.page-about {
  font-family: 'Arial', sans-serif;
  color: #F3F8FF; /* Text Main */
  background-color: #08162B; /* Deep Navy - Body background */
  line-height: 1.6;
}

.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 15px;
  box-sizing: border-box;
}

.page-about__hero-section {
  padding-top: 10px; /* Small top padding, relies on body padding-top for header offset */
  padding-bottom: 40px;
  background: linear-gradient(180deg, #113B7A 0%, #08162B 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-width: 1200px;
  margin-bottom: 20px;
  overflow: hidden;
  border-radius: 10px;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

.page-about__hero-content {
  max-width: 900px;
  padding: 0 15px;
}

.page-about__main-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  color: #F2C14E; /* Gold */
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-about__description {
  font-size: clamp(16px, 2vw, 20px);
  color: #AFC4E8; /* Text Secondary */
  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-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 17px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-about__btn-primary:hover {
  background: linear-gradient(180deg, #1144A6 0%, #2B73F6 100%);
  transform: translateY(-2px);
}

.page-about__btn-secondary {
  background: transparent;
  color: #F2C14E; /* Gold */
  border: 2px solid #F2C14E; /* Gold */
}

.page-about__btn-secondary:hover {
  background: rgba(242, 193, 78, 0.1);
  transform: translateY(-2px);
}

.page-about__section-title {
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 30px;
  color: #F2C14E; /* Gold */
}

.page-about__section-description {
  font-size: clamp(15px, 1.8vw, 18px);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  color: #AFC4E8; /* Text Secondary */
}

.page-about__dark-section {
  background-color: #10233F; /* Card BG */
  padding: 60px 0;
}

.page-about__introduction-section,
.page-about__responsible-gaming-section {
  padding: 60px 0;
}

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

.page-about__text-block {
  flex: 1;
  font-size: 17px;
  line-height: 1.7;
  color: #F3F8FF; /* Text Main */
}

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

.page-about__text-block p:last-child {
  margin-bottom: 0;
}

.page-about__text-block a {
  color: #4FA8FF; /* Glow */
  text-decoration: underline;
}

.page-about__image-block {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 10px;
  overflow: hidden;
}

.page-about__content-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
}

.page-about__core-values-section {
  padding: 60px 0;
  background-color: #08162B; /* Deep Navy */
}

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

.page-about__value-card {
  background-color: #10233F; /* Card BG */
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid #244D84; /* Border */
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__value-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-about__value-title {
  font-size: 24px;
  font-weight: 700;
  color: #F2C14E; /* Gold */
  margin-bottom: 15px;
}

.page-about__value-card p {
  font-size: 16px;
  color: #AFC4E8; /* Text Secondary */
}

.page-about__why-choose-us {
  padding: 60px 0;
}

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

.page-about__feature-card {
  background-color: #10233F; /* Card BG */
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid #244D84; /* Border */
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-about__feature-icon {
  width: 100%;
  max-width: 300px;
  height: auto;
  display: block;
  margin: 0 auto 20px;
  border-radius: 8px;
}

.page-about__feature-title {
  font-size: 24px;
  font-weight: 700;
  color: #F2C14E; /* Gold */
  margin-bottom: 15px;
}

.page-about__feature-card p {
  font-size: 16px;
  color: #AFC4E8; /* Text Secondary */
}

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

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

details.page-about__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid #244D84; /* Border */
  overflow: hidden;
  background: #10233F; /* Card BG */
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

details.page-about__faq-item summary.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}

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

details.page-about__faq-item summary.page-about__faq-question:hover {
  background: rgba(36, 77, 132, 0.3); /* Lighter Border color for hover */
}

.page-about__faq-qtext {
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #F3F8FF; /* Text Main */
}

.page-about__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: #F2C14E; /* Gold */
  flex-shrink: 0;
  margin-left: 15px;
  width: 30px;
  text-align: center;
}

details.page-about__faq-item .page-about__faq-answer {
  padding: 0 25px 20px;
  background: #08162B; /* Deep Navy */
  border-radius: 0 0 8px 8px;
  color: #AFC4E8; /* Text Secondary */
  font-size: 16px;
}

.page-about__contact-cta-section {
  padding: 60px 0;
  background-color: #08162B; /* Deep Navy */
  text-align: center;
}

/* --- Media Queries for Responsiveness --- */

@media (max-width: 1024px) {
  .page-about__hero-image-wrapper {
    max-width: 90%;
  }
  .page-about__content-wrapper {
    flex-direction: column;
    text-align: center;
  }
  .page-about__image-block {
    order: -1; /* Image above text on smaller screens */
  }
  .page-about__text-block {
    padding: 0 15px;
  }
  .page-about__values-grid,
  .page-about__features-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  /* HERO 主图区域 */
  .page-about__hero-section {
    padding-top: 10px;
    padding-bottom: 30px;
  }
  .page-about__hero-image-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    border-radius: 0;
  }
  .page-about__hero-image {
    object-fit: contain !important; /* Mobile: contain to prevent cropping */
    aspect-ratio: unset !important; /* Mobile: unset aspect ratio */
    height: auto !important;
    max-width: 100% !important;
    width: 100% !important;
  }
  .page-about__main-title {
    font-size: clamp(26px, 7vw, 36px);
    margin-bottom: 10px;
  }
  .page-about__description {
    font-size: clamp(15px, 4vw, 18px);
    margin-bottom: 25px;
  }
  .page-about__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
    padding: 0 15px;
    box-sizing: border-box;
  }
  .page-about__btn-primary,
  .page-about__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    font-size: 16px;
    padding: 12px 20px;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 装饰主标题 + 长文 SEO 区 */
  .page-about__section-title {
    font-size: clamp(22px, 6vw, 32px);
    margin-bottom: 20px;
  }
  .page-about__section-description {
    font-size: clamp(14px, 3.5vw, 16px);
    margin-bottom: 30px;
    padding: 0 15px;
  }
  .page-about__introduction-section,
  .page-about__core-values-section,
  .page-about__why-choose-us,
  .page-about__responsible-gaming-section,
  .page-about__faq-section,
  .page-about__contact-cta-section {
    padding: 40px 0;
  }
  .page-about__container {
    padding: 0 15px;
  }
  .page-about__content-wrapper {
    gap: 30px;
  }
  .page-about__text-block {
    font-size: 15px;
  }
  .page-about__content-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  /* 通用图片与容器 */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block;
  }
  .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;
  }

  /* 卡片布局 */
  .page-about__values-grid,
  .page-about__features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-about__value-card,
  .page-about__feature-card {
    padding: 25px;
  }
  .page-about__value-title,
  .page-about__feature-title {
    font-size: 20px;
  }
  .page-about__value-card p,
  .page-about__feature-card p {
    font-size: 15px;
  }
  .page-about__feature-icon {
    max-width: 200px;
  }

  /* FAQ */
  details.page-about__faq-item summary.page-about__faq-question {
    padding: 15px 20px;
  }
  .page-about__faq-qtext {
    font-size: 16px;
  }
  .page-about__faq-toggle {
    font-size: 24px;
    width: 24px;
  }
  details.page-about__faq-item .page-about__faq-answer {
    padding: 0 20px 15px;
  }
}

@media (max-width: 480px) {
  .page-about__main-title {
    font-size: clamp(24px, 8vw, 32px);
  }
  .page-about__section-title {
    font-size: clamp(20px, 7vw, 28px);
  }
  .page-about__section-description {
    font-size: clamp(13px, 4vw, 15px);
  }
  .page-about__text-block {
    font-size: 14px;
  }
  .page-about__value-title,
  .page-about__feature-title {
    font-size: 18px;
  }
  .page-about__value-card p,
  .page-about__feature-card p {
    font-size: 14px;
  }
  .page-about__faq-qtext {
    font-size: 15px;
  }
  details.page-about__faq-item .page-about__faq-answer {
    font-size: 14px;
  }
}