.page-about {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #333333; /* Default dark text for light body background */
  background-color: #FFFFFF;
}

.page-about__section {
  padding: 40px 0;
  margin-bottom: 20px;
}

.page-about__container {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-about__hero-section {
  position: relative;
  text-align: center;
  color: #ffffff;
  padding-top: 10px; /* Small top padding as shared.css handles body padding */
  background-color: #017439; /* Default background for hero if image not loaded */
}

.page-about__hero-image-wrapper {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  overflow: hidden;
}

.page-about__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.page-about__hero-content {
  position: relative;
  z-index: 2;
  padding: 60px 20px;
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.7)); /* Dark overlay for text readability */
}

.page-about__main-title {
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #ffffff;
  font-size: clamp(2.5rem, 5vw, 3.5rem);
}

.page-about__hero-description {
  font-size: 1.25rem;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #ffffff;
}

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

.page-about__btn {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary {
  background-color: #C30808; /* Custom color for Register */
  color: #FFFF00; /* Custom font color for Register */
  border: 2px solid #C30808;
}

.page-about__btn-primary:hover {
  background-color: #a00606;
  border-color: #a00606;
}

.page-about__btn-secondary {
  background-color: transparent;
  color: #FFFF00; /* Custom font color for Login */
  border: 2px solid #C30808; /* Custom border color for Login */
}

.page-about__btn-secondary:hover {
  background-color: #C30808;
  color: #ffffff;
}

.page-about__section-title {
  font-size: 2.5rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 30px;
  color: #017439;
}

.page-about__text-block {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 20px;
  text-align: justify;
}

.page-about__image-figure {
  margin: 30px auto;
  text-align: center;
  max-width: 800px;
}

.page-about__image {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.page-about__image-caption {
  font-size: 0.9rem;
  color: #666666;
  margin-top: 10px;
}

.page-about__dark-section {
  background-color: #017439;
  color: #ffffff;
}

.page-about__dark-section .page-about__section-title,
.page-about__dark-section .page-about__text-block,
.page-about__dark-section .page-about__grid-title {
  color: #ffffff;
}

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

.page-about__grid-item {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.page-about__grid-title {
  font-size: 1.8rem;
  font-weight: bold;
  margin-bottom: 15px;
}

.page-about__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.page-about__feature-card {
  background-color: #ffffff;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
}

.page-about__feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.page-about__feature-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: #017439;
  margin-bottom: 10px;
}

.page-about__feature-description {
  font-size: 1rem;
  color: #555555;
}

.page-about__game-categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.page-about__game-card {
  background-color: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  text-decoration: none;
  color: #333333;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__game-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 15px rgba(0,0,0,0.15);
}

.page-about__game-card-image {
  width: 100%;
  height: 200px; /* Fixed height for consistency */
  object-fit: cover;
  display: block;
}

.page-about__game-card-title {
  font-size: 1.3rem;
  font-weight: bold;
  color: #017439;
  padding: 15px 15px 5px;
}

.page-about__game-card-description {
  font-size: 0.95rem;
  color: #555555;
  padding: 0 15px 15px;
}

.page-about__commitment-points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.page-about__commitment-item {
  background-color: #f9f9f9;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.page-about__commitment-title {
  font-size: 1.6rem;
  font-weight: bold;
  color: #017439;
  margin-bottom: 10px;
}

.page-about__support-channels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.page-about__channel-card {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 8px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.page-about__channel-title {
  font-size: 1.6rem;
  font-weight: bold;
  color: #ffffff;
  margin-bottom: 15px;
}

.page-about__channel-description {
  font-size: 1rem;
  color: #f0f0f0;
  margin-bottom: 20px;
}

.page-about__btn-link {
  background-color: #FFFF00;
  color: #017439;
  border: 2px solid #FFFF00;
  padding: 10px 20px;
  border-radius: 5px;
}

.page-about__btn-link:hover {
  background-color: #e0e000;
  border-color: #e0e000;
}

.page-about__promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.page-about__promo-card {
  background-color: #f0fdf4; /* Lighter green tint */
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
  text-align: center;
}

.page-about__promo-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: #017439;
  margin-bottom: 10px;
}

.page-about__promo-description {
  font-size: 1rem;
  color: #555555;
  margin-bottom: 20px;
}

.page-about__btn-promo {
  background-color: #017439;
  color: #ffffff;
  border: 2px solid #017439;
  padding: 10px 20px;
  border-radius: 5px;
}

.page-about__btn-promo:hover {
  background-color: #005a2d;
  border-color: #005a2d;
}

.page-about__cta-content {
  text-align: center;
  padding: 60px 20px;
}

.page-about__cta-content .page-about__section-title,
.page-about__cta-content .page-about__text-block {
  color: #ffffff;
}

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

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

.page-about__faq-item {
  background-color: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.2rem;
  font-weight: bold;
  color: #017439;
  cursor: pointer;
  list-style: none; /* For details/summary */
}

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

.page-about__faq-qtext {
  flex-grow: 1;
  pointer-events: none; /* Allow clicking anywhere on summary */
}

.page-about__faq-toggle {
  font-size: 1.5rem;
  margin-left: 15px;
  color: #017439;
  pointer-events: none; /* Allow clicking anywhere on summary */
}

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

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

/* --- Mobile Responsive Styles --- */
@media (max-width: 1024px) {
  .page-about__main-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }
  .page-about__section-title {
    font-size: 2rem;
  }
  .page-about__hero-content {
    padding: 40px 15px;
  }
  .page-about__btn {
    padding: 12px 25px;
  }
}

@media (max-width: 768px) {
  /* 1. 顶区标题 + 双 CTA */
  .page-about__hero-section {
    padding-top: 10px !important; /* Small top padding */
  }
  .page-about__hero-content {
    padding: 30px 15px;
  }
  .page-about__main-title {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
    margin-bottom: 15px;
  }
  .page-about__hero-description {
    font-size: 1rem;
    margin-bottom: 20px;
  }
  .page-about__hero-cta-buttons,
  .page-about__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about__btn-link,
  .page-about__btn-promo,
  .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;
    padding-right: 15px;
  }
  .page-about__hero-cta-buttons,
  .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;
  }

  /* 2. 单栏长文容器 */
  .page-about__container {
    padding: 0 15px;
  }
  .page-about__section {
    padding: 30px 0;
  }
  .page-about__section-title {
    font-size: 1.8rem;
    margin-bottom: 20px;
  }
  .page-about__text-block {
    font-size: 1rem;
    margin-bottom: 15px;
  }

  /* 3. 通通用图片与 figure */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
  }
  .page-about__image-figure {
    margin: 20px auto;
  }
  .page-about__image-caption {
    font-size: 0.85rem;
  }
  .page-about__game-card-image {
    height: 180px; /* Adjust height for mobile */
  }

  /* 4. 按钮与按钮容器 (already covered in section 1 and general .page-about__btn rules) */
  /* Ensure all containers holding buttons are responsive */
  .page-about__promo-grid, .page-about__support-channels, .page-about__commitment-points, .page-about__features-grid, .page-about__game-categories-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* 5. FAQ 区块 */
  .page-about__faq-question {
    font-size: 1rem;
    padding: 15px;
  }
  .page-about__faq-toggle {
    font-size: 1.2rem;
  }
  .page-about__faq-answer {
    padding: 0 15px 15px;
    font-size: 0.95rem;
  }

  /* General mobile container padding */
  .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;
  }
  .page-about__dark-section .page-about__grid {
    grid-template-columns: 1fr;
  }
  .page-about__grid-item {
    padding: 20px;
  }
}