.page-index {
  font-family: 'Arial', sans-serif;
  color: #E0E0E0;
  line-height: 1.6;
  background-color: #0F1A2D; /* Nền tối hơn chủ đạo */
}

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

.page-index-section-title {
  font-size: 2.5em;
  color: #FFD700; /* Màu vàng làm điểm nhấn */
  text-align: center;
  margin-bottom: 40px;
  padding-top: 40px;
  font-weight: bold;
}

.page-index-subtitle-text {
  font-size: 1.2em;
  color: #B0B0B0;
  text-align: center;
  margin-bottom: 50px;
}

.page-index-hero {
  position: relative;
  height: 600px; /* Chiều cao cố định cho hero section */
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  text-align: center;
}

.page-index-hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.page-index-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(26, 43, 76, 0.7), rgba(26, 43, 76, 0.9)); /* Overlay để làm nổi bật chữ */
  z-index: 2;
}

.page-index-hero-content {
  position: relative;
  z-index: 3;
  color: #FFFFFF;
  max-width: 900px;
  padding: 20px;
}

.page-index-hero-title {
  font-size: 3.8em;
  margin-bottom: 20px;
  line-height: 1.2;
  color: #FFD700;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-index-hero-subtitle {
  font-size: 1.5em;
  margin-bottom: 40px;
  color: #E0E0E0;
}

.page-index-hero-actions {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.page-index-btn {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
  font-size: 1.1em;
  text-align: center;
  cursor: pointer;
}

.page-index-btn-primary {
  background-color: #FFD700;
  color: #1A2B4C;
  border: 2px solid #FFD700;
}

.page-index-btn-primary:hover {
  background-color: #E0B500;
  color: #0F1A2D;
  transform: translateY(-2px);
}

.page-index-btn-secondary {
  background-color: transparent;
  color: #FFD700;
  border: 2px solid #FFD700;
}

.page-index-btn-secondary:hover {
  background-color: #FFD700;
  color: #1A2B4C;
  transform: translateY(-2px);
}

.page-index-btn-outline {
  background-color: transparent;
  color: #FFD700;
  border: 1px solid #FFD700;
  padding: 10px 20px;
  font-size: 1em;
  border-radius: 5px;
}

.page-index-btn-outline:hover {
  background-color: #FFD700;
  color: #1A2B4C;
}

.page-index-btn-small {
  padding: 8px 15px;
  font-size: 0.9em;
  border-radius: 5px;
  background-color: #FFD700;
  color: #1A2B4C;
  border: none;
}

.page-index-btn-small:hover {
  background-color: #E0B500;
}

.page-index-btn-large {
  padding: 18px 40px;
  font-size: 1.2em;
}

.page-index-about-us {
  padding: 80px 0;
  background-color: #1A2B4C;
}

.page-index-about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.page-index-about-text p {
  margin-bottom: 20px;
  font-size: 1.1em;
  color: #C0C0C0;
}

.page-index-about-text p strong {
  color: #FFD700;
}

.page-index-about-image {
  text-align: center;
}

.page-index-img-responsive {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.page-index-features {
  padding: 80px 0;
  background-color: #0F1A2D;
}

.page-index-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-index-feature-item {
  background-color: #1A2B4C;
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.page-index-feature-item:hover {
  transform: translateY(-10px);
}

.page-index-feature-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 5px rgba(255, 215, 0, 0.5));
}

.page-index-feature-title {
  font-size: 1.8em;
  color: #FFD700;
  margin-bottom: 15px;
}

.page-index-feature-item p {
  color: #B0B0B0;
  font-size: 1em;
  margin-bottom: 20px;
}

.page-index-link-more {
  color: #FFD700;
  text-decoration: none;
  font-weight: bold;
  display: inline-flex;
  align-items: center;
  transition: color 0.3s ease;
}

.page-index-link-more:hover {
  color: #E0B500;
}

.page-index-arrow {
  margin-left: 8px;
  transition: transform 0.3s ease;
}

.page-index-link-more:hover .page-index-arrow {
  transform: translateX(5px);
}

.page-index-trust-security {
  padding: 80px 0;
  background-color: #1A2B4C;
}

.page-index-trust-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  align-items: center;
}

.page-index-trust-image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.page-index-trust-text p {
  font-size: 1.1em;
  color: #C0C0C0;
  margin-bottom: 20px;
}

.page-index-trust-text p strong {
  color: #FFD700;
}

.page-index-detail-pages {
  padding: 80px 0;
  background-color: #0F1A2D;
}

.page-index-detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.page-index-detail-item {
  background-color: #1A2B4C;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.page-index-detail-title {
  font-size: 1.5em;
  margin-bottom: 15px;
  color: #FFD700;
}

.page-index-detail-title a {
  color: #FFD700;
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-index-detail-title a:hover {
  color: #E0B500;
}

.page-index-detail-description {
  font-size: 0.95em;
  color: #B0B0B0;
  margin-bottom: 20px;
  min-height: 80px; /* Đảm bảo chiều cao đồng đều */
}

.page-index-call-to-action {
  background: linear-gradient(135deg, #1A2B4C, #0F1A2D);
  padding: 100px 20px;
  text-align: center;
}

.page-index-cta-title {
  font-size: 3em;
  color: #FFD700;
  margin-bottom: 20px;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

.page-index-cta-subtitle {
  font-size: 1.4em;
  color: #E0E0E0;
  margin-bottom: 50px;
}

.page-index-deep-content {
  padding: 80px 0;
  background-color: #0F1A2D;
}

.page-index-deep-content h2, .page-index-deep-content h3 {
  color: #FFD700;
  margin-bottom: 25px;
  margin-top: 40px;
  text-align: left;
}

.page-index-deep-content h2 {
  font-size: 2.2em;
}

.page-index-deep-content h3 {
  font-size: 1.8em;
  border-bottom: 1px solid rgba(255, 215, 0, 0.3);
  padding-bottom: 10px;
}

.page-index-deep-content p {
  font-size: 1.1em;
  color: #C0C0C0;
  margin-bottom: 20px;
  text-align: justify;
}

.page-index-deep-content ul {
  list-style: none;
  padding: 0;
  margin-bottom: 20px;
}

.page-index-deep-content ul li {
  background-color: #1A2B4C;
  margin-bottom: 10px;
  padding: 15px 20px;
  border-left: 5px solid #FFD700;
  border-radius: 5px;
  color: #E0E0E0;
  font-size: 1.1em;
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .page-index-hero-title {
    font-size: 3em;
  }
  .page-index-hero-subtitle {
    font-size: 1.3em;
  }
  .page-index-about-grid, .page-index-trust-content {
    grid-template-columns: 1fr;
  }
  .page-index-about-image, .page-index-trust-image {
    order: -1; /* Image on top for mobile */
  }
  .page-index-section-title {
    font-size: 2em;
  }
  .page-index-cta-title {
    font-size: 2.5em;
  }
  .page-index-cta-subtitle {
    font-size: 1.2em;
  }
}

@media (max-width: 768px) {
  .page-index-hero {
    height: 500px;
  }
  .page-index-hero-title {
    font-size: 2.5em;
  }
  .page-index-hero-subtitle {
    font-size: 1.1em;
  }
  .page-index-hero-actions {
    flex-direction: column;
    gap: 15px;
  }
  .page-index-btn {
    width: 80%;
    margin: 0 auto;
  }
  .page-index-feature-grid {
    grid-template-columns: 1fr;
  }
  .page-index-detail-grid {
    grid-template-columns: 1fr;
  }
  .page-index-section-title {
    font-size: 1.8em;
  }
  .page-index-deep-content h2 {
    font-size: 2em;
  }
  .page-index-deep-content h3 {
    font-size: 1.5em;
  }
}

@media (max-width: 480px) {
  .page-index-hero {
    height: 400px;
  }
  .page-index-hero-title {
    font-size: 2em;
  }
  .page-index-hero-subtitle {
    font-size: 1em;
  }
  .page-index-btn {
    padding: 12px 20px;
    font-size: 1em;
    width: 90%;
  }
  .page-index-section-title {
    font-size: 1.5em;
  }
  .page-index-cta-title {
    font-size: 2em;
  }
  .page-index-cta-subtitle {
    font-size: 1em;
  }
}