:root {
  --bg-deep: #0A1628;
  --bg-card: #1E3A5F;
  --accent: #00D4FF;
  --accent-dim: rgba(0, 212, 255, 0.2);
  --sky-blue: #4A90D9;
  --text-primary: #E8F4FC;
  --text-secondary: #8BA3B9;
  --gradient-blue: linear-gradient(135deg, #0D1F35 0%, #1E3A5F 100%);
  --glow: 0 0 30px rgba(0, 212, 255, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans SC', sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 60px;
  z-index: 1000;
  transition: background 0.3s ease, backdrop-filter 0.3s ease;
}

.nav.scrolled {
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(20px);
}

.nav-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--sky-blue));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 18px;
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: 40px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

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

.nav-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 10px;
}

.nav-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

#particles-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 20px;
}

.hero-title {
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 4px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease forwards 0.3s;
}

.hero-title span {
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(16px, 2.5vw, 24px);
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 8px;
  margin-bottom: 50px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease forwards 0.6s;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
  font-size: 16px;
  font-weight: 500;
  border-radius: 50px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease forwards 0.9s;
}

.hero-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--accent);
  transition: left 0.3s ease;
  z-index: -1;
}

.hero-cta:hover {
  color: var(--bg-deep);
}

.hero-cta:hover::before {
  left: 0;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 12px;
  letter-spacing: 2px;
  opacity: 0;
  animation: fadeIn 1s ease forwards 1.5s;
}

.scroll-indicator {
  width: 24px;
  height: 40px;
  border: 2px solid var(--text-secondary);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollBounce 1.5s ease-in-out infinite;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes scrollBounce {
  0%, 100% { top: 8px; opacity: 1; }
  50% { top: 20px; opacity: 0.5; }
}

/* Section Styles */
.section {
  padding: 120px 60px;
  max-width: 1400px;
  margin: 0 auto;
}

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

.section-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.stat-item {
  text-align: center;
  padding: 30px;
  background: var(--gradient-blue);
  border-radius: 16px;
  border: 1px solid var(--accent-dim);
  transition: all 0.3s ease;
}

.stat-item:hover {
  border-color: var(--accent);
  box-shadow: var(--glow);
  transform: translateY(-5px);
}

.stat-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* Services Section */
#services {
  background: linear-gradient(180deg, var(--bg-deep) 0%, rgba(30, 58, 95, 0.1) 50%, var(--bg-deep) 100%);
}

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

.service-card {
  padding: 40px 30px;
  background: var(--gradient-blue);
  border-radius: 20px;
  border: 1px solid var(--accent-dim);
  transition: all 0.4s ease;
  cursor: pointer;
}

.service-card:hover {
  border-color: var(--accent);
  box-shadow: var(--glow);
  transform: translateY(-10px);
}

.service-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  background: linear-gradient(135deg, var(--accent), var(--sky-blue));
  border-radius: 16px;
}

.service-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* News Section */
.news-filters {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 24px;
  background: transparent;
  border: 1px solid var(--accent-dim);
  color: var(--text-secondary);
  border-radius: 50px;
  font-size: 14px;
  font-family: 'Noto Sans SC', sans-serif;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-deep);
}

.news-grid {
  display: grid;
  gap: 30px;
}

.news-item {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 30px;
  padding: 24px;
  background: var(--gradient-blue);
  border-radius: 16px;
  border: 1px solid transparent;
  transition: all 0.3s ease;
  cursor: pointer;
}

.news-item:hover {
  border-color: var(--accent-dim);
  transform: translateX(10px);
}

.news-thumb {
  width: 280px;
  height: 180px;
  background: linear-gradient(135deg, var(--bg-card), var(--sky-blue));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: var(--accent-dim);
}

.news-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}

.news-tag {
  padding: 4px 12px;
  background: var(--accent);
  color: var(--bg-deep);
  font-size: 12px;
  font-weight: 500;
  border-radius: 50px;
}

.news-date {
  font-size: 13px;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
}

.news-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  transition: color 0.3s ease;
}

.news-item:hover .news-title {
  color: var(--accent);
}

.news-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Contact Section */
#contact {
  background: linear-gradient(180deg, var(--bg-deep) 0%, rgba(30, 58, 95, 0.15) 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.contact-info h3 {
  font-size: 24px;
  margin-bottom: 24px;
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 30px;
  line-height: 1.8;
}

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

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-blue);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 20px;
}

.contact-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.contact-value {
  font-size: 15px;
}

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

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

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

.form-group label {
  font-size: 13px;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  padding: 14px 18px;
  background: rgba(30, 58, 95, 0.5);
  border: 1px solid var(--accent-dim);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 15px;
  font-family: 'Noto Sans SC', sans-serif;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.submit-btn {
  padding: 16px 40px;
  background: var(--accent);
  border: none;
  border-radius: 50px;
  color: var(--bg-deep);
  font-size: 16px;
  font-weight: 600;
  font-family: 'Noto Sans SC', sans-serif;
  cursor: pointer;
  transition: all 0.3s ease;
}

.submit-btn:hover {
  box-shadow: var(--glow);
  transform: translateY(-3px);
}

/* Footer */
.footer {
  padding: 40px 60px;
  border-top: 1px solid var(--accent-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 30px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.3s ease;
}

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

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }

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

  .news-thumb {
    width: 100%;
    height: 200px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 80px 24px;
  }

  .nav {
    padding: 0 24px;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.98);
    flex-direction: column;
    padding: 30px;
    gap: 24px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-menu-btn {
    display: flex;
  }

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

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

  .footer {
    flex-direction: column;
    gap: 20px;
    text-align: center;
    padding: 30px 24px;
  }
}

/* ========== News Page Styles ========== */

/* Page Header */
.page-header {
  padding: 140px 60px 80px;
  text-align: center;
  background: linear-gradient(180deg, rgba(30, 58, 95, 0.2) 0%, var(--bg-deep) 100%);
}

.page-header .section-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.page-header h1 {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  margin-bottom: 16px;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 16px;
}

/* News List Layout */
.news-list-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px;
}

.news-filters {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 24px;
  background: transparent;
  border: 1px solid var(--accent-dim);
  color: var(--text-secondary);
  border-radius: 50px;
  font-size: 14px;
  font-family: 'Noto Sans SC', sans-serif;
  text-decoration: none;
  transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-deep);
}

.news-list {
  display: grid;
  gap: 30px;
}

.news-card {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 30px;
  padding: 24px;
  background: var(--gradient-blue);
  border-radius: 16px;
  border: 1px solid transparent;
  transition: all 0.3s ease;
  text-decoration: none;
  color: inherit;
}

.news-card:hover {
  border-color: var(--accent-dim);
  transform: translateX(10px);
  box-shadow: var(--glow);
}

.news-thumb {
  width: 300px;
  height: 200px;
  background: linear-gradient(135deg, var(--bg-card), var(--sky-blue));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  color: var(--accent-dim);
  overflow: hidden;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}

.news-tag {
  padding: 4px 12px;
  background: var(--accent);
  color: var(--bg-deep);
  font-size: 12px;
  font-weight: 500;
  border-radius: 50px;
}

.news-date {
  font-size: 13px;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
}

.news-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
  transition: color 0.3s ease;
}

.news-card:hover .news-title {
  color: var(--accent);
}

.news-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-views {
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 60px;
}

.page-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--gradient-blue);
  border: 1px solid var(--accent-dim);
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 14px;
  font-family: 'JetBrains Mono', monospace;
  text-decoration: none;
  transition: all 0.3s ease;
}

.page-btn:hover,
.page-btn.active {
  border-color: var(--accent);
  color: var(--accent);
}

/* ========== Article Detail Page Styles ========== */
.article-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 140px 60px 80px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 40px;
  font-size: 14px;
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.breadcrumb span {
  color: var(--text-secondary);
}

.breadcrumb-current {
  color: var(--text-primary);
}

.article-header {
  margin-bottom: 40px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
}

.article-tag {
  padding: 6px 16px;
  background: var(--accent);
  color: var(--bg-deep);
  font-size: 13px;
  font-weight: 500;
  border-radius: 50px;
}

.article-date {
  font-size: 14px;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
}

.article-views {
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
}

.article-featured {
  width: 100%;
  height: 400px;
  background: linear-gradient(135deg, var(--bg-card), var(--sky-blue));
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 100px;
  margin-bottom: 40px;
}

.article-content {
  font-size: 16px;
  line-height: 2;
  color: var(--text-secondary);
}

.article-content p {
  margin-bottom: 24px;
}

.article-content h2 {
  font-size: 24px;
  color: var(--text-primary);
  margin: 40px 0 20px;
}

.article-content h3 {
  font-size: 20px;
  color: var(--text-primary);
  margin: 30px 0 16px;
}

.article-content ul,
.article-content ol {
  margin: 20px 0;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 12px;
}

.article-content blockquote {
  border-left: 4px solid var(--accent);
  padding: 20px 24px;
  margin: 30px 0;
  background: var(--gradient-blue);
  border-radius: 0 12px 12px 0;
  font-style: italic;
}

.article-content code {
  background: rgba(0, 212, 255, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
}

.article-footer {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--accent-dim);
}

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

.article-tag-item {
  padding: 6px 16px;
  background: var(--gradient-blue);
  border: 1px solid var(--accent-dim);
  border-radius: 50px;
  font-size: 13px;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.article-tag-item:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.related-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--text-primary);
}

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

.related-card {
  padding: 20px;
  background: var(--gradient-blue);
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
}

.related-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-5px);
}

.related-card-date {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 8px;
}

.related-card-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  transition: color 0.3s ease;
}

.related-card:hover .related-card-title {
  color: var(--accent);
}

.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 40px;
}

.article-nav-btn {
  flex: 1;
  padding: 16px 20px;
  background: var(--gradient-blue);
  border: 1px solid var(--accent-dim);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.article-nav-btn:hover {
  border-color: var(--accent);
}

.article-nav-btn.next {
  text-align: right;
}

.article-nav-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.article-nav-title {
  font-size: 14px;
  color: var(--text-primary);
  transition: color 0.3s ease;
}

.article-nav-btn:hover .article-nav-title {
  color: var(--accent);
}

.article-nav-btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

@media (max-width: 768px) {
  .page-header {
    padding: 120px 24px 60px;
  }

  .news-list-container {
    padding: 40px 24px;
  }

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

  .news-thumb {
    width: 100%;
    height: 200px;
  }

  .article-container {
    padding: 120px 24px 60px;
  }

  .article-featured {
    height: 240px;
    font-size: 60px;
  }

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

  .article-nav {
    flex-direction: column;
  }

  .footer {
    flex-direction: column;
    gap: 20px;
    text-align: center;
    padding: 30px 24px;
  }
}

/* ========== About Page Styles ========== */

/* About Intro Section */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 80px;
  align-items: start;
}

.about-intro-text h2 {
  font-size: 28px;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.about-intro-text p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-intro-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.stat-card {
  text-align: center;
  padding: 28px 20px;
  background: var(--gradient-blue);
  border-radius: 16px;
  border: 1px solid var(--accent-dim);
  transition: all 0.3s ease;
}

.stat-card:hover {
  border-color: var(--accent);
  box-shadow: var(--glow);
  transform: translateY(-5px);
}

.stat-card .stat-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-card .stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* Culture Section */
.culture-section {
  background: linear-gradient(180deg, var(--bg-deep) 0%, rgba(30, 58, 95, 0.15) 50%, var(--bg-deep) 100%);
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.culture-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--gradient-blue);
  border-radius: 20px;
  border: 1px solid var(--accent-dim);
  transition: all 0.3s ease;
}

.culture-card:hover {
  border-color: var(--accent);
  transform: translateY(-8px);
  box-shadow: var(--glow);
}

.culture-card .culture-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

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

.culture-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Services Tabs */
.services-tabs-wrapper {
  max-width: 1100px;
  margin: 0 auto;
}

.tab-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.tab-btn {
  padding: 16px 24px;
  background: var(--gradient-blue);
  border: 1px solid var(--accent-dim);
  border-radius: 12px;
  color: var(--text-secondary);
  font-size: 15px;
  font-family: 'Noto Sans SC', sans-serif;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
}

.tab-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-deep);
  font-weight: 600;
}

.tab-content {
  background: var(--gradient-blue);
  border-radius: 20px;
  border: 1px solid var(--accent-dim);
  overflow: hidden;
}

.tab-panel {
  display: none;
  padding: 40px;
}

.tab-panel.active {
  display: block;
}

.service-detail {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 36px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--accent-dim);
}

.service-detail-icon {
  width: 72px;
  height: 72px;
  min-width: 72px;
  background: linear-gradient(135deg, var(--accent), var(--sky-blue));
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-detail-info h3 {
  font-size: 26px;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.service-tagline {
  color: var(--accent);
  font-size: 16px;
  margin-bottom: 12px;
}

.service-desc {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

.service-features-wrapper {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
}

.service-features-list h4,
.service-scenarios-list h4 {
  font-size: 16px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.service-features-list ul {
  list-style: none;
  padding: 0;
}

.service-features-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--accent-dim);
  font-size: 14px;
  color: var(--text-secondary);
}

.service-features-list li:last-child {
  border-bottom: none;
}

.service-features-list li strong {
  color: var(--text-primary);
}

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

.scenario-tag {
  padding: 8px 18px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid var(--accent-dim);
  border-radius: 50px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* About Page Responsive */
@media (max-width: 1024px) {
  .culture-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-intro {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .about-intro-stats {
    max-width: 400px;
  }

  .service-features-wrapper {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .culture-grid {
    grid-template-columns: 1fr;
  }

  .tab-nav {
    grid-template-columns: 1fr;
  }

  .tab-panel {
    padding: 24px;
  }

  .service-detail {
    flex-direction: column;
    text-align: center;
  }

  .service-detail-icon {
    margin: 0 auto;
  }
}