.page-ban-ca {
  font-family: 'Arial', sans-serif;
  color: var(--Text-Main, #F3F8FF);
  background-color: var(--Deep-Navy, #08162B);
  line-height: 1.6;
}

.page-ban-ca__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 15px;
}

.page-ban-ca__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 10px; /* Small top padding, header offset handled by body */
  padding-bottom: 60px;
  overflow: hidden;
  color: var(--Text-Main, #F3F8FF);
}

.page-ban-ca__hero-image-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.page-ban-ca__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.6); /* Darken image for text readability */
}

.page-ban-ca__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 20px;
  margin-top: 50px;
}

.page-ban-ca__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--Text-Main, #F3F8FF);
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-ban-ca__intro-text {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--Text-Secondary, #AFC4E8);
  margin-bottom: 30px;
}

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

.page-ban-ca__cta-buttons--center {
  margin-top: 40px;
}

.page-ban-ca__btn-primary,
.page-ban-ca__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
  max-width: 100%;
}

.page-ban-ca__btn-primary {
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: var(--Text-Main, #F3F8FF);
  border: 2px solid transparent;
}

.page-ban-ca__btn-primary:hover {
  background: linear-gradient(180deg, #1144A6 0%, #2B73F6 100%);
  box-shadow: 0 0 15px var(--Glow, #4FA8FF);
}

.page-ban-ca__btn-secondary {
  background: transparent;
  color: var(--Glow, #4FA8FF);
  border: 2px solid var(--Glow, #4FA8FF);
}

.page-ban-ca__btn-secondary:hover {
  background: var(--Glow, #4FA8FF);
  color: var(--Deep-Navy, #08162B);
}

.page-ban-ca__section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--Gold, #F2C14E);
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.3;
}

.page-ban-ca__section-description,
.page-ban-ca__article-body {
  font-size: 1rem;
  color: var(--Text-Secondary, #AFC4E8);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px auto;
}

.page-ban-ca__dark-section {
  background-color: var(--Card-B-G, #10233F);
  padding: 60px 0;
  color: var(--Text-Main, #F3F8FF);
}

.page-ban-ca__features-section,
.page-ban-ca__how-to-play-section,
.page-ban-ca__game-play-section,
.page-ban-ca__strategy-section,
.page-ban-ca__promotions-section,
.page-ban-ca__faq-section,
.page-ban-ca__contact-cta-section {
  padding: 60px 0;
}

.page-ban-ca__features-grid,
.page-ban-ca__steps-grid,
.page-ban-ca__strategy-grid,
.page-ban-ca__promotions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-ban-ca__feature-card,
.page-ban-ca__step-card,
.page-ban-ca__strategy-card,
.page-ban-ca__promo-card {
  background-color: var(--Card-B-G, #10233F);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  padding: 30px 20px;
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: var(--Text-Main, #F3F8FF);
}

.page-ban-ca__feature-card:hover,
.page-ban-ca__step-card:hover,
.page-ban-ca__strategy-card:hover,
.page-ban-ca__promo-card:hover {
  transform: translateY(-10px);
}

.page-ban-ca__feature-image,
.page-ban-ca__promo-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-ban-ca__feature-title,
.page-ban-ca__step-title,
.page-ban-ca__strategy-title,
.page-ban-ca__promo-title,
.page-ban-ca__game-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--Gold, #F2C14E);
  margin-bottom: 15px;
}

.page-ban-ca__feature-text,
.page-ban-ca__step-text,
.page-ban-ca__strategy-text,
.page-ban-ca__promo-text,
.page-ban-ca__game-description {
  font-size: 0.95rem;
  color: var(--Text-Secondary, #AFC4E8);
  margin-bottom: 15px;
  flex-grow: 1;
}

.page-ban-ca__step-card {
  background-color: var(--Primary-Color, #113B7A);
  border: 1px solid var(--Border-Color, #244D84);
}

.page-ban-ca__step-card .page-ban-ca__step-title {
  color: var(--Text-Main, #F3F8FF);
}

.page-ban-ca__step-card .page-ban-ca__step-text {
  color: var(--Text-Secondary, #AFC4E8);
}

.page-ban-ca__step-text a {
  color: var(--Glow, #4FA8FF);
  text-decoration: none;
}

.page-ban-ca__step-text a:hover {
  text-decoration: underline;
}

.page-ban-ca__game-showcase {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-ban-ca__game-item {
  background-color: var(--Primary-Color, #113B7A);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  padding: 20px;
  text-align: center;
}

.page-ban-ca__game-iframe {
  border: none;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-ban-ca__strategy-card {
  background-color: var(--Primary-Color, #113B7A);
  border: 1px solid var(--Border-Color, #244D84);
  text-align: left;
}

.page-ban-ca__strategy-card .page-ban-ca__strategy-title {
  color: var(--Text-Main, #F3F8FF);
}

.page-ban-ca__strategy-card .page-ban-ca__strategy-text {
  color: var(--Text-Secondary, #AFC4E8);
}

.page-ban-ca__light-bg {
  background-color: var(--Primary-Color, #113B7A);
  color: var(--Text-Main, #F3F8FF);
}

.page-ban-ca__promo-card .page-ban-ca__btn-secondary {
  margin-top: auto;
}

.page-ban-ca__contact-cta-section {
  text-align: center;
  padding: 80px 0;
}

.page-ban-ca__contact-cta-content {
  max-width: 700px;
}

/* FAQ Section Styles */
details.page-ban-ca__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid var(--Border-Color, #244D84);
  overflow: hidden;
  background: var(--Primary-Color, #113B7A);
  color: var(--Text-Main, #F3F8FF);
}
details.page-ban-ca__faq-item summary.page-ban-ca__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-ban-ca__faq-item summary.page-ban-ca__faq-question::-webkit-details-marker {
  display: none;
}
details.page-ban-ca__faq-item summary.page-ban-ca__faq-question:hover {
  background: var(--Secondary-Color, #1D5FD1);
}
.page-ban-ca__faq-qtext {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--Text-Main, #F3F8FF);
}
.page-ban-ca__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: var(--Gold, #F2C14E);
  flex-shrink: 0;
  margin-left: 15px;
  width: 32px;
  text-align: center;
}
details.page-ban-ca__faq-item .page-ban-ca__faq-answer {
  padding: 0 25px 20px;
  background: var(--Card-B-G, #10233F);
  border-radius: 0 0 8px 8px;
  color: var(--Text-Secondary, #AFC4E8);
}

/* General image responsiveness */
.page-ban-ca img {
  max-width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 1024px) {
  .page-ban-ca__main-title {
    font-size: clamp(2rem, 6vw, 3rem);
  }
  .page-ban-ca__section-title {
    font-size: clamp(1.6rem, 5vw, 2.5rem);
  }
  .page-ban-ca__hero-content {
    margin-top: 30px;
  }
}

@media (max-width: 768px) {
  .page-ban-ca {
    font-size: 16px;
    line-height: 1.6;
  }
  
  /* HERO 主图区域 */
  .page-ban-ca__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
  }
  .page-ban-ca__hero-image {
    object-fit: contain !important;
    aspect-ratio: unset !important;
    filter: brightness(0.5); /* Slightly darker for mobile */
  }
  .page-ban-ca__hero-content {
    margin-top: 20px;
    padding: 15px;
  }
  .page-ban-ca__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
    margin-bottom: 15px;
  }
  .page-ban-ca__intro-text {
    font-size: 1rem;
    margin-bottom: 25px;
  }
  .page-ban-ca__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 0 15px;
  }

  /* 通用图片与容器 */
  .page-ban-ca img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-ban-ca__container,
  .page-ban-ca__section,
  .page-ban-ca__card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 按钮与按钮容器 */
  .page-ban-ca__btn-primary,
  .page-ban-ca__btn-secondary,
  .page-ban-ca a[class*="button"],
  .page-ban-ca 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;
  }
  .page-ban-ca__cta-buttons,
  .page-ban-ca__button-group,
  .page-ban-ca__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
    flex-wrap: wrap !important;
    gap: 10px;
  }
  .page-ban-ca__cta-buttons--center {
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 产品展示图区域 / Features Grid */
  .page-ban-ca__features-grid,
  .page-ban-ca__steps-grid,
  .page-ban-ca__strategy-grid,
  .page-ban-ca__promotions-grid,
  .page-ban-ca__game-showcase {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-ban-ca__features-section,
  .page-ban-ca__how-to-play-section,
  .page-ban-ca__game-play-section,
  .page-ban-ca__strategy-section,
  .page-ban-ca__promotions-section,
  .page-ban-ca__faq-section,
  .page-ban-ca__contact-cta-section {
    padding: 40px 0;
  }
  .page-ban-ca__section-title {
    font-size: clamp(1.5rem, 7vw, 2.2rem);
    margin-bottom: 15px;
  }
  .page-ban-ca__section-description,
  .page-ban-ca__article-body {
    font-size: 0.95rem;
    margin-bottom: 30px;
    text-align: left;
    max-width: 100%;
  }
  .page-ban-ca__feature-card,
  .page-ban-ca__step-card,
  .page-ban-ca__strategy-card,
  .page-ban-ca__promo-card,
  .page-ban-ca__game-item {
    padding: 20px;
  }
  .page-ban-ca__feature-image,
  .page-ban-ca__promo-image {
    height: 180px;
    margin-bottom: 15px;
  }
  .page-ban-ca__feature-title,
  .page-ban-ca__step-title,
  .page-ban-ca__strategy-title,
  .page-ban-ca__promo-title,
  .page-ban-ca__game-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
  }
  .page-ban-ca__game-iframe {
    height: 250px;
  }
  
  /* FAQ */
  details.page-ban-ca__faq-item summary.page-ban-ca__faq-question { padding: 15px; }
  .page-ban-ca__faq-qtext { font-size: 1rem; }
  .page-ban-ca__faq-toggle { font-size: 24px; width: 28px; }
  details.page-ban-ca__faq-item .page-ban-ca__faq-answer { padding: 0 15px 15px; }
}