/* style/index.css */
/* 🚨 固定页头与主体间距：shared 的 body 已 padding-top: var(--header-offset)；页面禁止再写该变量。
   视频可在最顶，但 __video-section 仍仅用 10px 左右装饰顶距，不得再写整段 var(--header-offset)，以免与 body 双倍留白。 */
.page-index {
  background-color: #08160F; /* 背景 */
  color: #F2FFF6; /* Text Main */
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
}

.page-index__video-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  padding-top: 10px; /* 🚨 仅用小额顶距，禁止再写 var(--header-offset) */
  background-color: #08160F; /* 背景 */
}

.page-index__video-container {
  position: relative;
  width: 100%; /* 🚨 桌面端必须包含 width: 100% */
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}

.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, 0.2);
}

.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, 0.15);
}

.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 */
}

.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: #F2FFF6; /* Text Main */
  font-size: 18px;
  font-weight: bold;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  padding: 10px 20px;
  background: rgba(42, 209, 111, 0.8); /* 按钮渐变顶部色透明度 */
  border-radius: 5px;
  white-space: nowrap;
}

.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: linear-gradient(180deg, #2AD16F 0%, #13994A 100%); /* 按钮颜色 */
  color: #F2FFF6; /* Text Main */
  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, 0.25);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.page-index__play-now-button:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%); /* 反向渐变或加深 */
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}

/* General Section Styling */
.page-index__title-section,
.page-index__brand-section,
.page-index__faq-section,
.page-index__blog-section {
  padding: 60px 20px;
  max-width: 1200px;
  margin: 0 auto;
  box-sizing: border-box;
}

.page-index__title-container,
.page-index__brand-container,
.page-index__faq-container,
.page-index__blog-container {
  max-width: 100%;
  margin: 0 auto;
}

.page-index__main-title,
.page-index__brand-title,
.page-index__faq-title,
.page-index__blog-title {
  color: #F2FFF6; /* Text Main */
  text-align: center;
  margin-bottom: 30px;
  font-weight: bold;
  line-height: 1.2;
  font-size: clamp(28px, 4vw, 48px); /* 🚨 H1 字号使用 clamp */
}

.page-index__title-description {
  color: #A7D9B8; /* Text Secondary */
  text-align: center;
  font-size: 18px;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-index__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap; /* 允许换行 */
  margin-top: 30px;
}

.page-index__cta-button {
  display: inline-block;
  padding: 15px 35px;
  text-decoration: none;
  border-radius: 8px;
  font-size: 16px;
  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: nowrap;
  box-sizing: border-box; /* 🚨 按钮响应式适配 */
  max-width: 100%; /* 🚨 按钮响应式适配 */
  word-wrap: break-word; /* 🚨 按钮响应式适配 */
}

.page-index__cta-button--primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%); /* 按钮颜色 */
  color: #F2FFF6; /* Text Main */
}

.page-index__cta-button--primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.page-index__cta-button--secondary {
  background: #11271B; /* Card BG */
  color: #2AD16F; /* 按钮渐变顶部色 */
  border: 2px solid #2E7A4E; /* 边框 */
}

.page-index__cta-button--secondary:hover {
  background: #22C768; /* 辅助色 */
  color: #11271B; /* Card BG */
  border-color: #2AD16F;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

/* Brand Section */
.page-index__brand-intro-text {
  color: #A7D9B8; /* Text Secondary */
  font-size: 17px;
  text-align: center;
  margin-bottom: 50px;
  max-width: 900px;
  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-color: #11271B; /* Card BG */
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  border: 1px solid #2E7A4E; /* 边框 */
}

.page-index__brand-item-title {
  color: #F2FFF6; /* Text Main */
  font-size: 22px;
  margin-top: 0;
  margin-bottom: 15px;
  font-weight: bold;
}

.page-index__brand-item p {
  color: #A7D9B8; /* Text Secondary */
  font-size: 15px;
}

.page-index__brand-advantages-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-index__brand-advantages-list li {
  color: #A7D9B8; /* Text Secondary */
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
  font-size: 15px;
}

.page-index__brand-advantages-list li strong {
  color: #F2FFF6; /* Text Main */
}

.page-index__brand-advantages-list li::before {
  content: '✔';
  color: #2AD16F; /* 按钮渐变顶部色 */
  position: absolute;
  left: 0;
  top: 0;
  font-weight: bold;
}

/* FAQ Section */
.page-index__faq-list {
  margin-top: 40px;
}

details.page-index__faq-item {
  margin-bottom: 15px;
  border-radius: 10px;
  border: 1px solid #2E7A4E; /* 边框 */
  overflow: hidden;
  background-color: #11271B; /* Card BG */
  box-shadow: 0 2px 10px 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: 20px 25px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
  color: #F2FFF6; /* Text Main */
}
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-color: #1E3A2A; /* Divider */
}
.page-index__faq-qtext {
  flex: 1;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #F2FFF6; /* Text Main */
}
.page-index__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #2AD16F; /* 按钮渐变顶部色 */
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-index__faq-item .page-index__faq-answer {
  padding: 0 25px 20px;
  background-color: #0A4B2C; /* Deep Green */
  border-radius: 0 0 10px 10px;
}
details.page-index__faq-item .page-index__faq-answer p {
  color: #A7D9B8; /* Text Secondary */
  font-size: 15px;
}

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

.page-index__blog-item {
  background-color: #11271B; /* Card BG */
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  border: 1px solid #2E7A4E; /* 边框 */
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index__blog-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

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

.page-index__blog-image-wrapper {
  width: 100%;
  height: 250px; /* Fixed height for consistency */
  overflow: hidden;
}

.page-index__blog-item-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
  min-width: 200px; /* 🚨 最小尺寸要求 */
  min-height: 200px; /* 🚨 最小尺寸要求 */
}

.page-index__blog-item:hover .page-index__blog-item-image {
  transform: scale(1.05);
}

.page-index__blog-item-title {
  color: #F2FFF6; /* Text Main */
  font-size: 20px;
  padding: 15px 20px 0;
  margin: 0;
  font-weight: bold;
}

.page-index__blog-item-excerpt {
  color: #A7D9B8; /* Text Secondary */
  font-size: 14px;
  padding: 0 20px 10px;
  margin: 0;
}

.page-index__blog-item-date {
  color: #57E38D; /* Glow */
  font-size: 13px;
  padding: 0 20px 20px;
  display: block;
}

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

.page-index__view-all-button {
  display: inline-block;
  padding: 12px 30px;
  background: #2E7A4E; /* 边框 */
  color: #F2FFF6; /* Text Main */
  text-decoration: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.page-index__view-all-button:hover {
  background-color: #13994A; /* 按钮渐变底部色 */
  transform: translateY(-2px);
}

/* 🚨 移动端响应式设计 */
@media (max-width: 768px) {
  .page-index__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-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;
  }

  .page-index__title-section,
  .page-index__brand-section,
  .page-index__faq-section,
  .page-index__blog-section {
    padding: 40px 15px; /* 移动端内边距 */
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-index__main-title {
    font-size: clamp(24px, 7vw, 36px); /* 移动端H1字号调整 */
    margin-bottom: 20px;
  }

  .page-index__title-description {
    font-size: 16px;
    margin-bottom: 30px;
  }

  .page-index__cta-buttons {
    flex-direction: column; /* 移动端按钮垂直排列 */
    gap: 15px;
  }

  .page-index__cta-button {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 15px;
  }

  .page-index__brand-content {
    grid-template-columns: 1fr; /* 移动端单列布局 */
  }

  .page-index__brand-item {
    padding: 20px;
  }

  .page-index__brand-item-title {
    font-size: 20px;
    margin-bottom: 10px;
  }

  .page-index__brand-item p,
  .page-index__brand-advantages-list li {
    font-size: 14px;
  }

  details.page-index__faq-item summary.page-index__faq-question {
    padding: 15px;
  }
  .page-index__faq-qtext { font-size: 15px; }
  details.page-index__faq-item .page-index__faq-answer {
    padding: 0 15px 15px;
  }

  .page-index__blog-list {
    grid-template-columns: 1fr; /* 移动端单列布局 */
    gap: 20px;
  }

  .page-index__blog-image-wrapper {
    height: 200px; /* 移动端图片高度调整 */
  }

  .page-index__blog-item-title {
    font-size: 18px;
    padding: 10px 15px 0;
  }

  .page-index__blog-item-excerpt {
    font-size: 13px;
    padding: 0 15px 8px;
  }

  .page-index__blog-item-date {
    font-size: 12px;
    padding: 0 15px 15px;
  }

  .page-index__view-all-button {
    width: 100% !important;
    max-width: 100% !important;
    padding: 10px 20px;
    font-size: 15px;
    box-sizing: border-box !important;
  }

  /* 🚨 移动端图片响应式适配 */
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-index__section,
  .page-index__card,
  .page-index__container,
  .page-index__blog-item,
  .page-index__brand-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* 🚨 移动端视频响应式适配 */
  .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;
    overflow: hidden !important;
  }
}

/* 🚨 智能颜色对比度保障 - 确保文字在深色背景下清晰 */
/* Body背景色 #08160F 是深色，所有文字都应为浅色 */
h1, h2, h3, h4, h5, h6,
.page-index__main-title,
.page-index__brand-title,
.page-index__faq-title,
.page-index__blog-title,
.page-index__brand-item-title,
.page-index__blog-item-title,
.page-index__play-now-button,
.page-index__cta-button--primary,
.page-index__view-all-button {
  color: #F2FFF6; /* Text Main */
}

p, li, span,
.page-index__title-description,
.page-index__brand-intro-text,
.page-index__brand-item p,
.page-index__brand-advantages-list li,
.page-index__blog-item-excerpt {
  color: #A7D9B8; /* Text Secondary */
}

.page-index__cta-button--secondary {
  color: #2AD16F; /* 按钮渐变顶部色 */
}

.page-index__video-click-hint,
.page-index__faq-qtext {
  color: #F2FFF6; /* Text Main */
}

.page-index__faq-toggle {
  color: #2AD16F; /* 按钮渐变顶部色 */
}

.page-index__blog-item-date {
  color: #57E38D; /* Glow */
}