:root {
  --twilight-blue: #1e3a5f;
  --dark-blue: #2c4f7c;
  --accent-yellow: #ffd700;
  --accent-white: #ffffff;
  --text-light: #ffffff;
  --text-gray: #e0e0e0;
  --hover-blue: #3d5a7e;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f5f5f5;
}

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

.top-header {
  background-color: #000;
  color: var(--text-light);
  padding: 10px 0;
  font-size: 14px;
}

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

.contact-info {
  display: flex;
  gap: 30px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.3s ease;
}

.contact-item:hover {
  color: var(--accent-yellow);
}

.contact-item i {
  font-size: 14px;
}

.social-links {
  display: flex;
  gap: 15px;
}

.social-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  border: 1px solid var(--text-light);
  border-radius: 50%;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 14px;
}

.social-icon:hover {
  background-color: var(--accent-yellow);
  border-color: var(--accent-yellow);
  color: #000;
  transform: translateY(-2px);
}

.main-header {
  background-color: var(--twilight-blue);
  padding: 15px 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

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

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

.logo-text h1 {
  color: var(--text-light);
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 2px;
  letter-spacing: 2px;
}

.logo-text p {
  color: var(--text-gray);
  font-size: 12px;
  font-weight: 400;
  max-width: 300px;
}

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

.nav-menu {
  display: flex;
  list-style: none;
  gap: 5px;
  align-items: center;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--text-light);
  text-decoration: none;
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.3s ease;
  border-radius: 4px;
  white-space: nowrap;
}

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

.nav-link i {
  font-size: 10px;
  transition: transform 0.3s ease;
}

.nav-item-dropdown {
  position: relative;
}

.nav-item-dropdown:hover .nav-link i {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--dark-blue);
  list-style: none;
  min-width: 200px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  border-radius: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  margin-top: 5px;
}

.nav-item-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li {
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.dropdown-menu li:last-child {
  border-bottom: none;
}

.dropdown-menu a {
  display: block;
  padding: 12px 20px;
  color: var(--text-light);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.3s ease;
}

.dropdown-menu a:hover {
  background-color: var(--hover-blue);
  color: var(--accent-yellow);
  padding-left: 25px;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
  transition: color 0.3s ease;
  z-index: 10001;
  position: relative;
}

.mobile-menu-toggle:hover {
  color: var(--accent-yellow);
}

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 25, 41, 0.95);
  backdrop-filter: blur(10px);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  width: 90%;
  max-width: 500px;
  max-height: 80vh;
  background: white;
  border-radius: 20px;
  padding: 40px 30px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  overflow-y: auto;
  opacity: 0;
  transition: all 0.4s ease;
}

.mobile-menu-overlay.active .mobile-menu-popup {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 3px solid var(--accent-yellow);
}

.mobile-menu-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--twilight-blue);
  margin: 0;
}

.mobile-menu-close {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--twilight-blue);
  color: white;
  font-size: 20px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.mobile-menu-close:hover {
  background: var(--accent-yellow);
  color: var(--twilight-blue);
  transform: rotate(90deg);
}

.mobile-nav-menu {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-nav-item {
  margin-bottom: 8px;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  color: var(--twilight-blue);
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  background: #f8f9fa;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: var(--twilight-blue);
  color: white;
  transform: translateX(5px);
}

.mobile-nav-link i {
  font-size: 12px;
  transition: transform 0.3s ease;
}

.mobile-dropdown {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding-left: 15px;
  margin-top: 8px;
}

.mobile-dropdown.active {
  max-height: 300px;
}

.mobile-dropdown li {
  margin-bottom: 6px;
}

.mobile-dropdown a {
  display: block;
  padding: 12px 18px;
  color: #666;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  background: white;
  border-radius: 8px;
  border-left: 3px solid var(--accent-yellow);
  transition: all 0.3s ease;
}

.mobile-dropdown a:hover {
  background: var(--accent-yellow);
  color: var(--twilight-blue);
  padding-left: 25px;
}

.mobile-nav-item.has-dropdown .mobile-nav-link.active i {
  transform: rotate(180deg);
}

#app {
  min-height: calc(100vh - 120px);
  padding: 0;
}

.hero-section {
  position: relative;
  width: 100%;
  height: calc(100vh - 120px);
  min-height: 500px;
  overflow: hidden;
}

.hero-video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(10, 25, 41, 0.85) 0%, rgba(10, 25, 41, 0.4) 50%, rgba(10, 25, 41, 0.2) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.welcome-message {
  max-width: 600px;
  background: rgba(10, 25, 41, 0.75);
  backdrop-filter: blur(10px);
  padding: 50px;
  border-radius: 8px;
  border-left: 5px solid var(--accent-yellow);
  animation: fadeInSlide 1s ease-out, fadeOutMessage 1s ease-out 9s forwards;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.welcome-message h2 {
  color: var(--text-light);
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 15px;
  line-height: 1.2;
}

.welcome-message p {
  color: var(--accent-yellow);
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 10px;
  line-height: 1.5;
}

.welcome-message .welcome-subtext {
  color: var(--text-gray);
  font-size: 16px;
  font-weight: 400;
  margin-top: 20px;
  line-height: 1.6;
}

@keyframes fadeInSlide {
  0% {
    opacity: 0;
    transform: translateX(-50px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeOutMessage {
  0% {
    opacity: 1;
    backdrop-filter: blur(10px);
  }
  100% {
    opacity: 0;
    backdrop-filter: blur(0px);
    visibility: hidden;
  }
}

@media (max-width: 968px) {
  .top-header .container {
    flex-direction: column;
    gap: 15px;
  }

  .contact-info {
    flex-direction: column;
    gap: 10px;
    align-items: center;
  }

  .main-header .container {
    flex-wrap: wrap;
  }

  .logo {
    flex: 1;
    min-width: 250px;
  }

  .logo-img {
    height: 50px;
  }

  .logo-text h1 {
    font-size: 24px;
  }

  .logo-text p {
    font-size: 11px;
  }

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

  .nav-menu {
    display: none;
  }

  .hero-section {
    height: calc(100vh - 180px);
    min-height: 400px;
  }

  .welcome-message {
    padding: 30px;
    max-width: 90%;
  }

  .welcome-message h2 {
    font-size: 32px;
  }

  .welcome-message p {
    font-size: 16px;
  }

  .welcome-message .welcome-subtext {
    font-size: 14px;
  }
}

@media (max-width: 576px) {
  .social-links {
    gap: 10px;
  }

  .social-icon {
    width: 28px;
    height: 28px;
    font-size: 12px;
  }

  .contact-item {
    font-size: 13px;
  }

  .welcome-message {
    padding: 20px;
  }

  .welcome-message h2 {
    font-size: 24px;
  }

  .welcome-message p {
    font-size: 14px;
  }

  .welcome-message .welcome-subtext {
    font-size: 13px;
  }
}

.about-section {
  padding: 80px 20px;
  background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
  position: relative;
}

.about-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--twilight-blue) 0%, var(--accent-yellow) 50%, var(--accent-white) 100%);
}

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

.section-intro {
  text-align: center;
  margin-bottom: 60px;
  animation: fadeInUp 1s ease-out;
}

.section-title {
  font-size: 42px;
  font-weight: 700;
  color: var(--twilight-blue);
  margin-bottom: 20px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-yellow), var(--accent-white));
  border-radius: 2px;
}

.section-description {
  font-size: 18px;
  line-height: 1.8;
  color: #555;
  max-width: 900px;
  margin: 30px auto 0;
}

.info-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.info-card {
  background: white;
  padding: 40px 30px;
  border-radius: 12px;
  border: 3px solid transparent;
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  animation: fadeInUp 1s ease-out backwards;
}

.info-card:nth-child(1) {
  animation-delay: 0.2s;
}

.info-card:nth-child(2) {
  animation-delay: 0.4s;
}

.info-card:nth-child(3) {
  animation-delay: 0.6s;
}

.info-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--accent-yellow) 0%, var(--accent-white) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}

.info-card::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, var(--accent-yellow), var(--accent-white));
  border-radius: 12px;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.info-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 40px rgba(255, 215, 0, 0.3);
  border-color: var(--accent-yellow);
}

.info-card:hover::after {
  opacity: 1;
}

.info-card:hover .card-icon {
  background: linear-gradient(135deg, var(--accent-yellow), var(--accent-white));
  color: white;
  transform: scale(1.1) rotate(5deg);
}

.card-icon {
  width: 70px;
  height: 70px;
  background: var(--twilight-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 25px;
  transition: all 0.4s ease;
  position: relative;
  z-index: 1;
}

.card-icon i {
  font-size: 32px;
  color: var(--accent-yellow);
  transition: color 0.4s ease;
}

.info-card:hover .card-icon i {
  color: white;
}

.info-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--twilight-blue);
  margin-bottom: 15px;
  text-align: center;
  position: relative;
  z-index: 1;
  transition: color 0.4s ease;
}

.info-card:hover h3 {
  color: var(--twilight-blue);
}

.info-card p {
  font-size: 16px;
  line-height: 1.7;
  color: #666;
  text-align: center;
  position: relative;
  z-index: 1;
  transition: color 0.4s ease;
}

.info-card:hover p {
  color: #555;
}

@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 968px) {
  .about-section {
    padding: 60px 20px;
  }

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

  .section-description {
    font-size: 16px;
  }

  .info-cards {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .info-card {
    padding: 30px 25px;
  }
}

@media (max-width: 576px) {
  .about-section {
    padding: 40px 15px;
  }

  .section-title {
    font-size: 28px;
  }

  .section-description {
    font-size: 15px;
  }

  .info-card {
    padding: 25px 20px;
  }

  .card-icon {
    width: 60px;
    height: 60px;
  }

  .card-icon i {
    font-size: 28px;
  }

  .info-card h3 {
    font-size: 20px;
  }

  .info-card p {
    font-size: 15px;
  }
}

.leadership-section {
  padding: 80px 20px;
  background: var(--dark-blue);
  position: relative;
  overflow: hidden;
}

.leadership-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-yellow) 0%, var(--accent-white) 100%);
}

.leadership-section .section-title {
  color: var(--text-light);
}

.leadership-section .section-description {
  color: var(--text-gray);
}

.leaders-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.leader-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.4s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  position: relative;
  text-decoration: none;
  display: block;
  border: 3px solid transparent;
  animation: fadeInUp 1s ease-out backwards;
}

.leader-card:nth-child(1) {
  animation-delay: 0.1s;
}

.leader-card:nth-child(2) {
  animation-delay: 0.2s;
}

.leader-card:nth-child(3) {
  animation-delay: 0.3s;
}

.leader-card:nth-child(4) {
  animation-delay: 0.4s;
}

.leader-card:nth-child(5) {
  animation-delay: 0.5s;
}

.leader-card:nth-child(6) {
  animation-delay: 0.6s;
}

.leader-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 40px rgba(255, 215, 0, 0.4);
  border-color: var(--accent-yellow);
}

.leader-image {
  position: relative;
  width: 100%;
  height: 320px;
  overflow: hidden;
}

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

.leader-card:hover .leader-image img {
  transform: scale(1.1);
}

.leader-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to top, rgba(10, 25, 41, 0.9) 0%, transparent 100%);
  transition: height 0.4s ease;
}

.leader-card:hover .leader-overlay {
  height: 100%;
  background: linear-gradient(to top, rgba(255, 215, 0, 0.7) 0%, rgba(10, 25, 41, 0.6) 100%);
}

.leader-info {
  padding: 25px 20px;
  background: white;
  position: relative;
  z-index: 2;
}

.leader-info h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--twilight-blue);
  margin-bottom: 8px;
  transition: color 0.3s ease;
}

.leader-card:hover .leader-info h3 {
  color: var(--accent-yellow);
}

.leader-title {
  font-size: 14px;
  color: #666;
  line-height: 1.5;
  font-weight: 500;
  margin: 0;
}

.leader-card::after {
  content: '\f0a9';
  font-family: 'Font Awesome 5 Free';
  font-weight: 900;
  position: absolute;
  bottom: 25px;
  right: 20px;
  color: var(--accent-yellow);
  font-size: 20px;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.3s ease;
}

.leader-card:hover::after {
  opacity: 1;
  transform: translateX(0);
}

@media (max-width: 968px) {
  .leadership-section {
    padding: 60px 20px;
  }

  .leaders-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
  }

  .leader-image {
    height: 280px;
  }

  .leader-info {
    padding: 20px 15px;
  }

  .leader-info h3 {
    font-size: 18px;
  }

  .leader-title {
    font-size: 13px;
  }
}

@media (max-width: 576px) {
  .leadership-section {
    padding: 40px 15px;
  }

  .leaders-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .leader-image {
    height: 300px;
  }

  .leader-info {
    padding: 20px 15px;
  }

  .leader-info h3 {
    font-size: 18px;
  }

  .leader-title {
    font-size: 13px;
  }
}

.sino-program-section {
  padding: 80px 20px;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  position: relative;
}

.sino-program-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #dc143c 0%, var(--accent-yellow) 50%, #dc143c 100%);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.project-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transition: all 0.4s ease;
  text-decoration: none;
  display: block;
  background: white;
  height: 400px;
  animation: fadeInUp 1s ease-out backwards;
}

.project-card:nth-child(1) {
  animation-delay: 0.1s;
}

.project-card:nth-child(2) {
  animation-delay: 0.2s;
}

.project-card:nth-child(3) {
  animation-delay: 0.3s;
}

.project-card:nth-child(4) {
  animation-delay: 0.4s;
}

.project-card:nth-child(5) {
  animation-delay: 0.5s;
}

.project-card:nth-child(6) {
  animation-delay: 0.6s;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 45px rgba(255, 215, 0, 0.3);
}

.project-image {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.project-card:hover .project-image img {
  transform: scale(1.1);
}

.project-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 25px;
  background: linear-gradient(to top, rgba(10, 25, 41, 0.95) 0%, rgba(10, 25, 41, 0.7) 70%, transparent 100%);
  z-index: 2;
  transition: all 0.4s ease;
}

.project-content h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 8px;
  transition: all 0.3s ease;
}

.project-category {
  display: inline-block;
  padding: 5px 15px;
  background: var(--accent-yellow);
  color: var(--twilight-blue);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(10, 25, 41, 0.97) 0%, rgba(220, 20, 60, 0.92) 100%);
  z-index: 3;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px;
}

.project-card:hover .project-overlay {
  opacity: 1;
  visibility: visible;
}

.overlay-content {
  text-align: center;
  transform: translateY(20px);
  transition: transform 0.4s ease 0.1s;
}

.project-card:hover .overlay-content {
  transform: translateY(0);
}

.overlay-content h3 {
  font-size: 26px;
  font-weight: 700;
  color: var(--accent-yellow);
  margin-bottom: 20px;
  line-height: 1.3;
}

.overlay-content p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-light);
  margin-bottom: 25px;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 30px;
  background: var(--accent-yellow);
  color: var(--twilight-blue);
  border-radius: 25px;
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
}

.read-more:hover {
  background: var(--accent-white);
  color: white;
  gap: 15px;
}

.read-more i {
  transition: transform 0.3s ease;
}

.read-more:hover i {
  transform: translateX(5px);
}

.project-card.active .project-overlay {
  opacity: 1;
  visibility: visible;
}

.project-card.active .overlay-content {
  transform: translateY(0);
}

@media (max-width: 968px) {
  .sino-program-section {
    padding: 60px 20px;
  }

  .projects-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
  }

  .project-card {
    height: 350px;
  }

  .project-content h3 {
    font-size: 20px;
  }

  .overlay-content h3 {
    font-size: 22px;
  }

  .overlay-content p {
    font-size: 15px;
  }
}

@media (max-width: 576px) {
  .sino-program-section {
    padding: 40px 15px;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .project-card {
    height: 320px;
  }

  .project-content {
    padding: 20px;
  }

  .project-content h3 {
    font-size: 18px;
  }

  .project-category {
    font-size: 11px;
    padding: 4px 12px;
  }

  .project-overlay {
    padding: 20px;
  }

  .overlay-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
  }

  .overlay-content p {
    font-size: 14px;
    margin-bottom: 20px;
  }

  .read-more {
    padding: 10px 25px;
    font-size: 13px;
  }
}

.mining-energy-section {
  padding: 80px 20px;
  background: var(--dark-blue);
  position: relative;
}

.mining-energy-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-white) 0%, var(--accent-yellow) 100%);
}

.mining-energy-section .section-title {
  color: var(--text-light);
}

.mining-energy-section .section-description {
  color: var(--text-gray);
}

.mining-energy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 50px;
}

.map-container,
.resources-container {
  background: white;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.subsection-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--twilight-blue);
  margin-bottom: 25px;
  text-align: center;
}

.map-wrapper {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.rdc-map {
  width: 100%;
  height: auto;
}

.province {
  fill: #a4ced2;
  stroke: #FFF;
  stroke-width: 1px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.province:hover {
  fill: var(--accent-yellow);
  transform: scale(1.02);
  filter: drop-shadow(0 0 8px rgba(255, 215, 0, 0.6));
}

.resources-container {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.mineral-resources {
  flex: 1;
}

.mineral-circles {
  display: flex;
  justify-content: space-around;
  align-items: center;
  gap: 20px;
  margin-top: 20px;
}

.mineral-item {
  text-align: center;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.mineral-item:hover {
  transform: translateY(-10px);
}

.mineral-circle {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--accent-yellow);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
  transition: all 0.3s ease;
  position: relative;
}

.mineral-item:hover .mineral-circle {
  border-color: var(--accent-white);
  box-shadow: 0 8px 25px rgba(76, 175, 80, 0.5);
  transform: scale(1.05);
}

.mineral-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mineral-name {
  margin-top: 10px;
  font-size: 16px;
  font-weight: 600;
  color: var(--twilight-blue);
}

.energy-showcase {
  flex: 1;
}

.energy-image {
  position: relative;
  width: 100%;
  height: 250px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

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

.energy-image:hover img {
  transform: scale(1.1);
}

.energy-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(10, 25, 41, 0.95) 0%, transparent 100%);
  padding: 20px;
  color: white;
}

.energy-overlay h4 {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent-yellow);
  margin-bottom: 8px;
}

.energy-overlay p {
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}

.province-popup,
.mineral-popup {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.province-popup.active,
.mineral-popup.active {
  opacity: 1;
  visibility: visible;
}

.popup-content {
  background: white;
  border-radius: 12px;
  padding: 40px;
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.province-popup.active .popup-content,
.mineral-popup.active .popup-content {
  transform: scale(1);
}

.popup-close {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 35px;
  height: 35px;
  border: none;
  background: var(--twilight-blue);
  color: white;
  font-size: 24px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.popup-close:hover {
  background: var(--accent-yellow);
  color: var(--twilight-blue);
  transform: rotate(90deg);
}

.popup-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--twilight-blue);
  margin-bottom: 25px;
  padding-right: 40px;
}

.popup-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.info-item {
  display: flex;
  gap: 15px;
  padding: 15px;
  background: #f8f9fa;
  border-radius: 8px;
  border-left: 4px solid var(--accent-yellow);
}

.info-item i {
  font-size: 24px;
  color: var(--accent-yellow);
  margin-top: 5px;
}

.info-item h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--twilight-blue);
  margin-bottom: 5px;
}

.info-item p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 968px) {
  .mining-energy-section {
    padding: 60px 20px;
  }

  .mining-energy-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .mineral-circles {
    flex-direction: column;
    gap: 30px;
  }

  .energy-image {
    height: 200px;
  }
}

@media (max-width: 576px) {
  .mining-energy-section {
    padding: 40px 15px;
  }

  .map-container,
  .resources-container {
    padding: 20px;
  }

  .subsection-title {
    font-size: 18px;
  }

  .mineral-circle {
    width: 100px;
    height: 100px;
  }

  .mineral-name {
    font-size: 14px;
  }

  .popup-content {
    padding: 25px;
  }

  .popup-title {
    font-size: 22px;
  }

  .info-item {
    flex-direction: column;
    gap: 10px;
  }
}

.sectors-section {
  padding: 80px 20px;
  background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
  position: relative;
}

.sectors-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-white) 0%, var(--accent-yellow) 50%, var(--twilight-blue) 100%);
}

.sectors-row {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 20px;
  margin-top: 50px;
  flex-wrap: nowrap;
}

.sector-card {
  flex: 1;
  background: white;
  padding: 40px 20px;
  border-radius: 12px;
  text-align: center;
  transition: all 0.4s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  border: 3px solid transparent;
  position: relative;
  overflow: hidden;
  min-width: 180px;
  animation: fadeInUp 1s ease-out backwards;
}

.sector-card:nth-child(1) {
  animation-delay: 0.1s;
}

.sector-card:nth-child(2) {
  animation-delay: 0.2s;
}

.sector-card:nth-child(3) {
  animation-delay: 0.3s;
}

.sector-card:nth-child(4) {
  animation-delay: 0.4s;
}

.sector-card:nth-child(5) {
  animation-delay: 0.5s;
}

.sector-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--twilight-blue) 0%, var(--accent-yellow) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}

.sector-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 40px rgba(255, 215, 0, 0.3);
  border-color: var(--accent-yellow);
}

.sector-card:hover::before {
  opacity: 0.95;
}

.sector-icon {
  width: 80px;
  height: 80px;
  background: var(--twilight-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: all 0.4s ease;
  position: relative;
  z-index: 1;
}

.sector-icon i {
  font-size: 36px;
  color: var(--accent-yellow);
  transition: all 0.4s ease;
}

.sector-card:hover .sector-icon {
  background: white;
  transform: scale(1.15) rotate(360deg);
}

.sector-card:hover .sector-icon i {
  color: var(--twilight-blue);
}

.sector-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--twilight-blue);
  margin: 0;
  position: relative;
  z-index: 1;
  transition: color 0.4s ease;
  line-height: 1.4;
}

.sector-card:hover h3 {
  color: white;
}

@media (max-width: 1200px) {
  .sectors-row {
    gap: 15px;
  }

  .sector-card {
    padding: 30px 15px;
    min-width: 150px;
  }

  .sector-icon {
    width: 70px;
    height: 70px;
  }

  .sector-icon i {
    font-size: 30px;
  }

  .sector-card h3 {
    font-size: 16px;
  }
}

@media (max-width: 968px) {
  .sectors-section {
    padding: 60px 20px;
  }

  .sectors-row {
    flex-wrap: wrap;
    gap: 20px;
  }

  .sector-card {
    flex: 1 1 calc(50% - 10px);
    min-width: 200px;
    padding: 35px 20px;
  }

  .sector-icon {
    width: 75px;
    height: 75px;
  }

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

  .sector-card h3 {
    font-size: 17px;
  }
}

@media (max-width: 576px) {
  .sectors-section {
    padding: 40px 15px;
  }

  .sectors-row {
    flex-direction: column;
    gap: 15px;
  }

  .sector-card {
    flex: 1 1 100%;
    padding: 30px 20px;
  }

  .sector-icon {
    width: 70px;
    height: 70px;
  }

  .sector-icon i {
    font-size: 30px;
  }

  .sector-card h3 {
    font-size: 16px;
  }
}


.testimonials-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--twilight-blue) 0%, var(--dark-blue) 100%);
}

.testimonials-slider {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  overflow: hidden;
}

.testimonial-track {
  display: flex;
  transition: transform 0.5s ease-in-out;
}

.testimonial-card {
  min-width: 100%;
  padding: 40px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 15px;
  border: 1px solid rgba(255, 215, 0, 0.2);
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

.testimonial-card.active {
  opacity: 1;
}

.testimonial-icon {
  color: var(--accent-yellow);
  font-size: 40px;
  margin-bottom: 20px;
}

.testimonial-text {
  color: var(--text-gray);
  font-size: 18px;
  line-height: 1.8;
  margin-bottom: 30px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 15px;
}

.testimonial-author img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent-yellow);
}

.author-info h4 {
  color: var(--text-light);
  font-size: 16px;
  margin-bottom: 5px;
}

.author-info p {
  color: var(--accent-yellow);
  font-size: 14px;
}

.testimonial-indicators {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 30px;
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.indicator.active {
  background: var(--accent-yellow);
  width: 30px;
  border-radius: 6px;
}

.testimonial-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 215, 0, 0.2);
  border: 2px solid var(--accent-yellow);
  color: var(--accent-yellow);
  width: 45px;
  height: 45px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 10;
}

.testimonial-nav:hover {
  background: var(--accent-yellow);
  color: var(--twilight-blue);
}

.testimonial-nav.prev {
  left: -60px;
}

.testimonial-nav.next {
  right: -60px;
}

@media (max-width: 768px) {
  .testimonials-section {
    padding: 60px 0;
  }

  .testimonial-card {
    padding: 30px 20px;
  }

  .testimonial-text {
    font-size: 16px;
  }

  .testimonial-nav {
    width: 40px;
    height: 40px;
  }

  .testimonial-nav.prev {
    left: 10px;
  }

  .testimonial-nav.next {
    right: 10px;
  }

  .testimonial-author img {
    width: 50px;
    height: 50px;
  }

  .author-info h4 {
    font-size: 14px;
  }

  .author-info p {
    font-size: 12px;
  }
}


.contact-section {
  padding: 80px 0;
  background-color: #f9f9f9;
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 50px;
}

.contact-form-wrapper {
  background: white;
  padding: 40px;
  border-radius: 15px;
  box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
}

.contact-form .form-group {
  margin-bottom: 25px;
}

.contact-form label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--twilight-blue);
  font-size: 14px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 15px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 15px;
  transition: all 0.3s ease;
  font-family: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent-yellow);
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

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

.submit-btn {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, var(--twilight-blue), var(--accent-yellow));
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.3s ease;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(255, 215, 0, 0.3);
}

.social-stats-wrapper {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.social-title {
  font-size: 28px;
  color: var(--twilight-blue);
  margin-bottom: 10px;
  font-weight: 700;
}

.social-stat-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: white;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.social-stat-card:hover {
  transform: translateX(5px);
  box-shadow: 0 5px 25px rgba(0, 0, 0, 0.12);
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: white;
}

.social-icon.facebook {
  background: linear-gradient(135deg, #1877f2, #0c5bbd);
}

.social-icon.twitter {
  background: linear-gradient(135deg, #000000, #333333);
}

.social-icon.linkedin {
  background: linear-gradient(135deg, #0077b5, #005885);
}

.social-icon.youtube {
  background: linear-gradient(135deg, #ff0000, #cc0000);
}

.social-info {
  flex: 1;
}

.social-info h4 {
  font-size: 18px;
  color: var(--twilight-blue);
  margin-bottom: 5px;
  font-weight: 600;
}

.follower-count {
  font-size: 32px;
  font-weight: 700;
  color: var(--accent-yellow);
  margin: 0;
  line-height: 1;
}

.follower-label {
  font-size: 14px;
  color: #666;
}

@media (max-width: 968px) {
  .contact-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-form-wrapper {
    padding: 30px 20px;
  }

  .social-title {
    font-size: 24px;
  }

  .social-stat-card {
    padding: 20px;
  }

  .social-icon {
    width: 50px;
    height: 50px;
    font-size: 20px;
  }

  .social-info h4 {
    font-size: 16px;
  }

  .follower-count {
    font-size: 28px;
  }
}