.page-about {
  font-family: Arial, sans-serif;
  color: #333333; /* Default text color for light body background */
  background-color: #F5F7FA; /* Body background from shared.css */
  line-height: 1.6;
}

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

.page-about__dark-section {
  background-color: #E53935; /* Main brand color */
  color: #ffffff; /* White text for dark background */
}

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

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

.page-about__hero-section {
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  padding-bottom: 40px;
  background-color: #F5F7FA;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 500px;
  overflow: hidden;
  margin-bottom: 30px;
}

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

.page-about__hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.page-about__main-title {
  font-size: 2.8em;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #E53935;
  letter-spacing: -0.02em;
}

.page-about__intro-text {
  font-size: 1.1em;
  margin-bottom: 30px;
}

.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: 700;
  transition: all 0.3s ease;
  white-space: nowrap;
  box-sizing: border-box;
  max-width: 100%; /* Ensure buttons don't overflow */
  text-align: center;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
  color: #ffffff;
  border: none;
}

.page-about__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

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

.page-about__btn-secondary:hover {
  background-color: #E53935;
  color: #ffffff;
}

.page-about__btn-large {
  padding: 18px 40px;
  font-size: 1.1em;
}

.page-about__section-title {
  font-size: 2.2em;
  font-weight: 700;
  color: #E53935;
  text-align: center;
  margin-bottom: 40px;
}

.page-about__section-description {
  font-size: 1.1em;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px;
}

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

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

.page-about__content-grid--reversed .page-about__image-wrapper {
  grid-area: image;
}

.page-about__content-grid--reversed .page-about__text-block {
  grid-area: text;
}

.page-about__image-wrapper {
  text-align: center;
}

.page-about__image {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  object-fit: cover;
  min-width: 200px;
  min-height: 200px;
}

.page-about__text-block p {
  margin-bottom: 15px;
  font-size: 1em;
}

.page-about__mission-vision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-bottom: 50px;
}

.page-about__card {
  background-color: #FFFFFF; /* Card background color */
  color: #333333;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  border: 1px solid #E0E0E0; /* Border color */
}

.page-about__dark-section .page-about__card {
  background-color: rgba(255, 255, 255, 0.1); /* Slightly transparent white on dark background */
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.page-about__card-title,
.page-about__value-title {
  font-size: 1.5em;
  font-weight: 700;
  color: #E53935;
  margin-bottom: 15px;
}

.page-about__dark-section .page-about__card-title,
.page-about__dark-section .page-about__value-title {
  color: #FF5A4F;
}

.page-about__vision-image {
  margin-top: 30px;
  width: 100%;
  height: auto;
  display: block;
}

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

.page-about__benefits-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-about__benefits-list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 15px;
  font-size: 1.05em;
}

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

.page-about__responsible-gaming-list {
  list-style: none;
  padding: 0;
  margin: 0 auto 40px;
  max-width: 900px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.page-about__responsible-gaming-list li {
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  padding: 20px;
  border-radius: 8px;
  font-size: 1em;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.page-about__responsible-gaming-list li strong {
  color: #FF5A4F;
}

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

.page-about__faq-item {
  background-color: #FFFFFF;
  border: 1px solid #E0E0E0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

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

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

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

.page-about__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  color: #E53935;
  transition: transform 0.3s ease;
}

.page-about__faq-item[open] .page-about__faq-toggle {
  transform: rotate(45deg);
}

.page-about__faq-answer {
  padding: 0 20px 20px;
  font-size: 1em;
  color: #555555;
  line-height: 1.6;
}

.page-about__faq-answer p {
  margin-bottom: 0;
}

.page-about__cta-section {
  text-align: center;
  padding: 80px 0;
}

/* --- Responsive Styles --- */

/* Tablet and Mobile */
@media (max-width: 1024px) {
  .page-about__main-title {
    font-size: 2.5em;
  }

  .page-about__section-title {
    font-size: 2em;
  }

  .page-about__content-grid {
    grid-template-columns: 1fr;
  }

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

  .page-about__mission-vision-grid {
    grid-template-columns: 1fr;
  }

  .page-about__responsible-gaming-list {
    grid-template-columns: 1fr;
  }
}

/* Mobile specific styles */
@media (max-width: 768px) {
  /* 1. HERO 主图区域 */
  .page-about__hero-section {
    padding-top: 10px !important; /* Small top padding, body handles --header-offset */
    padding-bottom: 30px;
  }

  .page-about__hero-image-wrapper {
    max-height: 300px;
  }

  .page-about__main-title {
    font-size: 2em !important;
    margin-bottom: 15px;
  }

  .page-about__intro-text {
    font-size: 0.95em;
    margin-bottom: 20px;
  }

  /* 2. 产品展示图区域 (Not applicable for About Us, but general image rules apply) */
  /* No specific product display grid in About Us page. */

  /* 3. 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__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow-x: hidden;
  }

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

  .page-about__content-grid {
    gap: 20px;
  }

  /* 4. 按钮与按钮容器 */
  .page-about__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px; /* Add padding to button container */
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden;
  }

  .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: 12px 20px;
    font-size: 1em;
  }

  .page-about__btn-large {
    padding: 15px 25px !important;
    font-size: 1.05em !important;
  }

  /* 5. 其他内容模块 */
  .page-about__section-title {
    font-size: 1.8em !important;
    margin-bottom: 30px;
  }

  .page-about__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }

  .page-about__card {
    padding: 20px;
  }

  .page-about__card-title,
  .page-about__value-title {
    font-size: 1.3em;
  }

  .page-about__benefits-list li {
    font-size: 0.95em;
    padding-left: 25px;
  }

  .page-about__responsible-gaming-list li {
    font-size: 0.95em;
  }

  .page-about__faq-question {
    font-size: 1em;
    padding: 15px;
  }

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

  .page-about__cta-section {
    padding: 60px 0;
  }
}