.page-da-ga {
  font-family: 'Arial', sans-serif;
  color: #1F2D3D;
  line-height: 1.6;
  background-color: #F4F7FB;
}

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

.page-da-ga__container--flex {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}

.page-da-ga__hero-section {
  padding-top: 10px;
  padding-bottom: 50px;
  text-align: center;
  background-color: #F4F7FB;
}

.page-da-ga__hero-image-wrap {
  width: 100%;
  max-width: 1200px;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(47, 107, 255, 0.2);
}

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

.page-da-ga__hero-content {
  max-width: 800px;
  margin-top: 30px;
}

.page-da-ga__main-title {
  font-size: clamp(2.2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: #2F6BFF;
  margin-bottom: 15px;
  line-height: 1.2;
  letter-spacing: -0.5px;
}

.page-da-ga__intro-text {
  font-size: 1.15rem;
  color: #1F2D3D;
  margin-bottom: 30px;
}

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

.page-da-ga__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(47, 107, 255, 0.2);
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
  max-width: 100%;
}

.page-da-ga__btn--primary {
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  color: #ffffff;
  border: none;
}

.page-da-ga__btn--primary:hover {
  background: linear-gradient(180deg, #2F6BFF 0%, #4A8BFF 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(47, 107, 255, 0.3);
}

.page-da-ga__btn--secondary {
  background: #ffffff;
  color: #2F6BFF;
  border: 2px solid #2F6BFF;
}

.page-da-ga__btn--secondary:hover {
  background: #E0EFFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(47, 107, 255, 0.1);
}

.page-da-ga__btn--small {
  padding: 10px 20px;
  font-size: 0.9rem;
  border-radius: 6px;
}

.page-da-ga__section {
  padding: 60px 0;
  background-color: #FFFFFF;
  margin-bottom: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.page-da-ga__section--highlight {
  background-color: #F4F7FB;
  box-shadow: none;
}

.page-da-ga__section-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: #000000;
  text-align: center;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 15px;
}

.page-da-ga__section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: #2F6BFF;
  border-radius: 2px;
}

.page-da-ga__text-block {
  font-size: 1.05rem;
  color: #1F2D3D;
  margin-bottom: 20px;
  text-align: justify;
}

.page-da-ga__text-block a {
  color: #2F6BFF;
  text-decoration: none;
  font-weight: 600;
}

.page-da-ga__text-block a:hover {
  text-decoration: underline;
}

.page-da-ga__text-block--note {
  font-style: italic;
  color: #555;
  text-align: center;
  margin-top: 30px;
  border-top: 1px dashed #D6E2FF;
  padding-top: 20px;
}

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

.page-da-ga__info-card {
  background-color: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #D6E2FF;
}

.page-da-ga__info-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.page-da-ga__card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.page-da-ga__card-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: #2F6BFF;
  padding: 20px 25px 10px;
}

.page-da-ga__card-text {
  font-size: 1rem;
  color: #1F2D3D;
  padding: 0 25px 25px;
  text-align: justify;
}

.page-da-ga__section--steps {
  background-color: #F4F7FB;
  box-shadow: none;
}

.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: 12px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  text-align: center;
  border: 1px solid #D6E2FF;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-da-ga__step-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: #000000;
  margin-bottom: 15px;
}

.page-da-ga__step-text {
  font-size: 1rem;
  color: #1F2D3D;
  margin-bottom: 25px;
  text-align: justify;
  flex-grow: 1;
}

.page-da-ga__section--tips {
  background-color: #FFFFFF;
}

.page-da-ga__figure {
  margin: 30px auto;
  max-width: 800px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-da-ga__figure-image {
  width: 100%;
  height: auto;
  display: block;
}

.page-da-ga__figure-caption {
  background-color: #EBF2FF;
  color: #2F6BFF;
  padding: 15px 20px;
  font-size: 0.95rem;
  font-style: italic;
  text-align: center;
}

.page-da-ga__sub-title {
  font-size: 1.6rem;
  font-weight: 600;
  color: #000000;
  margin-top: 35px;
  margin-bottom: 20px;
  padding-left: 10px;
  border-left: 4px solid #2F6BFF;
}

.page-da-ga__section--promo {
  background-color: #F4F7FB;
  box-shadow: none;
}

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

.page-da-ga__promo-box {
  background-color: #FFFFFF;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  text-align: center;
  border: 1px solid #D6E2FF;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-da-ga__promo-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: #2F6BFF;
  margin-bottom: 15px;
}

.page-da-ga__promo-text {
  font-size: 1rem;
  color: #1F2D3D;
  margin-bottom: 25px;
  text-align: justify;
  flex-grow: 1;
}

.page-da-ga__section--faq {
  background-color: #FFFFFF;
}

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

.page-da-ga__faq-item {
  background-color: #F8F9FC;
  border: 1px solid #D6E2FF;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-da-ga__faq-question {
  font-size: 1.15rem;
  font-weight: 600;
  color: #000000;
  padding: 18px 25px;
  cursor: pointer;
  position: relative;
  background-color: #EBF2FF;
  border-bottom: 1px solid #D6E2FF;
}

.page-da-ga__faq-question::after {
  content: '+';
  position: absolute;
  right: 25px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  transition: transform 0.3s ease;
}

.page-da-ga__faq-item.active .page-da-ga__faq-question::after {
  content: '-';
  transform: translateY(-50%) rotate(180deg);
}

.page-da-ga__faq-answer {
  font-size: 1rem;
  color: #1F2D3D;
  padding: 0 25px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out;
  text-align: justify;
}

.page-da-ga__faq-item.active .page-da-ga__faq-answer {
  max-height: 500px; /* Adjust as needed */
  padding-top: 15px;
  padding-bottom: 25px;
}

.page-da-ga__section--conclusion {
  background: linear-gradient(135deg, #F4F7FB 0%, #EBF2FF 100%);
  padding: 80px 0;
  text-align: center;
}

.page-da-ga__conclusion-content {
  max-width: 800px;
  margin-bottom: 40px;
}

.page-da-ga__conclusion-image-wrap {
  width: 100%;
  max-width: 680px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(47, 107, 255, 0.2);
}

.page-da-ga__conclusion-image {
  width: 100%;
  height: auto;
  display: block;
}

.page-da-ga__footer {
  background-color: #2F6BFF;
  padding: 30px 0;
  text-align: center;
}

.page-da-ga__copyright {
  color: #ffffff;
  font-size: 0.9rem;
}

@media (max-width: 1024px) {
  .page-da-ga__main-title {
    font-size: clamp(2rem, 5vw, 2.5rem);
  }

  .page-da-ga__section-title {
    font-size: 2rem;
  }

  .page-da-ga__sub-title {
    font-size: 1.4rem;
  }

  .page-da-ga__grid-layout,
  .page-da-ga__steps-grid,
  .page-da-ga__promo-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
  }

  .page-da-ga__info-card,
  .page-da-ga__step-card,
  .page-da-ga__promo-box {
    padding: 25px;
  }

  .page-da-ga__card-image {
    height: 220px;
  }
}

@media (max-width: 768px) {
  .page-da-ga__container {
    padding: 0 15px !important;
  }

  /* 1. 顶区标题 + 双 CTA */
  .page-da-ga__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px !important;
  }

  .page-da-ga__main-title {
    font-size: clamp(1.8rem, 7vw, 2.2rem) !important;
    margin-top: 20px !important;
  }

  .page-da-ga__intro-text {
    font-size: 1rem !important;
    margin-bottom: 25px !important;
  }

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

  .page-da-ga__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;
  }

  /* 2. 单栏长文容器 */
  .page-da-ga__section {
    padding: 40px 0 !important;
    margin-bottom: 15px !important;
  }

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

  .page-da-ga__text-block {
    font-size: 0.95rem !important;
    margin-bottom: 15px !important;
  }

  .page-da-ga__grid-layout,
  .page-da-ga__steps-grid,
  .page-da-ga__promo-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }

  .page-da-ga__info-card,
  .page-da-ga__step-card,
  .page-da-ga__promo-box {
    padding: 20px !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__hero-image-wrap,
  .page-da-ga__figure,
  .page-da-ga__conclusion-image-wrap {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-da-ga__card-image {
    height: 200px !important;
  }

  .page-da-ga__figure-caption {
    font-size: 0.85rem !important;
    padding: 10px 15px !important;
  }

  /* 4. 按钮与按钮容器 (handled in cta-buttons above and general .page-da-ga__btn) */
  .page-da-ga__btn--small {
    padding: 8px 15px !important;
    font-size: 0.85rem !important;
  }

  /* 5. 注册教程与 FAQ 区块 */
  .page-da-ga__step-title {
    font-size: 1.15rem !important;
  }

  .page-da-ga__step-text {
    font-size: 0.9rem !important;
  }

  .page-da-ga__sub-title {
    font-size: 1.3rem !important;
    margin-top: 30px !important;
    margin-bottom: 15px !important;
  }

  .page-da-ga__promo-title {
    font-size: 1.15rem !important;
  }

  .page-da-ga__promo-text {
    font-size: 0.9rem !important;
  }

  .page-da-ga__faq-question {
    font-size: 1rem !important;
    padding: 15px 20px !important;
  }

  .page-da-ga__faq-question::after {
    right: 20px !important;
    font-size: 1.2rem !important;
  }

  .page-da-ga__faq-answer {
    font-size: 0.95rem !important;
    padding-left: 20px !important;
    padding-right: 20px !important;
  }

  .page-da-ga__faq-item.active .page-da-ga__faq-answer {
    padding-top: 10px !important;
    padding-bottom: 20px !important;
  }

  .page-da-ga__section--conclusion {
    padding: 50px 0 !important;
  }

  .page-da-ga__conclusion-content {
    margin-bottom: 30px !important;
  }

  .page-da-ga__footer {
    padding: 20px 0 !important;
  }

  .page-da-ga__copyright {
    font-size: 0.8rem !important;
  }

  .page-da-ga__container--flex {
    gap: 20px !important;
  }
}