/* style/index.css */

/* Body background color from shared.css, assuming it's light for default text #333333 */
.page-index {
  color: var(--text-main, #333333);
  background: var(--bg-color, #F5F7FA);
}

.page-index__main-title {
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-align: center;
  color: var(--primary-color, #E53935);
  max-width: 900px;
  margin: 0 auto 15px;
  /* clamp for responsive font size, avoiding fixed large values */
  font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
}

.page-index__intro-text {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 30px;
  font-size: 1.1rem;
  line-height: 1.5;
  color: var(--text-main, #333333);
}

/* 🚨 桌面端视频区域样式（必须严格遵守） */
.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) 以免双倍空白 */
  padding-top: 10px;
  background: var(--bg-color, #F5F7FA);
}

.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;
}

/* 🚨 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;
}

.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 */
}

/* 🚨 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, 0.3);
  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(0, 123, 255, 0.8);
  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: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
  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, 0.15);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.page-index__play-now-button:hover {
  background: linear-gradient(180deg, #E53935 0%, #FF5A4F 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.page-index__play-now-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* Module 2: Promo/GifCode Area */
.page-index__promo-dark {
  background: #2c2c2c;
  padding: 24px 16px;
  color: #ffffff; /* Text color for dark background */
}

.page-index__gifcode-tabs {
  max-width: 1250px;
  margin: 0 auto;
  padding: 20px 0;
}

.page-index__gifcode-title {
  color: var(--primary-color, #E53935);
  text-align: center;
  text-transform: uppercase;
  margin-bottom: 25px;
  font-size: 1.8rem;
}

.page-index__gifcode-tab-nav {
  display: flex;
  justify-content: center;
  gap: 24px;
  list-style: none;
  padding: 0;
  margin: 16px 0 30px;
}

.page-index__gifcode-tab-nav a {
  color: #fff;
  text-decoration: none;
  text-transform: uppercase;
  padding: 8px 4px;
  border-bottom: 2px solid transparent;
  font-weight: bold;
  transition: all 0.3s ease;
  cursor: pointer;
}

.page-index__gifcode-tab-nav a.is-active {
  color: var(--primary-color, #E53935);
  border-bottom-color: var(--primary-color, #E53935);
}

.page-index__gifcode-tab-nav a:hover {
  color: var(--primary-color, #E53935);
}

.page-index__gifcode-panel {
  display: none;
}

.page-index__gifcode-panel.is-active {
  display: block;
}

.page-index__gifcode-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  max-width: 1250px;
  margin: 0 auto;
  justify-content: center;
}

.page-index__gifcode-col {
  flex: 1 1 calc(50% - 6px); /* Desktop 2 columns */
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.page-index__gifcode-img {
  width: 100%;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.page-index__gifcode-img img {
  display: block;
  width: 100%;
  aspect-ratio: 370 / 127; /* Maintain aspect ratio */
  object-fit: cover;
  transition: transform 0.3s;
  border-radius: 4px;
}

.page-index__gifcode-img:hover img {
  transform: scale(1.03);
}

.page-index__blog-section-title {
  color: var(--primary-color, #E53935);
  text-align: center;
  margin: 40px 0 20px;
  font-size: 1.5rem;
  font-weight: bold;
}

/* Module 3: Latest Articles Slider */
.page-index__blog-slider {
  padding: 32px 0 60px;
  background: var(--bg-color, #F5F7FA);
}

.page-index__blog-slider-wrap {
  position: relative;
  max-width: 1250px;
  margin: 0 auto;
  padding: 0 40px;
}

.page-index__blog-slider-track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none; /* Firefox */
  -webkit-overflow-scrolling: touch;
}

.page-index__blog-slider-track::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

.page-index__post-item {
  flex: 0 0 calc((100% - (16px * 4)) / 5); /* 5 cards visible, 4 gaps */
  scroll-snap-align: start;
  min-width: 0;
  background: var(--card-bg, #FFFFFF);
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s ease;
}

.page-index__post-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.page-index__post-box {
  position: relative;
  background: var(--card-bg, #FFFFFF);
  border-radius: 4px;
  overflow: hidden;
  height: 100%; /* Ensure box takes full height for layout */
  display: flex;
  flex-direction: column;
}

.page-index__post-image {
  position: relative;
  width: 100%;
}

.page-index__post-cover {
  position: relative;
  padding-top: 120px; /* Fixed height for cover */
  overflow: hidden;
}

.page-index__post-cover-link {
  display: block;
  position: absolute;
  inset: 0;
}

.page-index__post-cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.page-index__post-cover-link:hover img {
  transform: scale(1.05);
}

.page-index__post-text {
  padding: 15px;
  text-align: center;
  color: var(--text-main, #333333);
  flex-grow: 1; /* Allow text content to grow */
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-index__post-title {
  margin: 0 0 8px;
  font-size: 1.1rem;
  line-height: 1.3;
  font-weight: bold;
}

.page-index__post-title a {
  color: var(--primary-color, #E53935);
  text-decoration: none;
  transition: color 0.3s;
}

.page-index__post-title a:hover {
  color: var(--secondary-color, #FF5A4F);
}

.page-index__post-divider {
  width: 40px;
  height: 2px;
  background: var(--primary-color, #E53935);
  margin: 8px auto;
}

.page-index__post-excerpt {
  color: var(--text-main, #333333);
  font-size: 0.9rem;
  line-height: 1.4;
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2; /* Limit to 2 lines */
  -webkit-box-orient: vertical;
}

.page-index__post-date {
  position: absolute;
  top: 8px;
  left: 8px;
  background: #ffffff;
  border: 2px solid var(--primary-color, #E53935);
  padding: 4px 6px;
  text-align: center;
  font-size: 12px;
  line-height: 1.2;
  border-radius: 2px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.page-index__post-date-day {
  display: block;
  font-weight: 700;
  color: var(--text-main, #333333);
}

.page-index__post-date-month {
  display: block;
  font-size: 10px;
  color: #666;
  text-transform: uppercase;
}

.page-index__blog-slider-prev,
.page-index__blog-slider-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border-color, #E0E0E0);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--text-main, #333333);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  z-index: 2;
}

.page-index__blog-slider-prev:hover,
.page-index__blog-slider-next:hover {
  background: var(--primary-color, #E53935);
  color: #ffffff;
  border-color: var(--primary-color, #E53935);
}

.page-index__blog-slider-prev {
  left: 0;
}

.page-index__blog-slider-next {
  right: 0;
}

/* 🚨 移动端响应式设计（必须严格遵守） */
@media (max-width: 1250px) {
  .page-index__blog-slider-wrap {
    padding: 0 20px;
  }
}

@media (max-width: 849px) {
  .page-index__post-item {
    flex: 0 0 calc((100% - (16px * 2)) / 3); /* 3 cards visible, 2 gaps */
  }
}

@media (max-width: 768px) {
  .page-index__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
    margin-bottom: 10px;
  }

  .page-index__intro-text {
    font-size: 1rem;
    margin-bottom: 20px;
    padding: 0 10px;
  }

  .page-index__video-section {
    padding-top: 10px !important; /* body 已承担 --header-offset，此处禁止 var(--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;
  }

  /* 🚨 视频链接移动端适配（必须严格遵守） */
  .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; /* Mobile use contain to ensure video is fully visible */
  }

  /* 🚨 Play Now按钮移动端响应式适配（必须严格遵守） */
  .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;
  }

  /* 🚨 视频点击提示遮罩层移动端适配 */
  .page-index__video-click-hint {
    font-size: 14px !important;
    padding: 8px 16px !important;
  }

  /* GifCode Tabs Mobile */
  .page-index__promo-dark {
    padding: 20px 15px;
  }

  .page-index__gifcode-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
  }

  .page-index__gifcode-tab-nav {
    gap: 15px;
    margin: 10px 0 20px;
  }

  .page-index__gifcode-tab-nav a {
    font-size: 0.9rem;
    padding: 6px 2px;
  }

  .page-index__gifcode-col {
    flex: 1 1 100%; /* Mobile single column */
  }

  .page-index__gifcode-row {
    gap: 8px;
  }

  .page-index__blog-section-title {
    font-size: 1.2rem;
    margin: 30px 0 15px;
  }

  /* Blog Slider Mobile */
  .page-index__blog-slider-wrap {
    padding: 0 15px;
  }

  .page-index__post-item {
    flex: 0 0 100%; /* 1 card visible */
  }

  .page-index__blog-slider-prev,
  .page-index__blog-slider-next {
    width: 30px;
    height: 30px;
    font-size: 20px;
  }

  .page-index__post-text {
    padding: 10px;
  }

  .page-index__post-title {
    font-size: 1rem;
  }

  .page-index__post-excerpt {
    font-size: 0.8rem;
  }

  .page-index__post-date {
    font-size: 10px;
    padding: 3px 5px;
  }

  .page-index__post-date-month {
    font-size: 9px;
  }
}

@media (max-width: 549px) {
  .page-index__post-item {
    flex: 0 0 100%; /* Always 1 card on smallest screens */
  }
}

/* Ensure all images are responsive and do not overflow */
.page-index img {
  max-width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 768px) {
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-index__section,
  .page-index__card,
  .page-index__container,
  .page-index__gifcode-img,
  .page-index__post-item,
  .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;
  }

  /* Specific overrides for elements that might have 0 padding by default */
  .page-index__gifcode-tabs {
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  .page-index__gifcode-row {
    padding-left: 0 !important;
    padding-right: 0 !important;
  }
}