/* style/download.css */

/* Custom Colors */
:root {
  --primary-color: #C61F1F;
  --secondary-color: #E53030;
  --button-gradient: linear-gradient(180deg, #FFB04A 0%, #D86A14 100%);
  --card-bg: #2A1212;
  --background-dark: #140C0C; /* Using for specific sections */
  --text-main: #FFF1E8;
  --border-color: #6A1E1E;
  --gold-color: #F3C54D;
  --deep-red: #7E0D0D;
  /* --header-offset is assumed to be defined in shared.css and applied to body */
}

/* Base styles for the page content */
.page-download {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main); /* Default text color for dark background */
  background-color: var(--background-dark); /* Apply specific dark background for main content area */
}

/* Container for content sections */
.page-download__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  box-sizing: border-box;
}

/* Section Titles */
.page-download__section-title {
  font-size: 2.8em;
  font-weight: bold;
  text-align: center;
  margin-bottom: 20px;
  color: var(--gold-color); /* Gold color for main titles for contrast */
  line-height: 1.2;
}

/* Section Descriptions */
.page-download__section-description {
  font-size: 1.1em;
  text-align: center;
  margin-bottom: 40px;
  color: var(--text-main);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Hero Section */
.page-download__hero-section {
  padding-top: 10px; /* Small top padding, assuming body has header offset */
  padding-bottom: 60px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: var(--background-dark); /* Ensure dark background for hero */
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  margin-bottom: 30px;
  box-sizing: border-box;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  min-height: 200px; /* Min size requirement */
}

.page-download__hero-content {
  text-align: center;
  max-width: 800px;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-download__hero-title {
  font-size: clamp(2.5em, 5vw, 3.5em); /* Use clamp for H1 */
  font-weight: bold;
  color: var(--gold-color);
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-download__hero-description {
  font-size: 1.2em;
  color: var(--text-main);
  margin-bottom: 30px;
}

/* CTA Buttons */
.page-download__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  width: 100%;
  max-width: 600px; /* Limit max width for button group */
  margin: 0 auto;
  box-sizing: border-box;
  padding: 0 15px; /* Add padding to container */
}

.page-download__btn-primary,
.page-download__btn-secondary,
.page-download a[class*="button"],
.page-download a[class*="btn"] {
  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: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow text wrapping */
  box-sizing: border-box;
  max-width: 100%; /* Ensure buttons don't overflow */
  text-align: center;
}

.page-download__btn-primary {
  background: var(--button-gradient);
  color: #ffffff; /* White text on button gradient */
  border: 2px solid transparent;
}

.page-download__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(255, 176, 74, 0.4);
}

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

.page-download__btn-secondary:hover {
  background: var(--gold-color);
  color: var(--background-dark);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(243, 197, 77, 0.2);
}

/* Advantage Section */
.page-download__advantages-section {
  padding: 80px 0;
  background-color: var(--card-bg); /* Darker background for this section */
  color: var(--text-main);
}

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

.page-download__advantage-card {
  background: rgba(255, 255, 255, 0.05); /* Slightly transparent white on dark background */
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-download__card-title {
  font-size: 1.5em;
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--gold-color);
}

.page-download__card-description {
  font-size: 1em;
  color: var(--text-main);
}

/* Download Options Section */
.page-download__download-options-section {
  padding: 80px 0;
  background-color: var(--background-dark); /* Main background */
  color: var(--text-main);
}

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

.page-download__download-card {
  background: var(--card-bg); /* Dark card background */
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-download__qr-code-wrapper,
.page-download__icon-wrapper {
  margin: 20px 0;
  display: inline-block; /* To center */
}

.page-download__qr-code,
.page-download__pc-icon {
  width: 250px;
  height: 250px;
  object-fit: contain;
  border-radius: 5px;
  display: block; /* Ensure it respects width/height */
  min-width: 200px; /* Min size requirement */
  min-height: 200px; /* Min size requirement */
}

.page-download__pc-icon {
  width: 200px;
  height: 200px;
}


/* Installation Guide Section */
.page-download__installation-guide-section {
  padding: 80px 0;
  background-color: var(--card-bg); /* Darker background */
  color: var(--text-main);
}

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

.page-download__step-card {
  background: rgba(255, 255, 255, 0.05); /* Slightly transparent white */
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-download__step-number {
  background: var(--gold-color);
  color: var(--background-dark);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.5em;
  font-weight: bold;
  margin-bottom: 20px;
}

.page-download__step-image {
  width: 100%;
  height: auto;
  max-width: 800px;
  margin-top: 20px;
  border-radius: 8px;
  display: block;
  min-width: 200px; /* Min size requirement */
  min-height: 200px; /* Min size requirement */
  object-fit: cover;
}

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

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

.page-download__faq-item {
  background: var(--card-bg); /* Dark card background */
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  color: var(--text-main);
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2em;
  font-weight: bold;
  cursor: pointer;
  color: var(--gold-color);
  background: rgba(255, 255, 255, 0.03); /* Slightly lighter background for question */
}

.page-download__faq-question:hover {
  background: rgba(255, 255, 255, 0.07);
}

.page-download__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  transition: transform 0.3s ease;
}

.page-download__faq-item[open] .page-download__faq-toggle {
  transform: rotate(45deg); /* Rotate plus to form an X or close icon */
}

.page-download__faq-answer {
  padding: 0 25px 20px;
  font-size: 1em;
  color: var(--text-main);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.page-download__faq-item[open] .page-download__faq-answer {
  max-height: 2000px; /* Large enough to accommodate content */
  padding-top: 15px;
}

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

/* Final CTA Section */
.page-download__cta-final-section {
  padding: 80px 0;
  background-color: var(--deep-red); /* Deep red for final CTA */
  text-align: center;
  color: #ffffff;
}

.page-download__cta-final-section .page-download__section-title {
  color: #ffffff; /* White title on deep red background */
}

.page-download__cta-final-section .page-download__section-description {
  color: #ffffff; /* White description on deep red background */
}

/* --- Responsive Styles (Mobile First / Desktop Overrides) --- */

/* General image and container responsiveness for mobile */
.page-download img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* @media (max-width: 768px) - Mobile specific styles */
@media (max-width: 768px) {
  /* HERO 主图区域 */
  .page-download__hero-section {
    padding-top: 10px !important; /* Small top padding, assuming body has header offset */
    padding-bottom: 40px;
  }

  .page-download__hero-title {
    font-size: clamp(2em, 8vw, 2.5em);
  }

  .page-download__hero-description {
    font-size: 1em;
  }

  /* 通用图片与容器 */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  
  .page-download__container,
  .page-download__advantages-section .page-download__container,
  .page-download__download-options-section .page-download__container,
  .page-download__installation-guide-section .page-download__container,
  .page-download__faq-section .page-download__container,
  .page-download__cta-final-section .page-download__container,
  .page-download__hero-content,
  .page-download__cta-buttons {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 按钮与按钮容器 */
  .page-download__cta-buttons {
    flex-direction: column !important; /* Stack buttons vertically on mobile */
    gap: 15px;
  }

  .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;
    font-size: 1em !important;
    padding: 12px 20px !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 其他内容模块 - Section Titles */
  .page-download__section-title {
    font-size: 2em;
    margin-bottom: 15px;
  }

  .page-download__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }

  /* Sản phẩm/Dịch vụ/Hình ảnh (General grid items like cards) */
  .page-download__advantages-grid,
  .page-download__download-grid,
  .page-download__guide-steps {
    grid-template-columns: 1fr;
  }

  .page-download__qr-code,
  .page-download__pc-icon {
    width: 200px !important;
    height: 200px !important;
    min-width: 200px !important;
    min-height: 200px !important;
  }

  .page-download__advantage-card,
  .page-download__download-card,
  .page-download__step-card {
    padding: 20px;
  }

  .page-download__card-title {
    font-size: 1.3em;
  }

  .page-download__faq-question {
    font-size: 1.1em;
    padding: 15px 20px;
  }

  .page-download__faq-answer {
    padding: 0 20px 15px;
  }
}

/* Ensure no filter is used on images */
.page-download img {
  filter: none !important;
}

/* Contrast Fixes if needed for light sections */
.page-download__light-bg {
  background: #ffffff; /* Explicitly white background for light cards */
  color: #333333; /* Dark text for light background */
}

/* Ensure headings on dark sections use contrasting color */
.page-download__dark-section .page-download__section-title {
  color: var(--gold-color);
}
.page-download__dark-section .page-download__card-title {
  color: var(--gold-color);
}

/* Ensure text on dark sections is light */
.page-download__dark-section p {
  color: var(--text-main);
}