/* ==========================================================================
   TCXLED — Global Stylesheet
   Design: Bold & Industrial
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* --------------------------------------------------------------------------
   CSS Variables
   -------------------------------------------------------------------------- */
:root {
  --bg:         #07090E;
  --bg-2:       #0C0F17;
  --bg-card:    #10141E;
  --bg-hover:   #161C2A;
  --border:     #1C2333;
  --border-md:  #242D40;
  --text:       #F0F4FF;
  --text-2:     #8B9BB4;
  --text-3:     #4A5568;
  --accent:     #2563EB;
  --accent-h:   #3B82F6;
  --accent-glow:rgba(37,99,235,0.18);
  --cyan:       #06B6D4;
  --white:      #FFFFFF;
  --font:       'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-w:      1200px;
  --nav-h:      72px;
  --radius:     8px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --shadow:     0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg:  0 12px 48px rgba(0,0,0,0.6);
  --transition: 0.2s ease;
}

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

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

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

img { display: block; max-width: 100%; height: auto; }
a  { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: var(--font); border: none; background: none; }
input, textarea, select { font-family: var(--font); }

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
.display {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.h1 { font-size: clamp(2rem, 4vw, 3.25rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.025em; }
.h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
.h3 { font-size: clamp(1.1rem, 2vw, 1.375rem); font-weight: 600; line-height: 1.3; }
.h4 { font-size: 1rem; font-weight: 600; line-height: 1.4; }
.lead { font-size: clamp(1rem, 1.5vw, 1.2rem); line-height: 1.7; color: var(--text-2); }
.small { font-size: 0.875rem; }
.mono { font-variant-numeric: tabular-nums; }

/* --------------------------------------------------------------------------
   Layout Utilities
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section-sm { padding: 64px 0; }
.section-lg { padding: 128px 0; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.gap-32 { gap: 32px; }
.gap-48 { gap: 48px; }

.text-center { text-align: center; }
.text-right  { text-align: right; }

.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mt-64 { margin-top: 64px; }

.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--accent-h);
  transform: translateY(-1px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border-md);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-h);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-2);
  padding: 10px 0;
}
.btn-ghost:hover { color: var(--text); }

.btn-lg { padding: 16px 36px; font-size: 1rem; border-radius: 10px; }

.btn-whatsapp {
  background: #25D366;
  color: #fff;
}
.btn-whatsapp:hover {
  background: #20BA5A;
  transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(37,211,102,0.25);
}

.btn-wechat {
  background: #07C160;
  color: #fff;
}
.btn-wechat:hover {
  background: #06AD55;
  transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(7,193,96,0.25);
}

/* --------------------------------------------------------------------------
   Badges / Tags
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-blue {
  background: rgba(37,99,235,0.15);
  color: #60A5FA;
  border: 1px solid rgba(37,99,235,0.3);
}

.badge-outline {
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border-md);
}

/* --------------------------------------------------------------------------
   Dividers
   -------------------------------------------------------------------------- */
.divider {
  width: 100%;
  height: 1px;
  background: var(--border);
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 100;
  transition: background var(--transition), border-color var(--transition);
}

.nav.scrolled {
  background: rgba(7,9,14,0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 24px;
  max-width: 1320px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo img {
  height: 32px;
  width: auto;
}

.nav-logo-text {
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
}

.nav-logo-sub {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: -2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
  position: relative;
}

.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.nav-link.active { color: var(--white); }

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

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 8px;
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.15s ease;
  box-shadow: var(--shadow-lg);
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-2);
  transition: all var(--transition);
}
.nav-dropdown-item:hover { background: var(--bg-hover); color: var(--text); }

.nav-dropdown-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.nav-cta { margin-left: 12px; }

/* Mobile menu toggle */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.25s ease;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
}
.nav-mobile .nav-link {
  padding: 12px 0;
  font-size: 1rem;
  border-radius: 0;
  border-bottom: 1px solid var(--border);
}
.nav-mobile .nav-link:last-child { border-bottom: none; }
.nav-mobile.open { display: flex; }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.35);
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero-bg.loaded { transform: scale(1); }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(7,9,14,0.85) 0%,
    rgba(7,9,14,0.4) 50%,
    rgba(7,9,14,0.7) 100%
  );
}

.hero-overlay-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 240px;
  background: linear-gradient(to top, var(--bg), transparent);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: var(--nav-h);
  width: 100%;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-h);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--accent);
}

.hero-title {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.035em;
  max-width: 800px;
  margin-bottom: 24px;
}

.hero-title .accent { color: var(--accent-h); }

.hero-sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--text-2);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 64px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
}

.hero-stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.03em;
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.8125rem;
  color: var(--text-3);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-3);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* --------------------------------------------------------------------------
   Section Headers
   -------------------------------------------------------------------------- */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-h);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--accent);
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 1.0625rem;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 560px;
}

/* --------------------------------------------------------------------------
   Stats Bar
   -------------------------------------------------------------------------- */
.stats-bar {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat-item {
  text-align: center;
  padding: 16px 24px;
  border-right: 1px solid var(--border);
}
.stat-item:last-child { border-right: none; }

.stat-num {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 900;
  color: var(--white);
  letter-spacing: -0.04em;
  line-height: 1;
}

.stat-accent { color: var(--accent-h); }

.stat-label {
  font-size: 0.8125rem;
  color: var(--text-3);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   Product Cards
   -------------------------------------------------------------------------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.product-card {
  background: var(--bg-card);
  overflow: hidden;
  position: relative;
  transition: background var(--transition);
  display: flex;
  flex-direction: column;
}
.product-card:hover { background: var(--bg-hover); }

.product-card-image {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  position: relative;
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-card-image img { transform: scale(1.04); }

.product-card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-h);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.product-card-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.product-card-desc {
  font-size: 0.9375rem;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: 20px;
  flex: 1;
}

.product-card-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.spec-tag {
  padding: 4px 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-md);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-2);
}

.product-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-h);
  transition: gap var(--transition);
}
.product-card-link:hover { gap: 10px; }

/* --------------------------------------------------------------------------
   Feature Cards
   -------------------------------------------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.feature-card {
  background: var(--bg-card);
  padding: 36px 32px;
  transition: background var(--transition);
}
.feature-card:hover { background: var(--bg-hover); }

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-glow);
  border: 1px solid rgba(37,99,235,0.3);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.25rem;
}

.feature-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   Use Case / Industry Cards
   -------------------------------------------------------------------------- */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.industry-card {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}

.industry-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.5);
  transition: filter 0.4s ease, transform 0.4s ease;
}
.industry-card:hover .industry-card-bg {
  filter: brightness(0.65);
  transform: scale(1.04);
}

.industry-card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px 20px;
  background: linear-gradient(to top, rgba(7,9,14,0.95), transparent);
}

.industry-card-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.industry-card-sub {
  font-size: 0.8rem;
  color: var(--text-2);
  margin-top: 4px;
}

/* --------------------------------------------------------------------------
   CTA Section
   -------------------------------------------------------------------------- */
.cta-section {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 96px 0;
  text-align: center;
}

.cta-section .section-title { max-width: 640px; margin: 0 auto 16px; }
.cta-section .section-sub   { margin: 0 auto 40px; text-align: center; }

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.cta-note {
  margin-top: 20px;
  font-size: 0.8125rem;
  color: var(--text-3);
}

/* --------------------------------------------------------------------------
   Contact Page
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.contact-info-item:last-child { border-bottom: none; }

.contact-info-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-glow);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}

.contact-info-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.contact-info-value {
  font-size: 0.9375rem;
  color: var(--text);
  font-weight: 500;
}

/* Form */
.form-group { margin-bottom: 20px; }

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-md);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text);
  font-size: 0.9375rem;
  transition: border-color var(--transition);
  outline: none;
}
.form-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.form-input::placeholder { color: var(--text-3); }

.form-select {
  width: 100%;
  appearance: none;
  background: var(--bg-card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%234A5568' d='M6 8L0 0h12z'/%3E%3C/svg%3E") no-repeat right 16px center;
  border: 1px solid var(--border-md);
  border-radius: var(--radius);
  padding: 12px 40px 12px 16px;
  color: var(--text);
  font-size: 0.9375rem;
  transition: border-color var(--transition);
  outline: none;
  cursor: pointer;
}
.form-select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }

textarea.form-input { resize: vertical; min-height: 140px; }

/* --------------------------------------------------------------------------
   FAQ Accordion
   -------------------------------------------------------------------------- */
.faq-list { display: flex; flex-direction: column; gap: 2px; }

.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  transition: background var(--transition);
}
.faq-item.open { background: var(--bg-hover); }

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  cursor: pointer;
  gap: 16px;
  user-select: none;
}

.faq-question-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
  color: var(--text-2);
  transition: background var(--transition), transform var(--transition);
}
.faq-item.open .faq-icon { background: var(--accent); color: var(--white); transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 28px 24px;
  font-size: 0.9375rem;
  color: var(--text-2);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   About Page
   -------------------------------------------------------------------------- */
.about-hero {
  padding: 160px 0 96px;
  background: radial-gradient(ellipse at 60% 50%, rgba(37,99,235,0.08) 0%, transparent 70%);
}

.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 96px;
  align-items: center;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-top: 48px;
}

.about-stat-card {
  background: var(--bg-card);
  padding: 32px;
  text-align: center;
}

.about-stat-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: -0.04em;
}

.about-stat-label {
  font-size: 0.8125rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
  margin-top: 6px;
}

.about-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.about-image img { width: 100%; height: 100%; object-fit: cover; }

/* Timeline */
.timeline { position: relative; padding-left: 32px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border-md);
}

.timeline-item {
  position: relative;
  padding-bottom: 36px;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -36px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
}

.timeline-year {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-h);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.timeline-text {
  font-size: 0.9375rem;
  color: var(--text-2);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Product Detail Pages
   -------------------------------------------------------------------------- */
.product-hero {
  padding: 140px 0 80px;
  background: radial-gradient(ellipse at 70% 50%, rgba(37,99,235,0.06) 0%, transparent 60%);
}

.product-models {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.model-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}
.model-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px var(--accent-glow);
}

.model-card-image {
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--bg-2);
  display: flex;
  align-items: center;
  justify-content: center;
}
.model-card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 24px;
  transition: transform 0.4s ease;
}
.model-card:hover .model-card-image img { transform: scale(1.06); }

.model-card-body { padding: 20px; }
.model-card-name { font-size: 1.125rem; font-weight: 700; color: var(--white); margin-bottom: 6px; }
.model-card-sub  { font-size: 0.875rem; color: var(--text-2); margin-bottom: 16px; }

.model-specs { display: flex; flex-direction: column; gap: 8px; }
.model-spec {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.model-spec:last-child { border-bottom: none; }
.model-spec-key   { color: var(--text-3); font-weight: 500; }
.model-spec-value { color: var(--text); font-weight: 600; }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
}

.footer-tagline {
  font-size: 0.8125rem;
  color: var(--text-3);
  margin-top: 4px;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 24px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-2);
  margin-bottom: 8px;
}
.footer-contact-item a:hover { color: var(--text); }

.footer-heading {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-link {
  font-size: 0.9rem;
  color: var(--text-2);
  transition: color var(--transition);
}
.footer-link:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copyright {
  font-size: 0.8125rem;
  color: var(--text-3);
}

.footer-legal {
  display: flex;
  gap: 20px;
}

.footer-legal a {
  font-size: 0.8125rem;
  color: var(--text-3);
  transition: color var(--transition);
}
.footer-legal a:hover { color: var(--text-2); }

/* Social icons */
.social-links { display: flex; gap: 8px; margin-top: 16px; }
.social-link {
  width: 36px;
  height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-md);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  font-size: 0.875rem;
  transition: all var(--transition);
}
.social-link:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   Page Header (inner pages)
   -------------------------------------------------------------------------- */
.page-header {
  padding: 140px 0 72px;
  background: radial-gradient(ellipse at 30% 60%, rgba(37,99,235,0.07) 0%, transparent 60%);
  position: relative;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border);
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.stagger.visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0s; }
.stagger.visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.1s; }
.stagger.visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.2s; }
.stagger.visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.3s; }

/* --------------------------------------------------------------------------
   Misc Utilities
   -------------------------------------------------------------------------- */
.highlight { color: var(--accent-h); }
.text-muted { color: var(--text-2); }
.text-white { color: var(--white); }
.hidden { display: none; }

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .products-grid  { grid-template-columns: repeat(2, 1fr); }
  .features-grid  { grid-template-columns: repeat(2, 1fr); }
  .industries-grid{ grid-template-columns: repeat(2, 1fr); }
  .stats-grid     { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .footer-grid    { grid-template-columns: 1fr 1fr; }
  .product-models { grid-template-columns: repeat(2, 1fr); }
  .contact-grid   { grid-template-columns: 1fr; gap: 48px; }
  .about-story    { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section-lg { padding: 80px 0; }

  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }

  .products-grid  { grid-template-columns: 1fr; }
  .features-grid  { grid-template-columns: 1fr; }
  .industries-grid{ grid-template-columns: repeat(2, 1fr); }
  .stats-grid     { grid-template-columns: repeat(2, 1fr); }
  .footer-grid    { grid-template-columns: 1fr 1fr; gap: 32px; }
  .product-models { grid-template-columns: 1fr; }

  .hero-title { font-size: 2.4rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; }

  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .industries-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}