/* ========================================
   Header Styles
   ======================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--white);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

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

@media (min-width: 1024px) {
  .header-inner {
    height: 80px;
  }
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-700);
}

.logo-img {
  height: 26px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
}

.nav-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--white);
  padding: 2rem;
  flex-direction: column;
  gap: 0.5rem;
  overflow-y: auto;
}

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

@media (min-width: 1024px) {
  .nav-menu {
    display: flex;
    position: static;
    flex-direction: row;
    padding: 0;
    gap: 0.25rem;
    background: transparent;
    overflow: visible;
  }
}

.nav-link {
  display: block;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--secondary-600);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-600);
  background: var(--primary-50);
}

@media (min-width: 1024px) {
  .nav-link {
    padding: 0.5rem 0.75rem;
    font-size: 0.9375rem;
  }
}

.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  margin-right: -0.5rem;
}

@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--secondary-700);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.header-actions {
  display: none;
  gap: 0.75rem;
}

@media (min-width: 1024px) {
  .header-actions {
    display: flex;
    align-items: center;
  }
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--secondary-600);
  background: var(--secondary-100);
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
}

.lang-switch:hover {
  background: var(--secondary-200);
}

.menu-overlay {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
}

.menu-overlay.active {
  display: block;
}

@media (min-width: 1024px) {
  .menu-overlay {
    display: none !important;
  }
}

/* ========================================
   Footer Styles
   ======================================== */

.footer {
  background: var(--secondary-900);
  color: var(--secondary-300);
  padding-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--secondary-700);
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
  }
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--secondary-400);
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--primary-400);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.footer-contact-item svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--primary-400);
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem 0;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--secondary-500);
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  font-size: 0.875rem;
  color: var(--secondary-500);
  transition: var(--transition);
}

.footer-legal a:hover {
  color: var(--primary-400);
}

/* ========================================   Floating Action Buttons   ======================================== */

.floating-actions {
  position: fixed;
  right: 2rem;
  bottom: 2rem;
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

/* ========================================   Floating Inquiry Button   ======================================== */

.floating-inquiry {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  animation: pulse-ring 2s infinite;
  cursor: pointer;
}

.floating-inquiry:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
}

.floating-inquiry svg {
  width: 28px;
  height: 28px;
}

@keyframes pulse-ring {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4);
  }
  70% {
    box-shadow: 0 0 0 15px rgba(37, 99, 235, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
  }
}

/* ========================================   Back to Top Button   ======================================== */

.back-to-top {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  cursor: pointer;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
}

.back-to-top svg {
  width: 24px;
  height: 24px;
}

/* ========================================
   Inquiry Modal
   ======================================== */

.inquiry-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1100;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.inquiry-modal.active {
  display: flex;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
}

.modal-content {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-xl);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--secondary-200);
  background: var(--primary-600);
  color: var(--white);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  color: var(--white);
  transition: var(--transition);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

.modal-body {
  padding: 1.5rem;
}

/* ========================================
   Notification Styles
   ======================================== */

.notification {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  transform: translateX(120%);
  transition: transform 0.3s ease;
  max-width: 400px;
}

.notification.show {
  transform: translateX(0);
}

.notification-success {
  border-left: 4px solid var(--accent-500);
}

.notification-content {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.notification-content svg {
  color: var(--accent-500);
}

.notification-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--secondary-100);
  border-radius: var(--radius);
  color: var(--secondary-500);
  transition: var(--transition);
}

.notification-close:hover {
  background: var(--secondary-200);
  color: var(--secondary-700);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  padding-bottom: 2rem;
  background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-900) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--primary-500) 0%, transparent 70%);
  opacity: 0.2;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4rem;
  width: 100%;
  min-height: calc(100vh - 160px);
  padding: 2rem 0;
}

.hero-content {
  flex: 1 1 auto;
  max-width: 100%;
  animation: fade-in-left 0.8s ease-out;
}

@media (min-width: 768px) {
  .hero-content {
    max-width: 80%;
  }
}

@media (min-width: 1024px) {
  .hero-content {
    max-width: 650px;
  }
}

@media (min-width: 1280px) {
  .hero-content {
    max-width: 750px;
  }
}

@keyframes fade-in-left {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.hero-illustration {
  display: none;
  flex: 0 0 auto;
  width: 420px;
  max-width: 45%;
  animation: fade-in-right 0.8s ease-out 0.2s both;
}

@keyframes fade-in-right {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@media (min-width: 1024px) {
  .hero-illustration {
    display: block;
  }
}

@media (min-width: 1280px) {
  .hero-illustration {
    width: 480px;
  }
}

.hero-illustration svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 25px 50px rgba(0, 0, 0, 0.35));
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 9999px;
  color: rgba(255, 255, 255, 0.95);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1.75rem;
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-title span {
  background: linear-gradient(135deg, #fff 0%, var(--primary-200) 50%, var(--primary-300) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-desc strong {
  color: var(--primary-200);
  font-weight: 600;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
  }
}

.stat-item {
  text-align: center;
  padding: 1.25rem 1rem;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
  backdrop-filter: blur(8px);
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.25rem;
}

@media (min-width: 768px) {
  .stat-value {
    font-size: 2rem;
  }
}

.stat-label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  animation: fade-in-up 0.6s ease-out 0.4s both;
}

.btn-outline-hero {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.btn-outline-hero:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  transform: translateY(-2px);
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero Carousel Styles */
.hero-carousel {
  position: relative;
  padding: 0;
}

.carousel-container {
  position: relative;
  width: 100%;
  min-height: 100vh;
}

.carousel-slides {
  position: relative;
  width: 100%;
  min-height: 100vh;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 100vh;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s ease-in-out, visibility 0.6s ease-in-out;
  display: flex;
  align-items: center;
  padding-top: 80px;
  padding-bottom: 2rem;
  background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-900) 100%);
}

.carousel-slide.slide-1 {
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.4) 0%, rgba(23, 37, 84, 0.5) 100%), url('../image/img001.jpg') center center / cover no-repeat;
}

.carousel-slide.slide-2 {
  background: linear-gradient(135deg, #065f46 0%, #047857 50%, #064e3b 100%);
}

.carousel-slide.slide-3 {
  background: linear-gradient(135deg, #0f2744 0%, #083344 50%, #0c3a4d 100%);
}

.carousel-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
  z-index: 0;
}

.carousel-slide.active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

.carousel-slide .container {
  position: relative;
  z-index: 1;
}

.carousel-nav {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  padding: 0 2rem;
  z-index: 10;
  pointer-events: none;
}

@media (min-width: 1280px) {
  .carousel-nav {
    padding: 0 3rem;
  }
}

.carousel-prev,
.carousel-next {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  pointer-events: auto;
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.carousel-prev:hover,
.carousel-next:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.45);
  transform: scale(1.08);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.2);
}

.carousel-dots {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.875rem;
  z-index: 10;
}

.carousel-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  border: 2px solid rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 0;
}

.carousel-dot:hover {
  background: rgba(255, 255, 255, 0.5);
}

.carousel-dot.active {
  background: white;
  border-color: white;
  transform: scale(1.2);
}

.btn-outline-light {
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--white);
  transform: translateY(-2px);
}

.hero-image {
  display: none;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 45%;
  max-width: 600px;
}

@media (min-width: 1024px) {
  .hero-image {
    display: block;
  }
}

/* Hero Tower Illustration */
.hero-tower {
  display: none;
  flex-shrink: 0;
  width: 380px;
  max-width: 40%;
  z-index: 2;
}

@media (min-width: 1100px) {
  .hero-tower {
    display: block;
  }
}

.hero-tower svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* Hero Responsive */
@media (max-width: 1023px) {
  .hero-wrapper {
    justify-content: center;
  }
  
  .hero-content {
    max-width: 700px;
  }
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding-top: 100px;
    padding-bottom: 3rem;
  }
  
  .hero-content {
    text-align: center;
  }
  
  .hero-badge {
    justify-content: center;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-desc {
    font-size: 1rem;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .stat-item {
    padding: 0.75rem;
  }
  
  .stat-value {
    font-size: 1.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero-buttons .btn {
    text-align: center;
  }
  
  .carousel-nav {
    padding: 0 0.5rem;
  }
  
  .carousel-prev,
  .carousel-next {
    width: 40px;
    height: 40px;
  }
  
  .carousel-dots {
    bottom: 1.5rem;
  }
  
  .carousel-dot {
    width: 10px;
    height: 10px;
  }
}

/* Signal Wave Animation */
.signal-waves .wave {
  transform-origin: center;
  animation: pulse-wave 2s ease-out infinite;
}

.signal-waves .wave-1 {
  animation-delay: 0s;
}

.signal-waves .wave-2 {
  animation-delay: 0.3s;
}

.signal-waves .wave-3 {
  animation-delay: 0.6s;
}

.signal-waves .wave-4 {
  animation-delay: 0.9s;
}

@keyframes pulse-wave {
  0% {
    opacity: 0.8;
    transform: scale(0.8);
  }
  50% {
    opacity: 0.5;
  }
  100% {
    opacity: 0;
    transform: scale(1.2);
  }
}

/* LED Blink Animation */
.led-blink {
  animation: blink 1s ease-in-out infinite;
}

.led-blink-slow {
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

/* Tower Float Animation */
.tower-structure {
  animation: float-tower 6s ease-in-out infinite;
}

@keyframes float-tower {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Antenna Glow */
.antenna-array circle {
  animation: glow-pulse 2s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% {
    filter: drop-shadow(0 0 3px rgba(255, 255, 255, 0.5));
  }
  50% {
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.8));
  }
}

/* 5G Label Animation */
.label-5g {
  animation: label-pulse 3s ease-in-out infinite;
}

@keyframes label-pulse {
  0%, 100% {
    opacity: 0.8;
  }
  50% {
    opacity: 1;
  }
}

/* Globe Animation */
.globe-outer-glow {
  animation: globe-pulse 4s ease-in-out infinite;
}

@keyframes globe-pulse {
  0%, 100% {
    opacity: 0.5;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.03);
  }
}

/* Marker Pulse Animation */
.pulse-ring {
  animation: marker-pulse 2s ease-out infinite;
  transform-origin: center;
}

@keyframes marker-pulse {
  0% {
    transform: scale(1);
    opacity: 0.4;
  }
  100% {
    transform: scale(2.5);
    opacity: 0;
  }
}

.marker-1 .pulse-ring { animation-delay: 0s; }
.marker-2 .pulse-ring { animation-delay: 0.2s; }
.marker-3 .pulse-ring { animation-delay: 0.4s; }
.marker-4 .pulse-ring { animation-delay: 0.6s; }
.marker-5 .pulse-ring { animation-delay: 0.8s; }
.marker-6 .pulse-ring { animation-delay: 1s; }
.marker-7 .pulse-ring { animation-delay: 1.2s; }
.marker-8 .pulse-ring { animation-delay: 1.4s; }
.marker-9 .pulse-ring { animation-delay: 1.6s; }

/* Connection Line Animation */
.connection-line {
  stroke-dashoffset: 18;
  animation: dash-flow 2s linear infinite;
}

@keyframes dash-flow {
  to {
    stroke-dashoffset: 0;
  }
}

/* Data Particle Animation */
.data-particle {
  animation: particle-float 3s ease-in-out infinite;
}

@keyframes particle-float {
  0%, 100% {
    opacity: 0.5;
    transform: translateY(0);
  }
  50% {
    opacity: 1;
    transform: translateY(-8px);
  }
}

/* Orbit Ring Animation */
.orbit-ring {
  animation: orbit-rotate 20s linear infinite;
  transform-origin: 200px 220px;
}

.orbit-ring-slow {
  animation: orbit-rotate 35s linear infinite reverse;
  transform-origin: 200px 220px;
}

@keyframes orbit-rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Fan Spin Animation */
.fan-spin {
  animation: fan-rotate 1s linear infinite;
  stroke-dasharray: 4 4;
}

.fan-spin-reverse {
  animation: fan-rotate 1.2s linear infinite reverse;
  stroke-dasharray: 4 4;
}

@keyframes fan-rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Server Room Animation */
.server-room {
  animation: room-glow 4s ease-in-out infinite;
}

@keyframes room-glow {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.95;
  }
}

.rack {
  animation: rack-pulse 3s ease-in-out infinite;
}

@keyframes rack-pulse {
  0%, 100% {
    filter: brightness(1);
  }
  50% {
    filter: brightness(1.05);
  }
}

/* Monitor Display Animation */
.monitor-display rect {
  animation: screen-flicker 0.1s ease-in-out infinite;
}

@keyframes screen-flicker {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.98;
  }
}

/* Global Interconnected Network Animation */
.pulse-ring-hub {
  animation: hub-pulse 2s ease-out infinite;
}

.pulse-ring-hub-2 {
  animation: hub-pulse-2 2s ease-out infinite 0.5s;
}

@keyframes hub-pulse {
  0% {
    transform: scale(1);
    opacity: 0.5;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

@keyframes hub-pulse-2 {
  0% {
    transform: scale(1);
    opacity: 0.3;
  }
  100% {
    transform: scale(2.5);
    opacity: 0;
  }
}

/* Data Flow Animation */
.data-particle-flow {
  animation: flow-pulse 1.5s ease-in-out infinite;
}

@keyframes flow-pulse {
  0%, 100% {
    opacity: 0.4;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.3);
  }
}

/* Satellite Animation */
.satellite {
  animation: satellite-glow 2s ease-in-out infinite;
}

@keyframes satellite-glow {
  0%, 100% {
    filter: drop-shadow(0 0 3px rgba(59, 130, 246, 0.5));
  }
  50% {
    filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.8));
  }
}

/* Orbit Path Animation */
.orbit-path {
  animation: orbit-dash 20s linear infinite;
}

.orbit-path-reverse {
  animation: orbit-dash 25s linear infinite reverse;
}

@keyframes orbit-dash {
  to {
    stroke-dashoffset: -100;
  }
}

/* Signal Wave Animation */
.signal-wave {
  animation: signal-expand 3s ease-out infinite;
  transform-origin: center;
}

.signal-wave:nth-child(1) { animation-delay: 0s; }
.signal-wave:nth-child(2) { animation-delay: 1s; }
.signal-wave:nth-child(3) { animation-delay: 2s; }

@keyframes signal-expand {
  0% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  100% {
    transform: scale(1.2);
    opacity: 0;
  }
}

/* Network Node Animation */
.node {
  animation: node-float 4s ease-in-out infinite;
}

.node:nth-child(odd) {
  animation-delay: 0.5s;
}

@keyframes node-float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-3px);
  }
}

/* Service Center Animation */
.service-center .pulse-ring-hub,
.global-center .pulse-ring-hub {
  animation: service-pulse 2.5s ease-out infinite;
}

@keyframes service-pulse {
  0% {
    transform: scale(1);
    opacity: 0.6;
  }
  100% {
    transform: scale(1.8);
    opacity: 0;
  }
}

/* Client Location Animation */
.client,
.global-nodes .node {
  animation: client-float 3s ease-in-out infinite;
}

.client:nth-child(1),
.global-nodes .node:nth-child(1) { animation-delay: 0s; }
.client:nth-child(2),
.global-nodes .node:nth-child(2) { animation-delay: 0.5s; }
.client:nth-child(3),
.global-nodes .node:nth-child(3) { animation-delay: 1s; }
.client:nth-child(4),
.global-nodes .node:nth-child(4) { animation-delay: 1.5s; }
.client:nth-child(5),
.global-nodes .node:nth-child(5) { animation-delay: 2s; }
.client:nth-child(6),
.global-nodes .node:nth-child(6) { animation-delay: 2.5s; }

@keyframes client-float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

/* Pulse Node Animation */
.pulse-node {
  animation: node-glow 2s ease-in-out infinite;
}

@keyframes node-glow {
  0%, 100% {
    filter: drop-shadow(0 0 3px currentColor);
    opacity: 0.9;
  }
  50% {
    filter: drop-shadow(0 0 8px currentColor);
    opacity: 1;
  }
}

/* Service Connection Animation */
.service-connections .connection-line,
.global-connections line {
  stroke-dasharray: 4 3;
  animation: service-dash 3s linear infinite;
}

@keyframes service-dash {
  0% {
    stroke-dashoffset: 14;
  }
  100% {
    stroke-dashoffset: 0;
  }
}

/* Service Icon Animation */
.service-icons g {
  animation: icon-pulse 2s ease-in-out infinite;
}

.service-icons g:nth-child(1) { animation-delay: 0s; }
.service-icons g:nth-child(2) { animation-delay: 0.3s; }
.service-icons g:nth-child(3) { animation-delay: 0.6s; }

@keyframes icon-pulse {
  0%, 100% {
    opacity: 0.9;
  }
  50% {
    opacity: 1;
  }
}

/* ========================================
   Product Card
   ======================================== */

.product-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid var(--secondary-200);
}

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

.product-image {
  position: relative;
  height: 200px;
  background: #ffffff;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--secondary-200);
}

.product-image img {
  max-width: 90% !important;
  max-height: 90% !important;
  width: auto !important;
  height: auto !important;
  object-fit: contain;
  transition: transform 0.5s ease;
}

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

.product-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.35rem 0.875rem;
  background: var(--primary-600);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  z-index: 10;
}

.product-badge:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: var(--primary-700);
}

/* 不同类型的徽章样式 */
.product-badge.hot {
  background: var(--accent-600);
}

.product-badge.new {
  background: var(--primary-600);
}

.product-badge.featured {
  background: var(--secondary-700);
}

.product-badge.popular {
  background: var(--accent-500);
}

.product-badge.outdoor {
  background: var(--primary-500);
}

.product-badge.flexible {
  background: var(--secondary-600);
}

.product-badge.hybrid {
  background: var(--primary-700);
}

.product-badge.compact {
  background: var(--accent-600);
}

.product-badge.iot {
  background: var(--primary-500);
}

.product-badge.smart {
  background: var(--primary-600);
}

.product-badge.mppt {
  background: var(--accent-500);
}

.product-badge.ip65 {
  background: var(--secondary-700);
}

.product-badge.modular {
  background: var(--primary-700);
}

.product-content {
  padding: 1.5rem;
}

.product-category {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--primary-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.product-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--secondary-900);
  margin-bottom: 0.75rem;
}

.product-desc {
  font-size: 0.875rem;
  color: var(--secondary-500);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.spec-tag {
  padding: 0.25rem 0.5rem;
  background: var(--secondary-100);
  color: var(--secondary-600);
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--secondary-100);
}

.product-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--primary-600);
  transition: var(--transition);
}

.product-link:hover {
  color: var(--primary-700);
  gap: 0.75rem;
}

/* ========================================
   Feature Card
   ======================================== */

.feature-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--secondary-100);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
  border-color: var(--primary-100);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--secondary-900);
  margin-bottom: 0.75rem;
}

.feature-desc {
  font-size: 0.875rem;
  color: var(--secondary-500);
  line-height: 1.7;
}

/* ========================================
   Power System Cards
   ======================================== */

.section-power-systems {
  position: relative;
  overflow: hidden;
}

.power-system-card {
  margin-bottom: 2rem;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.power-system-image {
  position: relative;
  height: 250px;
  overflow: hidden;
}

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

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

.power-system-title {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 40%;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.6) 100%);
  color: var(--white);
  display: flex;
  align-items: center;
  padding: 1.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  z-index: 1;
}

.value-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--secondary-100);
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.value-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
  border-color: var(--primary-100);
}

.value-card:hover::before {
  opacity: 1;
}

.value-card .feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.25rem;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  transition: var(--transition);
}

.value-card:hover .feature-icon {
  transform: scale(1.08);
}

.value-card .feature-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--secondary-900);
  margin-bottom: 0.75rem;
}

.value-card .feature-desc {
  font-size: 0.875rem;
  color: var(--secondary-500);
  line-height: 1.7;
}

.industry-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--secondary-100);
  position: relative;
  overflow: hidden;
}

.industry-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.industry-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--primary-100);
}

.industry-card:hover::before {
  opacity: 1;
}

.industry-card .feature-icon {
  width: 50px;
  height: 50px;
  margin: 0 auto 1rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  transition: var(--transition);
}

.industry-card:hover .feature-icon {
  transform: scale(1.1);
}

.industry-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--secondary-900);
  margin-bottom: 0.5rem;
}

.industry-card p {
  font-size: 0.8rem;
  color: var(--secondary-500);
  line-height: 1.6;
}

/* ========================================
   Solution Card
   ======================================== */

.solution-card {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.solution-card:hover {
  box-shadow: var(--shadow-xl);
}

.solution-image {
  height: 220px;
  background: var(--secondary-100);
  overflow: hidden;
}

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

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

.solution-content {
  padding: 1.5rem;
}

.solution-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--secondary-900);
  margin-bottom: 0.75rem;
}

.solution-desc {
  font-size: 0.875rem;
  color: var(--secondary-500);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.solution-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.solution-list li {
  display: flex;
  align-items: flex-start;
  font-size: 0.875rem;
  color: var(--secondary-600);
  line-height: 1.7;
  margin-bottom: 0.6rem;
  padding-left: 0.5rem;
}

.solution-list li:last-child {
  margin-bottom: 0;
}

.solution-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 50%;
  margin-right: 0.75rem;
  margin-top: 2px;
  flex-shrink: 0;
  box-shadow: 0 2px 4px rgba(59, 130, 246, 0.3);
}

.solution-dot {
  width: 6px;
  height: 6px;
  background: var(--primary-500);
  border-radius: 50%;
  margin-right: 0.75rem;
  margin-top: 0.5rem;
  flex-shrink: 0;
}

.solution-icon {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--primary-500);
  border-radius: 50%;
  margin-right: 0.75rem;
  margin-top: 6px;
  flex-shrink: 0;
  transition: transform 0.2s ease, background 0.2s ease;
}

.solution-list li:hover .solution-icon {
  transform: scale(1.3);
  background: var(--primary-600);
}

.solution-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.solution-feature {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  color: var(--secondary-600);
}

.solution-feature svg {
  width: 1rem;
  height: 1rem;
  color: var(--accent-500);
}

/* ========================================
   CTA Section
   ======================================== */

.cta-section {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
  padding: 4rem 0;
  text-align: center;
}

@media (min-width: 768px) {
  .cta-section {
    padding: 5rem 0;
  }
}

.cta-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--white);
  margin-bottom: 1rem;
}

.cta-desc {
  font-size: 1.125rem;
  color: var(--primary-100);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

/* ========================================
   Filter Buttons
   ======================================== */

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--secondary-600);
  background: var(--white);
  border: 1px solid var(--secondary-200);
  border-radius: 9999px;
  transition: var(--transition);
}

.filter-btn:hover {
  border-color: var(--primary-300);
  color: var(--primary-600);
}

.filter-btn.active {
  background: var(--primary-600);
  border-color: var(--primary-600);
  color: var(--white);
}

/* ========================================
   Page Header
   ======================================== */

.page-header {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
  padding: 8rem 0 4rem;
  text-align: center;
}

.page-title {
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--white);
  margin-bottom: 1rem;
}

.page-subtitle {
  font-size: 1.125rem;
  color: var(--primary-100);
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   Contact Page
   ======================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--secondary-50);
  border-radius: var(--radius-lg);
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-100);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-600);
  flex-shrink: 0;
}

.contact-label {
  font-size: 0.875rem;
  color: var(--secondary-500);
  margin-bottom: 0.25rem;
}

.contact-value {
  font-size: 1rem;
  font-weight: 500;
  color: var(--secondary-900);
}

.contact-form-wrapper {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}

@media (min-width: 768px) {
  .contact-form-wrapper {
    padding: 2.5rem;
  }
}

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

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.about-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .about-hero {
    grid-template-columns: 1fr 1fr;
  }
}

.about-content h2 {
  margin-bottom: 1.5rem;
}

.about-content p {
  color: var(--secondary-600);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.about-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image img {
  width: 100%;
  height: auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow);
}

.stat-card-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-600);
  margin-bottom: 0.25rem;
}

.stat-card-label {
  font-size: 0.875rem;
  color: var(--secondary-500);
}

.certifications {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}

.certification-item {
  width: 80px;
  height: 80px;
  background: var(--white);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  font-weight: 700;
  color: var(--primary-600);
  font-size: 1.25rem;
}

/* ========================================
   Loading Spinner
   ======================================== */

.loading {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--white);
  border-radius: 50%;
  border-top-color: transparent;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ========================================
   Telecom Solutions Grid
   ======================================== */

.telecom-solutions-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .telecom-solutions-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }
}

@media (min-width: 1280px) {
  .telecom-solutions-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
  }
}

.telecom-solution-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.telecom-solution-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: all 0.3s ease;
}

.telecom-solution-card:hover .telecom-solution-icon {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.telecom-solution-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--white);
}

.telecom-solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-500), var(--primary-600));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.telecom-solution-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.telecom-solution-card:hover::before {
  transform: scaleX(1);
}

.telecom-solution-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.telecom-solution-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-600);
  opacity: 0.2;
}

.telecom-solution-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--badge-color, var(--primary-600));
  background: var(--badge-bg, var(--primary-100));
}

.telecom-solution-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary-900);
  margin-bottom: 1rem;
  line-height: 1.4;
}

.telecom-solution-desc {
  font-size: 0.9375rem;
  color: var(--secondary-600);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  flex: 1;
}

.telecom-features {
  margin-bottom: 2rem;
}

.telecom-features-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--secondary-800);
  margin-bottom: 1rem;
}

.telecom-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.telecom-feature-item:last-child {
  margin-bottom: 0;
}

.telecom-feature-icon {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: var(--radius-md);
  background: var(--icon-bg, rgba(59, 130, 246, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.125rem;
  color: var(--icon-color, var(--primary-500));
}

.telecom-feature-icon svg {
  width: 0.75rem;
  height: 0.75rem;
}

.telecom-feature-content {
  flex: 1;
}

.telecom-feature-content strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--secondary-800);
  margin-bottom: 0.25rem;
}

.telecom-feature-content span {
  font-size: 0.8125rem;
  color: var(--secondary-600);
  line-height: 1.5;
}

.telecom-solution-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  align-self: flex-start;
}

.telecom-solution-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.telecom-solution-btn svg {
  width: 0.75rem;
  height: 0.75rem;
  transition: transform 0.3s ease;
}

.telecom-solution-btn:hover svg {
  transform: translateX(4px);
}

/* ========================================
   Telecom Info Section
   ======================================== */

.telecom-info-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .telecom-info-section {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.telecom-info-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.telecom-info-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary-500), var(--primary-600));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s ease;
}

.telecom-info-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.telecom-info-card:hover::before {
  transform: scaleY(1);
}

.telecom-info-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.telecom-info-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--white);
}

.telecom-info-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary-900);
  margin-bottom: 0.75rem;
}

.telecom-info-desc {
  font-size: 0.9375rem;
  color: var(--secondary-600);
  line-height: 1.7;
}

@media (max-width: 767px) {
  .telecom-solution-card {
    padding: 1.5rem;
  }
  
  .telecom-solution-title {
    font-size: 1.125rem;
  }
  
  .telecom-solution-desc {
    font-size: 0.875rem;
  }
  
  .telecom-info-card {
    padding: 1.5rem;
  }
  
  .telecom-info-title {
    font-size: 1.125rem;
  }
  
  .telecom-info-desc {
    font-size: 0.875rem;
  }
}