.page-nh-ci-khc {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #E0E0E0; /* Light gray for general text */
  background-color: #0A192F; /* Primary dark blue background */
}

.page-nh-ci-khc__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-nh-ci-khc__hero {
  background: linear-gradient(135deg, #0A192F 0%, #1a3a60 100%); /* Dark blue gradient */
  color: #FFFFFF;
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 500px;
}

.page-nh-ci-khc__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.15;
  z-index: 0;
}

.page-nh-ci-khc__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-nh-ci-khc__hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.page-nh-ci-khc__hero-title {
  font-size: 3.5em;
  margin-bottom: 20px;
  color: #FFD700; /* Accent gold */
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
  line-height: 1.2;
}

.page-nh-ci-khc__hero-subtitle {
  font-size: 1.4em;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: #F0F0F0;
}

.page-nh-ci-khc__btn {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  margin: 10px;
  cursor: pointer;
  border: none;
}

.page-nh-ci-khc__btn--primary {
  background-color: #FFD700; /* Accent gold */
  color: #0A192F; /* Dark blue text */
}

.page-nh-ci-khc__btn--primary:hover {
  background-color: #e6c200;
  transform: translateY(-3px);
}

.page-nh-ci-khc__btn--secondary {
  background-color: #007bff; /* A neutral blue for action */
  color: #FFFFFF;
}

.page-nh-ci-khc__btn--secondary:hover {
  background-color: #0056b3;
  transform: translateY(-3px);
}

.page-nh-ci-khc__btn--tertiary {
  background-color: #4CAF50; /* A green for login */
  color: #FFFFFF;
}

.page-nh-ci-khc__btn--tertiary:hover {
  background-color: #45a049;
  transform: translateY(-3px);
}

.page-nh-ci-khc__introduction, 
.page-nh-ci-khc__comparison-factors, 
.page-nh-ci-khc__qq88-advantages, 
.page-nh-ci-khc__how-to-choose, 
.page-nh-ci-khc__cta {
  padding: 60px 0;
  background-color: #0A192F;
  color: #E0E0E0;
}

.page-nh-ci-khc__introduction {
  background-color: #11223F;
}

.page-nh-ci-khc__section-title {
  font-size: 2.5em;
  color: #FFD700; /* Accent gold */
  text-align: center;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 15px;
}

.page-nh-ci-khc__section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: #FFD700;
  border-radius: 2px;
}

.page-nh-ci-khc__paragraph {
  font-size: 1.1em;
  margin-bottom: 20px;
  text-align: justify;
  color: #E0E0E0;
}

.page-nh-ci-khc__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-nh-ci-khc__grid-item {
  background-color: #1A2E47; /* Slightly lighter dark blue */
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-nh-ci-khc__grid-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.page-nh-ci-khc__grid-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 5px #FFD700);
}

.page-nh-ci-khc__grid-title {
  font-size: 1.5em;
  color: #FFD700; /* Accent gold */
  margin-bottom: 15px;
}

.page-nh-ci-khc__grid-description {
  font-size: 1em;
  color: #CCCCCC;
}

.page-nh-ci-khc__flex-group {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  justify-content: center;
  margin-top: 40px;
}

.page-nh-ci-khc__advantage-item {
  background-color: #1A2E47;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  flex: 1 1 calc(50% - 30px);
  max-width: calc(50% - 15px);
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.page-nh-ci-khc__advantage-item:hover {
  transform: translateY(-10px);
  background-color: #2a405c; /* Slightly lighter on hover */
}

.page-nh-ci-khc__advantage-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 15px;
  filter: drop-shadow(0 0 3px #FFD700);
}

.page-nh-ci-khc__advantage-title {
  font-size: 1.4em;
  color: #FFD700;
  margin-bottom: 10px;
}

.page-nh-ci-khc__advantage-description {
  font-size: 1em;
  color: #CCCCCC;
  text-align: justify;
}

.page-nh-ci-khc__list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
}

.page-nh-ci-khc__list-item {
  background-color: #1A2E47;
  margin-bottom: 15px;
  padding: 20px 25px;
  border-left: 5px solid #FFD700;
  border-radius: 5px;
  font-size: 1.1em;
  color: #E0E0E0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.page-nh-ci-khc__list-item strong {
  color: #FFD700;
}

.page-nh-ci-khc__cta {
  text-align: center;
  background-color: #11223F;
  padding: 80px 0;
}

@media (max-width: 992px) {
  .page-nh-ci-khc__hero-title {
    font-size: 2.8em;
  }
  .page-nh-ci-khc__hero-subtitle {
    font-size: 1.2em;
  }
  .page-nh-ci-khc__section-title {
    font-size: 2em;
  }
  .page-nh-ci-khc__advantage-item {
    flex: 1 1 calc(100% - 30px);
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .page-nh-ci-khc__hero {
    padding: 80px 0;
    min-height: 400px;
  }
  .page-nh-ci-khc__hero-title {
    font-size: 2.2em;
  }
  .page-nh-ci-khc__hero-subtitle {
    font-size: 1em;
  }
  .page-nh-ci-khc__section-title {
    font-size: 1.8em;
  }
  .page-nh-ci-khc__grid {
    grid-template-columns: 1fr;
  }
  .page-nh-ci-khc__btn {
    padding: 12px 25px;
    font-size: 1em;
  }
  .page-nh-ci-khc__introduction, 
  .page-nh-ci-khc__comparison-factors, 
  .page-nh-ci-khc__qq88-advantages, 
  .page-nh-ci-khc__how-to-choose, 
  .page-nh-ci-khc__cta {
    padding: 40px 0;
  }
}

@media (max-width: 480px) {
  .page-nh-ci-khc__hero-title {
    font-size: 1.8em;
  }
  .page-nh-ci-khc__hero-subtitle {
    font-size: 0.9em;
  }
  .page-nh-ci-khc__btn {
    display: block;
    margin: 10px auto;
  }
  .page-nh-ci-khc__grid-item, .page-nh-ci-khc__advantage-item {
    padding: 20px;
  }
  .page-nh-ci-khc__grid-icon {
    width: 60px;
    height: 60px;
  }
  .page-nh-ci-khc__grid-title {
    font-size: 1.3em;
  }
  .page-nh-ci-khc__advantage-icon {
    width: 50px;
    height: 50px;
  }
  .page-nh-ci-khc__advantage-title {
    font-size: 1.2em;
  }
}