/* style/index.css */

/* Custom CSS Variables from palette */
:root {
    --primary-color: #11A84E;
    --secondary-color: #22C768;
    --button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    --card-bg: #11271B;
    --body-bg: #08160F;
    --text-main: #F2FFF6;
    --text-secondary: #A7D9B8;
    --border-color: #2E7A4E;
    --glow-color: #57E38D;
    --gold-color: #F2C14E;
    --divider-color: #1E3A2A;
    --deep-green-color: #0A4B2C;
    --primary-color-rgb: 17, 168, 78; /* RGB for primary-color */
}

/* Base styles for page-index to ensure light text on dark background */
.page-index {
    background-color: var(--body-bg); /* Use specified background color */
    color: var(--text-main); /* Ensure light text on dark background */
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

/* General section styling */
.page-index section {
    padding: 60px 20px;
    margin-bottom: 0; /* Sections should not have bottom margin by default */
}

.page-index h1,
.page-index h2,
.page-index h3 {
    color: var(--text-main);
    font-weight: bold;
    margin-bottom: 20px;
    line-height: 1.2;
}

.page-index p {
    color: var(--text-secondary);
    margin-bottom: 15px;
}

/* General container for content */
.page-index__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px; /* Add some horizontal padding */
    box-sizing: border-box;
}

/* General CTA button styles */
.page-index__cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: var(--button-gradient);
    color: #ffffff; /* White text for buttons */
    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;
    margin: 10px;
}

.page-index__cta-button:hover {
    background: linear-gradient(180deg, var(--deep-green-color) 0%, var(--primary-color) 100%); /* Slightly reverse gradient on hover */
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.page-index__btn-primary {
    background: var(--button-gradient);
    color: #ffffff;
}

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

.page-index__btn-secondary:hover {
    background: var(--primary-color);
    color: #ffffff;
}


/* 🚨 视频区域样式 */
.page-index__video-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  /* 🚨 页头整段高度由 shared 的 body { padding-top: var(--header-offset); } 承担；此处仅用小额顶距，禁止再写 var(--header-offset) 以以免双倍空白 */
  padding-top: 10px; /* Small top padding */
  background-color: var(--deep-green-color); /* A slightly different dark background */
}

.page-index__video-container {
  position: relative;
  width: 100%; /* 🚨 desktop width: 100% MUST be present */
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-sizing: border-box; /* Ensure padding/border is included in width */
}

/* 🚨 视频点击链接样式（必须严格遵守） */
.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;
  border-radius: 8px;
  overflow: hidden; /* Ensure rounded corners for video */
}

.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 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, 0.3);
}

.page-index__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-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, 0.5); /* Darker overlay for better contrast */
  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, 0.8);
  padding: 10px 20px;
  background: rgba(var(--primary-color-rgb), 0.8); /* Use primary color with transparency */
  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-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: var(--button-gradient);
  color: #ffffff;
  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;
}

.page-index__play-now-button:hover {
  background: linear-gradient(180deg, var(--deep-green-color) 0%, var(--primary-color) 100%);
  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);
}


/* Module 1: H1 Title + CTA Buttons */
.page-index__title-section {
    padding: 80px 20px;
    text-align: center;
    background-color: var(--deep-green-color); /* Consistent dark background */
}

.page-index__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem); /* Using clamp for responsive font size */
    margin-bottom: 25px;
    color: var(--gold-color); /* Gold color for main title */
    text-shadow: 0 0 15px rgba(242, 193, 78, 0.5); /* Subtle glow */
}

.page-index__title-description {
    font-size: 1.15rem;
    max-width: 800px;
    margin: 0 auto 40px auto;
    color: var(--text-secondary);
}

.page-index__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
}


/* Module 2: FAQ Section */
.page-index__faq-section {
    background-color: var(--body-bg); /* Dark background */
    padding: 80px 20px;
}

.page-index__faq-main-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.2rem;
    color: var(--text-main);
}

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

/* details as FAQ card */
details.page-index__faq-item {
  margin-bottom: 15px;
  border-radius: 8px; /* Slightly larger border-radius */
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--card-bg); /* Darker card background */
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}
details.page-index__faq-item summary.page-index__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px; /* Increased padding */
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
  color: var(--text-main); /* Light text for question */
}
details.page-index__faq-item summary.page-index__faq-question::-webkit-details-marker {
  display: none;
}
details.page-index__faq-item summary.page-index__faq-question:hover {
  background: var(--deep-green-color); /* Slightly lighter dark on hover */
}
.page-index__faq-qtext {
  flex: 1;
  font-size: 1.1rem; /* Slightly larger font size */
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--text-main); /* Light text for question */
}
.page-index__faq-toggle {
  font-size: 28px; /* Larger toggle icon */
  font-weight: bold;
  color: var(--glow-color); /* Green glow for toggle */
  flex-shrink: 0;
  margin-left: 20px; /* Increased margin */
  width: 32px; /* Larger toggle area */
  text-align: center;
}
details.page-index__faq-item .page-index__faq-answer {
  padding: 0 25px 25px;
  background: var(--deep-green-color); /* Darker background for answer */
  border-radius: 0 0 8px 8px;
  color: var(--text-secondary); /* Secondary text color for answer */
}
details.page-index__faq-item .page-index__faq-answer p {
    margin-bottom: 0; /* No bottom margin for last paragraph in answer */
}
details.page-index__faq-item .page-index__faq-answer a {
    color: var(--glow-color); /* Link color in FAQ answer */
    text-decoration: underline;
}
details.page-index__faq-item .page-index__faq-answer a:hover {
    color: var(--gold-color);
}


/* Module 3: Brand Introduction */
.page-index__brand-section {
    background-color: var(--deep-green-color); /* Darker background */
    padding: 80px 20px;
    text-align: center;
}

.page-index__brand-title {
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: var(--text-main);
}

.page-index__brand-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.page-index__brand-item {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

.page-index__brand-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-index__brand-item img {
    width: 100%;
    height: 200px; /* Fixed height for consistency */
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 25px;
    border: 1px solid var(--border-color);
}

.page-index__brand-item-title {
    font-size: 1.5rem;
    color: var(--text-main);
    margin-bottom: 15px;
}

.page-index__brand-item p {
    color: var(--text-secondary);
    font-size: 1rem;
}
.page-index__brand-item a {
    color: var(--glow-color);
    text-decoration: underline;
}
.page-index__brand-item a:hover {
    color: var(--gold-color);
}


/* Module 4: Blog List */
.page-index__blog-section {
    background-color: var(--body-bg); /* Dark background */
    padding: 80px 20px;
}

.page-index__blog-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.2rem;
    color: var(--text-main);
}

.page-index__blog-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

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

.page-index__blog-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-index__blog-item img {
    width: 100%;
    height: 220px; /* Fixed height for blog images */
    object-fit: cover;
    border-bottom: 1px solid var(--divider-color);
}

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

.page-index__blog-link {
    text-decoration: none;
    display: block;
}

.page-index__blog-item-title {
    font-size: 1.35rem;
    color: var(--text-main);
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

.page-index__blog-link:hover .page-index__blog-item-title {
    color: var(--glow-color); /* Change title color on link hover */
}

.page-index__blog-item-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.page-index__blog-item-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: block;
}

.page-index__blog-cta {
    text-align: center;
    margin-top: 50px;
}


/* 🚨 移动端响应式设计（必须严格遵守） */
@media (max-width: 768px) {
  .page-index section {
      padding: 40px 15px; /* Adjusted padding for mobile */
  }

  /* 🚨 视频区域移动端适配 */
  .page-index__video-section {
    padding-top: 10px !important; /* Small top padding, body handles --header-offset */
    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;
  }
  
  .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;
    margin: 0; /* Remove horizontal margin */
  }
  
  .page-index__video-click-hint {
    font-size: 14px !important;
    padding: 8px 16px !important;
  }

  /* 🚨 H1 Title + CTA Buttons mobile adaptation */
  .page-index__main-title {
      font-size: 2rem;
  }

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

  .page-index__cta-buttons {
      flex-direction: column; /* Stack buttons vertically on mobile */
      gap: 15px;
      padding: 0 15px;
      max-width: 100% !important;
      width: 100% !important;
      box-sizing: border-box !important;
  }

  .page-index__cta-button {
      max-width: 100% !important;
      width: 100% !important;
      box-sizing: border-box !important;
      padding: 12px 25px !important;
      font-size: 16px !important;
      white-space: normal !important;
      word-wrap: break-word !important;
      margin: 0; /* Remove horizontal margin */
  }

  /* 🚨 FAQ mobile adaptation */
  .page-index__faq-main-title,
  .page-index__brand-title,
  .page-index__blog-title {
      font-size: 1.8rem;
      margin-bottom: 30px;
  }

  details.page-index__faq-item summary.page-index__faq-question {
    padding: 15px 20px;
  }
  .page-index__faq-qtext { font-size: 1rem; }
  .page-index__faq-toggle { font-size: 24px; margin-left: 15px; width: 28px;}
  details.page-index__faq-item .page-index__faq-answer {
    padding: 0 20px 20px;
  }
  
  /* 🚨 Brand section mobile adaptation */
  .page-index__brand-grid {
      grid-template-columns: 1fr; /* Single column on mobile */
  }
  .page-index__brand-item {
      padding: 25px;
  }
  .page-index__brand-item img {
      
  }
  .page-index__brand-item-title {
      font-size: 1.3rem;
  }

  /* 🚨 Blog list mobile adaptation */
  .page-index__blog-list {
      grid-template-columns: 1fr; /* Single column on mobile */
  }
  .page-index__blog-item img {
      
  }
  .page-index__blog-item-title {
      font-size: 1.2rem;
  }
  .page-index__blog-content {
      padding: 20px;
  }
  .page-index__blog-cta {
      margin-top: 30px;
  }

  /* 🚨 General image and container responsiveness for mobile */
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-index__container,
  .page-index__video-section,
  .page-index__video-container,
  .page-index__video-wrapper,
  .page-index__title-section,
  .page-index__faq-section,
  .page-index__faq-list,
  .page-index__brand-section,
  .page-index__brand-grid,
  .page-index__blog-section,
  .page-index__blog-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: hidden !important; /* Prevent horizontal scroll */
  }
  .page-index__faq-list, .page-index__brand-grid, .page-index__blog-list {
      padding-left: 0;
      padding-right: 0;
  }
}