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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Roboto Condensed', sans-serif;
  background-color: #1A1A1A;
  color: #FFFFFF;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Oswald', sans-serif;
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #1A1A1A;
}

::-webkit-scrollbar-thumb {
  background: #555555;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #FF5722;
}

:root {
  --color-dark: #1A1A1A;
  --color-steel: #1E3A5F;
  --color-orange: #FF5722;
  --color-electric: #00BCD4;
  --color-gray: #333333;
  --color-light-gray: #444444;
  --color-border: #555555;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.text-gradient {
  background: linear-gradient(90deg, #FF5722, #00BCD4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  font-family: 'Oswald', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-orange {
  background-color: #FF5722;
  color: #FFFFFF;
}

.btn-orange:hover {
  background-color: #e64a19;
  box-shadow: 0 0 20px rgba(255, 87, 34, 0.5);
}

.btn-outline {
  background-color: transparent;
  color: #FFFFFF;
  border: 2px solid #555555;
}

.btn-outline:hover {
  border-color: #FF5722;
  color: #FF5722;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 36px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.section-title .divider {
  width: 60px;
  height: 3px;
  background-color: #FF5722;
  margin: 0 auto;
}

.card {
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  transition: all 0.3s ease;
}

.card:hover {
  border-color: #FF5722;
}

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

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

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 10px rgba(255, 87, 34, 0.3);
  }
  50% {
    box-shadow: 0 0 25px rgba(255, 87, 34, 0.6);
  }
}

.animate-fade-in {
  animation: fadeIn 0.6s ease-out;
}

.animate-slide-up {
  animation: slideUp 0.6s ease-out;
}

.animate-pulse-glow {
  animation: pulseGlow 2s ease-in-out infinite;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: transparent;
  transition: all 0.3s ease;
}

header.scrolled {
  background-color: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #555555;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 15px;
  text-decoration: none;
}

.logo .logo-icon {
  width: 48px;
  height: 48px;
  background-color: #FF5722;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo .logo-icon span {
  font-family: 'Oswald', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: #FFFFFF;
}

.logo-text h1 {
  font-family: 'Oswald', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 2px;
}

.logo-text p {
  font-size: 12px;
  color: #888888;
}

nav ul {
  display: flex;
  gap: 30px;
  list-style: none;
}

nav ul li a {
  font-family: 'Oswald', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: #CCCCCC;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-decoration: none;
  transition: color 0.3s ease;
}

nav ul li a:hover,
nav ul li a.active {
  color: #FF5722;
}

.header-contact {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-contact a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #888888;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s ease;
}

.header-contact a:hover {
  color: #FF5722;
}

.mobile-menu-btn {
  display: none;
  color: #CCCCCC;
  font-size: 24px;
  cursor: pointer;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #1A1A1A 0%, #1E3A5F 50%, #1A1A1A 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  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 5v50M5 30h50' stroke='rgba(0,188,212,0.1)' stroke-width='1' fill='none'/%3E%3C/svg%3E");
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  position: relative;
  z-index: 1;
  padding-top: 80px;
}

.hero-content {
  animation: fadeIn 0.6s ease-out;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background-color: rgba(255, 87, 34, 0.2);
  border: 1px solid rgba(255, 87, 34, 0.5);
  margin-bottom: 20px;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background-color: #FF5722;
  border-radius: 50%;
  animation: pulseGlow 2s ease-in-out infinite;
}

.hero-badge span {
  font-family: 'Oswald', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: #FF5722;
  letter-spacing: 1px;
}

.hero-content h1 {
  font-family: 'Oswald', sans-serif;
  font-size: 56px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-content h1 span {
  color: #FFFFFF;
}

.hero-content p {
  font-size: 18px;
  color: #888888;
  margin-bottom: 40px;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-image {
  animation: slideUp 0.6s ease-out;
  position: relative;
}

.hero-image .image-container {
  position: relative;
  aspect-ratio: 1;
}

.hero-image .image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 1px solid #555555;
}

.hero-image .image-container::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 87, 34, 0.3), rgba(0, 188, 212, 0.3));
  filter: blur(60px);
}

.hero-stats {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 140px;
  height: 140px;
  background-color: #FF5722;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  animation: pulseGlow 2s ease-in-out infinite;
}

.hero-stats span {
  font-family: 'Oswald', sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: #FFFFFF;
}

.hero-stats p {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
  text-align: center;
}

.advantages {
  padding: 80px 0;
  background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 50%, #252525 100%);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.advantage-card {
  padding: 40px 30px;
  text-align: center;
}

.advantage-icon {
  width: 64px;
  height: 64px;
  background-color: rgba(255, 87, 34, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 32px;
  color: #FF5722;
}

.advantage-card h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 15px;
  letter-spacing: 1px;
}

.advantage-card p {
  font-size: 14px;
  color: #888888;
  line-height: 1.6;
}

.hot-products {
  padding: 80px 0;
  background-color: #1A1A1A;
  background-image: linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 40px 40px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
}

.section-header h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: #FFFFFF;
}

.section-header .divider {
  width: 60px;
  height: 3px;
  background-color: #FF5722;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.product-card {
  overflow: hidden;
}

.product-image {
  position: relative;
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.product-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  padding: 8px 15px;
  background-color: #FF5722;
  font-family: 'Oswald', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
}

.product-info {
  padding: 25px;
}

.product-info .model {
  font-size: 14px;
  color: #00BCD4;
  margin-bottom: 10px;
}

.product-info h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.product-info p {
  font-size: 14px;
  color: #888888;
  margin-bottom: 15px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.product-footer .frequency {
  font-family: 'Oswald', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: #FF5722;
}

.product-footer .btn {
  padding: 8px 20px;
  font-size: 12px;
  background-color: #1E3A5F;
  color: #FFFFFF;
}

.product-footer .btn:hover {
  background-color: #FF5722;
}

.applications {
  padding: 80px 0;
  background-color: #1E3A5F;
}

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

.applications-content h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 40px;
}

.applications-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.application-item {
  display: flex;
  align-items: center;
  gap: 20px;
}

.application-item .number {
  width: 32px;
  height: 32px;
  background-color: #FF5722;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Oswald', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
  flex-shrink: 0;
}

.application-item span {
  font-size: 16px;
  color: #CCCCCC;
  font-weight: 500;
}

.applications-image {
  position: relative;
}

.applications-image img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  border: 1px solid #555555;
}

.applications-stat {
  position: absolute;
  bottom: -30px;
  left: -30px;
  background-color: #1A1A1A;
  border: 1px solid #555555;
  padding: 25px 35px;
}

.applications-stat span {
  font-family: 'Oswald', sans-serif;
  font-size: 48px;
  font-weight: 700;
  color: #FF5722;
}

.applications-stat p {
  font-size: 14px;
  color: #888888;
}

.cta {
  padding: 80px 0;
  background-color: #1A1A1A;
}

.cta-content {
  background: linear-gradient(90deg, rgba(255, 87, 34, 0.2), rgba(0, 188, 212, 0.2));
  border: 1px solid rgba(255, 87, 34, 0.5);
  padding: 60px 40px;
  text-align: center;
}

.cta-content h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.cta-content p {
  font-size: 16px;
  color: #888888;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

footer {
  background-color: #1A1A1A;
  border-top: 1px solid #555555;
  padding: 60px 0;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.footer-logo .logo-icon {
  width: 48px;
  height: 48px;
  background-color: #FF5722;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-logo .logo-icon span {
  font-family: 'Oswald', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: #FFFFFF;
}

.footer-logo-text h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 2px;
}

.footer-logo-text p {
  font-size: 12px;
  color: #888888;
}

.footer-about p {
  font-size: 14px;
  color: #888888;
  margin-bottom: 20px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.footer-contact-item i {
  color: #FF5722;
  font-size: 18px;
  flex-shrink: 0;
}

.footer-contact-item span {
  font-size: 14px;
  color: #888888;
}

.footer-section h4 {
  font-family: 'Oswald', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.footer-section ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-section ul li a {
  font-size: 14px;
  color: #888888;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section ul li a:hover {
  color: #FF5722;
}

.footer-bottom {
  border-top: 1px solid #555555;
  padding-top: 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  font-size: 14px;
  color: #666666;
}

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

.footer-bottom .certifications span {
  font-size: 14px;
  color: #666666;
}

.page-header {
  padding: 120px 0 40px;
  background-color: #1E3A5F;
}

.page-header h1 {
  font-family: 'Oswald', sans-serif;
  font-size: 48px;
  font-weight: 700;
  color: #FFFFFF;
  text-align: center;
}

.page-header p {
  font-size: 16px;
  color: #888888;
  text-align: center;
  margin-top: 15px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 30px;
}

.breadcrumb a {
  font-size: 14px;
  color: #888888;
  text-decoration: none;
  transition: color 0.3s ease;
}

.breadcrumb a:hover {
  color: #FF5722;
}

.breadcrumb span {
  color: #555555;
}

.breadcrumb .current {
  color: #FF5722;
}

.products-page {
  padding: 60px 0;
}

.search-bar {
  position: relative;
  margin-bottom: 30px;
}

.search-bar input {
  width: 100%;
  padding: 15px 20px 15px 50px;
  background-color: rgba(51, 51, 51, 0.5);
  border: 1px solid #555555;
  font-size: 14px;
  color: #FFFFFF;
  outline: none;
  transition: border-color 0.3s ease;
}

.search-bar input:focus {
  border-color: #FF5722;
}

.search-bar input::placeholder {
  color: #666666;
}

.search-bar i {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: #666666;
  font-size: 18px;
}

.category-filter {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.category-filter button {
  padding: 12px 25px;
  background-color: rgba(51, 51, 51, 0.5);
  border: 1px solid #555555;
  font-family: 'Oswald', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: #888888;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.category-filter button:hover {
  border-color: #FF5722;
  color: #FF5722;
}

.category-filter button.active {
  background-color: #FF5722;
  border-color: #FF5722;
  color: #FFFFFF;
}

.product-detail-page {
  padding: 60px 0;
}

.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.detail-images {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.main-image {
  position: relative;
  aspect-ratio: 1;
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
}

.main-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-thumbs {
  display: flex;
  gap: 10px;
}

.image-thumbs button {
  width: 80px;
  height: 80px;
  border: 1px solid #555555;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.image-thumbs button:hover,
.image-thumbs button.active {
  border-color: #FF5722;
}

.image-thumbs button img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-info {
  display: flex;
  flex-direction: column;
}

.detail-badges {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
}

.detail-badges span {
  padding: 8px 15px;
  background-color: #FF5722;
  font-family: 'Oswald', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
}

.detail-badges .frequency {
  background-color: rgba(0, 188, 212, 0.2);
  color: #00BCD4;
  border: 1px solid rgba(0, 188, 212, 0.5);
}

.detail-info h1 {
  font-family: 'Oswald', sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.detail-info p {
  font-size: 16px;
  color: #888888;
  margin-bottom: 30px;
}

.detail-features {
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  padding: 30px;
  margin-bottom: 30px;
}

.detail-features h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.detail-features ul {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.detail-features ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.detail-features ul li i {
  color: #FF5722;
  font-size: 16px;
  flex-shrink: 0;
}

.detail-features ul li span {
  font-size: 14px;
  color: #CCCCCC;
}

.detail-actions {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.detail-actions .btn {
  flex: 1;
  min-width: 150px;
}

.detail-applications {
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  padding: 30px;
}

.detail-applications h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.detail-applications .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.detail-applications .tags span {
  padding: 8px 20px;
  background-color: #1E3A5F;
  font-size: 14px;
  color: #FFFFFF;
  font-weight: 500;
}

.technical-specs {
  margin-top: 60px;
}

.technical-specs h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 30px;
}

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

.specs-table thead {
  background-color: #1E3A5F;
}

.specs-table thead th {
  padding: 15px 20px;
  font-family: 'Oswald', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
  text-align: left;
  letter-spacing: 1px;
}

.specs-table tbody tr:nth-child(even) {
  background-color: rgba(51, 51, 51, 0.3);
}

.specs-table tbody td {
  padding: 15px 20px;
  border-bottom: 1px solid #555555;
}

.specs-table tbody td:first-child {
  color: #888888;
}

.specs-table tbody td:last-child {
  color: #FFFFFF;
  font-weight: 500;
}

.related-products {
  margin-top: 60px;
}

.related-products h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 30px;
}

.news-page {
  padding: 60px 0;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.news-card {
  overflow: hidden;
}

.news-image {
  position: relative;
  overflow: hidden;
}

.news-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.news-category {
  position: absolute;
  top: 15px;
  left: 15px;
  padding: 8px 15px;
  background-color: #FF5722;
  font-family: 'Oswald', sans-serif;
  font-size: 12px;
  font-weight: 700;
  color: #FFFFFF;
  text-transform: uppercase;
}

.news-info {
  padding: 25px;
}

.news-date {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #666666;
  margin-bottom: 15px;
}

.news-info h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 15px;
  transition: color 0.3s ease;
}

.news-card:hover .news-info h3 {
  color: #FF5722;
}

.news-info p {
  font-size: 14px;
  color: #888888;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-read-more {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #00BCD4;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.3s ease;
}

.news-read-more:hover {
  color: #FF5722;
}

.news-detail-page {
  padding: 60px 0;
}

.news-detail-content {
  max-width: 800px;
  margin: 0 auto;
}

.news-detail-header {
  margin-bottom: 40px;
}

.news-detail-header .news-category {
  position: static;
  display: inline-block;
  margin-bottom: 20px;
}

.news-detail-header h1 {
  font-family: 'Oswald', sans-serif;
  font-size: 40px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.news-detail-header .news-date {
  margin-bottom: 30px;
}

.news-detail-image {
  width: 100%;
  height: 400px;
  margin-bottom: 40px;
}

.news-detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 1px solid #555555;
}

.news-detail-body {
  font-size: 16px;
  color: #CCCCCC;
  line-height: 1.8;
}

.news-detail-body p {
  margin-bottom: 20px;
}

.news-detail-body h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: #FFFFFF;
  margin: 30px 0 20px;
}

.news-detail-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 40px;
  padding-top: 30px;
  border-top: 1px solid #555555;
}

.news-tags {
  display: flex;
  align-items: center;
  gap: 15px;
}

.news-tags span {
  font-size: 14px;
  color: #666666;
}

.news-tags .tag {
  padding: 5px 15px;
  background-color: rgba(51, 51, 51, 0.5);
  color: #888888;
}

.news-share {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #888888;
  font-size: 14px;
}

.news-share button {
  width: 36px;
  height: 36px;
  background-color: rgba(51, 51, 51, 0.5);
  border: 1px solid #555555;
  color: #888888;
  cursor: pointer;
  transition: all 0.3s ease;
}

.news-share button:hover {
  border-color: #FF5722;
  color: #FF5722;
}

.related-news {
  margin-top: 60px;
  padding-top: 60px;
  border-top: 1px solid #555555;
}

.related-news h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 30px;
}

.related-news-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.related-news-item {
  display: flex;
  gap: 20px;
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  padding: 20px;
  text-decoration: none;
  transition: border-color 0.3s ease;
}

.related-news-item:hover {
  border-color: #FF5722;
}

.related-news-item img {
  width: 120px;
  height: 80px;
  object-fit: cover;
  flex-shrink: 0;
}

.related-news-item h4 {
  font-family: 'Oswald', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.related-news-item p {
  font-size: 14px;
  color: #666666;
}

.about-page {
  padding: 60px 0;
}

.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 60px;
}

.about-intro h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 30px;
}

.about-intro p {
  font-size: 16px;
  color: #888888;
  margin-bottom: 20px;
  line-height: 1.8;
}

.about-image {
  position: relative;
}

.about-image img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  border: 1px solid #555555;
}

.about-stat {
  position: absolute;
  bottom: -30px;
  right: -30px;
  background-color: #FF5722;
  padding: 30px;
}

.about-stat span {
  font-family: 'Oswald', sans-serif;
  font-size: 48px;
  font-weight: 700;
  color: #FFFFFF;
}

.about-stat p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

.stats-section {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 60px;
}

.stat-card {
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  padding: 40px;
  text-align: center;
}

.stat-card i {
  font-size: 48px;
  color: #FF5722;
  margin-bottom: 20px;
}

.stat-card .value {
  font-family: 'Oswald', sans-serif;
  font-size: 48px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.stat-card .label {
  font-size: 14px;
  color: #888888;
}

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

.why-us h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 40px;
}

.why-us-list {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.why-us-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.why-us-item .check {
  width: 32px;
  height: 32px;
  background-color: #FF5722;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.why-us-item .check i {
  color: #FFFFFF;
  font-size: 16px;
}

.why-us-item-content h4 {
  font-family: 'Oswald', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.why-us-item-content p {
  font-size: 14px;
  color: #888888;
}

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

.cert-card {
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  padding: 30px;
  text-align: center;
}

.cert-card i {
  font-size: 48px;
  color: #00BCD4;
  margin-bottom: 15px;
}

.cert-card span {
  font-family: 'Oswald', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
}

.history-section {
  margin-top: 60px;
}

.history-section h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  text-align: center;
  margin-bottom: 60px;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: #555555;
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  margin-bottom: 40px;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-content {
  width: 45%;
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  padding: 25px;
}

.timeline-content .year {
  font-family: 'Oswald', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: #FF5722;
  margin-bottom: 10px;
}

.timeline-content .event {
  font-size: 14px;
  color: #CCCCCC;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background-color: #FF5722;
  border-radius: 50%;
  border: 4px solid #1A1A1A;
}

.contact-page {
  padding: 60px 0;
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 60px;
}

.contact-info-card {
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  padding: 35px;
  text-align: center;
}

.contact-info-card i {
  font-size: 36px;
  color: #FF5722;
  margin-bottom: 20px;
}

.contact-info-card h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 15px;
}

.contact-info-card p {
  font-size: 14px;
  color: #888888;
}

.contact-form-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-form h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 30px;
}

.contact-form form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  padding: 15px;
  background-color: rgba(51, 51, 51, 0.5);
  border: 1px solid #555555;
  font-size: 14px;
  color: #FFFFFF;
  outline: none;
  transition: border-color 0.3s ease;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: #FF5722;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #666666;
}

.contact-form textarea {
  resize: none;
  min-height: 120px;
}

.contact-form label {
  font-size: 14px;
  color: #888888;
  margin-bottom: 5px;
}

.contact-location h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 30px;
}

.location-map {
  width: 100%;
  height: 350px;
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  margin-bottom: 30px;
}

.location-map img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.global-offices {
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  padding: 30px;
}

.global-offices h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.global-offices-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.global-offices-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.global-offices-item .city {
  font-size: 14px;
  color: #FFFFFF;
  font-weight: 500;
}

.global-offices-item .role {
  font-size: 12px;
  color: #666666;
}

.downloads-page {
  padding: 60px 0;
}

.download-categories {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.download-categories button {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  background-color: rgba(51, 51, 51, 0.5);
  border: 1px solid #555555;
  font-family: 'Oswald', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: #888888;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.download-categories button:hover {
  border-color: #FF5722;
  color: #FF5722;
}

.download-categories button.active {
  background-color: #FF5722;
  border-color: #FF5722;
  color: #FFFFFF;
}

.downloads-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.download-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  padding: 25px;
  transition: border-color 0.3s ease;
}

.download-item:hover {
  border-color: #FF5722;
}

.download-item-info {
  display: flex;
  align-items: center;
  gap: 25px;
}

.download-icon {
  width: 64px;
  height: 64px;
  background-color: #1E3A5F;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: #00BCD4;
}

.download-item-details h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.download-item-details p {
  font-size: 14px;
  color: #888888;
  margin-bottom: 10px;
}

.download-item-details .category {
  display: inline-block;
  padding: 5px 15px;
  background-color: rgba(51, 51, 51, 0.5);
  font-size: 12px;
  color: #888888;
}

.download-item .btn {
  padding: 12px 25px;
}

.download-cta {
  margin-top: 60px;
  padding: 40px;
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  text-align: center;
}

.download-cta h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.download-cta p {
  font-size: 14px;
  color: #888888;
  margin-bottom: 30px;
}

.login-page {
  padding: 120px 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  width: 100%;
  max-width: 450px;
}

.login-header {
  text-align: center;
  margin-bottom: 30px;
}

.login-logo {
  width: 64px;
  height: 64px;
  background-color: #FF5722;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.login-logo span {
  font-family: 'Oswald', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: #FFFFFF;
}

.login-header h1 {
  font-family: 'Oswald', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.login-header p {
  font-size: 14px;
  color: #888888;
}

.login-form {
  background-color: rgba(51, 51, 51, 0.3);
  border: 1px solid #555555;
  padding: 40px;
}

.login-form form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.login-form label {
  font-size: 14px;
  color: #888888;
  margin-bottom: 5px;
}

.login-form input {
  padding: 15px;
  background-color: rgba(51, 51, 51, 0.5);
  border: 1px solid #555555;
  font-size: 14px;
  color: #FFFFFF;
  outline: none;
  transition: border-color 0.3s ease;
}

.login-form input:focus {
  border-color: #FF5722;
}

.login-form input::placeholder {
  color: #666666;
}

.password-field {
  position: relative;
}

.password-field button {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: #666666;
  cursor: pointer;
  font-size: 18px;
}

.login-form .btn {
  margin-top: 20px;
}

.login-links {
  text-align: center;
  margin-top: 20px;
}

.login-links p {
  font-size: 14px;
  color: #666666;
}

.login-links a {
  color: #FF5722;
  text-decoration: none;
}

.login-links a:hover {
  text-decoration: underline;
}

.login-divider {
  border-top: 1px solid #555555;
  padding-top: 20px;
  margin-top: 20px;
}

.back-home {
  text-align: center;
  margin-top: 30px;
}

.back-home a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #888888;
  text-decoration: none;
  transition: color 0.3s ease;
}

.back-home a:hover {
  color: #FF5722;
}

@media (max-width: 768px) {
  nav ul {
    display: none;
  }

  .header-contact {
    display: none;
  }

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

  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-content h1 {
    font-size: 40px;
  }

  .hero-buttons {
    justify-content: center;
  }

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

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

  .applications .container {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }

  .product-detail {
    grid-template-columns: 1fr;
  }

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

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

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

  .why-us {
    grid-template-columns: 1fr;
  }

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

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

  .contact-form-section {
    grid-template-columns: 1fr;
  }

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

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

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    flex-direction: column !important;
    align-items: flex-start;
  }

  .timeline-content {
    width: 100%;
    margin-left: 50px;
  }

  .timeline-dot {
    left: 20px;
  }
}