.page-da-ga {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light background */
  background-color: #FFFFFF; /* Body background from shared.css is var(--secondary-color) which is #FFFFFF */
}

.page-da-ga__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-bottom: 40px;
  background-color: #26A9E0; /* Brand primary color for hero background */
  color: #ffffff;
}

.page-da-ga__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

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

.page-da-ga__hero-content {
  padding: 30px 20px;
  max-width: 900px;
  background-color: #ffffff;
  color: #333333;
  border-radius: 8px;
  margin-top: -80px; /* Overlap with image slightly for design effect */
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-da-ga__main-title {
  font-size: clamp(2.2rem, 3.5vw, 2.8rem); /* Responsive font size */
  font-weight: 700;
  line-height: 1.2;
  color: #26A9E0;
  margin-bottom: 20px;
}

.page-da-ga__hero-description {
  font-size: 1.1em;
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.page-da-ga__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-da-ga__btn {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-da-ga__btn-primary {
  background-color: #26A9E0;
  color: #ffffff;
  border: 2px solid #26A9E0;
}

.page-da-ga__btn-primary:hover {
  background-color: #1e87c0;
  border-color: #1e87c0;
}

.page-da-ga__btn-secondary {
  background-color: #ffffff;
  color: #26A9E0;
  border: 2px solid #26A9E0;
}

.page-da-ga__btn-secondary:hover {
  background-color: #f0f0f0;
  color: #1e87c0;
}

.page-da-ga__btn-light {
  background-color: #ffffff;
  color: #26A9E0;
  border: 2px solid #ffffff;
}

.page-da-ga__btn-light:hover {
  background-color: #f0f0f0;
  color: #26A9E0;
}

.page-da-ga__mb-20 {
  margin-bottom: 20px;
}

.page-da-ga__content-area {
  padding: 40px 0;
  background-color: #ffffff;
  color: #333333;
}

.page-da-ga__article-wrap {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-da-ga__section-title {
  font-size: 2.2em;
  color: #26A9E0;
  text-align: center;
  margin-bottom: 30px;
  margin-top: 40px;
  font-weight: 700;
}

.page-da-ga__sub-title {
  font-size: 1.6em;
  color: #EA7C07; /* Login color for sub-titles */
  margin-top: 30px;
  margin-bottom: 15px;
  font-weight: 600;
}

.page-da-ga p {
  margin-bottom: 15px;
  font-size: 1.05em;
  line-height: 1.7;
}

.page-da-ga__list {
  list-style: disc;
  margin-left: 25px;
  margin-bottom: 20px;
}

.page-da-ga__list-item {
  margin-bottom: 10px;
  line-height: 1.6;
}

.page-da-ga__figure {
  margin: 30px auto;
  max-width: 680px;
  text-align: center;
  box-sizing: border-box;
  overflow: hidden;
}

.page-da-ga__image {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  margin: 0 auto;
}

.page-da-ga__figcaption {
  font-style: italic;
  font-size: 0.9em;
  color: #555555;
  margin-top: 10px;
}

.page-da-ga__promo-box {
  padding: 30px;
  border-radius: 8px;
  margin: 40px 0;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-da-ga__promo-box.page-da-ga__dark-bg {
  background-color: #26A9E0;
  color: #ffffff;
}

.page-da-ga__promo-box.page-da-ga__light-bg {
  background-color: #f8f8f8;
  color: #333333;
  border: 1px solid #e0e0e0;
}

.page-da-ga__promo-title {
  font-size: 1.8em;
  margin-bottom: 15px;
  font-weight: 700;
}

.page-da-ga__promo-description {
  font-size: 1.1em;
  margin-bottom: 25px;
}

.page-da-ga__faq-list {
  margin-top: 30px;
  margin-bottom: 40px;
}

.page-da-ga__faq-item {
  background-color: #f8f8f8;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-da-ga__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  font-weight: bold;
  font-size: 1.1em;
  color: #26A9E0;
  cursor: pointer;
  background-color: #eaf7fd; /* Lighter shade of primary */
  list-style: none;
}

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

.page-da-ga__faq-qtext {
  flex-grow: 1;
}

.page-da-ga__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 10px;
  transition: transform 0.3s ease;
}

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

.page-da-ga__faq-answer {
  padding: 15px 20px;
  background-color: #ffffff;
  color: #333333;
  border-top: 1px solid #e0e0e0;
}

.page-da-ga__final-cta {
  text-align: center;
  margin-top: 50px;
  margin-bottom: 30px;
}

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

@media (max-width: 1024px) {
  .page-da-ga__hero-content {
    margin-top: -60px;
    padding: 25px 15px;
  }

  .page-da-ga__main-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
  }

  .page-da-ga__hero-description {
    font-size: 1em;
  }

  .page-da-ga__article-wrap {
    padding: 0 15px;
  }

  .page-da-ga__section-title {
    font-size: 1.8em;
    margin-top: 30px;
    margin-bottom: 25px;
  }

  .page-da-ga__sub-title {
    font-size: 1.4em;
    margin-top: 25px;
    margin-bottom: 12px;
  }

  .page-da-ga p,
  .page-da-ga__list-item {
    font-size: 0.95em;
  }

  .page-da-ga__promo-title {
    font-size: 1.6em;
  }

  .page-da-ga__promo-description {
    font-size: 1em;
  }
}

@media (max-width: 768px) {
  /* 1. 顶区标题 + 双 CTA */
  .page-da-ga__hero-section {
    padding-top: 10px !important; /* Fixed header spacing */
    padding-bottom: 20px;
  }

  .page-da-ga__hero-content {
    margin-top: -40px;
    padding: 20px 15px;
    width: calc(100% - 30px); /* Adjust for padding on sides */
    box-sizing: border-box;
  }

  .page-da-ga__main-title {
    font-size: clamp(1.8rem, 6vw, 2.2rem) !important;
    margin-bottom: 15px;
  }

  .page-da-ga__hero-description {
    font-size: 0.95em;
    margin-bottom: 20px;
  }

  .page-da-ga__cta-buttons {
    flex-direction: column !important; /* Stack buttons vertically */
    gap: 10px;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 4. 按钮与按钮容器 */
  .page-da-ga__btn,
  .page-da-ga__btn-primary,
  .page-da-ga__btn-secondary,
  .page-da-ga__btn-light,
  .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-left: 15px !important;
    padding-right: 15px !important;
  }

  .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;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }

  /* 2. 单栏长文容器 */
  .page-da-ga__content-area {
    padding: 20px 0;
  }

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

  .page-da-ga__section-title {
    font-size: 1.6em;
    margin-top: 25px;
    margin-bottom: 20px;
  }

  .page-da-ga__sub-title {
    font-size: 1.3em;
    margin-top: 20px;
    margin-bottom: 10px;
  }

  .page-da-ga p,
  .page-da-ga__list-item,
  .page-da-ga__hero-description,
  .page-da-ga__promo-description {
    font-size: 15px;
    line-height: 1.6;
  }

  .page-da-ga__list {
    margin-left: 20px;
  }

  .page-da-ga__promo-box {
    padding: 20px;
    margin: 30px 0;
  }

  .page-da-ga__promo-title {
    font-size: 1.5em;
    margin-bottom: 10px;
  }

  /* 3. 通用图片与 figure */
  .page-da-ga img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-da-ga__figure {
    margin: 20px auto;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
  }

  .page-da-ga__figcaption {
    font-size: 0.85em;
  }

  /* 5. Đăng ký tài khoản MB66 (as a step-by-step tutorial) and FAQ Block */
  .page-da-ga__faq-list {
    margin-top: 20px;
    margin-bottom: 30px;
  }
  .page-da-ga__faq-item {
    margin-bottom: 10px;
  }

  .page-da-ga__faq-question {
    padding: 12px 15px;
    font-size: 1em;
  }

  .page-da-ga__faq-answer {
    padding: 12px 15px;
  }

  .page-da-ga__final-cta {
    margin-top: 40px;
    margin-bottom: 20px;
    padding-left: 15px;
    padding-right: 15px;
  }
}