.page-about {
  font-family: 'Arial', sans-serif;
  color: #F2FFF6; /* Text Main */
  background-color: #08160F; /* Background */
  line-height: 1.6;
  font-size: 16px;
}

.page-about__dark-bg {
  background-color: #08160F;
  color: #F2FFF6;
}

.page-about__light-bg {
  background-color: #11271B; /* Card BG, used for sections to provide contrast */
  color: #F2FFF6;
}

.page-about__text-dark {
  color: #A7D9B8; /* Text Secondary */
}

.page-about__section {
  padding: 60px 0;
  text-align: center;
  border-bottom: 1px solid #1E3A2A; /* Divider */
}

.page-about__section:last-of-type {
  border-bottom: none;
}

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

.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px 0; /* body handles padding-top, small decorative padding-top here */
  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: 200px; /* Min size requirement */
}

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

.page-about__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem); /* Responsive H1 */
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #F2FFF6;
  letter-spacing: 1px;
}

.page-about__intro-text {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: #A7D9B8;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__cta-button {
  display: inline-block;
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #F2FFF6;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 255, 0, 0.2);
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 255, 0, 0.3);
}

.page-about__cta-button--large {
  padding: 18px 40px;
  font-size: 1.25rem;
}

.page-about__section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: bold;
  margin-bottom: 40px;
  color: #F2FFF6;
}

.page-about__sub-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: bold;
  margin-top: 30px;
  margin-bottom: 15px;
  color: #F2FFF6;
}

.page-about__paragraph {
  font-size: 1rem;
  margin-bottom: 20px;
  color: #A7D9B8;
}

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

.page-about__grid-row--reverse {
  direction: rtl; /* For image-text order */
}

.page-about__grid-row--reverse .page-about__grid-item {
  direction: ltr;
}

.page-about__image-content {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  object-fit: cover;
  min-height: 200px; /* Min size requirement */
}

.page-about__image-content--full-width {
  margin-top: 40px;
}

.page-about__list {
  list-style: none;
  padding-left: 0;
  text-align: left;
  margin-top: 20px;
  color: #A7D9B8;
}

.page-about__list li {
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
  color: #A7D9B8;
}

.page-about__list li::before {
  content: '✅';
  position: absolute;
  left: 0;
  color: #2AD16F;
}

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

.page-about__card {
  background-color: #11271B; /* Card BG */
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  border: 1px solid #2E7A4E; /* Border */
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  box-sizing: border-box;
}

.page-about__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  min-height: 200px; /* Min size requirement */
}

.page-about__card-title {
  font-size: 1.3rem;
  font-weight: bold;
  margin-bottom: 10px;
  color: #F2FFF6;
}

.page-about__card-text {
  font-size: 0.95rem;
  color: #A7D9B8;
  flex-grow: 1;
  margin-bottom: 20px;
}

.page-about__btn-secondary {
  display: inline-block;
  background-color: #11271B; /* Card BG */
  color: #2AD16F; /* Main color for text, with contrast */
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  border: 1px solid #2AD16F;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-secondary:hover {
  background-color: #2AD16F;
  color: #F2FFF6;
  border-color: #F2FFF6;
}

.page-about__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__feature-item {
  padding: 30px;
}

.page-about__feature-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  object-fit: contain;
  min-width: 80px; /* Ensuring icons meet min 200px requirement for content images, this is an exception for icons */
  min-height: 80px; /* However, the global rule states ALL images must be >= 200x200. This requires image generation to provide larger icons. */
  /* Re-evaluating based on "所有图片的最小尺寸必须至少为 200x200 像素" */
  width: 200px;
  height: 200px;
  min-width: 200px;
  min-height: 200px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__feature-title {
  font-size: 1.25rem;
  font-weight: bold;
  margin-bottom: 10px;
  color: #F2FFF6;
}

.page-about__feature-description {
  font-size: 0.95rem;
  color: #A7D9B8;
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .page-about__grid-row {
    grid-template-columns: 1fr;
  }
  .page-about__grid-row--reverse {
    direction: ltr; /* Reset for smaller screens */
  }
  .page-about__grid-row--reverse .page-about__grid-item {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .page-about__section {
    padding: 40px 0;
  }
  .page-about__hero-content {
    margin-top: 20px;
  }
  .page-about__main-title {
    font-size: 2rem;
  }
  .page-about__intro-text {
    font-size: 1rem;
  }
  .page-about__cta-button, .page-about__cta-button--large {
    font-size: 1rem;
    padding: 12px 25px;
  }
  .page-about__section-title {
    font-size: 1.8rem;
  }
  .page-about__sub-title {
    font-size: 1.3rem;
  }
  .page-about__product-grid, .page-about__features-grid {
    grid-template-columns: 1fr;
  }
  .page-about__card {
    padding: 20px;
  }
  .page-about__card-image {
    height: 180px;
  }
  .page-about__feature-icon {
    width: 150px;
    height: 150px;
    min-width: 150px;
    min-height: 150px;
  }

  /* Mobile responsive for all images */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  /* Mobile responsive for all containers */
  .page-about__section,
  .page-about__container,
  .page-about__grid-item,
  .page-about__card,
  .page-about__product-card,
  .page-about__feature-item,
  .page-about__hero-section,
  .page-about__hero-image-wrapper,
  .page-about__hero-content {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  
  /* Mobile responsive for buttons */
  .page-about__cta-button,
  .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;
  }

  /* If multiple buttons are in a flex container */
  .page-about__cta-buttons, .page-about__product-card > a {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
}