:root {
  --color-primary: #0078C8;
  --color-primary-dark: #005A9C;
  --color-accent-silver: #C0C0C0;
  --color-accent-dark-blue: #005A9C;
  --color-dark-blue: #003366;
  --color-text-1: #333333;
  --color-text-2: #666666;
  --color-bg-white: #FFFFFF;
  --color-bg-light-gray: #F5F5F5;
  --color-border-light: #E0E0E0;
  --color-white: #FFFFFF;
  --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.12);
  --border-radius: 4px;
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-text-1);
  background-color: var(--color-bg-white);
}

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

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

ul {
  list-style: none;
}

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

.section {
  padding: 80px 0;
}

.section-bg-light {
  background-color: var(--color-bg-light-gray);
}

.section-title {
  font-size: 2.25rem;
  font-weight: 600;
  color: var(--color-text-1);
  text-align: center;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-2);
  text-align: center;
  margin-bottom: 48px;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--color-text-2);
  max-width: 600px;
  margin: 0 auto;
}

.btn {
  display: inline-block;
  padding: 12px 32px;
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-align: center;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
}

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

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

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.btn-large {
  padding: 14px 32px;
  font-size: 1rem;
}

.btn-block {
  display: block;
  width: 100%;
}

.btn-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

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

.card {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

i[class^="ri-"] {
  display: inline-block;
  font-style: normal;
  vertical-align: middle;
  text-align: center;
  text-transform: none;
  line-height: 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  margin-bottom: 24px;
  font-size: 0.875rem;
  color: var(--color-text-2);
}

.breadcrumb a {
  color: var(--color-text-2);
  text-decoration: none;
  transition: var(--transition);
}

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

.breadcrumb .separator {
  color: var(--color-border-light);
}

.breadcrumb .current {
  color: var(--color-text-1);
  font-weight: 500;
}

.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-dark-blue) 100%);
  color: var(--color-white);
  padding: 80px 0;
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.page-header p {
  font-size: 1.125rem;
  opacity: 0.9;
}

.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-dark-blue) 100%);
  color: var(--color-white);
  padding-bottom: 80px;
}

.cta-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 1.125rem;
  margin-bottom: 32px;
  opacity: 0.9;
}

.cta-content .btn-primary {
  background-color: var(--color-white);
  color: var(--color-primary);
  padding: 14px 40px;
  font-size: 1rem;
  font-weight: 600;
}

.cta-content .btn-primary:hover {
  background-color: var(--color-bg-light-gray);
  color: var(--color-accent-dark-blue);
}

.cta-content .btn-outline {
  border-color: var(--color-white);
  color: var(--color-white);
}

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

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-buttons .btn-outline {
  border-color: var(--color-white);
  color: var(--color-white);
}

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

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
}

.pagination-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius);
  color: var(--color-text-1);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.pagination-link:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.pagination-link.active {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

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

@media (max-width: 992px) {
  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }

  .section-header h2 {
    font-size: 1.75rem;
  }

  .section-header p {
    font-size: 1rem;
  }

  .page-header h1 {
    font-size: 2rem;
  }

  .page-header p {
    font-size: 1rem;
  }

  .cta-content h2 {
    font-size: 1.75rem;
  }

  .cta-content p {
    font-size: 1rem;
  }

  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }

  .cta-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }

  .section {
    padding: 48px 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }

  .page-header h1 {
    font-size: 1.75rem;
  }

  .page-header p {
    font-size: 1rem;
  }

  .section-header h2 {
    font-size: 1.5rem;
  }

  .section-header p {
    font-size: 1rem;
  }

  .cta-content h2 {
    font-size: 1.5rem;
  }

  .cta-content p {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .page-header h1 {
    font-size: 1.5rem;
  }

  .cta-content h2 {
    font-size: 1.5rem;
  }
}

header {
  background-color: #003366;
  border-bottom: none;
  position: relative;
  top: 0;
  z-index: 1000;
  box-shadow: none;
  padding: 10px 0;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.logo {
  display: block;
  height: 50px;
  width: auto;
}

.logo img {
  height: 100%;
  width: auto;
  max-width: 200px;
}

nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  gap: 24px;
}

.nav-item {
}

.nav-link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-white);
  padding: 8px 0;
  position: relative;
}

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

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

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent-silver);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-white);
  transition: var(--transition);
}

@media (max-width: 768px) {
  .nav-list {
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #003366;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    z-index: 1001;
  }
  
  .nav-list.active {
    max-height: 500px;
  }
  
  .nav-item {
    width: 100%;
  }
  
  .nav-link {
    display: block;
    padding: 16px 20px;
    color: var(--color-white);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .nav-link:hover,
  .nav-link.active {
    color: var(--color-accent-silver);
  }
}

@media (max-width: 992px) {
  .mobile-menu-btn {
    display: flex;
  }
}

footer {
  background-color: #003366;
  color: var(--color-white);
  padding: 64px 0 24px;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}

.footer-section h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--color-white);
}

.footer-section p {
  color: var(--color-accent-silver);
  margin-bottom: 16px;
  line-height: 1.8;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--color-accent-silver);
  transition: var(--transition);
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-contact-item i {
  flex-shrink: 0;
  font-size: 20px;
  color: var(--color-primary);
  margin-top: 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  color: var(--color-accent-silver);
  font-size: 0.875rem;
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-section:nth-child(2),
  .footer-section:nth-child(3) {
    display: none;
  }
}

.case-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.case-card-image {
  height: 240px;
  overflow: hidden;
}

.case-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

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

.case-card-content {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-category {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.case-card-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 12px;
  line-height: 1.4;
}

.case-card-content p {
  font-size: 0.875rem;
  color: var(--color-text-2);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.news-card {
  background-color: var(--color-bg-white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-light);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border-light);
  height: 100%;
}

.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.news-card-image {
  position: relative;
  aspect-ratio: 3/2;
}

.news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

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

.news-card-content {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-date {
  font-size: 0.875rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.news-card-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 12px;
  line-height: 1.5;
}

.news-card-content p {
  font-size: 0.875rem;
  color: var(--color-text-2);
  margin-bottom: 16px;
  line-height: 1.6;
  flex: 1;
}

.product-card {
  background-color: var(--color-bg-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  box-shadow: var(--shadow-medium);
  transform: translateY(-4px);
}

.product-card-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1/1;
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

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

.product-card-content {
  padding: 24px;
}

.product-card-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 12px;
}

.product-card-content p {
  font-size: 0.875rem;
  color: var(--color-text-2);
  margin-bottom: 16px;
  line-height: 1.6;
}

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

.feature-item {
  background-color: var(--color-bg-white);
  padding: 40px 32px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  transition: var(--transition);
  text-align: center;
}

.feature-item:hover {
  box-shadow: var(--shadow-medium);
  transform: translateY(-4px);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-dark-blue) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon i {
  font-size: 32px;
  color: var(--color-white);
}

.feature-item h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 12px;
}

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

.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.partner-item {
  background-color: var(--color-bg-white);
  padding: 32px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  filter: grayscale(100%);
  opacity: 0.7;
}

.partner-item:hover {
  filter: grayscale(0%);
  opacity: 1;
  box-shadow: var(--shadow-medium);
}

.partner-item img {
  max-width: 100%;
  height: auto;
  max-height: 100px;
  object-fit: contain;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-icon i {
  font-size: 24px;
  color: var(--color-white);
}

.contact-text h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 4px;
}

.contact-text p {
  font-size: 0.875rem;
  color: var(--color-text-2);
  line-height: 1.6;
}

.social-links h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 16px;
}

.social-icons {
  display: flex;
  gap: 12px;
}

.social-icons a {
  width: 40px;
  height: 40px;
  background-color: var(--color-bg-light-gray);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-1);
  transition: var(--transition);
}

.social-icons a:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-1);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius);
  font-size: 1rem;
  color: var(--color-text-1);
  background-color: var(--color-bg-white);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 120, 200, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #999999;
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.checkbox-group label {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--color-text-2);
  line-height: 1.6;
}

.checkbox-group input[type="checkbox"] {
  margin-top: 4px;
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.faq-item {
  background-color: var(--color-bg-white);
  padding: 32px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
}

.faq-item h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 12px;
  line-height: 1.4;
}

.faq-item p {
  font-size: 0.875rem;
  color: var(--color-text-2);
  line-height: 1.6;
}

.video-container {
  max-width: 900px;
  margin: 0 auto;
}

.video-placeholder {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-light);
}

.video-placeholder img {
  width: 100%;
  height: auto;
  display: block;
}

.video-play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background-color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.video-play-button:hover {
  background-color: var(--color-accent-dark-blue);
  transform: translate(-50%, -50%) scale(1.1);
}

.video-play-button i {
  font-size: 32px;
  color: var(--color-white);
  margin-left: 4px;
}

@media (max-width: 992px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .stat-number {
    font-size: 2.5rem;
  }

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

  .partners-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .stat-number {
    font-size: 2rem;
  }

  .stat-label {
    font-size: 0.875rem;
  }

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

  .feature-item {
    padding: 32px 24px;
  }

  .partners-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .partner-item {
    padding: 24px 16px;
  }

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

  .faq-item {
    padding: 24px;
  }
}

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

  .stat-icon i {
    font-size: 32px;
  }

  .stat-number {
    font-size: 1.75rem;
  }

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