margin-bottom: 8px; }
.scenario-card p { color: var(--text-secondary); font-size: var(--fs-sm); }

/* Product Metrics */
.product-metrics { padding: var(--section-py) 0; }
.product-metrics-header { text-align: center; margin-bottom: 60px; }
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.metric-card { padding: 32px; text-align: center; }
.metric-value { font-size: var(--fs-4xl); font-weight: 700; margin-bottom: 8px; }
.metric-label { font-size: var(--fs-sm); color: var(--text-secondary); }

/* ============================================
   Contact Page
   ============================================ */
.contact-section { padding: var(--section-py) 0; position: relative; }
.contact-section::before { content: ''; position: absolute; inset: 0; background: var(--gradient-mesh); pointer-events: none; }
.contact-section .container { position: relative; z-index: 1; }
.contact-grid {
  display: grid; grid-template-columns: 1fr; max-width: 720px; margin: 0 auto;
  gap: 16px;
}
.contact-card {
  padding: 28px 32px; border-radius: var(--radius-lg); background: var(--bg-secondary);
  border: 1px solid var(--border-color); display: flex; align-items: center; gap: 20px;
  transition: all 0.3s; position: relative; overflow: hidden;
}
.contact-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: linear-gradient(180deg, var(--primary-500), var(--product-5g-end));
  transform: scaleY(0); transition: transform 0.3s var(--ease-out-expo); transform-origin: top;
}
.contact-card:hover::before { transform: scaleY(1); }
.contact-card:hover { box-shadow: var(--shadow-md); }
.contact-card-icon {
  width: 56px; height: 56px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center; font-size: 24px; flex-shrink: 0;
  background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(6,182,212,0.1));
  backdrop-filter: blur(12px) saturate(180%); -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.3);
  transition: transform 0.3s, box-shadow 0.3s;
}
.contact-card-icon:hover { transform: scale(1.08); box-shadow: 0 6px 24px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.4); }
.contact-card h3 { font-size: var(--fs-base); font-weight: 600; margin-bottom: 4px; }
.contact-card p { color: var(--text-secondary); font-size: var(--fs-sm); }

/* Map area */
.contact-map {
  margin-top: 48px; max-width: 720px; margin-left: auto; margin-right: auto;
  height: 300px; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--bg-secondary); border: 1px solid var(--border-color);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-tertiary); font-size: var(--fs-sm);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: 80px 0 32px; border-top: 1px solid var(--border-color);
  position: relative; overflow: hidden;
}
.footer::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 400px;
  background: radial-gradient(ellipse at 30% 0%, rgba(59,130,246,0.04) 0%, transparent 70%),
              radial-gradient(ellipse at 70% 0%, rgba(139,92,246,0.03) 0%, transparent 70%);
  pointer-events: none;
}
.footer .container { position: relative; z-index: 1; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .nav-logo { margin-bottom: 16px; }
.footer-brand p { color: var(--text-secondary); font-size: var(--fs-sm); max-width: 300px; line-height: 1.7; }
.footer-col h4 { font-size: var(--fs-sm); font-weight: 600; margin-bottom: 20px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-tertiary); }
.footer-col a { display: block; padding: 6px 0; color: var(--text-secondary); font-size: var(--fs-sm); transition: color 0.2s; }
.footer-col a:hover { color: var(--primary-500); }
.footer-bottom {
  padding-top: 24px; border-top: 1px solid var(--border-color);
  display: flex; justify-content: space-between; align-items: center;
  font-size: var(--fs-xs); color: var(--text-tertiary);
}
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: var(--radius-sm); border: 1px solid rgba(255,255,255,0.15);
  display: flex; align-items: center; justify-content: center; font-size: 14px;
  color: var(--text-secondary); transition: all 0.3s;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(12px) saturate(180%); -webkit-backdrop-filter: blur(12px) saturate(180%);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.2);
}
.footer-social a:hover { border-color: var(--primary-300); color: var(--primary-500); background: rgba(59,130,246,0.1); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.3); }

/* Back to Top */
.back-to-top {
  position: fixed; bottom: 32px; right: 32px; width: 48px; height: 48px;
  border-radius: var(--radius-md); border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: #fff; font-size: 20px; display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all 0.3s var(--ease-out-expo); z-index: 999; box-shadow: var(--shadow-md);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  :root { --section-py: 72px; }
  .home-hero > .container { grid-template-columns: 1fr; text-align: center; }
  .home-hero-visual { display: none; }
  .home-hero-content { margin: 0 auto; }
  .home-hero-actions { justify-content: center; }
  .home-hero-desc { margin: 0 auto 36px; }
  .home-stats { grid-template-columns: repeat(2, 1fr); }
  .bento-grid { grid-template-columns: repeat(3, 1fr); }
  .bento-card.span-6, .bento-card.span-4, .bento-card.span-3 { grid-column: span 3; }
  .bento-card.span-2 { grid-column: span 2; }
  .products-grid { grid-template-columns: 1fr; }
  .about-preview-inner { grid-template-columns: 1fr; }
  .about-preview-visual { display: none; }
  .about-intro-grid { grid-template-columns: 1fr; }
  .about-intro-visual { display: none; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .culture-grid { grid-template-columns: 1fr; }
  .products-bento-grid { grid-template-columns: repeat(3, 1fr); }
  .pb-card.span-2 { grid-column: span 3; }
  .pb-card-lg-visual { display: none; }
  .features-grid, .scenarios-grid, .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .product-page-hero .container { grid-template-columns: 1fr; }
  .pph-visual { display: none; }
  .pph-content { max-width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .section-title { font-size: var(--fs-3xl); }
  .page-hero-content h1, .home-hero-title { font-size: var(--fs-4xl); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .home-hero-title { font-size: var(--fs-4xl); }
  .home-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-card { padding: 16px; }
  .stat-value { font-size: var(--fs-2xl); }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-card.span-6, .bento-card.span-4, .bento-card.span-3, .bento-card.span-2 { grid-column: span 1; }
  .bento-card.row-2 { grid-row: auto; }
  .products-bento-grid { grid-template-columns: 1fr; }
  .pb-card.span-3, .pb-card.span-2 { grid-column: span 1; }
  .features-grid, .scenarios-grid, .metrics-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .page-hero-content h1, .home-hero-title { font-size: var(--fs-3xl); }
  .vision-card { padding: 40px 24px; }
  .pph-content h1 { font-size: var(--fs-4xl); }
}

@media (max-width: 480px) {
  .home-hero-title { font-size: var(--fs-3xl); }
  .home-stats { grid-template-columns: 1fr 1fr; }
  .section-title { font-size: var(--fs-2xl); }
  .home-hero-actions { flex-direction: column; align-items: center; }
  .contact-card { flex-direction: column; text-align: center; }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}