.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #FFF1E8; /* Text Main */
  background-color: #140C0C; /* Background */
}

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

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

.page-about__dark-section {
  background-color: #140C0C; /* Background */
  color: #FFF1E8; /* Text Main */
}

.page-about__section-title {
  font-size: clamp(28px, 4vw, 42px);
  color: #F3C54D; /* Gold */
  margin-bottom: 30px;
  font-weight: bold;
}

.page-about__sub-title {
  font-size: clamp(22px, 3vw, 30px);
  color: #F3C54D; /* Gold */
  margin-top: 40px;
  margin-bottom: 20px;
  font-weight: 600;
}

.page-about__text-block {
  font-size: 18px;
  margin-bottom: 20px;
  line-height: 1.8;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__text-center {
  text-align: center;
}

/* Hero Section */
.page-about__hero-section {
  position: relative;
  padding: 10px 0 60px; /* Small top padding, relies on body padding-top from shared */
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 600px;
}

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

.page-about__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.page-about__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 20px;
  text-align: center;
}

.page-about__main-title {
  font-size: clamp(38px, 5vw, 60px); /* H1 font size with clamp */
  color: #FFF1E8; /* Text Main */
  font-weight: bold;
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-about__intro-description {
  font-size: 20px;
  color: #FFF1E8; /* Text Main */
  margin-bottom: 40px;
  line-height: 1.7;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 18px;
  transition: all 0.3s ease;
  min-width: 180px;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #FFB04A 0%, #D86A14 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(255, 176, 74, 0.3);
}

.page-about__btn-primary:hover {
  background: linear-gradient(180deg, #E59F3F 0%, #C35D12 100%);
  transform: translateY(-2px);
}

.page-about__btn-secondary {
  background: transparent;
  color: #F3C54D; /* Gold */
  border: 2px solid #F3C54D; /* Gold */
}

.page-about__btn-secondary:hover {
  background: rgba(243, 197, 77, 0.1);
  transform: translateY(-2px);
}

.page-about__btn-link {
  color: #F3C54D; /* Gold */
  text-decoration: none;
  font-weight: 600;
  margin-top: 15px;
  display: inline-block;
  transition: color 0.3s ease;
}

.page-about__btn-link:hover {
  color: #FFB04A;
  text-decoration: underline;
}

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

.page-about__card {
  background-color: #2A1212; /* Card BG */
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  color: #FFF1E8;
}

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

.page-about__card-title {
  font-size: 24px;
  color: #F3C54D; /* Gold */
  margin-bottom: 15px;
  font-weight: bold;
}

.page-about__card-text {
  font-size: 16px;
  line-height: 1.7;
  flex-grow: 1;
}

.page-about__values-list {
  list-style: none;
  padding: 0;
  margin: 40px auto 0;
  max-width: 800px;
  text-align: left;
}

.page-about__list-item {
  background-color: #2A1212; /* Card BG */
  border-left: 5px solid #F3C54D; /* Gold */
  padding: 15px 20px;
  margin-bottom: 10px;
  border-radius: 5px;
  font-size: 18px;
  color: #FFF1E8;
}

.page-about__list-item strong {
  color: #FFB04A;
}

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

.page-about__feature-card {
  background-color: #2A1212; /* Card BG */
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #FFF1E8;
  min-height: 400px; /* Ensure cards have enough height for content */
}

.page-about__feature-icon {
  width: 150px;
  height: 150px;
  object-fit: contain;
  margin-bottom: 20px;
}

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

.page-about__team-member {
  background-color: #2A1212; /* Card BG */
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  color: #FFF1E8;
}

.page-about__team-photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 20px;
  border: 4px solid #F3C54D; /* Gold */
}

.page-about__member-name {
  font-size: 22px;
  color: #FFB04A;
  margin-bottom: 10px;
  font-weight: bold;
}

.page-about__member-role {
  font-size: 16px;
  color: #FFF1E8;
  line-height: 1.6;
}

/* Social Responsibility Section */
.page-about__content-block {
  text-align: left;
  padding: 20px;
}

.page-about__image-full-width {
  width: 100%;
  height: auto;
  border-radius: 10px;
  margin-top: 20px;
}

.page-about__margin-top {
  margin-top: 40px;
}

/* FAQ Section */
.page-about__faq-list {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

details.page-about__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid #6A1E1E; /* Border */
  overflow: hidden;
  background: #2A1212; /* Card BG */
  color: #FFF1E8;
}

details.page-about__faq-item summary.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}

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

details.page-about__faq-item summary.page-about__faq-question:hover {
  background: #7E0D0D; /* Deep Red for hover */
}

.page-about__faq-qtext {
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #F3C54D; /* Gold */
}

.page-about__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: #FFB04A; /* Button color for toggle */
  flex-shrink: 0;
  margin-left: 20px;
  width: 32px;
  text-align: center;
}

details.page-about__faq-item .page-about__faq-answer {
  padding: 0 25px 25px;
  background: #140C0C; /* Background */
  border-radius: 0 0 8px 8px;
  color: #FFF1E8;
}

details.page-about__faq-item .page-about__faq-answer p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
}

/* Final CTA Section */
.page-about__cta-final {
  padding: 80px 0;
  background-color: #7E0D0D; /* Deep Red */
  color: #FFF1E8;
}

.page-about__cta-final .page-about__section-title {
  color: #FFF1E8; /* Text Main */
}

.page-about__cta-final .page-about__text-block {
  color: #FFF1E8;
}

/* General image responsiveness */
.page-about img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
  .page-about__container {
    padding: 15px;
  }
  .page-about__section {
    padding: 40px 0;
  }
  .page-about__main-title {
    font-size: clamp(32px, 4.5vw, 50px);
  }
  .page-about__intro-description {
    font-size: 18px;
  }
  .page-about__section-title {
    font-size: clamp(24px, 3.5vw, 36px);
  }
  .page-about__sub-title {
    font-size: clamp(20px, 2.5vw, 28px);
  }
}

@media (max-width: 768px) {
  /* HERO 主图区域 */
  .page-about__hero-section {
    padding: 10px 0 40px; /* Top padding small, relies on body padding */
    min-height: 450px;
  }
  .page-about__hero-image {
    object-fit: contain !important; /* Prevent cropping on mobile */
    aspect-ratio: unset !important;
  }
  .page-about__hero-content {
    padding: 15px;
  }
  .page-about__main-title {
    font-size: clamp(28px, 8vw, 38px) !important;
    line-height: 1.3;
  }
  .page-about__intro-description {
    font-size: 16px;
    margin-bottom: 30px;
  }
  
  /* 按钮与按钮容器 */
  .page-about__cta-buttons {
    flex-direction: column;
    gap: 15px;
    max-width: 100% !important;
    width: 100% !important;
    padding: 0 15px;
    box-sizing: border-box !important;
  }
  .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: 12px 20px;
    font-size: 16px;
  }

  /* 通用图片与容器 */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
  }
  .page-about__section,
  .page-about__card,
  .page-about__container,
  .page-about__content-block {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: hidden;
  }

  /* 长文 SEO 区 */
  .page-about__text-block,
  .page-about__values-list {
    font-size: 16px;
    line-height: 1.7;
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
    text-align: left;
  }
  .page-about__list-item {
    font-size: 16px;
  }

  /* Grid Layouts */
  .page-about__grid-two-columns,
  .page-about__features-grid,
  .page-about__team-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-about__card,
  .page-about__feature-card,
  .page-about__team-member {
    padding: 20px;
  }
  .page-about__card-image {
    height: 200px;
  }
  .page-about__card-title {
    font-size: 20px;
  }
  .page-about__feature-icon {
    width: 120px;
    height: 120px;
  }
  .page-about__team-photo {
    width: 150px;
    height: 150px;
  }

  /* FAQ */
  details.page-about__faq-item summary.page-about__faq-question {
    padding: 15px 20px;
  }
  .page-about__faq-qtext {
    font-size: 16px;
  }
  .page-about__faq-toggle {
    font-size: 24px;
    width: 28px;
    margin-left: 15px;
  }
  details.page-about__faq-item .page-about__faq-answer {
    padding: 0 20px 20px;
  }
  details.page-about__faq-item .page-about__faq-answer p {
    font-size: 15px;
  }
}