.page-da-ga {
  font-family: Arial, sans-serif;
  color: #F2FFF6;
  background-color: #08160F;
}

.page-da-ga__section {
  padding: 60px 0;
  position: relative;
  z-index: 1;
}

.page-da-ga__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.page-da-ga__text-center {
  text-align: center;
}

.page-da-ga__section-title {
  font-size: 36px;
  font-weight: bold;
  text-align: center;
  margin-bottom: 40px;
  color: #F2FFF6;
  line-height: 1.2;
}

.page-da-ga__section-title--light {
  color: #F2FFF6;
}

.page-da-ga__description {
  font-size: 18px;
  line-height: 1.6;
  text-align: center;
  margin-bottom: 30px;
  color: #A7D9B8;
}

.page-da-ga__description--light {
  color: #A7D9B8;
}

/* Hero Section */
.page-da-ga__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 10px; /* Small top padding, relying on body for header offset */
  padding-bottom: 60px;
  overflow: hidden;
}

.page-da-ga__hero-image {
  width: 100%;
  height: auto;
  position: relative;
  z-index: -1;
  margin-bottom: 40px;
}

.page-da-ga__hero-image img {
  width: 100%;
  height: 675px;
  object-fit: cover;
  display: block;
  border-radius: 8px;
}

.page-da-ga__hero-content {
  max-width: 900px;
  text-align: center;
  padding: 0 15px;
}

.page-da-ga__main-title {
  font-size: 48px;
  font-weight: 700;
  color: #F2FFF6;
  margin-bottom: 20px;
  line-height: 1.2;
}

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

.page-da-ga__btn-primary,
.page-da-ga__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-da-ga__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  border: none;
}

.page-da-ga__btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

.page-da-ga__btn-secondary {
  background: #0A4B2C;
  color: #F2FFF6;
  border: 2px solid #2E7A4E;
}

.page-da-ga__btn-secondary:hover {
  background: #11A84E;
  border-color: #11A84E;
  transform: translateY(-2px);
}

/* Intro Section */
.page-da-ga__intro-section {
  background-color: #08160F;
}

.page-da-ga__content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.page-da-ga__content-grid--reverse {
  grid-template-columns: 1fr 1fr;
}

.page-da-ga__text-block p {
  margin-bottom: 15px;
  font-size: 16px;
  line-height: 1.7;
  color: #A7D9B8;
}

.page-da-ga__image-wrapper {
  text-align: center;
}

.page-da-ga__image-wrapper img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
  margin: 0 auto;
}

/* Why Choose fv99 Section */
.page-da-ga__dark-section {
  background-color: #11271B;
  color: #F2FFF6;
}

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

.page-da-ga__feature-card {
  background: #0A4B2C;
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid #2E7A4E;
}

.page-da-ga__feature-card .page-da-ga__card-title {
  font-size: 22px;
  font-weight: bold;
  color: #F2FFF6;
  margin-bottom: 15px;
}

.page-da-ga__feature-card p {
  font-size: 16px;
  line-height: 1.6;
  color: #A7D9B8;
}

/* Game Types Section */
.page-da-ga__types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-da-ga__type-card {
  background: #11271B;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid #2E7A4E;
  display: flex;
  flex-direction: column;
}

.page-da-ga__type-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-da-ga__type-card .page-da-ga__card-title {
  font-size: 20px;
  font-weight: bold;
  color: #F2FFF6;
  padding: 20px 20px 10px;
}

.page-da-ga__type-card p {
  font-size: 15px;
  line-height: 1.6;
  color: #A7D9B8;
  padding: 0 20px 20px;
  flex-grow: 1;
}

.page-da-ga__btn-learn-more {
  display: inline-block;
  background: #0A4B2C;
  color: #F2FFF6;
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  margin: 0 20px 20px;
  transition: background-color 0.3s ease;
  border: 1px solid #2E7A4E;
}

.page-da-ga__btn-learn-more:hover {
  background: #11A84E;
  border-color: #11A84E;
}

/* How to Play Section */
.page-da-ga__steps-list {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 800px;
}

.page-da-ga__step-item {
  background: #11271B;
  border: 1px solid #2E7A4E;
  border-radius: 10px;
  padding: 25px 30px;
  margin-bottom: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-da-ga__step-item .page-da-ga__step-title {
  font-size: 22px;
  font-weight: bold;
  color: #F2FFF6;
  margin-bottom: 10px;
}

.page-da-ga__step-item p {
  font-size: 16px;
  line-height: 1.6;
  color: #A7D9B8;
  text-align: left;
}

.page-da-ga__cta-buttons--center {
  text-align: center;
  margin-top: 40px;
}

/* Promotions Section */
.page-da-ga__promo-list {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-da-ga__promo-item {
  background: #0A4B2C;
  border: 1px solid #2E7A4E;
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-da-ga__promo-item .page-da-ga__card-title {
  font-size: 22px;
  font-weight: bold;
  color: #F2FFF6;
  margin-bottom: 15px;
}

.page-da-ga__promo-item p {
  font-size: 16px;
  line-height: 1.6;
  color: #A7D9B8;
}

/* Security & Fairness Section */
.page-da-ga__content-grid--reverse {
  grid-template-columns: 1fr 1fr;
}

/* FAQ Section */
.page-da-ga__faq-list {
  max-width: 900px;
  margin: 40px auto 0;
}

details.page-da-ga__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #2E7A4E;
  overflow: hidden;
  background: #11271B;
}

details.page-da-ga__faq-item summary.page-da-ga__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}

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

details.page-da-ga__faq-item summary.page-da-ga__faq-question:hover {
  background: #0A4B2C;
}

.page-da-ga__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #F2FFF6;
}

.page-da-ga__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #57E38D;
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}

details.page-da-ga__faq-item .page-da-ga__faq-answer {
  padding: 0 20px 20px;
  background: #08160F;
  border-radius: 0 0 5px 5px;
}

details.page-da-ga__faq-item .page-da-ga__faq-answer p {
  font-size: 15px;
  line-height: 1.6;
  color: #A7D9B8;
}

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

/* Tablet (max-width: 1024px) */
@media (max-width: 1024px) {
  .page-da-ga__main-title {
    font-size: 42px;
  }

  .page-da-ga__section-title {
    font-size: 32px;
  }

  .page-da-ga__hero-image img {
    height: 500px;
  }

  .page-da-ga__content-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .page-da-ga__content-grid--reverse {
    grid-template-columns: 1fr;
  }

  .page-da-ga__content-grid--reverse .page-da-ga__image-wrapper {
    order: -1;
  }

  .page-da-ga__features-grid,
  .page-da-ga__types-grid,
  .page-da-ga__promo-list {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

/* Mobile (max-width: 768px) */
@media (max-width: 768px) {
  .page-da-ga {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-da-ga__section {
    padding: 40px 0;
  }

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

  /* HERO 主图区域 */
  .page-da-ga__hero-section {
    padding-top: 10px; /* Small top padding */
    padding-bottom: 40px;
  }

  .page-da-ga__hero-image img {
    object-fit: contain !important; /* 禁止 cover 裁切两侧 */
    aspect-ratio: unset !important; /* 取消固定比例 */
    height: auto !important;
    max-height: 250px;
  }

  .page-da-ga__main-title {
    font-size: clamp(28px, 8vw, 36px); /* 标题字号使用 clamp */
    margin-bottom: 15px;
  }

  .page-da-ga__description {
    font-size: 15px;
    margin-bottom: 20px;
  }

  .page-da-ga__section-title {
    font-size: clamp(24px, 7vw, 30px);
    margin-bottom: 30px;
  }

  .page-da-ga__cta-buttons {
    flex-direction: column; /* 移动端垂直排列 */
    gap: 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 15px; /* 确保按钮容器有内边距 */
  }

  /* 按钮与按钮容器 */
  .page-da-ga__btn-primary,
  .page-da-ga__btn-secondary,
  .page-da-ga a[class*="button"],
  .page-da-ga 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: 16px;
  }

  .page-da-ga__cta-buttons,
  .page-da-ga__button-group,
  .page-da-ga__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
    padding-left: 0;
    padding-right: 0;
    gap: 10px; /* 多个按钮横向排列时，允许换行 */
    flex-wrap: wrap !important;
  }

  /* 产品展示图区域 (这里是 .page-da-ga__types-grid) */
  .page-da-ga__types-grid {
    grid-template-columns: 1fr; /* 移动端单列 */
    gap: 20px;
    overflow-x: hidden !important; /* 防横向滚动 */
  }

  .page-da-ga__type-card {
    margin: 0 auto;
    max-width: 350px;
  }

  /* 装饰主标题 + 长文 SEO 区 (这里是 intro-section, security-fairness) */
  .page-da-ga__content-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .page-da-ga__content-grid--reverse .page-da-ga__image-wrapper {
    order: -1;
  }

  .page-da-ga__text-block p {
    font-size: 15px;
  }

  /* 通用图片与容器 */
  .page-da-ga img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    object-fit: cover; /* 默认使用 cover，除非 hero 特殊处理 */
  }

  .page-da-ga__section,
  .page-da-ga__card,
  .page-da-ga__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-da-ga__features-grid,
  .page-da-ga__promo-list {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-da-ga__feature-card,
  .page-da-ga__promo-item,
  .page-da-ga__step-item {
    padding: 20px;
  }

  .page-da-ga__feature-card .page-da-ga__card-title,
  .page-da-ga__promo-item .page-da-ga__card-title,
  .page-da-ga__step-item .page-da-ga__step-title {
    font-size: 20px;
  }

  details.page-da-ga__faq-item summary.page-da-ga__faq-question {
    padding: 15px;
  }

  .page-da-ga__faq-qtext {
    font-size: 15px;
  }

  details.page-da-ga__faq-item .page-da-ga__faq-answer {
    padding: 0 15px 15px;
  }
}