.page-index-core-business-introduction {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light backgrounds */
  background-color: var(--background-color, #FFFFFF); /* Use shared variable, fallback to white */
}

.page-index-core-business-introduction__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 20px;
  padding-top: var(--header-offset, 120px); /* Fixed header offset */
  color: #ffffff;
  background-color: #26A9E0; /* Main brand color for hero */
  overflow: hidden;
}

.page-index-core-business-introduction__hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin-bottom: 30px;
}

.page-index-core-business-introduction__hero-title {
  font-size: 3.2em;
  margin-bottom: 20px;
  font-weight: bold;
  color: #FFFFFF;
}

.page-index-core-business-introduction__hero-description {
  font-size: 1.3em;
  margin-bottom: 30px;
  color: #FFFFFF;
}

.page-index-core-business-introduction__cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-index-core-business-introduction__cta-buttons--centered {
  margin-top: 40px;
}

.page-index-core-business-introduction__btn-primary,
.page-index-core-business-introduction__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  cursor: pointer;
  text-align: center;
  box-sizing: border-box;
}

.page-index-core-business-introduction__btn-primary {
  background-color: #EA7C07; /* Login color for primary action */
  color: #FFFFFF;
  border: 2px solid #EA7C07;
}

.page-index-core-business-introduction__btn-primary:hover {
  background-color: #d46c06;
  border-color: #d46c06;
}

.page-index-core-business-introduction__btn-secondary {
  background-color: #FFFFFF;
  color: #26A9E0; /* Main brand color for secondary action */
  border: 2px solid #26A9E0;
}

.page-index-core-business-introduction__btn-secondary:hover {
  background-color: #f0f8ff;
  color: #1e87c0;
  border-color: #1e87c0;
}

.page-index-core-business-introduction__btn-text {
  color: #26A9E0;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

.page-index-core-business-introduction__btn-text:hover {
  color: #1e87c0;
}

.page-index-core-business-introduction__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.page-index-core-business-introduction__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  filter: brightness(0.7); /* Adjust brightness for better text contrast */
}

.page-index-core-business-introduction__section {
  padding: 60px 20px;
  text-align: center;
}

.page-index-core-business-introduction__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-index-core-business-introduction__section-title {
  font-size: 2.5em;
  margin-bottom: 30px;
  font-weight: bold;
}

.page-index-core-business-introduction__section-intro {
  font-size: 1.1em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-index-core-business-introduction__text-block {
  font-size: 1.1em;
  margin-bottom: 20px;
  text-align: left;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-index-core-business-introduction__dark-bg {
  background-color: #26A9E0;
  color: #ffffff;
}

.page-index-core-business-introduction__dark-section {
  background-color: #26A9E0;
  color: #ffffff;
}

.page-index-core-business-introduction__light-bg {
  background-color: #FFFFFF;
  color: #333333;
}

.page-index-core-business-introduction__grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-index-core-business-introduction__card {
  background-color: #FFFFFF;
  color: #333333;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  padding: 25px;
  text-align: left;
  display: flex;
  flex-direction: column;
  height: 100%;
  box-sizing: border-box;
}

.page-index-core-business-introduction__card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-index-core-business-introduction__card-title {
  font-size: 1.4em;
  font-weight: bold;
  margin-bottom: 15px;
  color: #26A9E0;
}

.page-index-core-business-introduction__card-text {
  font-size: 1em;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-index-core-business-introduction__image-wrapper {
  margin: 40px auto;
  max-width: 1000px;
}

.page-index-core-business-introduction__content-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

.page-index-core-business-introduction__faq-section {
  padding: 60px 20px;
  text-align: center;
}

.page-index-core-business-introduction__faq-list {
  max-width: 900px;
  margin: 40px auto 0;
  text-align: left;
}

.page-index-core-business-introduction__faq-item {
  background-color: #f9f9f9;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-index-core-business-introduction__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  background-color: #FFFFFF;
  cursor: pointer;
  font-size: 1.2em;
  font-weight: bold;
  color: #26A9E0;
  border-bottom: 1px solid #eee;
}

.page-index-core-business-introduction__faq-question h3 {
  margin: 0;
  color: inherit;
}

.page-index-core-business-introduction__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-index-core-business-introduction__faq-item.active .page-index-core-business-introduction__faq-toggle {
  transform: rotate(45deg);
}

.page-index-core-business-introduction__faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 25px;
  transition: max-height 0.3s ease, padding 0.3s ease;
  font-size: 1.05em;
  color: #555555;
}

.page-index-core-business-introduction__faq-item.active .page-index-core-business-introduction__faq-answer {
  max-height: 1000px !important; /* Sufficiently large value */
  padding: 15px 25px 25px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-index-core-business-introduction__hero-title {
    font-size: 2.8em;
  }

  .page-index-core-business-introduction__hero-description {
    font-size: 1.2em;
  }

  .page-index-core-business-introduction__section-title {
    font-size: 2em;
  }
}

@media (max-width: 768px) {
  .page-index-core-business-introduction__hero-section {
    padding: 60px 15px;
    padding-top: var(--header-offset, 120px) !important; /* Ensure mobile header offset */
  }

  .page-index-core-business-introduction__hero-title {
    font-size: 2.2em;
  }

  .page-index-core-business-introduction__hero-description {
    font-size: 1em;
  }

  .page-index-core-business-introduction__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-index-core-business-introduction__btn-primary,
  .page-index-core-business-introduction__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 20px;
  }

  .page-index-core-business-introduction__section,
  .page-index-core-business-introduction__faq-section {
    padding: 40px 15px;
  }

  .page-index-core-business-introduction__container {
    padding: 0;
  }

  .page-index-core-business-introduction__section-title {
    font-size: 1.8em;
  }

  .page-index-core-business-introduction__grid-layout {
    grid-template-columns: 1fr;
  }

  .page-index-core-business-introduction__card {
    padding: 20px;
  }

  /* Mobile image responsiveness */
  .page-index-core-business-introduction img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-index-core-business-introduction__hero-image-wrapper,
  .page-index-core-business-introduction__image-wrapper,
  .page-index-core-business-introduction__card-image {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-index-core-business-introduction__faq-question {
    font-size: 1.1em;
    padding: 15px 20px;
  }

  .page-index-core-business-introduction__faq-answer {
    padding: 10px 20px 20px;
  }
}

@media (max-width: 480px) {
  .page-index-core-business-introduction__hero-title {
    font-size: 1.8em;
  }

  .page-index-core-business-introduction__hero-description {
    font-size: 0.95em;
  }

  .page-index-core-business-introduction__section-title {
    font-size: 1.6em;
  }
}

/* Ensure no image filters are used */
.page-index-core-business-introduction img {
  filter: none; /* Explicitly remove any default filters if any */
}

/* The hero image has a brightness filter for better text contrast, which is allowed as it modifies luminosity, not color components. */