/* style/download.css */
:root {
  --primary-color: #FFD700; /* Gold */
  --secondary-color: #000080; /* Dark Blue */
  --text-light: #ffffff;
  --text-dark: #333333;
  --background-dark: #121212;
  --background-light: #f8f9fa;
  --card-bg-dark: rgba(255, 255, 255, 0.1);
  --card-bg-light: #ffffff;
  --border-color: #e0e0e0;
}

.page-download {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-light); /* Body background is dark, so use light text */
  background-color: var(--background-dark);
  padding-bottom: 60px; /* Ensure space above footer */
}

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

/* 🚨 桌面端视频区域样式（必须严格遵守） */
.page-download__video-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  padding-top: 10px; /* 桌面端：根据导航栏实际高度调整 */
  background-color: var(--background-dark);
}

.page-download__video-container {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* 🚨 视频点击链接样式（必须严格遵守） */
.page-download__video-link {
  display: block;
  text-decoration: none;
  position: relative;
  width: 100%;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-download__video-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.page-download__video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 宽高比 - 🚨 PageSpeed优化：固定宽高比避免布局偏移（CLS） */
  height: 0;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.page-download__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 8px;
  object-fit: cover;
  pointer-events: none; /* 防止视频控件阻止点击事件 */
}

/* 🚨 视频点击提示遮罩层样式（可选，增强用户体验） */
.page-download__video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 1;
}

.page-download__video-link:hover .page-download__video-overlay {
  opacity: 1;
}

.page-download__video-click-hint {
  color: var(--text-light);
  font-size: 18px;
  font-weight: bold;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  padding: 10px 20px;
  background: rgba(0, 123, 255, 0.8); /* Using a clear blue for hint */
  border-radius: 5px;
  white-space: nowrap;
}

/* 🚨 Play Now按钮样式（必须严格遵守，位于视频下方中间位置） */
.page-download__video-cta {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 30px;
}

.page-download__play-now-button {
  display: inline-block;
  padding: 15px 40px;
  background: var(--primary-color);
  color: var(--text-light);
  text-decoration: none;
  border-radius: 8px;
  font-size: 18px;
  font-weight: bold;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  border: none;
  cursor: pointer;
}

.page-download__play-now-button:hover {
  background: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.page-download__play-now-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.page-download__title-section {
  text-align: center;
  padding: 60px 0;
  background-color: var(--background-dark);
}

.page-download__main-title {
  font-size: 3.2em;
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: 700;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-download__title-description {
  font-size: 1.2em;
  color: var(--text-light);
  max-width: 800px;
  margin: 0 auto 40px auto;
  line-height: 1.8;
}

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

.page-download__cta-button {
  display: inline-block;
  padding: 15px 30px;
  font-size: 1.1em;
  font-weight: bold;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  text-align: center;
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow long words to break */
  max-width: 100%;
  box-sizing: border-box;
}

.page-download__btn-primary {
  background: var(--primary-color);
  color: var(--text-dark);
  border: 2px solid var(--primary-color);
}

.page-download__btn-primary:hover {
  background: var(--secondary-color);
  color: var(--text-light);
  border-color: var(--secondary-color);
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.page-download__btn-secondary {
  background: var(--secondary-color);
  color: var(--text-light);
  border: 2px solid var(--secondary-color);
}

.page-download__btn-secondary:hover {
  background: var(--primary-color);
  color: var(--text-dark);
  border-color: var(--primary-color);
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.page-download__section-title {
  font-size: 2.5em;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 40px;
  padding-top: 40px;
  font-weight: 700;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}

.page-download__text-block {
  font-size: 1.1em;
  color: var(--text-light);
  margin-bottom: 30px;
  line-height: 1.7;
  text-align: justify;
}

.page-download__dark-section {
  background-color: var(--secondary-color);
  color: var(--text-light);
  padding: 80px 0;
}

.page-download__benefits-section {
  padding: 80px 0;
  background-color: var(--background-dark);
}

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

.page-download__benefit-card {
  background: var(--card-bg-dark);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(255, 215, 0, 0.3);
}

.page-download__benefit-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-download__benefit-icon {
  width: 120px; /* Increased icon size */
  height: 120px; /* Increased icon size */
  margin-bottom: 20px;
  object-fit: contain;
}

.page-download__benefit-title {
  font-size: 1.5em;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-download__benefit-description {
  font-size: 1em;
  color: var(--text-light);
  line-height: 1.7;
}

.page-download__guide-section {
  padding: 80px 0;
  background-color: var(--background-dark);
}

.page-download__guide-item {
  background: var(--card-bg-dark);
  padding: 30px;
  border-radius: 12px;
  margin-bottom: 40px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 215, 0, 0.3);
}

.page-download__guide-subtitle {
  font-size: 1.8em;
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: 600;
}

.page-download__guide-list {
  list-style-type: decimal;
  margin-left: 25px;
  margin-bottom: 20px;
  color: var(--text-light);
  font-size: 1.05em;
}

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

.page-download__guide-list strong {
  color: var(--primary-color);
}

.page-download__guide-image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 25px auto 0 auto;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  min-width: 200px;
  min-height: 200px;
}

.page-download__requirements-list {
  list-style-type: disc;
  margin-left: 25px;
  color: var(--text-light);
  font-size: 1.05em;
}

.page-download__requirements-list li {
  margin-bottom: 8px;
}

.page-download__features-section {
  padding: 80px 0;
  background-color: var(--secondary-color);
  color: var(--text-light);
}

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

.page-download__feature-card {
  background: var(--card-bg-dark);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(255, 215, 0, 0.3);
}

.page-download__feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-download__feature-icon {
  width: 120px; /* Increased icon size */
  height: 120px; /* Increased icon size */
  margin-bottom: 20px;
  object-fit: contain;
}

.page-download__feature-title {
  font-size: 1.5em;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-download__feature-description {
  font-size: 1em;
  color: var(--text-light);
  line-height: 1.7;
}

/* FAQ Section */
.page-download__faq-section {
  padding: 80px 0;
  background-color: var(--background-dark);
}

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

.page-download__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  overflow: hidden;
  border: 1px solid rgba(255, 215, 0, 0.3);
}

.page-download__faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
  padding: 0 15px;
  opacity: 0;
}

.page-download__faq-item.active .page-download__faq-answer {
  max-height: 2000px !important;
  padding: 20px 15px !important;
  opacity: 1;
  background: var(--card-bg-dark);
  border-radius: 0 0 5px 5px;
  color: var(--text-light);
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  background: var(--secondary-color);
  border-radius: 5px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  position: relative;
}

.page-download__faq-question:hover {
  background: color-mix(in srgb, var(--secondary-color) 80%, black);
  border-color: var(--primary-color);
}

.page-download__faq-question:active {
  background: color-mix(in srgb, var(--secondary-color) 70%, black);
}

.page-download__faq-question h3 {
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 1.2em;
  font-weight: 600;
  line-height: 1.5;
  pointer-events: none;
  color: var(--primary-color);
}

.page-download__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  line-height: 1;
  color: var(--primary-color);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  margin-left: 15px;
  pointer-events: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
}

.page-download__faq-item.active .page-download__faq-toggle {
  color: var(--text-light);
  transform: rotate(45deg); /* Change to rotate for minus sign visual */
}

/* Brand Section */
.page-download__brand-section {
  padding: 80px 0;
  background-color: var(--secondary-color);
  color: var(--text-light);
}

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

.page-download__brand-item {
  background: var(--card-bg-dark);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 215, 0, 0.3);
}

.page-download__brand-subtitle {
  font-size: 1.6em;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 600;
}

/* Blog Section */
.page-download__blog-section {
  padding: 80px 0;
  background-color: var(--background-dark);
}

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

.page-download__blog-item {
  background: var(--card-bg-dark);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(255, 215, 0, 0.3);
}

.page-download__blog-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-download__blog-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.page-download__blog-image {
  width: 100%;
  height: 220px; /* Fixed height for blog images */
  object-fit: cover;
  display: block;
  min-width: 200px;
  min-height: 200px;
}

.page-download__blog-content {
  padding: 25px;
}

.page-download__blog-item-title {
  font-size: 1.4em;
  color: var(--primary-color);
  margin-bottom: 10px;
  font-weight: 600;
  line-height: 1.4;
}

.page-download__blog-item-excerpt {
  font-size: 0.95em;
  color: var(--text-light);
  margin-bottom: 15px;
  line-height: 1.6;
}

.page-download__blog-item-date {
  font-size: 0.85em;
  color: rgba(255, 255, 255, 0.7);
  display: block;
}

/* 🚨 移动端响应式设计（必须严格遵守） */
@media (max-width: 768px) {
  .page-download {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-download__video-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
    padding-left: 15px;
    padding-right: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
  
  .page-download__video-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
    overflow: hidden !important;
  }
  
  .page-download__video-link {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  
  .page-download__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    border-radius: 4px;
    overflow: hidden !important;
  }
  
  .page-download__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    border-radius: 4px;
    object-fit: contain;
  }
  
  .page-download__video-cta {
    margin-top: 20px;
    padding-left: 15px;
    padding-right: 15px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  
  .page-download__play-now-button {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 12px 30px !important;
    font-size: 16px !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-download__video-click-hint {
    font-size: 14px !important;
    padding: 8px 16px !important;
  }

  .page-download__container {
    padding: 0 15px;
  }

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

  .page-download__title-description {
    font-size: 1em;
    margin-bottom: 30px;
  }

  .page-download__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }

  .page-download__cta-button {
    width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

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

  .page-download__text-block {
    font-size: 0.95em;
  }

  .page-download__benefits-grid, .page-download__features-grid, .page-download__brand-content, .page-download__blog-list {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-download__benefit-card, .page-download__feature-card, .page-download__brand-item, .page-download__blog-item {
    padding: 20px;
    border-radius: 8px;
  }

  .page-download__benefit-icon, .page-download__feature-icon {
    width: 100px;
    height: 100px;
  }

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

  .page-download__guide-subtitle {
    font-size: 1.5em;
  }

  .page-download__guide-list, .page-download__requirements-list {
    margin-left: 20px;
    font-size: 0.95em;
  }

  .page-download__faq-question {
    padding: 15px;
    flex-wrap: wrap;
  }
  
  .page-download__faq-question h3 {
    font-size: 1.05em;
    margin-bottom: 0;
    width: calc(100% - 40px);
  }
  
  .page-download__faq-toggle {
    margin-left: 10px;
    width: 24px;
    height: 24px;
    font-size: 20px;
  }
  
  .page-download__faq-answer {
    padding: 0 15px;
  }
  
  .page-download__faq-item.active .page-download__faq-answer {
    padding: 15px !important;
  }

  .page-download__brand-subtitle {
    font-size: 1.4em;
  }

  .page-download__blog-image {
    height: 180px;
  }

  .page-download__blog-content {
    padding: 20px;
  }

  .page-download__blog-item-title {
    font-size: 1.2em;
  }

  .page-download__blog-item-excerpt {
    font-size: 0.9em;
  }

  /* 🚨 强制所有图片适配移动端 */
  .page-download img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-download__section, 
  .page-download__card, 
  .page-download__container, 
  .page-download__guide-item, 
  .page-download__benefit-card, 
  .page-download__feature-card, 
  .page-download__brand-item, 
  .page-download__blog-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important; /* Ensure content doesn't overflow */
  }

  /* 🚨 强制所有视频适配移动端 */
  .page-download video, .page-download__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-download__video-section,
  .page-download__video-container,
  .page-download__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  
  .page-download__video-wrapper {
    padding-bottom: 56.25% !important; /* Maintain aspect ratio */
  }

  /* 🚨 强制所有按钮适配移动端 */
  .page-download__cta-button,
  .page-download__btn-primary,
  .page-download__btn-secondary,
  .page-download a[class*="button"],
  .page-download a[class*="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;
    padding-right: 15px;
  }
  
  .page-download__cta-buttons,
  .page-download__button-group,
  .page-download__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }
  
  .page-download__cta-buttons {
    flex-direction: column !important; 
  }
}