/* ===== CSS Variables ===== */
:root {
  /* Colors */
  --primary: #1a56db;
  --primary-dark: #1e40af;
  --primary-light: #3b82f6;
  --accent: #0ea5e9;
  --accent-green: #10b981;
  
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-gray: #f1f5f9;
  --bg-dark: #0f172a;
  
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;
  
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Spacing */
  --section-padding: 80px 0;
  --container-width: 1200px;
  --container-padding: 0 24px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

/* ===== Container ===== */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  height: 48px;
  width: auto;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.company-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.company-en {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.3;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 0;
  position: relative;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition-normal);
}

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

.nav a:hover::after {
  width: 100%;
}

/* ===== Hero Section ===== */
.hero {
  padding: 140px 0 100px;
  background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  max-width: 560px;
}

.product-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary);
  color: var(--text-white);
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 42px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-description {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.tag {
  padding: 8px 16px;
  background: var(--bg-gray);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.hero-cta {
  display: flex;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
}

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

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

.btn-secondary {
  background: var(--bg-white);
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: var(--text-white);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: var(--text-white);
}

.btn-large {
  padding: 16px 40px;
  font-size: 16px;
}

.hero-image {
  position: relative;
}

.main-product-image {
  position: relative;
  background: var(--bg-white);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--shadow-xl);
}

.main-product-image img {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  transition: transform var(--transition-slow);
}

.main-product-image:hover img {
  transform: scale(1.02);
}

.image-label {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 20px;
  background: rgba(26, 86, 219, 0.9);
  color: var(--text-white);
  font-size: 12px;
  font-weight: 500;
  border-radius: 20px;
}

/* ===== Section Header ===== */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-muted);
}

/* ===== Gallery Section ===== */
.gallery-section {
  padding: var(--section-padding);
  background: var(--bg-white);
}

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

.gallery-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-gray);
  aspect-ratio: 1;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: var(--text-white);
  font-size: 13px;
  font-weight: 500;
  text-align: center;
}

/* ===== Features Section ===== */
.features-section {
  padding: var(--section-padding);
  background: var(--bg-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--bg-white);
  padding: 32px;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  border-radius: 12px;
  margin-bottom: 24px;
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  color: var(--text-white);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== Functions Section ===== */
.functions-section {
  padding: var(--section-padding);
  background: var(--bg-white);
}

.function-showcase {
  background: var(--bg-light);
  border-radius: 24px;
  padding: 60px;
}

.function-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}

.function-left {
  position: sticky;
  top: 100px;
}

.function-image-wrapper {
  background: var(--bg-white);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 20px;
}

.function-image-wrapper img {
  width: 100%;
}

.function-caption {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.caption-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.caption-desc {
  font-size: 14px;
  color: var(--text-muted);
}

.function-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.function-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--bg-white);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.function-item:hover {
  box-shadow: var(--shadow-md);
}

.function-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--text-white);
  font-size: 18px;
  font-weight: 700;
  border-radius: 10px;
}

.function-content h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.function-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== Specs Section ===== */
.specs-section {
  padding: var(--section-padding);
  background: var(--bg-light);
}

.specs-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: start;
}

.specs-main {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.specs-table-wrapper {
  background: var(--bg-white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
}

.specs-table tr {
  border-bottom: 1px solid var(--border-light);
}

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

.spec-label {
  padding: 18px 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-gray);
  width: 35%;
}

.spec-value {
  padding: 18px 24px;
  font-size: 14px;
  color: var(--text-primary);
}

.specs-features {
  background: var(--bg-white);
  padding: 32px;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
}

.specs-features h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.optional-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.optional-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

.check-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-green);
  color: var(--text-white);
  font-size: 12px;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
}

.specs-image {
  position: relative;
}

.specs-image img {
  width: 100%;
  border-radius: 16px;
  box-shadow: var(--shadow-xl);
}

.image-caption {
  display: block;
  text-align: center;
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Applications Section ===== */
.applications-section {
  padding: var(--section-padding);
  background: var(--bg-white);
}

.applications-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}

.application-card {
  text-align: center;
  padding: 40px 32px;
  background: var(--bg-light);
  border-radius: 16px;
  transition: all var(--transition-normal);
}

.application-card:hover {
  background: var(--bg-white);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.application-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  border-radius: 50%;
  margin: 0 auto 24px;
}

.application-icon svg {
  width: 36px;
  height: 36px;
  color: var(--text-white);
}

.application-card h4 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.application-card ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.application-card li {
  font-size: 14px;
  color: var(--text-secondary);
}

.applications-note {
  text-align: center;
  padding: 24px;
  background: var(--bg-light);
  border-radius: 12px;
  border-left: 4px solid var(--primary);
}

.applications-note p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ===== Details Section ===== */
.details-section {
  padding: var(--section-padding);
  background: var(--bg-light);
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, 280px);
  gap: 20px;
}

.detail-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-gray);
  cursor: pointer;
}

.detail-card.large {
  grid-column: span 2;
}

.detail-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.detail-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: var(--text-white);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.detail-card:hover .detail-overlay {
  opacity: 1;
}

.detail-overlay h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.detail-overlay p {
  font-size: 13px;
  opacity: 0.8;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  text-align: center;
}

.cta-content h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 40px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.btn.btn-white {
  background: var(--bg-white);
  color: var(--primary);
}

.btn.btn-white:hover {
  background: var(--bg-light);
}

.btn.btn-outline-white {
  background: transparent;
  color: var(--text-white);
  border: 2px solid var(--text-white);
}

.btn.btn-outline-white:hover {
  background: var(--text-white);
  color: var(--primary);
}

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

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 28px;
  background: var(--bg-light);
  border-radius: 16px;
  transition: all var(--transition-normal);
}

.contact-card:hover {
  background: var(--bg-white);
  box-shadow: var(--shadow-lg);
}

.contact-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  border-radius: 12px;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 24px;
  height: 24px;
  color: var(--text-white);
}

.contact-details h4 {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.contact-value {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

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

.contact-value.address {
  font-size: 15px;
  font-weight: 400;
  line-height: 1.6;
}

.contact-company {
  text-align: center;
  padding: 48px 40px;
  background: var(--bg-light);
  border-radius: 24px;
}

.company-logo {
  margin-bottom: 24px;
}

.company-logo img {
  height: 80px;
  width: auto;
  margin: 0 auto;
}

.contact-company h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.contact-company p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-dark);
  padding: 60px 0 0;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 2fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand img {
  height: 40px;
  width: auto;
}

.footer-brand span {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-white);
}

.footer-info p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: right;
}

.footer-contact span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== Breadcrumb ===== */
.breadcrumb-bar {
  background: #eef2f7;
  border-top: 1px solid rgba(26,86,219,0.1);
  border-bottom: 2px solid var(--primary);
  box-shadow: 0 3px 12px rgba(0,40,100,0.08);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  font-size: 14px;
}

.breadcrumb-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--primary);
  font-weight: 600;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.breadcrumb-link:hover {
  color: var(--primary-dark, #1e40af);
  text-decoration: underline;
}

.breadcrumb-link svg {
  flex-shrink: 0;
}

.breadcrumb-sep {
  color: var(--primary-light);
  font-size: 14px;
  font-weight: 600;
  user-select: none;
}

.breadcrumb-current {
  color: #475569;
  font-weight: 500;
}

/* Adjust hero padding for breadcrumb */
.hero {
  padding: 200px 0 100px;
}

/* ===== Quick Consultation Form (in Contact Section) ===== */
.contact-left {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-form-wrapper {
  position: sticky;
  top: 130px;
}

.consult-form-card {
  background: linear-gradient(180deg, #1a3a6e 0%, #0f2557 100%);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(15, 37, 87, 0.35);
  padding: 28px 24px 24px;
}

.consult-form-title {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 24px;
  text-align: left;
  letter-spacing: 0.5px;
}

.consult-form {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 8px;
  letter-spacing: 0.3px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  font-size: 14px;
  font-family: inherit;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.35);
  font-size: 13px;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(59, 154, 255, 0.6);
  box-shadow: 0 0 0 3px rgba(59, 154, 255, 0.15);
  background: rgba(255, 255, 255, 0.12);
}

.form-group input.input-error,
.form-group textarea.input-error {
  border-color: #f87171;
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.15);
}

.form-error {
  display: block;
  font-size: 12px;
  color: #f87171;
  margin-top: 4px;
  min-height: 16px;
}

.consult-submit-btn {
  width: 100%;
  padding: 12px 20px;
  margin-top: 6px;
  background: linear-gradient(135deg, #3b9aff 0%, #2563eb 100%);
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: 0.5px;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}

.consult-submit-btn:hover {
  background: linear-gradient(135deg, #5dadff 0%, #3b82f6 100%);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
  transform: translateY(-1px);
}

.consult-submit-btn:active {
  transform: translateY(0);
}

.consult-submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none;
}

.consult-success {
  padding: 30px 24px;
  text-align: center;
  color: #ffffff;
}

.consult-success svg {
  color: #4ade80;
  margin-bottom: 12px;
}

.consult-success h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #ffffff;
}

.consult-success p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

.consult-reset-btn {
  margin-top: 16px;
  padding: 10px 24px;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.consult-reset-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.35);
}

.consult-success h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.consult-success p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.consult-reset {
  padding: 10px 24px;
  font-size: 14px;
}

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--text-white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-lg);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-content {
    max-width: 100%;
    text-align: center;
  }
  
  .hero-tags {
    justify-content: center;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .function-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .function-left {
    position: static;
  }
  
  .specs-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .details-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .detail-card.large {
    grid-column: span 2;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 24px;
  }
  
  .footer-contact {
    text-align: center;
  }
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    height: auto;
    padding: 16px 0;
    gap: 16px;
  }
  
  .nav {
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .hero {
    padding: 180px 0 60px;
  }
  
  .hero-title {
    font-size: 28px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .applications-grid {
    grid-template-columns: 1fr;
  }
  
  .details-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  
  .detail-card.large {
    grid-column: span 1;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .function-showcase {
    padding: 32px 20px;
  }
  
  .function-item {
    flex-direction: column;
    text-align: center;
  }
  
  .function-number {
    margin: 0 auto;
  }
  
  .consult-form-card {
    position: static;
  }
  
  .contact-form-wrapper {
    position: static;
  }
  
  .breadcrumb-bar {
    background: #eef2f7;
  }
  
  .breadcrumb {
    font-size: 12px;
  }
}