.page-about {
  font-family: 'Arial', sans-serif;
  background-color: var(--background-color, #08160F);
  color: var(--text-main, #F2FFF6);
  line-height: 1.6;
}

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

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

.page-about__section-title {
  font-size: clamp(28px, 4vw, 42px);
  color: var(--text-main, #F2FFF6);
  text-align: center;
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.page-about__section-description {
  font-size: 18px;
  color: var(--text-secondary, #A7D9B8);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
}

.page-about__main-title {
  font-size: clamp(32px, 5vw, 56px);
  color: var(--text-main, #F2FFF6);
  text-align: center;
  margin-bottom: 20px;
  font-weight: 800;
  line-height: 1.1;
}

.page-about__sub-title {
  font-size: clamp(24px, 3vw, 32px);
  color: var(--text-main, #F2FFF6);
  margin-top: 30px;
  margin-bottom: 15px;
  font-weight: 600;
}

.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px;
  overflow: hidden;
  min-height: 600px;
  background-color: var(--background-color, #08160F);
}

.page-about__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
}

.page-about__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4); /* Darken image for text readability */
}

.page-about__hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  text-align: center;
  padding: 20px;
  box-sizing: border-box;
}

.page-about__hero-description {
  font-size: 20px;
  color: var(--text-secondary, #A7D9B8);
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  text-align: center;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-about__btn-primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  box-shadow: 0 0 15px var(--glow, #57E38D);
}

.page-about__btn-secondary {
  background: transparent;
  color: var(--text-main, #F2FFF6);
  border: 2px solid var(--border, #2E7A4E);
}

.page-about__btn-secondary:hover {
  background-color: var(--border, #2E7A4E);
  color: #ffffff;
}

.page-about__content-wrapper {
  display: flex;
  gap: 40px;
  align-items: flex-start;
  margin-top: 40px;
}

.page-about__content-wrapper--reverse {
  flex-direction: row-reverse;
}

.page-about__text-block {
  flex: 1;
  min-width: 0;
}

.page-about__text-block p {
  margin-bottom: 15px;
  font-size: 17px;
  color: var(--text-secondary, #A7D9B8);
}

.page-about__text-block strong {
  color: var(--text-main, #F2FFF6);
}

.page-about__image-block {
  flex: 0 0 500px; /* Fixed width for desktop */
  max-width: 50%;
  box-sizing: border-box;
}

.page-about__image-center {
  text-align: center;
  margin-top: 40px;
}

.page-about__image {
  width: 100%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
}

.page-about__list {
  list-style-type: disc;
  margin-left: 20px;
  padding-left: 0;
  margin-bottom: 15px;
  color: var(--text-secondary, #A7D9B8);
}

.page-about__list li {
  margin-bottom: 8px;
  font-size: 17px;
}

.page-about__value-card,
.page-about__feature-card {
  background-color: var(--card-bg, #11271B);
  border: 1px solid var(--border, #2E7A4E);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  box-sizing: border-box;
}

.page-about__value-card:hover,
.page-about__feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.page-about__value-title,
.page-about__feature-title {
  font-size: 22px;
  color: var(--text-main, #F2FFF6);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-about__value-card p,
.page-about__feature-card p {
  font-size: 16px;
  color: var(--text-secondary, #A7D9B8);
}

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

.page-about__section--faq .page-about__section-description {
  margin-bottom: 20px;
}

.page-about__faq-list {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__faq-item {
  background-color: var(--card-bg, #11271B);
  border: 1px solid var(--divider, #1E3A2A);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.page-about__faq-item[open] {
  background-color: var(--deep-green, #0A4B2C);
  border-color: var(--main-color, #11A84E);
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main, #F2FFF6);
  cursor: pointer;
  list-style: none;
  outline: none;
}

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

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

.page-about__faq-toggle {
  font-size: 24px;
  line-height: 1;
  margin-left: 15px;
  color: var(--glow, #57E38D);
}

.page-about__faq-answer {
  padding: 0 25px 20px;
  font-size: 16px;
  color: var(--text-secondary, #A7D9B8);
  line-height: 1.8;
}

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

.page-about__cta-center {
  text-align: center;
  margin-top: 40px;
}

/* Mobile Responsive */
@media (max-width: 1024px) {
  .page-about__image-block {
    flex: 0 0 40%;
    max-width: 40%;
  }
}

@media (max-width: 768px) {
  .page-about__section {
    padding: 40px 0;
  }

  .page-about__hero-section {
    min-height: 400px;
    padding-bottom: 40px;
  }

  .page-about__main-title {
    font-size: clamp(28px, 8vw, 40px);
  }

  .page-about__hero-description {
    font-size: 18px;
  }

  .page-about__btn-primary,
  .page-about__btn-secondary {
    padding: 12px 20px;
    font-size: 16px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

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

  .page-about__container {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-about__section-title {
    font-size: clamp(24px, 6vw, 36px);
  }

  .page-about__section-description {
    font-size: 16px;
    margin-bottom: 30px;
  }

  .page-about__content-wrapper,
  .page-about__content-wrapper--reverse {
    flex-direction: column;
    gap: 30px;
    margin-top: 30px;
  }

  .page-about__image-block {
    flex: none;
    max-width: 100%;
    width: 100%;
  }

  .page-about__image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

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

  .page-about__faq-question {
    padding: 15px 20px;
    font-size: 16px;
  }

  .page-about__faq-answer {
    padding: 0 20px 15px;
    font-size: 15px;
  }

  .page-about__text-block p,
  .page-about__list li,
  .page-about__value-card p,
  .page-about__feature-card p {
    font-size: 15px;
  }

  .page-about__video-section {
    padding-top: 10px !important; /* body 已承担 --header-offset，此处禁止 var(--header-offset) */
  }

  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-about__section,
  .page-about__card,
  .page-about__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
}

/* CSS for elements containing images to prevent overflow */
.page-about__content-wrapper,
.page-about__values-grid,
.page-about__features-grid,
.page-about__faq-list {
  max-width: 100%;
  width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* Ensure no image filters are applied */
.page-about__image {
  filter: brightness(0.4); /* Only for hero image to darken it, not changing color */
}

.page-about img:not(.page-about__hero-image) {
  filter: none; /* Ensure no filters on other images */
}

/* Content area images CSS size lower limit */
.page-about__section img {
  min-width: 200px;
  min-height: 200px;
}

@media (max-width: 768px) {
  .page-about__section img {
    min-width: unset;
    min-height: unset;
  }
}