.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main, #FFF5E1); /* Default text color for dark background */
  background: var(--bg-color, #B71C1C); /* Custom background color */
}

.page-about__hero-section {
  position: relative;
  width: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 10px; /* Small top padding, assuming body handles --header-offset */
  padding-bottom: 40px;
  background: linear-gradient(180deg, #7A0E0E 0%, #B71C1C 100%);
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 600px; /* Limit hero image height */
  margin-bottom: 20px;
}

.page-about__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 0 20px;
}

.page-about__hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: bold;
  color: var(--text-main, #FFF5E1);
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-about__hero-description {
  font-size: 1.15rem;
  color: var(--text-main, #FFF5E1);
  margin-bottom: 30px;
}

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

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  color: #7A0E0E; /* Deep Red for text on gold button */
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-about__btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

.page-about__btn-secondary {
  background: transparent;
  color: var(--text-main, #FFF5E1);
  border: 2px solid var(--border-color, #F2B544);
}

.page-about__btn-secondary:hover {
  background: var(--border-color, #F2B544);
  color: #7A0E0E; /* Deep Red for text on gold hover */
}

.page-about__section {
  padding: 60px 0;
  background: var(--bg-color, #B71C1C);
}

.page-about__dark-section {
  background: var(--deep-red, #7A0E0E);
  color: var(--text-main, #FFF5E1);
}

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

.page-about__heading {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--gold, #F4D34D);
  text-align: center;
  margin-bottom: 40px;
  position: relative;
}

.page-about__heading::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--border-color, #F2B544);
  margin: 15px auto 0;
  border-radius: 2px;
}

.page-about__text {
  font-size: 1.1rem;
  color: var(--text-main, #FFF5E1);
  margin-bottom: 20px;
  line-height: 1.7;
  text-align: justify;
}

.page-about__text a {
  color: var(--border-color, #F2B544);
  text-decoration: underline;
  transition: color 0.3s ease;
}

.page-about__text a:hover {
  color: #FFD86A;
}

.page-about__sub-section {
  margin-top: 40px;
  padding: 30px;
  background: var(--card-bg, #D32F2F);
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color, #F2B544);
}

.page-about__sub-heading {
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--gold, #F4D34D);
  margin-bottom: 15px;
}

.page-about__list {
  list-style: none;
  padding-left: 0;
}

.page-about__list-item {
  font-size: 1.1rem;
  color: var(--text-main, #FFF5E1);
  margin-bottom: 10px;
  position: relative;
  padding-left: 30px;
}

.page-about__list-item::before {
  content: '★';
  color: var(--border-color, #F2B544);
  position: absolute;
  left: 0;
  font-size: 1.2em;
  line-height: 1;
}

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

.page-about__feature-card,
.page-about__team-member-card {
  background: var(--card-bg, #D32F2F);
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  padding: 30px;
  text-align: center;
  border: 1px solid var(--border-color, #F2B544);
}

.page-about__feature-image,
.page-about__team-member-image {
  width: 100%;
  max-width: 400px;
  height: 250px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  border: 2px solid var(--border-color, #F2B544);
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-about__team-member-image {
  border-radius: 50%;
  max-width: 200px;
  height: 200px;
}

.page-about__feature-title,
.page-about__team-member-name {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--gold, #F4D34D);
  margin-bottom: 10px;
}

.page-about__team-member-role {
  font-size: 1rem;
  color: var(--text-main, #FFF5E1);
  opacity: 0.8;
}

.page-about__feature-text {
  font-size: 1rem;
  color: var(--text-main, #FFF5E1);
  line-height: 1.6;
  text-align: justify;
}

.page-about__commitment-cta {
  margin-top: 40px;
}

.page-about__faq-section {
  background: var(--bg-color, #B71C1C);
}

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

.page-about__faq-item {
  background: var(--card-bg, #D32F2F);
  border: 1px solid var(--border-color, #F2B544);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--gold, #F4D34D);
  cursor: pointer;
  transition: background 0.3s ease;
  list-style: none; /* For <details> summary */
}

.page-about__faq-question::-webkit-details-marker {
  display: none; /* Hide default marker for Webkit */
}

.page-about__faq-question:hover {
  background: rgba(255, 255, 255, 0.05);
}

.page-about__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--border-color, #F2B544);
  margin-left: 15px;
}

.page-about__faq-item[open] .page-about__faq-toggle {
  content: '−';
}

.page-about__faq-answer {
  padding: 0 20px 20px;
  font-size: 1rem;
  color: var(--text-main, #FFF5E1);
  line-height: 1.6;
  opacity: 0.9;
}

.page-about__contact-cta-section {
  text-align: center;
  background: linear-gradient(180deg, #7A0E0E 0%, #B71C1C 100%);
}

.page-about__contact-cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 30px;
  flex-wrap: wrap;
}

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

/* General container responsiveness */
.page-about__section,
.page-about__container,
.page-about__sub-section,
.page-about__feature-card,
.page-about__team-member-card {
  width: 100%;
  box-sizing: border-box;
}

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

  /* HERO 主图区域 */
  .page-about__hero-section {
    padding-top: 10px !important;
    padding-bottom: 30px;
  }

  .page-about__hero-image {
    max-height: 300px;
    width: 100% !important;
    height: auto !important;
  }

  .page-about__hero-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }

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

  .page-about__hero-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }

  /* 按钮与按钮容器 */
  .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: 1rem;
  }

  .page-about__hero-buttons,
  .page-about__contact-cta-buttons {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-direction: column !important;
    gap: 15px;
  }

  /* 其他内容模块 */
  .page-about__section {
    padding: 40px 0;
  }

  .page-about__container {
    padding: 0 15px;
  }

  .page-about__heading {
    font-size: 2rem;
    margin-bottom: 30px;
  }

  .page-about__sub-heading {
    font-size: 1.5rem;
  }

  .page-about__text,
  .page-about__list-item,
  .page-about__feature-text,
  .page-about__team-member-role {
    font-size: 0.95rem;
  }

  .page-about__sub-section {
    margin-top: 30px;
    padding: 20px;
  }

  .page-about__features-grid,
  .page-about__team-members-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-about__feature-card,
  .page-about__team-member-card {
    padding: 20px;
  }

  .page-about__feature-image,
  .page-about__team-member-image {
    width: 100% !important;
    height: auto !important;
    max-width: none;
  }

  .page-about__team-member-image {
    border-radius: 50%;
    max-width: 150px;
    height: 150px;
  }

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

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

  /* 通用图片与容器 */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-about__section,
  .page-about__card,
  .page-about__container,
  .page-about__sub-section,
  .page-about__feature-card,
  .page-about__team-member-card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-about__hero-content {
    padding: 0 15px;
  }
}

/* @media (max-width: 1024px) styles for tablets - omitted as per prompt's focus on 768px, but would be here if needed */