/* style/download.css */
/* 页面完整样式代码 - 注意：所有选择器必须使用BEM命名规则（双下划线__连接） */

/* General Styles */
.page-download {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light body background */
  background-color: var(--bg-color-light, #ffffff); /* Inherit from shared, fallback to white */
  padding-top: var(--header-offset, 120px); /* Ensure content is not hidden by fixed header */
}

.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: 20px;
  font-weight: bold;
}

.page-download__section-description {
  font-size: 1.1em;
  color: #555555;
  text-align: center;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Color Schemes */
.page-download__dark-bg {
  background-color: #26A9E0; /* Primary brand color */
  color: #ffffff; /* White text for dark background */
}

.page-download__dark-bg .page-download__section-title,
.page-download__dark-bg .page-download__section-description,
.page-download__dark-bg .page-download__platform-title,
.page-download__dark-bg .page-download__step-item {
  color: #ffffff;
}

.page-download__light-bg {
  background-color: #ffffff; /* Auxiliary brand color / white */
  color: #333333; /* Dark text for light background */
}

/* Buttons */
.page-download__btn-primary,
.page-download__btn-secondary {
  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, color 0.3s ease, border-color 0.3s ease;
  cursor: pointer;
  text-align: center;
  box-sizing: border-box; /* Crucial for responsive buttons */
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow text wrapping */
}

.page-download__btn-primary {
  background-color: #26A9E0; /* Primary brand color */
  color: #ffffff;
  border: 2px solid #26A9E0;
}

.page-download__btn-primary:hover {
  background-color: #1e87bb;
  border-color: #1e87bb;
}

.page-download__btn-secondary {
  background-color: #ffffff;
  color: #26A9E0; /* Primary brand color text */
  border: 2px solid #26A9E0;
}

.page-download__btn-secondary:hover {
  background-color: #e0f4ff;
  color: #2086b4;
  border-color: #2086b4;
}

.page-download__btn-block {
  display: block;
  width: 100%;
  margin-top: 20px;
}

/* Hero Section */
.page-download__hero-section {
  padding: 80px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden; /* Prevent content overflow */
}

.page-download__hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin-bottom: 40px;
}

.page-download__hero-title {
  font-size: 3.5em;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-download__hero-description {
  font-size: 1.3em;
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.page-download__download-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 30px;
}

.page-download__qr-code-wrapper {
  margin-top: 30px;
  background-color: rgba(255, 255, 255, 0.9);
  padding: 20px;
  border-radius: 12px;
  display: inline-block;
}

.page-download__qr-code {
  width: 200px;
  height: 200px;
  display: block;
  margin: 0 auto 15px;
  border-radius: 8px;
}

.page-download__qr-text {
  color: #333333;
  font-size: 1em;
  font-weight: bold;
}

.page-download__hero-image-wrapper {
  position: relative;
  z-index: 1;
  margin-top: 40px;
}

.page-download__hero-app-mockup {
  max-width: 600px;
  height: auto;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Why Download Section */
.page-download__why-download {
  padding: 80px 0;
}

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

.page-download__feature-card {
  background-color: #f9f9f9;
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

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

.page-download__feature-icon {
  width: 200px; /* Must be at least 200px */
  height: 150px; /* Must be at least 150px (maintaining aspect ratio if 200x150) */
  margin-bottom: 20px;
  border-radius: 8px; /* Changed from 50% as it's not a small icon anymore */
  object-fit: cover;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-download__feature-title {
  font-size: 1.5em;
  color: #26A9E0;
  margin-bottom: 15px;
}

.page-download__feature-text {
  font-size: 1em;
  color: #555555;
}

/* How to Download Section */
.page-download__how-to-download {
  padding: 80px 0;
}

.page-download__download-steps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 50px;
}

.page-download__platform-guide {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.page-download__platform-title {
  font-size: 2em;
  margin-bottom: 25px;
  text-align: center;
}

.page-download__step-list {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
}

.page-download__step-item {
  position: relative;
  padding-left: 35px;
  margin-bottom: 15px;
  font-size: 1.1em;
  color: #ffffff;
  counter-increment: step-counter;
}

.page-download__step-item::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  background-color: #ffffff;
  color: #26A9E0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.9em;
}

/* App Showcase Section */
.page-download__app-showcase {
  padding: 80px 0;
}

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

.page-download__showcase-item {
  background-color: #f9f9f9;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  text-align: center;
}

.page-download__showcase-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.page-download__showcase-title {
  font-size: 1.4em;
  color: #26A9E0;
  margin: 20px 15px 10px;
}

.page-download__showcase-text {
  font-size: 1em;
  color: #555555;
  padding: 0 15px 20px;
}

/* Video Section */
.page-download__video-section {
  padding: 80px 0;
}

.page-download__video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  max-width: 100%;
  background: #000;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  margin: 0 auto; /* Center the video */
}

.page-download__video-link {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: pointer;
}

.page-download__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}

/* FAQ Section */
.page-download__faq-section {
  padding: 80px 0;
}

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

.page-download__faq-item {
  background-color: #f9f9f9;
  border-radius: 12px;
  margin-bottom: 15px;
  box-shadow: 0 2px 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;
  cursor: pointer;
  background-color: #ffffff;
  border-bottom: 1px solid #e0e0e0;
}

.page-download__faq-question:hover {
  background-color: #f0f0f0;
}

.page-download__faq-title {
  font-size: 1.2em;
  color: #26A9E0;
  margin: 0;
}

.page-download__faq-toggle {
  font-size: 1.8em;
  font-weight: bold;
  color: #26A9E0;
  transition: transform 0.3s ease;
}

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

.page-download__faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 25px;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: #555555;
  background-color: #f9f9f9;
}

.page-download__faq-item.active .page-download__faq-answer {
  max-height: 1000px !important; /* Sufficiently large value */
  padding: 15px 25px;
}

/* Call to Action Section */
.page-download__cta-section {
  padding: 80px 0;
  text-align: center;
}

.page-download__cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 40px;
}

/* Copyright Info */
.page-download__copyright-info {
  padding: 20px 0;
  text-align: center;
  font-size: 0.9em;
  color: #777777;
  margin-top: 40px;
  border-top: 1px solid #eeeeee;
}

.page-download__copyright-text {
  margin: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-download__hero-title {
    font-size: 3em;
  }

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

  .page-download__hero-app-mockup {
    max-width: 500px;
  }
}

@media (max-width: 768px) {
  .page-download {
    font-size: 16px;
    line-height: 1.6;
  }

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

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

  .page-download__hero-section {
    padding: 60px 0;
  }

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

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

  .page-download__download-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 300px; /* Constrain button group width */
    margin-left: auto;
    margin-right: auto;
  }

  .page-download__btn-primary,
  .page-download__btn-secondary {
    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__hero-app-mockup {
    max-width: 350px;
    height: auto;
  }

  .page-download__features-grid,
  .page-download__download-steps-grid,
  .page-download__showcase-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .page-download__platform-guide {
    padding: 30px;
  }

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

  .page-download__step-item {
    font-size: 1em;
  }

  /* Image responsiveness */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  /* Image containers responsiveness */
  .page-download__section,
  .page-download__card,
  .page-download__container,
  .page-download__feature-card,
  .page-download__showcase-item,
  .page-download__qr-code-wrapper,
  .page-download__hero-image-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }

  /* Video responsiveness */
  .page-download video,
  .page-download__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  /* Video containers responsiveness */
  .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;
  }
  
  /* Ensure video-section padding-top is correct on mobile */
  .page-download__video-section {
    padding-top: var(--header-offset, 120px) !important;
  }

  /* Button responsiveness */
  .page-download__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 300px; /* Constrain button group width */
    margin-left: auto;
    margin-right: auto;
    padding-left: 15px;
    padding-right: 15px;
  }
}

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

  .page-download__hero-description {
    font-size: 0.95em;
  }

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

  .page-download__feature-card,
  .page-download__platform-guide,
  .page-download__showcase-item {
    padding: 25px;
  }

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

  .page-download__faq-title {
    font-size: 1.1em;
  }

  .page-download__faq-answer {
    padding: 10px 20px;
  }
}