.page-da-ga {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #FFF5E1; /* Text Main */
  background-color: #B71C1C; /* Background */
}

.page-da-ga__section {
  padding: 60px 0;
}

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

.page-da-ga__section-title {
  font-size: 36px;
  font-weight: 700;
  color: #F4D34D; /* Gold */
  text-align: center;
  margin-bottom: 40px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.page-da-ga__sub-title {
  font-size: 24px;
  font-weight: 600;
  color: #FFD86A; /* Lighter gold for sub-titles */
  margin-top: 30px;
  margin-bottom: 15px;
}

.page-da-ga__list-title {
  font-size: 20px;
  font-weight: 600;
  color: #FFD86A; /* Lighter gold for list titles */
  margin-bottom: 10px;
}

.page-da-ga__text-block p {
  margin-bottom: 15px;
  font-size: 17px;
  line-height: 1.7;
  color: #FFF5E1;
}

.page-da-ga__text-block strong {
  color: #FFD86A;
}

.page-da-ga__hero-section {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding-top: 10px; /* Small top padding as per instruction */
  background-color: #7A0E0E;
}

.page-da-ga__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.page-da-ga__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.5;
}

.page-da-ga__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 80px 20px;
  box-sizing: border-box;
}

.page-da-ga__main-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  color: #FFD86A; /* Lighter gold for main title */
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.7);
}

.page-da-ga__hero-description {
  font-size: 20px;
  color: #FFF5E1;
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-da-ga__btn-primary,
.page-da-ga__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  transition: all 0.3s ease;
  text-align: center;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-da-ga__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%); /* Button custom color */
  color: #7A0E0E; /* Deep Red for contrast */
  border: 2px solid #F2B544; /* Border custom color */
}

.page-da-ga__btn-primary:hover {
  background: linear-gradient(180deg, #E6B800 0%, #FFD86A 100%);
  box-shadow: 0 0 15px #FFCC66; /* Glow custom color */
}

.page-da-ga__btn-secondary {
  background: #7A0E0E; /* Deep Red */
  color: #FFD86A;
  border: 2px solid #FFD86A;
}

.page-da-ga__btn-secondary:hover {
  background: #FFD86A;
  color: #7A0E0E;
  border-color: #7A0E0E;
}

.page-da-ga__btn-primary--full-width {
  width: 100%;
  max-width: 400px; /* Limit max width for full-width button */
  margin-top: 20px;
}

.page-da-ga__btn-primary--large {
  padding: 18px 40px;
  font-size: 20px;
  margin-top: 30px;
}

.page-da-ga__content-wrapper {
  display: flex;
  align-items: flex-start;
  gap: 40px;
}

.page-da-ga__content-wrapper--reverse {
  flex-direction: row-reverse;
}

.page-da-ga__text-block {
  flex: 1;
}

.page-da-ga__image-block {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-da-ga__image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  border: 2px solid #F2B544;
}

.page-da-ga__feature-list,
.page-da-ga__guide-list,
.page-da-ga__tips-list,
.page-da-ga__promo-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-da-ga__feature-item,
.page-da-ga__promo-item {
  background-color: #D32F2F; /* Card BG */
  border: 1px solid #F2B544; /* Border */
  border-radius: 10px;
  padding: 25px;
  margin-bottom: 20px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: #FFF5E1;
}

.page-da-ga__feature-item p,
.page-da-ga__promo-item p {
  font-size: 16px;
  color: #FFF5E1;
}

.page-da-ga__guide-list li,
.page-da-ga__tips-list li {
  margin-bottom: 20px;
  padding-left: 30px;
  position: relative;
  font-size: 17px;
  color: #FFF5E1;
}

.page-da-ga__guide-list li::before {
  content: counter(item);
  counter-increment: item;
  position: absolute;
  left: 0;
  top: 0;
  background: #FFD86A;
  color: #7A0E0E;
  width: 25px;
  height: 25px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
  font-size: 14px;
}

.page-da-ga__tips-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: #FFD86A;
  font-weight: bold;
  font-size: 20px;
}

.page-da-ga__dark-section {
  background-color: #7A0E0E; /* Deep Red */
  color: #FFF5E1;
}

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

.page-da-ga__channel-item {
  text-align: center;
  background-color: #D32F2F; /* Card BG */
  border: 1px solid #F2B544; /* Border */
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: #FFF5E1;
}

.page-da-ga__channel-item .page-da-ga__list-title {
  margin-bottom: 15px;
  color: #FFD86A;
}

.page-da-ga__channel-item p {
  font-size: 16px;
  margin-bottom: 20px;
  color: #FFF5E1;
}

.page-da-ga__faq-list {
  margin-top: 40px;
}

details.page-da-ga__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #F2B544; /* Border custom color */
  overflow: hidden;
  background: #D32F2F; /* Card BG */
  color: #FFF5E1;
}

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;
  color: #FFD86A;
  font-weight: 600;
}

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: #B71C1C;
}

.page-da-ga__faq-qtext {
  flex: 1;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
}

.page-da-ga__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #F4D34D; /* Gold */
  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: #B71C1C; /* Background */
  border-radius: 0 0 5px 5px;
  color: #FFF5E1;
}

.page-da-ga__faq-answer p {
  font-size: 16px;
  color: #FFF5E1;
}

/* Mobile Responsive Styles */
@media (max-width: 1024px) {
  .page-da-ga__section-title {
    font-size: 30px;
  }
  .page-da-ga__main-title {
    font-size: clamp(28px, 4.5vw, 48px);
  }
  .page-da-ga__hero-description {
    font-size: 18px;
  }
  .page-da-ga__btn-primary,
  .page-da-ga__btn-secondary {
    padding: 12px 25px;
    font-size: 16px;
  }
  .page-da-ga__content-wrapper {
    flex-direction: column;
    align-items: center;
  }
  .page-da-ga__content-wrapper--reverse {
    flex-direction: column;
  }
  .page-da-ga__text-block,
  .page-da-ga__image-block {
    flex: none;
    width: 100%;
  }
  .page-da-ga__image {
    max-width: 80%;
    margin-top: 20px;
  }
}

@media (max-width: 768px) {
  .page-da-ga__hero-section {
    padding-top: 10px;
  }
  .page-da-ga__hero-image-wrapper {
    position: relative;
    height: 250px;
    width: 100%;
    margin-bottom: 20px;
  }
  .page-da-ga__hero-image {
    object-fit: contain !important; /* HERO 主图区域 */
    aspect-ratio: unset !important;
    width: 100% !important;
    height: 100% !important;
    opacity: 0.7;
  }
  .page-da-ga__hero-content {
    padding: 30px 15px;
  }
  .page-da-ga__main-title {
    font-size: clamp(28px, 8vw, 36px);
    margin-bottom: 15px;
  }
  .page-da-ga__hero-description {
    font-size: 16px;
    margin-bottom: 25px;
  }
  .page-da-ga__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 15px;
  }
  .page-da-ga__btn-primary,
  .page-da-ga__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 15px;
    font-size: 16px;
  }
  .page-da-ga__btn-primary--full-width {
    max-width: 100% !important;
  }
  .page-da-ga__btn-primary--large {
    font-size: 18px;
    padding: 15px 20px;
  }

  .page-da-ga__section {
    padding: 40px 0;
  }
  .page-da-ga__container {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-da-ga__section-title {
    font-size: 26px;
    margin-bottom: 30px;
  }
  .page-da-ga__sub-title {
    font-size: 20px;
  }
  .page-da-ga__list-title {
    font-size: 18px;
  }
  .page-da-ga__text-block p {
    font-size: 15px;
  }
  .page-da-ga__image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    margin-top: 20px;
  }
  .page-da-ga__feature-item,
  .page-da-ga__promo-item,
  .page-da-ga__channel-item {
    padding: 20px;
  }
  .page-da-ga__support-channels {
    grid-template-columns: 1fr;
    gap: 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;
  }
  .page-da-ga__faq-answer p {
    font-size: 14px;
  }
}