.page-download {
  color: #333333; /* Default text color for light body background */
}

.page-download__hero-section {
  background-color: #000000; /* Primary color for hero background */
  color: #FFFFFF;
  padding-top: var(--header-offset, 120px); /* Ensures content is below fixed header */
  padding-bottom: 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-download__hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.page-download__hero-title {
  font-size: 3.2em;
  margin-bottom: 20px;
  font-weight: bold;
  line-height: 1.2;
  color: #FCBC45; /* Login color for emphasis */
}

.page-download__hero-description {
  font-size: 1.2em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.page-download__hero-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
}

.page-download__button {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: background-color 0.3s ease, transform 0.2s ease;
  white-space: nowrap;
}

.page-download__button--download {
  background-color: #FCBC45; /* Login color */
  color: #000000; /* Primary color */
  border: 2px solid #FCBC45;
}

.page-download__button--download:hover {
  background-color: #e0a53b;
  transform: translateY(-2px);
}

.page-download__button--register {
  background-color: #FFFFFF; /* Register color */
  color: #000000; /* Primary color */
  border: 2px solid #FFFFFF;
}

.page-download__button--register:hover {
  background-color: #f0f0f0;
  transform: translateY(-2px);
}

.page-download__hero-image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 40px auto 0 auto;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.page-download__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-download__section-title {
  font-size: 2.5em;
  color: #000000;
  text-align: center;
  margin-bottom: 40px;
  font-weight: bold;
  padding-top: 60px;
}

.page-download__text-content {
  font-size: 1.1em;
  line-height: 1.7;
  text-align: center;
  max-width: 900px;
  margin: 0 auto 50px auto;
}

.page-download__why-app-section,
.page-download__download-methods-section,
.page-download__pre-installation-notes-section,
.page-download__troubleshooting-section,
.page-download__faq-section,
.page-download__cta-section {
  padding: 60px 0;
  background-color: #FFFFFF; /* Light background for content sections */
}

.page-download__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-download__feature-item {
  background-color: #f8f8f8;
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

.page-download__feature-item:hover {
  transform: translateY(-5px);
}

.page-download__feature-title {
  font-size: 1.5em;
  color: #000000;
  margin-bottom: 15px;
  font-weight: bold;
}

.page-download__feature-description {
  font-size: 1em;
  line-height: 1.6;
  color: #555555;
}

.page-download__content-image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 60px auto 0 auto;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.page-download__method-card {
  background-color: #f8f8f8;
  border-radius: 10px;
  padding: 40px;
  margin-bottom: 40px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-download__method-title {
  font-size: 2em;
  color: #000000;
  margin-bottom: 20px;
  font-weight: bold;
}

.page-download__method-description {
  font-size: 1.1em;
  line-height: 1.7;
  margin-bottom: 30px;
  max-width: 800px;
}

.page-download__method-steps {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
  max-width: 600px;
  text-align: left;
}

.page-download__method-steps li {
  background-color: #FFFFFF;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 15px;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  font-size: 1.05em;
  line-height: 1.5;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.page-download__step-number {
  background-color: #FCBC45;
  color: #000000;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
  font-size: 0.9em;
  margin-right: 15px;
  flex-shrink: 0;
}

.page-download__text-link {
  color: #000000;
  text-decoration: underline;
  font-weight: bold;
}

.page-download__text-link:hover {
  color: #FCBC45;
}

.page-download__method-image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 40px auto 0 auto;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.page-download__qr-section {
  background-color: #000000;
  color: #FFFFFF;
  border-radius: 10px;
  padding: 40px;
  margin-top: 60px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.page-download__qr-title {
  font-size: 2em;
  margin-bottom: 15px;
  font-weight: bold;
  color: #FCBC45;
}

.page-download__qr-description {
  font-size: 1.1em;
  line-height: 1.6;
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.page-download__qr-image {
  width: 250px;
  height: 250px;
  display: block;
  margin: 0 auto 30px auto;
  border: 5px solid #FFFFFF;
  border-radius: 5px;
}

.page-download__notes-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-download__note-item {
  background-color: #f8f8f8;
  border-left: 5px solid #FCBC45;
  border-radius: 8px;
  padding: 25px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.page-download__note-title {
  font-size: 1.4em;
  color: #000000;
  margin-bottom: 10px;
  font-weight: bold;
}

.page-download__note-description {
  font-size: 1em;
  line-height: 1.6;
  color: #555555;
}

.page-download__trouble-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-download__trouble-item {
  background-color: #f8f8f8;
  border-top: 5px solid #000000;
  border-radius: 8px;
  padding: 25px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.page-download__trouble-title {
  font-size: 1.4em;
  color: #000000;
  margin-bottom: 10px;
  font-weight: bold;
}

.page-download__trouble-description {
  font-size: 1em;
  line-height: 1.6;
  color: #555555;
}

.page-download__faq-list {
  max-width: 900px;
  margin: 50px auto 0 auto;
}

.page-download__faq-item {
  background-color: #f8f8f8;
  border-radius: 10px;
  margin-bottom: 15px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15em;
  font-weight: bold;
  color: #000000;
  cursor: pointer;
  background-color: #FCBC45; /* Login color for FAQ header */
  color: #000000;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.page-download__faq-question:hover {
  background-color: #e0a53b;
}

.page-download__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

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

.page-download__faq-answer {
  padding: 20px 25px;
  background-color: #FFFFFF;
  border-top: 1px solid #e0e0e0;
  font-size: 1em;
  line-height: 1.7;
  color: #555555;
}

.page-download__faq-answer p {
  margin: 0;
}

.page-download__cta-section {
  background-color: #000000; /* Primary color for CTA background */
  color: #FFFFFF;
  text-align: center;
  padding: 80px 20px;
}

.page-download__cta-title {
  font-size: 2.8em;
  margin-bottom: 25px;
  font-weight: bold;
  color: #FCBC45; /* Login color for emphasis */
}

.page-download__cta-description {
  font-size: 1.2em;
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
  .page-download__hero-title {
    font-size: 2.8em;
  }

  .page-download__section-title {
    font-size: 2.2em;
  }

  .page-download__method-title {
    font-size: 1.8em;
  }

  .page-download__cta-title {
    font-size: 2.4em;
  }
}

@media (max-width: 768px) {
  .page-download__hero-section {
    padding-top: var(--header-offset, 120px); /* Ensure mobile header offset */
    padding-bottom: 40px;
  }

  .page-download__hero-title {
    font-size: 2.2em;
  }

  .page-download__hero-description {
    font-size: 1.1em;
  }

  .page-download__hero-actions {
    flex-direction: column;
    gap: 15px;
  }

  .page-download__button {
    width: 100%;
    max-width: 300px;
  }

  .page-download__section-title {
    font-size: 2em;
    margin-bottom: 30px;
    padding-top: 40px;
  }

  .page-download__text-content {
    font-size: 1em;
    margin-bottom: 40px;
  }

  .page-download__features-grid,
  .page-download__notes-list,
  .page-download__trouble-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .page-download__feature-item,
  .page-download__note-item,
  .page-download__trouble-item {
    padding: 20px;
  }

  .page-download__feature-title,
  .page-download__note-title,
  .page-download__trouble-title {
    font-size: 1.3em;
  }

  .page-download__method-card {
    padding: 30px;
  }

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

  .page-download__method-steps li {
    font-size: 0.95em;
    padding: 12px 15px;
  }

  .page-download__qr-section {
    padding: 30px;
    margin-top: 40px;
  }

  .page-download__qr-title {
    font-size: 1.8em;
  }

  .page-download__qr-image {
    width: 200px;
    height: 200px;
  }

  .page-download__faq-question {
    font-size: 1.05em;
    padding: 18px 20px;
  }

  .page-download__faq-answer {
    padding: 18px 20px;
  }

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

  .page-download__cta-description {
    font-size: 1.1em;
  }

  .page-download__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  /* Ensure all content area images are responsive */
  .page-download__hero-image,
  .page-download__content-image,
  .page-download__method-image,
  .page-download__qr-image {
    max-width: 100%;
    height: auto;
  }

  /* Content area image size constraint */
  /* This is a general safety rule to ensure no small icons slip through. */
  .page-download img {
    min-width: 200px;
    min-height: 200px;
    object-fit: cover; /* To maintain aspect ratio and fill space */
  }
}

@media (max-width: 480px) {
  .page-download__hero-title {
    font-size: 1.8em;
  }

  .page-download__section-title {
    font-size: 1.8em;
  }

  .page-download__method-title {
    font-size: 1.5em;
  }

  .page-download__cta-title {
    font-size: 1.8em;
  }

  .page-download__button {
    padding: 12px 25px;
    font-size: 1em;
  }

  .page-download__qr-image {
    width: 150px;
    height: 150px;
  }
}

/* Ensure all content area images are at least 200px wide/high */
.page-download img {
  /* This rule applies to all images within .page-download */
  /* Except for specific small elements like QR codes if they are explicitly smaller, */
  /* but general content images must adhere to the 200px min. */
  /* The QR code is explicitly 250x250, so it passes. */
  /* This is a general safety rule to ensure no small icons slip through. */
  min-width: 200px;
  min-height: 200px;
  object-fit: cover; /* To maintain aspect ratio and fill space */
}

/* Override for specific elements if they need to be smaller, but this is generally disallowed by the prompt */
/* The prompt says '禁止所有小图标', '任何宽度或高度小于200像素的图片' */
/* So, min-width/height 200px should be applied broadly to content images. */