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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: #1f2937;
  line-height: 1.6;
  background: #fff;
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  z-index: 100;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo {
  width: 100px;
  height: 60px;
  object-fit: contain;
}

.logo-text .company-name {
  font-size: 18px;
  font-weight: 700;
  color: #0a2463;
  margin: 0;
}

.logo-text .company-subtitle {
  font-size: 12px;
  color: #6b7280;
  margin: 0;
}

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

.nav-link {
  text-decoration: none;
  color: #374151;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: #3b82f6;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 2px;
  background: #3b82f6;
  border-radius: 1px;
}

.hero-section {
  padding: 140px 0 100px;
  background: linear-gradient(135deg, #0a2463 0%, #1e3a8a 100%);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 20px;
  opacity: 0.9;
  margin-bottom: 32px;
}

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

.btn-hero {
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  display: inline-block;
}

.btn-hero.btn-primary {
  background: #fff;
  color: #0a2463;
}

.btn-hero.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-hero.btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-hero.btn-secondary:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.features-section {
  padding: 60px 0;
  background: #fff;
  margin-top: -60px;
  position: relative;
  z-index: 2;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  background: #fff;
  padding: 32px;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.feature-item {
  text-align: center;
  padding: 16px;
}

.feature-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.feature-item h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #111827;
}

.feature-item p {
  font-size: 13px;
  color: #6b7280;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 8px;
  color: #111827;
}

.section-desc {
  text-align: center;
  color: #6b7280;
  font-size: 16px;
  margin-bottom: 48px;
}

.home-services {
  padding: 80px 0;
  background: #f9fafb;
}

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

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

.service-card {
  background: #fff;
  border-radius: 16px;
  padding: 32px 24px;
  border: 1px solid #e5e7eb;
  transition: all 0.3s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
  border-color: #3b82f6;
}

.service-card.large {
  padding: 40px 32px;
}

.service-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.service-icon-large {
  font-size: 64px;
  margin-bottom: 20px;
}

.service-card h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #111827;
}

.service-card.large h4 {
  font-size: 22px;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 14px;
  color: #6b7280;
  line-height: 1.6;
}

.service-card.large .service-desc {
  font-size: 15px;
  margin-bottom: 20px;
  color: #4b5563;
}

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

.service-features li {
  font-size: 14px;
  color: #374151;
  padding: 6px 0;
}

.section-more {
  text-align: center;
  margin-top: 40px;
}

.btn-more {
  display: inline-block;
  padding: 12px 32px;
  color: #3b82f6;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid #3b82f6;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.btn-more:hover {
  background: #3b82f6;
  color: #fff;
}

.home-tracking {
  padding: 80px 0;
  background: linear-gradient(135deg, #1e3a8a 0%, #0a2463 100%);
  color: #fff;
}

.tracking-box {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.tracking-box h3 {
  font-size: 28px;
  margin-bottom: 8px;
}

.tracking-box p {
  font-size: 16px;
  opacity: 0.8;
  margin-bottom: 24px;
}

.tracking-input-inline {
  display: flex;
  gap: 12px;
}

.tracking-input {
  flex: 1;
  padding: 14px 20px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  font-size: 16px;
  outline: none;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.tracking-input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.tracking-input:focus {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.15);
}

.btn-track {
  padding: 14px 32px;
  background: #fff;
  color: #0a2463;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-track:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-track.large {
  padding: 16px 40px;
  font-size: 17px;
}

.site-footer {
  background: #111827;
  color: #fff;
  padding: 60px 0 24px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

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

.footer-logo-img {
  width: 90px;
  height: 55px;
  object-fit: contain;
}

.footer-company {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}

.footer-subtitle {
  font-size: 12px;
  color: #9ca3af;
  margin: 0;
}

.footer-desc {
  font-size: 14px;
  color: #9ca3af;
  line-height: 1.6;
}

.footer-col h5 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #fff;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #9ca3af;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #3b82f6;
}

.footer-contact {
  list-style: none;
  padding: 0;
}

.footer-contact li {
  font-size: 14px;
  color: #9ca3af;
  margin-bottom: 12px;
  line-height: 1.5;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid #374151;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #6b7280;
}

.page-hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #0a2463 0%, #1e3a8a 100%);
  color: #fff;
  text-align: center;
}

.page-hero-title {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 12px;
}

.page-hero-subtitle {
  font-size: 18px;
  opacity: 0.9;
}

.tracking-page {
  padding: 60px 0;
  background: #f9fafb;
  min-height: calc(100vh - 400px);
}

.tracking-form-wrapper {
  max-width: 700px;
  margin: 0 auto 40px;
}

.tracking-form-large {
  background: #fff;
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.tracking-form-large .tracking-input-group.large {
  width: 100%;
  max-width: 600px;
}

.tracking-form-large .tracking-tips {
  width: 100%;
  text-align: center;
}

.tracking-input-group.large {
  margin-bottom: 16px;
}

.tracking-input-group.large .tracking-input {
  background: #f9fafb;
  border: 2px solid #e5e7eb;
  color: #1f2937;
  padding: 18px 24px;
  font-size: 17px;
}

.tracking-input-group.large .tracking-input::placeholder {
  color: #9ca3af;
}

.tracking-input-group.large .tracking-input:focus {
  border-color: #3b82f6;
  background: #fff;
}

.tracking-form-large .btn-track {
  background: #3b82f6;
  color: #fff;
}

.tracking-form-large .btn-track:hover {
  background: #2563eb;
}

.tracking-tips {
  text-align: center;
  color: #9ca3af;
  font-size: 13px;
}

.tracking-result {
  max-width: 800px;
  margin: 0 auto;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  padding: 32px;
  margin-bottom: 40px;
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #e5e7eb;
}

.result-header h4 {
  font-size: 20px;
  font-weight: 600;
  color: #111827;
}

.status-badge {
  padding: 6px 16px;
  background: #dbeafe;
  color: #1d4ed8;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
}

.status-badge.success {
  background: #dcfce7;
  color: #16a34a;
}

.status-badge.error {
  background: #fee2e2;
  color: #dc2626;
}

.result-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
  padding: 16px;
  background: #f9fafb;
  border-radius: 8px;
}

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

.info-label {
  font-size: 12px;
  color: #6b7280;
  margin-bottom: 4px;
}

.info-value {
  font-size: 15px;
  font-weight: 600;
  color: #111827;
}

.result-divider {
  text-align: center;
  margin: 24px 0;
  position: relative;
}

.result-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: #e5e7eb;
}

.result-divider span {
  background: #fff;
  padding: 0 16px;
  position: relative;
  color: #6b7280;
  font-size: 14px;
  font-weight: 500;
}

.timeline {
  position: relative;
  padding-left: 24px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: #e5e7eb;
}

.timeline-item {
  position: relative;
  padding-bottom: 24px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -20px;
  top: 4px;
  width: 16px;
  height: 16px;
  background: #22c55e;
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 2px #22c55e;
}

.timeline-content {
  background: #fff;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
}

.timeline-item:first-child .timeline-content {
  background: #f0fdf4;
  border-color: #bbf7d0;
}

.timeline-text {
  font-size: 14px;
  color: #374151;
  margin-bottom: 4px;
  line-height: 1.5;
}

.timeline-location {
  font-size: 12px;
  color: #6b7280;
  margin-bottom: 4px;
}

.timeline-time {
  font-size: 12px;
  color: #9ca3af;
}

.tracking-error {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 48px 32px;
  background: #fef2f2;
  border-radius: 16px;
}

.tracking-error .error-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.tracking-error p {
  color: #dc2626;
  font-size: 16px;
}

.services-page {
  padding: 80px 0;
  background: #f9fafb;
}

.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #0a2463 0%, #1e3a8a 100%);
  color: #fff;
  text-align: center;
}

.cta-content h3 {
  font-size: 32px;
  margin-bottom: 12px;
}

.cta-content p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 32px;
}

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

.about-page {
  padding: 80px 0;
  background: #fff;
}

.about-intro {
  max-width: 900px;
  margin: 0 auto 60px;
}

.about-intro-text h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 20px;
  color: #111827;
}

.about-intro-text p {
  font-size: 16px;
  color: #4b5563;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-values {
  margin-bottom: 80px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.value-item {
  text-align: center;
  padding: 32px 24px;
  background: #f9fafb;
  border-radius: 16px;
  transition: all 0.3s ease;
}

.value-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.value-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.value-item h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #111827;
}

.value-item p {
  font-size: 14px;
  color: #6b7280;
  line-height: 1.6;
}

.about-features-full {
  margin-bottom: 40px;
}

.features-list {
  max-width: 900px;
  margin: 0 auto;
}

.feature-row {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: #f9fafb;
  border-radius: 12px;
  margin-bottom: 16px;
  transition: all 0.3s ease;
}

.feature-row:hover {
  background: #eff6ff;
}

.feature-row-icon {
  width: 48px;
  height: 48px;
  background: #3b82f6;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.feature-row-content h4 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #111827;
}

.feature-row-content p {
  font-size: 14px;
  color: #6b7280;
  line-height: 1.6;
}

.contact-page {
  padding: 80px 0;
  background: #f9fafb;
}

.contact-grid-large {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.contact-card-large {
  background: #fff;
  padding: 40px 32px;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.contact-card-large:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.contact-icon-large {
  font-size: 56px;
  margin-bottom: 16px;
}

.contact-card-large h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #111827;
}

.contact-card-large p {
  font-size: 15px;
  color: #4b5563;
  margin-bottom: 4px;
}

.contact-hint {
  font-size: 13px !important;
  color: #9ca3af !important;
  margin-top: 8px;
}

.contact-info-section {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  max-width: 900px;
  margin: 0 auto 60px;
}

.contact-info-col h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 20px;
  color: #111827;
}

.info-list {
  list-style: none;
  padding: 0;
}

.info-list li {
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid #e5e7eb;
  font-size: 15px;
}

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

.info-label {
  color: #6b7280;
}

.info-value {
  color: #111827;
  font-weight: 500;
}

.faq-section {
  margin-bottom: 40px;
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  padding: 28px 32px;
  border-radius: 12px;
  margin-bottom: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.faq-item h4 {
  font-size: 16px;
  font-weight: 600;
  color: #111827;
  margin-bottom: 10px;
}

.faq-item p {
  font-size: 14px;
  color: #6b7280;
  line-height: 1.7;
}

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

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

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

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

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

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

  .result-info {
    grid-template-columns: 1fr;
  }

  .tracking-input-inline,
  .tracking-input-group.large {
    flex-direction: column;
  }

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

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