.page-about {
  color: var(--text-main-color, #F2FFF6); /* Default text color for the page, adapting to body background */
  background-color: var(--bg-color, #08160F);
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-about__section {
  padding: 60px 0;
  text-align: center;
}

.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0;
  background-color: var(--bg-color, #08160F);
  overflow: hidden;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 600px; /* Limit height for hero image */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  min-height: 400px; /* Ensure minimum height */
}

.page-about__hero-content {
  position: relative;
  z-index: 10;
  padding: 40px 20px;
  max-width: 900px;
  text-align: center;
  color: var(--text-main-color, #F2FFF6);
  background-color: var(--card-bg-color, #11271B);
  border-radius: 8px;
  margin-top: -80px; /* Overlap slightly with image for visual effect, but not text on image */
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.page-about__main-title {
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--gold-color, #F2C14E);
  margin-bottom: 20px;
}

.page-about__description {
  font-size: 1.1em;
  color: var(--text-secondary-color, #A7D9B8);
  margin-bottom: 30px;
}

.page-about__cta-button {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.2s ease;
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #FFFFFF;
  border: none;
  cursor: pointer;
  font-size: 1em;
}

.page-about__cta-button:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.page-about__cta-button--small {
  padding: 10px 20px;
  font-size: 0.9em;
  border-radius: 20px;
}

.page-about__cta-button--large {
  padding: 16px 35px;
  font-size: 1.1em;
  border-radius: 30px;
}

.page-about__section-title {
  font-size: 2.2em;
  color: var(--text-main-color, #F2FFF6);
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 15px;
}

.page-about__section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--glow-color, #57E38D);
  border-radius: 2px;
}

.page-about__text-block {
  font-size: 1em;
  color: var(--text-secondary-color, #A7D9B8);
  margin-bottom: 20px;
  text-align: left;
}

.page-about__overview-section {
  background-color: var(--bg-color, #08160F);
}

.page-about__history-section,
.page-about__security-section,
.page-about__social-responsibility-section {
  background-color: var(--card-bg-color, #11271B);
  color: var(--text-main-color, #F2FFF6);
}

.page-about__reverse-layout {
  display: flex;
  align-items: center;
  gap: 40px;
  text-align: left;
}

.page-about__content-column {
  flex: 1;
}

.page-about__image-column {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-about__image {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  min-width: 200px; /* Minimum size requirement */
  min-height: 200px;
}

.page-about__values-section {
  background-color: var(--bg-color, #08160F);
}

.page-about__value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__value-card {
  background-color: var(--card-bg-color, #11271B);
  border: 1px solid var(--border-color, #2E7A4E);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.page-about__value-card:hover {
  transform: translateY(-5px);
}

.page-about__value-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  object-fit: contain;
  min-width: 200px; /* Minimum size for content images, not icons */
  min-height: 200px;
  width: 200px; /* Set specific size for these icon-like images */
  height: 200px;
}

.page-about__value-title {
  font-size: 1.5em;
  color: var(--text-main-color, #F2FFF6);
  margin-bottom: 10px;
}

.page-about__value-description {
  font-size: 0.95em;
  color: var(--text-secondary-color, #A7D9B8);
}

.page-about__products-section {
  background-color: var(--bg-color, #08160F);
}

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

.page-about__product-card {
  background-color: var(--card-bg-color, #11271B);
  border: 1px solid var(--border-color, #2E7A4E);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: left;
  transition: transform 0.3s ease;
}

.page-about__product-card:hover {
  transform: translateY(-5px);
}

.page-about__product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  min-width: 200px; /* Minimum size requirement */
  min-height: 200px;
}

.page-about__product-card h3 {
  padding: 15px 20px 0;
}

.page-about__product-card h3 a {
  font-size: 1.3em;
  color: var(--text-main-color, #F2FFF6);
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-about__product-card h3 a:hover {
  color: var(--glow-color, #57E38D);
}

.page-about__product-description {
  padding: 0 20px 20px;
  font-size: 0.9em;
  color: var(--text-secondary-color, #A7D9B8);
}

.page-about__cta-group {
  margin-top: 40px;
}

.page-about__support-section,
.page-about__future-section,
.page-about__faq-section,
.page-about__cta-final-section {
  background-color: var(--bg-color, #08160F);
}

.page-about__faq-list {
  margin-top: 40px;
  text-align: left;
}

.page-about__faq-item {
  background-color: var(--card-bg-color, #11271B);
  border: 1px solid var(--border-color, #2E7A4E);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--text-main-color, #F2FFF6);
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  font-weight: bold;
  font-size: 1.1em;
  color: var(--text-main-color, #F2FFF6);
  background-color: var(--card-bg-color, #11271B);
  border-bottom: 1px solid var(--divider-color, #1E3A2A);
  list-style: none;
}

.page-about__faq-question::-webkit-details-marker {
  display: none;
}

.page-about__faq-item[open] .page-about__faq-question {
  border-bottom: 1px solid var(--glow-color, #57E38D);
}

.page-about__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
  color: var(--glow-color, #57E38D);
}

.page-about__faq-item[open] .page-about__faq-toggle {
  transform: rotate(45deg);
}

.page-about__faq-answer {
  padding: 15px 25px 20px;
  font-size: 1em;
  color: var(--text-secondary-color, #A7D9B8);
}

.page-about__cta-final-section {
  padding-bottom: 80px;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .page-about__hero-content {
    margin-top: -60px;
    padding: 30px 20px;
  }

  .page-about__section-title {
    font-size: 2em;
  }

  .page-about__reverse-layout {
    flex-direction: column;
  }

  .page-about__image-column {
    margin-top: 30px;
  }
}

@media (max-width: 768px) {
  .page-about__hero-content {
    margin-top: -40px;
    padding: 25px 15px;
  }

  .page-about__main-title {
    font-size: 1.8em;
  }

  .page-about__description {
    font-size: 1em;
  }

  .page-about__cta-button {
    padding: 12px 25px;
    font-size: 0.9em;
  }

  .page-about__section {
    padding: 40px 0;
  }

  .page-about__section-title {
    font-size: 1.7em;
    margin-bottom: 30px;
  }

  .page-about__text-block {
    font-size: 0.95em;
  }

  .page-about__value-grid,
  .page-about__product-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-about__value-card,
  .page-about__product-card {
    padding: 20px;
  }

  .page-about__value-icon {
    width: 150px; /* Adjust size for mobile if needed, but maintain min 200px for actual images */
    height: 150px;
  }

  .page-about__product-image {
    height: 180px;
  }

  .page-about__product-card h3 a {
    font-size: 1.2em;
  }

  .page-about__product-description {
    font-size: 0.85em;
  }

  .page-about__faq-question {
    padding: 15px 20px;
    font-size: 1em;
  }

  .page-about__faq-answer {
    padding: 10px 20px 15px;
  }

  .page-about__container,
  .page-about__hero-content,
  .page-about__image-column,
  .page-about__content-column,
  .page-about__value-card,
  .page-about__product-card,
  .page-about__cta-button,
  .page-about__cta-button--small,
  .page-about__cta-button--large,
  .page-about__cta-group {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about__hero-section .page-about__container {
    padding-left: 0;
    padding-right: 0;
  }

  .page-about__cta-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
  }

  .page-about__image {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
    min-width: 200px !important;
    min-height: 200px !important;
  }

  .page-about__value-icon {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
    width: 200px !important; /* Ensure the fixed size is maintained or scaled down correctly */
    height: 200px !important;
    margin-left: auto;
    margin-right: auto;
  }

  .page-about__product-image {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
    min-width: 200px !important;
    min-height: 200px !important;
  }

  /* Ensure buttons adapt to mobile width */
  .page-about__cta-button,
  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about a[class*="button"],
  .page-about a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about__cta-buttons,
  .page-about__button-group,
  .page-about__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }

  .page-about__video-section {
    padding-top: 10px !important; /* body đã xử lý --header-offset, không dùng lại ở đây */
  }
}

@media (max-width: 480px) {
  .page-about__main-title {
    font-size: 1.5em;
  }

  .page-about__section-title {
    font-size: 1.5em;
  }

  .page-about__hero-content {
    margin-top: -30px;
    padding: 20px 10px;
  }
}

/* Custom Colors */
.page-about__section-title::after {
  background: var(--glow-color, #57E38D);
}

.page-about__value-card {
  background-color: var(--card-bg-color, #11271B);
  border-color: var(--border-color, #2E7A4E);
}

.page-about__value-title {
  color: var(--text-main-color, #F2FFF6);
}

.page-about__value-description {
  color: var(--text-secondary-color, #A7D9B8);
}

.page-about__product-card {
  background-color: var(--card-bg-color, #11271B);
  border-color: var(--border-color, #2E7A4E);
}

.page-about__product-card h3 a {
  color: var(--text-main-color, #F2FFF6);
}

.page-about__product-card h3 a:hover {
  color: var(--glow-color, #57E38D);
}

.page-about__product-description {
  color: var(--text-secondary-color, #A7D9B8);
}

.page-about__faq-item {
  background-color: var(--card-bg-color, #11271B);
  border-color: var(--border-color, #2E7A4E);
}

.page-about__faq-question {
  color: var(--text-main-color, #F2FFF6);
  background-color: var(--card-bg-color, #11271B);
  border-bottom-color: var(--divider-color, #1E3A2A);
}

.page-about__faq-item[open] .page-about__faq-question {
  border-bottom-color: var(--glow-color, #57E38D);
}

.page-about__faq-toggle {
  color: var(--glow-color, #57E38D);
}

.page-about__faq-answer {
  color: var(--text-secondary-color, #A7D9B8);
}

.page-about__hero-content {
  background-color: var(--card-bg-color, #11271B);
}

.page-about__main-title {
  color: var(--gold-color, #F2C14E);
}

.page-about__description {
  color: var(--text-secondary-color, #A7D9B8);
}

.page-about__cta-button {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #FFFFFF;
}

.page-about__section-title {
  color: var(--text-main-color, #F2FFF6);
}

.page-about__text-block {
  color: var(--text-secondary-color, #A7D9B8);
}

.page-about__history-section .page-about__section-title,
.page-about__security-section .page-about__section-title,
.page-about__social-responsibility-section .page-about__section-title {
  color: var(--text-main-color, #F2FFF6);
}

.page-about__history-section .page-about__text-block,
.page-about__security-section .page-about__text-block,
.page-about__social-responsibility-section .page-about__text-block {
  color: var(--text-secondary-color, #A7D9B8);
}