.page-download {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light background */
  background-color: #ffffff; /* Body background is light */
}

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

.page-download__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 10px; /* Small top padding, body handles header offset */
  padding-bottom: 40px;
  text-align: center;
  background-color: #017439;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.page-download__hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin-bottom: 30px;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-download__main-title {
  font-size: 2.8em;
  font-weight: bold;
  margin-bottom: 15px;
  line-height: 1.2;
  color: #ffffff;
}

.page-download__description {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: #f0f0f0;
}

.page-download__cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  box-sizing: border-box;
}

.page-download__btn-primary,
.page-download__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: bold;
  text-decoration: none;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-download__btn-primary {
  background-color: #C30808; /* Register/Login color */
  color: #FFFF00; /* Register/Login font color */
  border: 2px solid #C30808;
}

.page-download__btn-primary:hover {
  background-color: #e02a2a;
  border-color: #e02a2a;
}

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

.page-download__btn-secondary:hover {
  background-color: #f0f0f0;
  color: #005a2e;
  border-color: #005a2e;
}

.page-download__hero-image-wrap {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1200px;
  margin-top: 20px;
  box-sizing: border-box;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
}

.page-download__section {
  padding: 60px 0;
  box-sizing: border-box;
}

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

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

.page-download__section-title {
  font-size: 2.2em;
  font-weight: bold;
  margin-bottom: 30px;
  text-align: center;
  color: inherit;
}

.page-download__paragraph {
  font-size: 1.05em;
  margin-bottom: 25px;
  text-align: justify;
  color: inherit;
}

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

.page-download__feature-item {
  background-color: #f9f9f9;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  color: #333333;
}

.page-download__dark-bg .page-download__feature-item {
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.page-download__feature-title {
  font-size: 1.4em;
  font-weight: bold;
  margin-bottom: 15px;
  color: #017439;
}

.page-download__dark-bg .page-download__feature-title {
  color: #FFFF00; /* Yellow for titles on dark background */
}

.page-download__image-figure {
  margin: 40px auto;
  max-width: 1000px;
  text-align: center;
  box-sizing: border-box;
}

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

.page-download__image-caption {
  font-size: 0.9em;
  color: #666666;
  margin-top: 10px;
}

.page-download__dark-bg .page-download__image-caption {
  color: #cccccc;
}

.page-download__download-guide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 30px;
}

.page-download__guide-item {
  background-color: #f9f9f9;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  color: #333333;
}

.page-download__dark-bg .page-download__guide-item {
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.page-download__guide-title {
  font-size: 1.5em;
  font-weight: bold;
  margin-bottom: 20px;
  color: #017439;
}

.page-download__dark-bg .page-download__guide-title {
  color: #FFFF00;
}

.page-download__guide-steps {
  list-style: decimal;
  padding-left: 20px;
  margin-bottom: 20px;
}

.page-download__guide-steps li {
  margin-bottom: 10px;
}

.page-download__action-area {
  text-align: center;
  margin-top: 40px;
}

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

.page-download__card {
  background-color: #ffffff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  color: #333333;
  border: 1px solid #e0e0e0;
}

.page-download__dark-bg .page-download__card {
  background-color: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.2);
}

.page-download__card-title {
  font-size: 1.3em;
  font-weight: bold;
  margin-bottom: 15px;
  color: #017439;
}

.page-download__dark-bg .page-download__card-title {
  color: #FFFF00;
}

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

.page-download__feature-card {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  color: #ffffff;
}

.page-download__feature-card .page-download__card-title {
  color: #FFFF00;
}

.page-download__faq-list {
  margin-top: 30px;
}

.page-download__faq-item {
  margin-bottom: 15px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  overflow: hidden;
  color: #333333;
}

.page-download__faq-question {
  background-color: #f5f5f5;
  padding: 18px 25px;
  font-size: 1.1em;
  font-weight: bold;
  cursor: pointer;
  display: block;
  color: #017439;
}

.page-download__faq-answer {
  padding: 15px 25px;
  background-color: #ffffff;
  border-top: 1px solid #e0e0e0;
  font-size: 1em;
  color: #333333;
}

.page-download__final-cta {
  padding-top: 40px;
  padding-bottom: 60px;
  background-color: #017439;
  color: #ffffff;
}

.page-download__final-cta .page-download__section-title,
.page-download__final-cta .page-download__paragraph {
  color: #ffffff;
}

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

/* Tablets and smaller desktops */
@media (max-width: 1024px) {
  .page-download__main-title {
    font-size: 2.5em;
  }

  .page-download__section-title {
    font-size: 2em;
  }

  .page-download__download-guide {
    grid-template-columns: 1fr;
  }

  .page-download__feature-list,
  .page-download__step-cards,
  .page-download__feature-grid {
    gap: 20px;
  }
}

/* Mobile devices */
@media (max-width: 768px) {
  /* 1. 顶区标题 + 双 CTA */
  .page-download__hero-section {
    padding-top: 10px !important;
    padding-bottom: 30px;
  }

  .page-download__main-title {
    font-size: clamp(1.8em, 7vw, 2.2em) !important;
    margin-bottom: 10px !important;
  }

  .page-download__description {
    font-size: 1em !important;
    margin-bottom: 20px !important;
  }

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

  .page-download__btn-primary,
  .page-download__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 12px 20px !important;
    font-size: 1em !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

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

  .page-download__section-title {
    font-size: 1.8em !important;
    margin-bottom: 20px !important;
  }

  .page-download__paragraph {
    font-size: 1em !important;
    margin-bottom: 15px !important;
  }

  .page-download__feature-list,
  .page-download__step-cards,
  .page-download__feature-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }

  .page-download__feature-item,
  .page-download__card,
  .page-download__feature-card,
  .page-download__guide-item {
    padding: 20px !important;
  }

  .page-download__feature-title,
  .page-download__guide-title,
  .page-download__card-title {
    font-size: 1.2em !important;
    margin-bottom: 10px !important;
  }

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

  .page-download__hero-image-wrap,
  .page-download__image-figure {
    margin: 20px auto !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-download__image-caption {
    font-size: 0.85em !important;
  }

  /* 4. 按钮与按钮容器 (already covered in cta-buttons) */
  .page-download__action-area {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* 5. 注册教程与 FAQ 区块 */
  .page-download__guide-steps {
    padding-left: 15px !important;
  }

  .page-download__guide-steps li {
    font-size: 0.95em !important;
    margin-bottom: 8px !important;
  }

  .page-download__faq-question {
    font-size: 1em !important;
    padding: 15px 20px !important;
  }

  .page-download__faq-answer {
    font-size: 0.95em !important;
    padding: 12px 20px !important;
  }

  .page-download__section {
    padding: 40px 0 !important;
  }

  .page-download__final-cta {
    padding-top: 30px !important;
    padding-bottom: 40px !important;
  }
}