.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-color);
}

.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, body handles header offset */
  background-color: var(--background); /* Use custom background color */
  color: var(--text-main);
  text-align: center;
}

.page-about__hero-image-container {
  width: 100%;
  max-width: 1200px;
  margin-bottom: 30px;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-about__hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.page-about__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text-main);
  letter-spacing: -0.03em;
}

.page-about__hero-description {
  font-size: 1.15rem;
  margin-bottom: 30px;
  color: var(--text-secondary);
}

.page-about__hero-cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-about__btn-primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  box-shadow: 0 0 15px var(--glow);
}

.page-about__btn-secondary {
  background-color: transparent;
  color: var(--text-main);
  border: 2px solid var(--border);
}

.page-about__btn-secondary:hover {
  background-color: var(--border);
  color: #ffffff;
  box-shadow: 0 0 15px var(--glow);
}

.page-about__mission-vision-section,
.page-about__why-choose-us-section,
.page-about__technology-innovation-section,
.page-about__social-responsibility-section,
.page-about__future-section,
.page-about__faq-section {
  padding: 80px 20px;
}

.page-about__mission-vision-section,
.page-about__technology-innovation-section,
.page-about__future-section {
  background-color: var(--card-b-g);
  color: var(--text-main);
}

.page-about__why-choose-us-section,
.page-about__social-responsibility-section,
.page-about__faq-section {
  background-color: var(--background);
  color: var(--text-main);
}

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

.page-about__section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: bold;
  text-align: center;
  margin-bottom: 25px;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.page-about__section-description {
  font-size: 1.05rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px;
  color: var(--text-secondary);
}

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

.page-about__card {
  background-color: var(--background);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  text-align: left;
  border: 1px solid var(--border);
  color: var(--text-main);
}

.page-about__card-title {
  font-size: 1.6rem;
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--text-main);
}

.page-about__card-text {
  font-size: 1rem;
  color: var(--text-secondary);
}

.page-about__image-full-width {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 50px;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-about__feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__feature-card {
  background-color: var(--card-b-g);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  text-align: left;
  border: 1px solid var(--border);
  color: var(--text-main);
}

.page-about__feature-title {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--text-main);
}

.page-about__feature-text {
  font-size: 1rem;
  color: var(--text-secondary);
}

.page-about__image-centered {
  width: 100%;
  max-width: 900px;
  height: auto;
  display: block;
  margin: 50px auto 0;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-about__content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  margin-top: 40px;
}

.page-about__text-block {
  text-align: left;
}

.page-about__sub-title {
  font-size: 1.6rem;
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--text-main);
}

.page-about__paragraph {
  font-size: 1rem;
  margin-bottom: 20px;
  color: var(--text-secondary);
}

.page-about__image-block {
  text-align: center;
}

.page-about__image-responsive {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-about__faq-list {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__faq-item {
  background-color: var(--card-b-g);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--text-main);
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  font-weight: bold;
  font-size: 1.15rem;
  color: var(--text-main);
  list-style: none;
}

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

.page-about__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  margin-left: 15px;
  color: var(--glow);
}

.page-about__faq-answer {
  padding: 0 25px 20px;
  font-size: 1rem;
  color: var(--text-secondary);
}

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

/* Custom colors from requirements */
:root {
  --primary-color: #11A84E;
  --secondary-color: #22C768;
  --button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --card-b-g: #11271B;
  --background: #08160F;
  --text-main: #F2FFF6;
  --text-secondary: #A7D9B8;
  --border: #2E7A4E;
  --glow: #57E38D;
  --gold: #F2C14E;
  --divider: #1E3A2A;
  --deep-green: #0A4B2C;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-about__hero-section {
    padding: 40px 15px;
  }

  .page-about__hero-image-container {
    margin-bottom: 20px;
  }

  .page-about__main-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }

  .page-about__hero-description {
    font-size: 1rem;
  }

  .page-about__mission-vision-section,
  .page-about__why-choose-us-section,
  .page-about__technology-innovation-section,
  .page-about__social-responsibility-section,
  .page-about__future-section,
  .page-about__faq-section {
    padding: 60px 15px;
  }

  .page-about__section-title {
    font-size: clamp(1.6rem, 4vw, 2.5rem);
  }

  .page-about__content-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .page-about__image-block {
    order: -1; /* Image appears above text on smaller screens */
  }
}

@media (max-width: 768px) {
  .page-about__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }

  .page-about__hero-description {
    font-size: 0.95rem;
  }

  .page-about__hero-cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-about__btn-primary,
  .page-about__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
  }

  .page-about__section-title {
    font-size: clamp(1.5rem, 5vw, 2.2rem);
  }

  .page-about__section-description {
    font-size: 0.9rem;
  }

  .page-about__card-title,
  .page-about__feature-title,
  .page-about__sub-title {
    font-size: 1.3rem;
  }

  .page-about__card-text,
  .page-about__feature-text,
  .page-about__paragraph {
    font-size: 0.9rem;
  }

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

  .page-about__faq-answer {
    padding: 0 20px 15px;
  }

  /* Mandatory mobile image/video/button responsive styles */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

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

  .page-about__section,
  .page-about__card,
  .page-about__container,
  .page-about__hero-cta-buttons,
  .page-about__button-group,
  .page-about__btn-container,
  .page-about__video-section,
  .page-about__video-container,
  .page-about__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important; /* Ensure no overflow */
  }

  .page-about__hero-cta-buttons,
  .page-about__button-group,
  .page-about__btn-container {
    flex-wrap: wrap !important;
    gap: 10px;
  }

  .page-about__video-section {
    padding-top: 10px !important; /* body already handles --header-offset */
  }
}