.page-download {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #FFF5E1; /* Text Main from custom colors, for dark background */
  background-color: #B71C1C; /* Background from custom colors */
  padding-bottom: 40px;
}

.page-download__hero-section {
  position: relative;
  overflow: hidden;
  padding-top: 10px; /* Small top padding, not --header-offset */
  display: flex;
  flex-direction: column; /* Image on top, content below */
  align-items: center;
  text-align: center;
  padding-bottom: 40px;
}

.page-download__hero-image-wrapper {
    width: 100%;
    max-height: 500px; /* Limit height for hero image */
    overflow: hidden;
    margin-bottom: 20px; /* Space between image and content */
}

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

.page-download__hero-content {
  max-width: 900px;
  padding: 0 20px;
  z-index: 1;
}

.page-download__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem); /* Use clamp for H1 font size */
  font-weight: 700;
  color: #FFF5E1; /* Text Main */
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-download__description {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: #FFF5E1; /* Text Main */
}

.page-download__cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 20px;
  width: 100%; /* Ensure container takes full width for responsive handling */
  max-width: 600px; /* Limit max width for desktop */
  margin-left: auto;
  margin-right: auto;
}

.page-download__btn-primary,
.page-download__btn-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  min-width: 200px;
  box-sizing: border-box; /* Crucial for responsive buttons */
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow text wrapping */
  text-align: center;
}

.page-download__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%); /* Button color from custom */
  color: #7A0E0E; /* Deep Red for text on gold button for contrast */
  border: 2px solid #F4D34D; /* Gold border */
}

.page-download__btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 15px #FFCC66; /* Glow effect */
}

.page-download__btn-secondary {
  background: #7A0E0E; /* Deep Red from custom colors */
  color: #FFF5E1; /* Text Main */
  border: 2px solid #F2B544; /* Border from custom colors */
}

.page-download__btn-secondary:hover {
  background: #5a0b0b;
  box-shadow: 0 0 15px #FFCC66; /* Glow effect */
}

.page-download__section {
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 20px;
  text-align: center;
}

.page-download__section-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: #FFF5E1; /* Text Main */
  margin-bottom: 30px;
  position: relative;
  padding-bottom: 10px;
}

.page-download__section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #FFD86A 0%, #E6B800 100%); /* Gold gradient */
  border-radius: 2px;
}

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

.page-download__feature-card {
  background-color: #D32F2F; /* Card BG from custom colors */
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #F2B544; /* Border color */
}

.page-download__feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.page-download__feature-icon {
  width: 100%; /* Ensure image fills card width */
  max-width: 400px; /* Max width for feature images */
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
  object-fit: cover;
  min-height: 200px; /* Min size constraint */
}

.page-download__card-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #FFF5E1; /* Text Main */
  margin-bottom: 15px;
}

.page-download__feature-card p {
  color: #FFF5E1; /* Text Main */
  font-size: 1rem;
}

.page-download__how-to-download .page-download__download-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__step-card {
  background-color: #D32F2F; /* Card BG */
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #F2B544; /* Border color */
}

.page-download__step-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.page-download__qr-code-image,
.page-download__download-illustration,
.page-download__install-illustration,
.page-download__login-illustration {
  width: 100%;
  max-width: 300px; /* Max width for step images */
  height: auto;
  margin: 0 auto 20px auto;
  border-radius: 8px;
  object-fit: cover;
  min-height: 200px; /* Min size constraint */
}

.page-download__faq-list {
  max-width: 900px;
  margin: 40px auto;
  text-align: left;
}

details.page-download__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #F2B544; /* Border color */
  overflow: hidden;
  background: #D32F2F; /* Card BG */
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}
details.page-download__faq-item summary.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
  color: #FFF5E1; /* Text Main */
  font-weight: 600;
}
details.page-download__faq-item summary.page-download__faq-question::-webkit-details-marker {
  display: none;
}
details.page-download__faq-item summary.page-download__faq-question:hover {
  background: #7A0E0E; /* Deep Red for hover */
}
.page-download__faq-qtext {
  flex: 1;
  font-size: 1.1rem;
  line-height: 1.5;
  text-align: left;
}
.page-download__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #FFF5E1; /* Text Main */
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-download__faq-item .page-download__faq-answer {
  padding: 0 20px 20px;
  background: #7A0E0E; /* Deep Red for answer background */
  border-radius: 0 0 5px 5px;
  color: #FFF5E1; /* Text Main */
  font-size: 1rem;
}

.page-download__final-cta {
  margin-top: 60px;
  padding-bottom: 60px;
}

/* General image rules */
.page-download img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* Responsive styles for 1024px */
@media (max-width: 1024px) {
  .page-download__hero-section {
    padding-bottom: 30px;
  }
  .page-download__main-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }
  .page-download__description {
    font-size: 1rem;
  }
  .page-download__cta-buttons {
    flex-wrap: wrap;
    gap: 15px;
    max-width: 500px;
  }
  .page-download__btn-primary,
  .page-download__btn-secondary {
    min-width: unset;
    flex-grow: 1;
    padding: 12px 25px;
    font-size: 1rem;
  }
  .page-download__section {
    margin: 30px auto;
    padding: 0 15px;
  }
  .page-download__section-title {
    font-size: 2rem;
  }
  .page-download__feature-grid,
  .page-download__download-steps {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
  }
  .page-download__feature-card,
  .page-download__step-card {
    padding: 25px;
  }
  .page-download__card-title {
    font-size: 1.3rem;
  }
  .page-download__faq-list {
    max-width: 700px;
  }
  details.page-download__faq-item summary.page-download__faq-question {
    padding: 15px 18px;
  }
  .page-download__faq-qtext {
    font-size: 1rem;
  }
  details.page-download__faq-item .page-download__faq-answer {
    padding: 0 18px 18px;
  }
}

/* Mobile responsive @media (max-width: 768px)必写清单 */
@media (max-width: 768px) {
  /* 1. 首页轮播 (page-download__hero-section) - padding/图片适配; 顶距约 10px，禁止 var(--header-offset) */
  .page-download__hero-section {
    padding-top: 10px !important; /* Ensure 10px top padding */
    padding-bottom: 20px;
  }
  .page-download__hero-image-wrapper {
    max-height: 300px; /* Smaller max height for mobile hero image */
  }
  .page-download__hero-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-download__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem); /* Adjust H1 font size for smaller screens */
    margin-bottom: 10px;
  }
  .page-download__description {
    font-size: 0.95rem;
    margin-bottom: 20px;
    padding: 0 15px;
  }

  /* 2. 首页双列 CTA (page-download__cta-buttons) - 768px 单列堆叠、按钮 max-width:100% */
  .page-download__cta-buttons {
    flex-direction: column !important; /* Stack buttons vertically */
    gap: 10px !important; /* Smaller gap */
    max-width: 100% !important; /* Full width for container */
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-download__btn-primary,
  .page-download__btn-secondary {
    max-width: 100% !important; /* Full width for buttons */
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important; /* Allow text wrapping */
    word-wrap: break-word !important; /* Allow text wrapping */
    padding: 12px 15px !important; /* Adjust padding */
    font-size: 1rem !important;
  }

  /* 3. 首页长文滚动框/博客滑块 (N/A for download page) */
  /* This page does not have __home-content or __blog-slider, so these rules are not applicable. */

  /* 4. 通用图片与容器 */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-download__section,
  .page-download__feature-grid,
  .page-download__download-steps,
  .page-download__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 5. 按钮与按钮容器 (covered in point 2) */

  /* 6. 内页 FAQ 等内容模块 - 768px 内边距、字号可读性 */
  .page-download__section-title {
    font-size: 1.8rem;
    margin-bottom: 20px;
  }
  .page-download__feature-grid,
  .page-download__download-steps {
    grid-template-columns: 1fr; /* Single column for cards */
    gap: 20px;
  }
  .page-download__feature-card,
  .page-download__step-card {
    padding: 20px;
  }
  .page-download__card-title {
    font-size: 1.2rem;
  }
  details.page-download__faq-item summary.page-download__faq-question {
    padding: 15px;
  }
  .page-download__faq-qtext {
    font-size: 0.95rem;
  }
  details.page-download__faq-item .page-download__faq-answer {
    padding: 0 15px 15px;
  }
}