.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main-color); /* Default text color for dark body background */
  background-color: var(--background-color); /* Inherit from shared.css */
}

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

.page-about__dark-section {
  background-color: var(--background-color);
  color: var(--text-main-color);
}

.page-about__light-bg {
  background-color: #ffffff;
  color: #333333;
}

.page-about__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 10px; /* Small top padding, assuming body handles --header-offset */
  padding-bottom: 60px;
  position: relative;
  overflow: hidden;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 70vh;
  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;
}

.page-about__hero-content {
  position: relative;
  z-index: 2;
  padding: 40px 20px;
  max-width: 900px;
  margin-top: -100px; /* Pull content up slightly over image */
  background: rgba(17, 17, 17, 0.85); /* Card BG with transparency */
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-color);
}

.page-about__main-title {
  font-size: 2.8em;
  font-weight: bold;
  color: var(--text-main-color);
  margin-bottom: 20px;
  line-height: 1.2;
  max-width: 90%;
  margin-left: auto;
  margin-right: auto;
}

.page-about__hero-description {
  font-size: 1.1em;
  color: var(--text-main-color);
  margin-bottom: 30px;
  max-width: 80%;
  margin-left: auto;
  margin-right: auto;
}

.page-about__cta-button {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-about__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(255, 211, 107, 0.4);
}

.page-about__btn-secondary {
  background: #ffffff;
  color: #F2C14E;
  border: 2px solid #F2C14E;
}

.page-about__btn-secondary:hover {
  background: #F2C14E;
  color: #ffffff;
}

.page-about__button-margin-top {
  margin-top: 30px;
}

.page-about__section-title {
  font-size: 2.2em;
  font-weight: bold;
  color: var(--text-main-color);
  margin-bottom: 40px;
  text-align: center;
  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: linear-gradient(90deg, #FFD86A 0%, #DDA11D 100%);
  border-radius: 2px;
}

.page-about__intro-section .page-about__section-title,
.page-about__values-section .page-about__section-title,
.page-about__team-section .page-about__section-title,
.page-about__faq-section .page-about__section-title {
  color: #333333;
}

.page-about__text-block {
  font-size: 1.05em;
  margin-bottom: 25px;
  line-height: 1.7;
  text-align: justify;
}

.page-about__intro-section .page-about__text-block {
  color: #333333;
}

.page-about__highlight {
  color: #F2C14E;
  font-weight: bold;
}

.page-about__image-text-block {
  display: flex;
  gap: 30px;
  margin-top: 40px;
  align-items: center;
}

.page-about__content-image {
  width: 50%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  object-fit: cover;
  min-width: 200px;
  min-height: 200px;
}

.page-about__image-caption {
  width: 50%;
  font-style: italic;
  color: #555555;
  font-size: 0.95em;
  line-height: 1.6;
}

.page-about__grid {
  display: grid;
  gap: 30px;
  margin-top: 30px;
}

.page-about__grid--2-col {
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
}

.page-about__grid--3-col {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.page-about__card {
  background: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  color: var(--text-main-color);
}

.page-about__card--dark-bg {
  background: var(--card-bg-color);
  color: var(--text-main-color);
}

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

.page-about__card-text {
  font-size: 1em;
  line-height: 1.7;
}

.page-about__value-card {
  background: #ffffff;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  color: #333333;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-about__value-card--full-width {
  grid-column: 1 / -1;
}

.page-about__value-icon {
  width: 100px;
  height: 100px;
  margin-bottom: 20px;
  object-fit: contain;
  min-width: 200px; /* Enforce min size for content images */
  min-height: 200px;
  max-width: 100%;
  height: auto;
}

.page-about__value-title {
  font-size: 1.6em;
  font-weight: bold;
  margin-bottom: 10px;
  color: #333333;
}

.page-about__value-text {
  font-size: 0.95em;
  line-height: 1.6;
  color: #555555;
}

.page-about__feature-block {
  background: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: var(--text-main-color);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

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

.page-about__feature-text {
  font-size: 1em;
  line-height: 1.7;
  margin-bottom: 20px;
}

.page-about__text-link {
  color: #F2C14E;
  text-decoration: underline;
}

.page-about__text-link:hover {
  color: #FFD36B;
}

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

.page-about__team-member {
  background: #ffffff;
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  color: #333333;
}

.page-about__team-photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 15px;
  border: 3px solid #F2C14E;
  min-width: 200px; /* Enforce min size for content images */
  min-height: 200px;
  max-width: 100%;
  height: auto;
}

.page-about__member-name {
  font-size: 1.4em;
  font-weight: bold;
  margin-bottom: 5px;
  color: #333333;
}

.page-about__member-role {
  font-size: 1em;
  color: #F2C14E;
  margin-bottom: 15px;
}

.page-about__member-description {
  font-size: 0.95em;
  line-height: 1.6;
  color: #555555;
}

.page-about__responsibility-section .page-about__text-block--light {
  color: var(--text-main-color);
}

.page-about__faq-list {
  margin-top: 30px;
}

.page-about__faq-item {
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: #333333;
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.1em;
  font-weight: bold;
  cursor: pointer;
  background-color: #f9f9f9;
  color: #333333;
  list-style: none;
  user-select: none;
}

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

.page-about__faq-question:hover {
  background-color: #f0f0f0;
}

.page-about__faq-qtext {
  flex-grow: 1;
}

.page-about__faq-toggle {
  font-size: 1.5em;
  margin-left: 15px;
  color: #F2C14E;
}

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

.page-about__faq-answer {
  padding: 15px 25px 20px;
  font-size: 1em;
  line-height: 1.7;
  color: #555555;
  background-color: #ffffff;
  border-top: 1px solid #e0e0e0;
}

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

/* Mobile Responsive Styles */
@media (max-width: 1024px) {
  .page-about__main-title {
    font-size: 2.5em;
  }
  .page-about__section-title {
    font-size: 2em;
  }
  .page-about__grid--2-col {
    grid-template-columns: 1fr;
  }
  .page-about__hero-content {
    margin-top: -80px;
  }
  .page-about__image-text-block {
    flex-direction: column;
    text-align: center;
  }
  .page-about__content-image,
  .page-about__image-caption {
    width: 100%;
  }
  .page-about__value-card--full-width {
    grid-column: auto;
  }
  .page-about__team-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  /* HERO 主图区域 */
  .page-about__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px !important;
  }
  .page-about__hero-image-wrapper {
    max-height: 50vh;
  }
  .page-about__hero-image {
    min-height: 250px;
  }
  .page-about__hero-content {
    margin-top: -60px !important;
    padding: 25px 15px !important;
    max-width: 95% !important;
  }
  .page-about__main-title {
    font-size: clamp(1.8em, 7vw, 2.2em) !important; /* Use clamp for H1 */
    margin-bottom: 15px !important;
    max-width: 100% !important;
  }
  .page-about__hero-description {
    font-size: 1em !important;
    margin-bottom: 25px !important;
    max-width: 100% !important;
  }

  /* 其他内容模块 */
  .page-about__container {
    padding: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-about__section-title {
    font-size: 1.8em !important;
    margin-bottom: 30px !important;
  }
  .page-about__text-block {
    font-size: 0.95em !important;
    line-height: 1.6 !important;
  }
  .page-about__image-text-block {
    flex-direction: column !important;
    gap: 20px !important;
  }
  .page-about__content-image,
  .page-about__image-caption {
    width: 100% !important;
  }
  .page-about__grid--2-col,
  .page-about__grid--3-col {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .page-about__card,
  .page-about__value-card,
  .page-about__feature-block,
  .page-about__team-member {
    padding: 20px !important;
  }
  .page-about__value-icon,
  .page-about__team-photo {
    width: 100% !important;
    height: auto !important;
    min-width: 200px !important;
    min-height: 200px !important;
  }
  .page-about__faq-question {
    padding: 15px 20px !important;
    font-size: 1em !important;
  }
  .page-about__faq-answer {
    padding: 10px 20px 15px !important;
    font-size: 0.9em !important;
  }

  /* 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__feature-block,
  .page-about__team-member,
  .page-about__value-card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 按钮与按钮容器 */
  .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 !important;
    padding-right: 15px !important;
    text-align: center;
  }
  .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;
    display: flex;
    flex-direction: column; /* Ensure vertical stacking for multiple buttons */
  }
  .page-about__feature-block .page-about__cta-button {
    margin-top: 15px !important;
  }
}