:root {
  --color-primary: #26A9E0;
  --color-secondary: #FFFFFF;
  --color-login: #EA7C07;
  --color-background-light: #FFFFFF;
  --color-text-dark: #333333;
  --color-text-light: #ffffff;
}

.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-text-dark); /* Default text color for light backgrounds */
  background-color: var(--color-background-light); /* Default background */
}

.page-about__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 10px; /* Small top padding, body handles header offset */
  padding-bottom: 40px;
  background: linear-gradient(135deg, var(--color-primary), #1e88e5);
  color: var(--color-text-light);
  text-align: center;
}

.page-about__hero-image-container {
  width: 100%;
  max-width: 1920px;
  margin-bottom: 20px;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 8px;
}

.page-about__hero-content {
  max-width: 900px;
  padding: 0 20px;
}

.page-about__main-title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 15px;
  color: var(--color-text-light);
}

.page-about__description {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  margin-bottom: 30px;
  color: var(--color-text-light);
}

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.3s ease, color 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary {
  background-color: var(--color-login);
  color: var(--color-text-light);
  border: 2px solid var(--color-login);
  margin: 0 10px;
}

.page-about__btn-primary:hover {
  background-color: #d16b06;
  border-color: #d16b06;
}

.page-about__btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  margin: 0 10px;
}

.page-about__btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-secondary);
}

.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  box-sizing: border-box;
}

.page-about__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 30px;
  color: var(--color-primary);
}

.page-about__light-bg {
  background-color: var(--color-background-light);
  color: var(--color-text-dark);
}

.page-about__dark-bg {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.page-about__dark-bg .page-about__section-title,
.page-about__dark-bg .page-about__sub-title,
.page-about__dark-bg .page-about__card-title,
.page-about__dark-bg .page-about__value-title,
.page-about__dark-bg .page-about__item-title {
  color: var(--color-text-light);
}

.page-about__introduction-section p {
  margin-bottom: 15px;
  text-align: justify;
}

.page-about__content-image {
  width: 100%;
  height: auto;
  display: block;
  margin: 30px auto;
  border-radius: 8px;
  object-fit: cover;
}

.page-about__history-mission-section .page-about__flex-wrapper {
  display: flex;
  gap: 30px;
  margin-bottom: 40px;
}

.page-about__history-mission-section .page-about__text-block {
  flex: 1;
}

.page-about__sub-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--color-primary);
}

.page-about__core-values-section .page-about__value-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.page-about__core-values-section .page-about__value-item {
  background-color: var(--color-secondary);
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  text-align: center;
}

.page-about__core-values-section .page-about__value-title {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-primary);
}

.page-about__why-choose-section .page-about__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.page-about__why-choose-section .page-about__feature-card {
  background-color: var(--color-secondary);
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  color: var(--color-text-dark);
}

.page-about__why-choose-section .page-about__feature-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 15px;
}

.page-about__why-choose-section .page-about__card-title {
  font-size: clamp(1.3rem, 2.2vw, 1.6rem);
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-primary);
}

.page-about__cta-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
  text-align: center;
}

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

.page-about__team-section .page-about__team-member {
  text-align: center;
  background-color: var(--color-secondary);
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  color: var(--color-text-dark);
}

.page-about__team-section .page-about__team-avatar {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 15px;
  border: 3px solid var(--color-primary);
}

.page-about__team-section .page-about__member-name {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 5px;
}

.page-about__team-section .page-about__member-role {
  font-style: italic;
  color: #666;
  margin-bottom: 10px;
}

.page-about__safety-responsibility-section .page-about__flex-wrapper {
  display: flex;
  gap: 30px;
  margin-bottom: 40px;
}

.page-about__safety-responsibility-section .page-about__text-block {
  flex: 1;
}

.page-about__future-section .page-about__future-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 30px;
}

.page-about__future-section .page-about__future-item {
  background-color: var(--color-secondary);
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  color: var(--color-text-dark);
}

.page-about__future-section .page-about__item-title {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-primary);
}

.page-about__faq-section {
  padding-bottom: 60px;
}

.page-about__faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.page-about__faq-item {
  background-color: var(--color-secondary);
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  color: var(--color-text-dark);
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--color-primary);
  background-color: #f8f8f8;
  border-bottom: 1px solid #eee;
  list-style: none; /* For <details> summary */
}

.page-about__faq-question::-webkit-details-marker {
  display: none; /* For <details> summary */
}

.page-about__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  transition: transform 0.3s ease;
}

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

.page-about__faq-answer {
  padding: 15px 25px 20px;
  font-size: 1rem;
  color: #555;
}

.page-about__faq-answer p {
  margin-bottom: 0;
}

.page-about__faq-answer a {
  color: var(--color-primary);
  text-decoration: underline;
}

.page-about__contact-cta-section .page-about__cta-wrapper {
  padding: 40px 20px;
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border-radius: 10px;
  text-align: center;
}

.page-about__contact-cta-section .page-about__section-title {
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.page-about__contact-cta-section p {
  margin-bottom: 30px;
  font-size: 1.1rem;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-about__history-mission-section .page-about__flex-wrapper,
  .page-about__safety-responsibility-section .page-about__flex-wrapper {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .page-about {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-about__hero-section {
    padding-bottom: 30px;
  }

  .page-about__main-title {
    font-size: 2.2rem;
  }

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

  .page-about__btn-primary,
  .page-about__btn-secondary {
    width: 100% !important;
    margin: 10px 0 !important;
    padding: 12px 15px !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-about__cta-wrapper {
    flex-direction: column;
    gap: 10px;
    padding-left: 15px;
    padding-right: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-about__container,
  .page-about__introduction-section,
  .page-about__history-mission-section,
  .page-about__core-values-section,
  .page-about__why-choose-section,
  .page-about__team-section,
  .page-about__safety-responsibility-section,
  .page-about__future-section,
  .page-about__faq-section,
  .page-about__contact-cta-section {
    padding: 20px 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-about__section-title {
    font-size: 1.8rem;
  }

  .page-about__sub-title {
    font-size: 1.4rem;
  }

  .page-about__core-values-section .page-about__value-list,
  .page-about__why-choose-section .page-about__grid,
  .page-about__team-section .page-about__team-grid,
  .page-about__future-section .page-about__future-list {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
    box-sizing: border-box !important;
  }

  .page-about__video-section {
    padding-top: 10px !important; /* body already handles --header-offset */
    padding-left: 15px;
    padding-right: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-about__video-container,
  .page-about__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-about video,
  .page-about__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

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

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