.page-about {
  font-family: 'Arial', sans-serif;
  color: #333333; /* Default text color for light body background */
  background-color: #F5F7FA; /* Background color for the main content area */
}

.page-about__hero-section {
  position: relative;
  width: 100%;
  overflow: hidden;
  padding-top: 10px; /* Small top padding, assuming body has padding-top from shared.css */
  padding-bottom: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 500px;
}

.page-about__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin-top: 40px;
  padding: 0 20px;
}

.page-about__main-title {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 700;
  color: #E53935;
  line-height: 1.2;
  margin-bottom: 20px;
}

.page-about__description {
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 30px;
  color: #333333;
}

.page-about__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  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: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
  min-width: 180px;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-about__btn-primary:hover {
  background: linear-gradient(180deg, #E53935 0%, #FF5A4F 100%);
  transform: translateY(-2px);
}

.page-about__btn-secondary {
  background: #ffffff;
  color: #E53935;
  border: 2px solid #E53935;
}

.page-about__btn-secondary:hover {
  background: #E53935;
  color: #ffffff;
  transform: translateY(-2px);
}

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

.page-about__section-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: #E53935;
  text-align: center;
  margin-bottom: 40px;
}

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

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

.page-about__content-grid--reverse {
  grid-template-areas: "image text";
}

.page-about__content-grid--reverse .page-about__text-block { grid-area: text; }
.page-about__content-grid--reverse .page-about__image-block { grid-area: image; }

.page-about__text-block {
  line-height: 1.7;
  font-size: 1rem;
}

.page-about__text-block p {
  margin-bottom: 15px;
}

.page-about__sub-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #E53935;
  margin-top: 30px;
  margin-bottom: 15px;
}

.page-about__list {
  list-style: none;
  padding: 0;
  margin-top: 20px;
}

.page-about__list li {
  position: relative;
  padding-left: 25px;
  margin-bottom: 10px;
  line-height: 1.6;
}

.page-about__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #FF5A4F;
  font-weight: bold;
}

.page-about__image-block {
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-about__content-image {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  min-width: 200px;
  min-height: 200px;
}

.page-about__dark-section {
  background-color: #E53935;
  color: #ffffff;
}

.page-about__dark-section .page-about__section-title,
.page-about__dark-section .page-about__sub-title {
  color: #ffffff;
}

.page-about__dark-section .page-about__commitment-item p {
  color: #f0f0f0;
}

.page-about__commitment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  text-align: center;
}

.page-about__commitment-item {
  background: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-about__commitment-icon {
  width: 100px;
  height: 100px;
  margin-bottom: 20px;
  object-fit: contain;
  min-width: 200px;
  min-height: 200px;
}

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

.page-about__product-card {
  background: #ffffff;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  text-align: center;
  padding-bottom: 20px;
  display: flex;
  flex-direction: column;
}

.page-about__product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  margin-bottom: 15px;
  min-width: 200px;
  min-height: 200px;
}

.page-about__product-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: #E53935;
  margin-bottom: 10px;
  padding: 0 15px;
}

.page-about__product-title a {
  color: #E53935;
  text-decoration: none;
}

.page-about__product-title a:hover {
  text-decoration: underline;
}

.page-about__product-card p {
  font-size: 0.95rem;
  color: #555555;
  padding: 0 15px;
  flex-grow: 1;
}

.page-about__description-text {
  text-align: center;
  font-size: 1.1rem;
  color: #555555;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.page-about__faq-item {
  background: #ffffff;
  border: 1px solid #E0E0E0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.page-about__faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.1rem;
  font-weight: 600;
  color: #333333;
  cursor: pointer;
  list-style: none;
}

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

.page-about__faq-item summary:hover {
  background-color: #f9f9f9;
}

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

.page-about__faq-toggle {
  font-size: 1.5rem;
  font-weight: bold;
  color: #E53935;
  margin-left: 15px;
}

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

.page-about__faq-answer {
  padding: 0 20px 20px;
  font-size: 1rem;
  line-height: 1.7;
  color: #555555;
}

.page-about__faq-answer p {
  margin-bottom: 10px;
}

.page-about__faq-answer a {
  color: #E53935;
  text-decoration: none;
}

.page-about__faq-answer a:hover {
  text-decoration: underline;
}

.page-about__call-to-action-bottom {
  background-color: #E53935;
  color: #ffffff;
  padding: 80px 0;
  text-align: center;
}

.page-about__call-to-action-bottom .page-about__section-title {
  color: #ffffff;
  margin-bottom: 20px;
}

.page-about__call-to-action-bottom .page-about__description {
  color: #f0f0f0;
  margin-bottom: 40px;
}

.page-about__container--flex {
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

/* Mobile Responsive Styles */
@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; /* Small top padding for mobile */
    padding-bottom: 40px;
  }

  .page-about__main-title {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }

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

  .page-about__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
    padding: 0 15px;
    box-sizing: border-box;
  }

  /* 按钮与按钮容器 */
  .page-about__btn-primary,
  .page-about__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
    min-width: unset;
  }

  .page-about__section {
    padding: 40px 0;
  }

  .page-about__section-title {
    font-size: clamp(1.8rem, 7vw, 2.2rem);
    margin-bottom: 30px;
  }

  .page-about__sub-title {
    font-size: 1.3rem;
    margin-top: 25px;
    margin-bottom: 10px;
  }

  /* 其他内容模块 */
  .page-about__container,
  .page-about__card,
  .page-about__section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about__content-grid {
    grid-template-columns: 1fr;
    gap: 30px;
    grid-template-areas: unset; /* Reset grid areas for mobile */
  }
  
  .page-about__content-grid--reverse .page-about__text-block { grid-area: unset; }
  .page-about__content-grid--reverse .page-about__image-block { grid-area: unset; }

  .page-about__commitment-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* 通用图片与容器 */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    min-width: 200px !important;
    min-height: 200px !important;
  }
  
  .page-about__commitment-icon {
    min-width: 150px !important;
    min-height: 150px !important;
    width: 150px !important;
    height: 150px !important;
  }

  .page-about__products-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-about__product-image {
    height: 180px;
  }

  .page-about__product-title {
    font-size: 1.2rem;
  }

  .page-about__product-card p {
    font-size: 0.9rem;
  }

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

  .page-about__faq-answer {
    padding: 0 15px 15px;
    font-size: 0.95rem;
  }

  .page-about__call-to-action-bottom {
    padding: 60px 0;
  }
  
  .page-about__description-text {
    font-size: 1rem;
    padding: 0 15px;
  }

  .page-about__content-image {
    min-width: 200px !important;
    min-height: 200px !important;
  }
}