.page-da-ga {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light body background */
  background-color: var(--secondary-color); /* Matches body background */
}

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

.page-da-ga__top-section {
  background-color: #017439; /* Primary color as background */
  color: #ffffff;
  padding: 10px 0 40px;
  text-align: center;
}

.page-da-ga__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 15px;
  color: #ffffff;
}

.page-da-ga__description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #f0f0f0;
}

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

.page-da-ga__btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-da-ga__btn--register {
  background-color: #C30808; /* Custom register color */
  color: #FFFF00; /* Custom register font color */
  border: 2px solid #C30808;
}

.page-da-ga__btn--register:hover {
  background-color: #a30606;
  border-color: #a30606;
}

.page-da-ga__btn--login {
  background-color: #C30808; /* Custom login color */
  color: #FFFF00; /* Custom login font color */
  border: 2px solid #C30808;
}

.page-da-ga__btn--login:hover {
  background-color: #a30606;
  border-color: #a30606;
}

.page-da-ga__hero-image-section {
  padding: 0;
  background-color: #f5f5f5;
}

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

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

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

.page-da-ga__light-bg {
  background-color: #ffffff;
  color: #333333;
}

.page-da-ga__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 30px;
  text-align: center;
  color: inherit;
}

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

.page-da-ga__sub-title {
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  font-weight: 600;
  margin-top: 40px;
  margin-bottom: 20px;
  color: inherit;
}

.page-da-ga__text-block {
  font-size: 1.1rem;
  margin-bottom: 20px;
  line-height: 1.7;
  color: inherit;
}

.page-da-ga__highlight {
  color: #017439;
  font-weight: 600;
}

.page-da-ga__dark-bg .page-da-ga__highlight {
  color: #FFFF00; /* Highlight in dark sections */
}

.page-da-ga__brand-name {
  font-weight: 700;
  color: #017439;
}

.page-da-ga__dark-bg .page-da-ga__brand-name {
  color: #FFFF00;
}

.page-da-ga__figure {
  margin: 30px 0;
  text-align: center;
}

.page-da-ga__image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-da-ga__figcaption {
  font-size: 0.95rem;
  color: #666666;
  margin-top: 10px;
  font-style: italic;
}

.page-da-ga__dark-bg .page-da-ga__figcaption {
  color: #cccccc;
}

.page-da-ga__list {
  list-style: disc inside;
  margin-bottom: 20px;
  padding-left: 20px;
  font-size: 1.1rem;
  color: inherit;
}

.page-da-ga__list li {
  margin-bottom: 10px;
}

.page-da-ga__link {
  color: #017439;
  text-decoration: underline;
  font-weight: 600;
}

.page-da-ga__dark-bg .page-da-ga__link {
  color: #FFFF00;
}

.page-da-ga__btn--primary {
  background-color: #017439;
  color: #ffffff;
  border: 2px solid #017439;
  margin-top: 30px;
  display: block;
  max-width: 300px;
  margin-left: auto;
  margin-right: auto;
}

.page-da-ga__btn--primary:hover {
  background-color: #005f2c;
  border-color: #005f2c;
}

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

.page-da-ga__card {
  background-color: #ffffff;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: #333333;
  border: 1px solid #e0e0e0;
}

.page-da-ga__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.page-da-ga__card-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: #017439;
}

.page-da-ga__card-text {
  font-size: 1rem;
  line-height: 1.6;
  color: #555555;
}

.page-da-ga__btn--secondary {
  background-color: #ffffff;
  color: #017439;
  border: 2px solid #017439;
  margin-top: 30px;
  display: block;
  max-width: 300px;
  margin-left: auto;
  margin-right: auto;
}

.page-da-ga__btn--secondary:hover {
  background-color: #f0f0f0;
  color: #005f2c;
}

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

.page-da-ga__step-item {
  text-align: center;
}

.page-da-ga__step-item .page-da-ga__image {
  margin-bottom: 20px;
}

.page-da-ga__step-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: #017439;
}

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

.page-da-ga__faq-list {
  margin-top: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-da-ga__faq-item {
  background-color: #005f2c; /* Slightly darker green for FAQ items */
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: #ffffff;
}

.page-da-ga__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  color: #ffffff;
  position: relative;
}

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

.page-da-ga__faq-toggle {
  font-size: 1.5rem;
  font-weight: 700;
  color: #FFFF00;
  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: 0 25px 20px;
  font-size: 1rem;
  line-height: 1.6;
  color: #f0f0f0;
}

.page-da-ga__faq-answer p {
  margin-bottom: 0;
}

.page-da-ga__promo-box {
  background-color: #f5f5f5;
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.page-da-ga__promo-box .page-da-ga__section-title {
  color: #017439;
  margin-bottom: 25px;
}

.page-da-ga__promo-box .page-da-ga__text-block {
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 30px;
}

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

.page-da-ga__cta-buttons .page-da-ga__btn {
  min-width: 200px;
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
  .page-da-ga__main-title {
    font-size: clamp(2rem, 4.5vw, 3.2rem);
  }
  .page-da-ga__description {
    font-size: clamp(0.95rem, 2.2vw, 1.2rem);
  }
  .page-da-ga__section-title {
    font-size: clamp(1.6rem, 3.8vw, 2.5rem);
  }
  .page-da-ga__sub-title {
    font-size: clamp(1.3rem, 3vw, 1.8rem);
  }
  .page-da-ga__card-title {
    font-size: 1.3rem;
  }
  .page-da-ga__step-title {
    font-size: 1.4rem;
  }
}

@media (max-width: 768px) {
  /* 1. 顶区标题 + 双 CTA */
  .page-da-ga__top-section {
    padding: 10px 0 30px !important; /* Small top padding */
  }
  .page-da-ga__main-title {
    font-size: 2.2rem !important;
    padding: 0 15px;
  }
  .page-da-ga__description {
    font-size: 1rem !important;
    padding: 0 15px;
  }
  .page-da-ga__top-cta {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }
  .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;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 2. 单栏长文容器 */
  .page-da-ga__container {
    padding: 0 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-da-ga__section {
    padding: 40px 0 !important;
  }
  .page-da-ga__section-title {
    font-size: 1.8rem !important;
  }
  .page-da-ga__sub-title {
    font-size: 1.4rem !important;
  }
  .page-da-ga__text-block,
  .page-da-ga__list {
    font-size: 1rem !important;
  }

  /* 3. 通用图片与 figure */
  .page-da-ga img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-da-ga__figure {
    margin: 20px 0 !important;
  }
  .page-da-ga__figcaption {
    font-size: 0.85rem !important;
    padding: 0 10px;
  }

  /* 4. 按钮与按钮容器 */
  .page-da-ga__btn--primary,
  .page-da-ga__btn--secondary {
    width: 100% !important;
    max-width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }
  .page-da-ga__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-da-ga__cta-buttons .page-da-ga__btn {
    min-width: unset;
  }

  /* 5. 注册教程与 FAQ 区块 */
  .page-da-ga__step-by-step {
    grid-template-columns: 1fr !important;
    gap: 30px !important;
  }
  .page-da-ga__step-title {
    font-size: 1.3rem !important;
  }
  .page-da-ga__faq-item {
    margin-bottom: 10px !important;
  }
  .page-da-ga__faq-question {
    font-size: 1rem !important;
    padding: 15px 20px !important;
  }
  .page-da-ga__faq-toggle {
    font-size: 1.2rem !important;
  }
  .page-da-ga__faq-answer {
    padding: 0 20px 15px !important;
  }
  .page-da-ga__card {
    padding: 25px !important;
  }
  .page-da-ga__card-title {
    font-size: 1.2rem !important;
  }
  .page-da-ga__card-text {
    font-size: 0.95rem !important;
  }
  .page-da-ga__promo-box {
    padding: 30px 15px !important;
  }
  .page-da-ga__promo-box .page-da-ga__text-block {
    font-size: 1rem !important;
  }
}