.page-index {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #f0f0f0; /* Light text for dark body background */
  background-color: var(--dark-bg); /* Inherit from shared.css */
}

.page-index__section {
  padding: 60px 20px;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
  box-sizing: border-box;
}

.page-index__dark-section {
  background-color: #2C3E50; /* Primary brand color for dark sections */
  color: #ffffff;
}

.page-index__title-section {
  padding: 80px 20px;
  text-align: center;
  background: linear-gradient(135deg, #2C3E50 0%, #1a2a3a 100%);
  color: #ffffff;
}

.page-index__title-container {
  max-width: 900px;
  margin: 0 auto;
}

.page-index__main-title {
  font-size: 2.8em;
  margin-bottom: 20px;
  color: #F39C12; /* Auxiliary color for emphasis */
  font-weight: bold;
  line-height: 1.2;
}

.page-index__title-description {
  font-size: 1.2em;
  margin-bottom: 40px;
  opacity: 0.9;
}

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

.page-index__cta-button {
  display: inline-block;
  padding: 15px 35px;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
}

.page-index__cta-button--primary {
  background: #F39C12;
  color: #2C3E50;
  border: 2px solid #F39C12;
}

.page-index__cta-button--primary:hover {
  background: #e08e0b;
  border-color: #e08e0b;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-index__cta-button--secondary {
  background: transparent;
  color: #F39C12;
  border: 2px solid #F39C12;
}

.page-index__cta-button--secondary:hover {
  background: #F39C12;
  color: #2C3E50;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-index__cta-button--small {
  padding: 10px 25px;
  font-size: 0.9em;
  border-radius: 5px;
}

.page-index__faq-section {
  padding: 60px 20px;
  color: #ffffff;
}

.page-index__faq-container {
  max-width: 900px;
  margin: 0 auto;
}

.page-index__faq-main-title {
  font-size: 2.2em;
  margin-bottom: 40px;
  color: #F39C12;
  font-weight: bold;
}

.page-index__faq-list {
  text-align: left;
}

.page-index__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-index__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  background: #34495e; /* Darker shade of primary for contrast */
  border: 1px solid #4a6c8e;
  border-radius: 5px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  position: relative;
}

.page-index__faq-question:hover {
  background: #4a6c8e;
  border-color: #5b80a6;
}

.page-index__faq-question h3 {
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 1.1em;
  font-weight: 600;
  line-height: 1.5;
  color: #ffffff;
  pointer-events: none;
}

.page-index__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  line-height: 1;
  color: #F39C12;
  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-index__faq-item.active .page-index__faq-toggle {
  color: #ffffff;
}

.page-index__faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease;
  padding: 0 15px;
  opacity: 0;
  background: #2C3E50; /* Primary brand color for answer background */
  color: #e0e0e0;
  border-radius: 0 0 5px 5px;
}

.page-index__faq-item.active .page-index__faq-answer {
  max-height: 2000px !important;
  padding: 20px 15px !important;
  opacity: 1;
}

.page-index__brand-section {
  padding: 60px 20px;
  background-color: #f0f0f0; /* Light background for brand section */
  color: #333333; /* Dark text for light background */
}

.page-index__brand-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-index__brand-title {
  font-size: 2.2em;
  margin-bottom: 20px;
  color: #2C3E50;
  font-weight: bold;
}

.page-index__brand-description {
  font-size: 1.1em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-index__brand-item {
  background: #ffffff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-index__brand-item-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  object-fit: cover;
  width: 100%;
  min-height: 200px; /* Ensure min size */
}

.page-index__brand-item h3 {
  font-size: 1.5em;
  color: #F39C12;
  margin-bottom: 15px;
  font-weight: bold;
}

.page-index__brand-item p {
  font-size: 1em;
  color: #555555;
}

.page-index__blog-section {
  padding: 60px 20px;
  color: #ffffff;
}

.page-index__blog-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-index__blog-title {
  font-size: 2.2em;
  margin-bottom: 20px;
  color: #F39C12;
  font-weight: bold;
}

.page-index__blog-description {
  font-size: 1.1em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.9;
}

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

.page-index__blog-item {
  background: #34495e; /* Darker shade of primary for blog card */
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: left;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index__blog-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-index__blog-link {
  text-decoration: none;
  color: inherit;
  display: block;
  padding-bottom: 20px;
}

.page-index__blog-item-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  margin-bottom: 15px;
  display: block;
}

.page-index__blog-item-title {
  font-size: 1.4em;
  color: #F39C12;
  margin: 0 20px 10px;
  font-weight: bold;
}

.page-index__blog-item-excerpt {
  font-size: 0.95em;
  color: #e0e0e0;
  margin: 0 20px 15px;
}

.page-index__blog-item-date {
  font-size: 0.85em;
  color: #a0a0a0;
  margin: 0 20px;
  display: block;
}

.page-index__blog-cta {
  margin-top: 40px;
  text-align: center;
}

.page-index__about-platform-section {
  padding: 60px 20px;
  background-color: #f0f0f0;
  color: #333333;
}

.page-index__about-platform-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-index__about-platform-title {
  font-size: 2.2em;
  margin-bottom: 20px;
  color: #2C3E50;
  font-weight: bold;
}

.page-index__about-platform-description {
  font-size: 1.1em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-index__feature-item {
  background: #ffffff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index__feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.page-index__feature-image {
  max-width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  width: 100%;
  min-height: 180px; /* Ensure min size */
}

.page-index__feature-item h3 {
  font-size: 1.5em;
  color: #2C3E50;
  margin-bottom: 15px;
  font-weight: bold;
}

.page-index__feature-item p {
  font-size: 1em;
  color: #555555;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-index__feature-link {
  display: inline-block;
  padding: 10px 20px;
  background: #F39C12;
  color: #2C3E50;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: background-color 0.3s ease;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
}

.page-index__feature-link:hover {
  background: #e08e0b;
}

.page-index__promotion-section {
  padding: 60px 20px;
  color: #ffffff;
}

.page-index__promotion-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-index__promotion-title {
  font-size: 2.2em;
  margin-bottom: 20px;
  color: #F39C12;
  font-weight: bold;
}

.page-index__promotion-description {
  font-size: 1.1em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.9;
}

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

.page-index__promotion-item {
  background: #34495e;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.page-index__promotion-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-index__promotion-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  margin-bottom: 15px;
}

.page-index__promotion-item h3 {
  font-size: 1.4em;
  color: #F39C12;
  margin: 0 20px 10px;
  font-weight: bold;
}

.page-index__promotion-item p {
  font-size: 0.95em;
  color: #e0e0e0;
  margin: 0 20px 20px;
  flex-grow: 1;
}

.page-index__promotion-cta {
  margin-top: 40px;
  text-align: center;
}

.page-index__support-section {
  padding: 60px 20px;
  background-color: #f0f0f0;
  color: #333333;
}

.page-index__support-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-index__support-title {
  font-size: 2.2em;
  margin-bottom: 20px;
  color: #2C3E50;
  font-weight: bold;
}

.page-index__support-description {
  font-size: 1.1em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-index__support-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.page-index__support-item {
  background: #ffffff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index__support-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.page-index__support-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: 20px;
  min-width: 200px; /* Enforce min size */
  min-height: 200px; /* Enforce min size */
}

.page-index__support-item h3 {
  font-size: 1.5em;
  color: #2C3E50;
  margin-bottom: 15px;
  font-weight: bold;
}

.page-index__support-item p {
  font-size: 1em;
  color: #555555;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-index__support-link {
  display: inline-block;
  padding: 10px 20px;
  background: #2C3E50;
  color: #ffffff;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: background-color 0.3s ease;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
}

.page-index__support-link:hover {
  background: #F39C12;
  color: #2C3E50;
}

/* 🚨 Desktop Video Section Styles (Must strictly adhere) */
.page-index__video-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  padding-top: var(--header-offset, 120px); /* Top spacing as per common fragment */
  background: linear-gradient(135deg, #1a2a3a 0%, #0d1a26 100%);
}

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

/* 🚨 Video Click Link Styles (Must strictly adhere) */
.page-index__video-link {
  display: block;
  text-decoration: none;
  position: relative;
  width: 100%;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index__video-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.page-index__video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio - 🚨 PageSpeed optimization: fixed aspect ratio to avoid CLS */
  height: 0;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.page-index__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 8px;
  object-fit: cover;
  pointer-events: none; /* Prevent video controls from blocking click event */
}

/* 🚨 Video Click Hint Overlay Styles (Optional, enhances UX) */
.page-index__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, 0.4);
  border-radius: 8px;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 1;
}

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

.page-index__video-click-hint {
  color: #ffffff;
  font-size: 18px;
  font-weight: bold;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  padding: 10px 20px;
  background: rgba(243, 156, 18, 0.8); /* Using auxiliary color for hint */
  border-radius: 5px;
  white-space: nowrap;
}

/* 🚨 Play Now Button Styles (Must strictly adhere, centered below video) */
.page-index__video-cta {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 30px;
}

.page-index__play-now-button {
  display: inline-block;
  padding: 15px 40px;
  background: #F39C12; /* Auxiliary color for CTA */
  color: #2C3E50; /* Primary color for text on auxiliary background */
  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, 0.2);
  border: none;
  cursor: pointer;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
}

.page-index__play-now-button:hover {
  background: #e08e0b;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.page-index__play-now-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* All images base responsive styles */
.page-index img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* All videos base responsive styles */
.page-index video,
.page-index__video {
  max-width: 100%;
  width: 100%;
  height: auto;
  display: block;
}

/* Video container base responsive styles */
.page-index__video-section,
.page-index__video-container,
.page-index__video-wrapper {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* All button base responsive styles */
.page-index__cta-button,
.page-index__btn-primary,
.page-index__btn-secondary,
.page-index a[class*="button"],
.page-index a[class*="btn"] {
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

/* Button container base responsive styles */
.page-index__cta-buttons,
.page-index__button-group,
.page-index__btn-container {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* 🚨 Mobile Responsive Design (Must strictly adhere) */
@media (max-width: 768px) {
  .page-index {
    font-size: 15px;
    line-height: 1.5;
  }
  
  .page-index__section,
  .page-index__brand-container,
  .page-index__blog-container,
  .page-index__about-platform-container,
  .page-index__promotion-container,
  .page-index__support-container,
  .page-index__title-container,
  .page-index__faq-container {
    padding-left: 15px;
    padding-right: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

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

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

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

  .page-index__cta-button {
    width: 100% !important;
    padding: 12px 25px;
    font-size: 1em;
  }

  .page-index__faq-main-title,
  .page-index__brand-title,
  .page-index__blog-title,
  .page-index__about-platform-title,
  .page-index__promotion-title,
  .page-index__support-title {
    font-size: 1.8em;
  }

  .page-index__faq-question {
    padding: 15px;
    flex-wrap: wrap;
  }
  
  .page-index__faq-question h3 {
    font-size: 1em;
    margin-bottom: 0;
    width: calc(100% - 40px);
  }
  
  .page-index__faq-toggle {
    margin-left: 10px;
    width: 24px;
    height: 24px;
    font-size: 20px;
  }
  
  .page-index__faq-answer {
    padding: 0 15px;
  }
  
  .page-index__faq-item.active .page-index__faq-answer {
    padding: 15px !important;
  }

  .page-index__brand-content,
  .page-index__blog-list,
  .page-index__platform-features,
  .page-index__promotion-grid,
  .page-index__support-features {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-index__brand-item-image,
  .page-index__blog-item-image,
  .page-index__feature-image,
  .page-index__promotion-image {
    height: auto;
    min-height: 200px;
  }

  /* 🚨 Video section mobile adaptation (Must strictly adhere) */
  .page-index__video-section {
    padding-top: var(--header-offset, 120px) !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-index__video-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
    overflow: hidden !important;
  }
  
  .page-index__video-link {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  
  .page-index__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    border-radius: 4px;
    overflow: hidden !important;
  }
  
  .page-index__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    border-radius: 4px;
    object-fit: contain; /* Use contain for mobile to ensure full video visibility */
  }
  
  .page-index__video-cta {
    margin-top: 20px;
    padding-left: 15px;
    padding-right: 15px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  
  .page-index__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-index__video-click-hint {
    font-size: 14px !important;
    padding: 8px 16px !important;
  }

  /* 🚨 Mobile image responsive adaptation (Must strictly adhere) */
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  
  /* 🚨 Mobile video responsive adaptation (Must strictly adhere) */
  .page-index video,
  .page-index__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-index__video-section,
  .page-index__video-container,
  .page-index__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  
  .page-index__video-section {
    padding-top: var(--header-offset, 120px) !important;
  }
  
  .page-index__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* 🚨 Mobile button responsive adaptation (Must strictly adhere) */
  .page-index__cta-button,
  .page-index__btn-primary,
  .page-index__btn-secondary,
  .page-index a[class*="button"],
  .page-index 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-index__cta-buttons,
  .page-index__button-group,
  .page-index__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-index__cta-buttons {
    flex-direction: column;
  }
}