.page-da-ga {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333;
  background-color: #FFFFFF;
}

.page-da-ga__hero-section {
  position: relative;
  width: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 10px; /* Rely on body padding-top for header offset */
}

.page-da-ga__hero-image-wrap {
  width: 100%;
  max-height: 600px;
  overflow: hidden;
}

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

.page-da-ga__hero-content {
  text-align: center;
  padding: 40px 20px;
  background-color: #017439;
  color: #ffffff;
  width: 100%;
  box-sizing: border-box;
}

.page-da-ga__main-title {
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 15px;
  color: #FFFF00; /* Register/Login font color */
}

.page-da-ga__tagline {
  font-size: 1.1em;
  margin-bottom: 30px;
}

.page-da-ga__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-da-ga__btn {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.2s 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: #C30808; /* Register/Login button color */
  color: #FFFF00; /* Register/Login font color */
  border: 2px solid #C30808;
}

.page-da-ga__btn-primary:hover {
  background-color: #e00b0b;
  transform: translateY(-2px);
}

.page-da-ga__btn-secondary {
  background-color: #ffffff;
  color: #017439;
  border: 2px solid #017439;
}

.page-da-ga__btn-secondary:hover {
  background-color: #f0f0f0;
  transform: translateY(-2px);
}

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

.page-da-ga__article-wrap {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-da-ga__section-title {
  font-size: 2.5em;
  font-weight: bold;
  text-align: center;
  margin-bottom: 40px;
  color: #017439;
}

.page-da-ga__section-title--white {
  color: #ffffff;
}

.page-da-ga__sub-title {
  font-size: 1.8em;
  font-weight: bold;
  margin-top: 30px;
  margin-bottom: 15px;
  color: #017439;
}

.page-da-ga__sub-title--white {
  color: #ffffff;
}

.page-da-ga__text-block {
  font-size: 1.1em;
  margin-bottom: 20px;
  color: #333333;
}

.page-da-ga__text-block--white {
  color: #ffffff;
}

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

.page-da-ga__list-item {
  margin-bottom: 10px;
  font-size: 1.1em;
  color: #333333;
}

.page-da-ga__list-item strong {
  color: #017439;
}

.page-da-ga__dark-bg {
  background-color: #017439;
}

.page-da-ga__light-bg {
  background-color: #ffffff;
}

.page-da-ga__cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.page-da-ga__card {
  background-color: #ffffff;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  color: #333333;
}

.page-da-ga__card--bordered {
  border: 1px solid #e0e0e0;
}

.page-da-ga__card-title {
  font-size: 1.5em;
  font-weight: bold;
  margin-bottom: 15px;
  color: #017439;
}

.page-da-ga__card-text {
  font-size: 1em;
  line-height: 1.5;
}

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

.page-da-ga__step-card {
  background-color: #ffffff;
  border-radius: 10px;
  padding: 25px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  color: #333333;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-da-ga__step-figure {
  margin: 0 0 20px 0;
  width: 100%;
  max-width: 680px;
}

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

.page-da-ga__step-caption {
  font-style: italic;
  font-size: 0.9em;
  color: #666666;
  margin-top: 10px;
}

.page-da-ga__step-title {
  font-size: 1.6em;
  font-weight: bold;
  margin-bottom: 15px;
  color: #017439;
}

.page-da-ga__step-text {
  font-size: 1em;
  line-height: 1.5;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-da-ga__btn--small {
  padding: 10px 20px;
  font-size: 0.9em;
}

.page-da-ga__figure {
  margin: 30px auto;
  max-width: 800px;
  text-align: center;
}

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

.page-da-ga__figure-caption {
  font-style: italic;
  font-size: 0.9em;
  color: #666666;
  margin-top: 10px;
}

.page-da-ga__figure-caption--white {
  color: #f0f0f0;
}

.page-da-ga__promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.page-da-ga__promo-card {
  background-color: rgba(255, 255, 255, 0.95);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  color: #333333;
}

.page-da-ga__promo-title {
  font-size: 1.4em;
  font-weight: bold;
  margin-bottom: 10px;
  color: #017439;
}

.page-da-ga__promo-text {
  font-size: 1em;
  line-height: 1.5;
}

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

.page-da-ga__btn--large {
  padding: 15px 35px;
  font-size: 1.1em;
}

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

  /* 1. 顶区标题 + 双 CTA */
  .page-da-ga__hero-section {
    padding-top: 10px !important; /* Ensure minimal top padding */
  }

  .page-da-ga__hero-content {
    padding: 30px 15px;
  }

  .page-da-ga__main-title {
    font-size: clamp(1.8em, 6vw, 2.5em); /* Use clamp for H1 font size */
  }

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

  .page-da-ga__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
    width: 100%;
    box-sizing: border-box;
  }

  .page-da-ga__btn {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 2. 单栏长文容器 */
  .page-da-ga__article-wrap {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

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

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

  .page-da-ga__sub-title {
    font-size: 1.5em;
    margin-top: 20px;
  }

  .page-da-ga__text-block,
  .page-da-ga__list-item,
  .page-da-ga__card-text,
  .page-da-ga__step-text,
  .page-da-ga__promo-text {
    font-size: 0.95em;
  }

  /* 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,
  .page-da-ga__step-figure {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* 4. 按钮与按钮容器 */
  .page-da-ga__cta-buttons,
  .page-da-ga__cta-center {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-da-ga__btn--large {
    font-size: 1em;
    padding: 12px 25px;
  }

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

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

  /* 5. 注册教程与 FAQ 区块 (steps-grid is the registration tutorial) */
  .page-da-ga__step-title {
    font-size: 1.4em;
  }

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

  .page-da-ga__list {
    padding-left: 15px;
  }

  .page-da-ga__list-item {
    font-size: 1em;
  }
}