/* ============================================
   video.css — Le fil vidéo 视频列表样式
   ============================================ */

/* ---------- 瀑布流容器 ---------- */
ul.video {
  list-style: none;
  margin: 0;
  padding: 0;
  column-count: 3;
  column-gap: 15px;
  width: 690px;
  margin-top: 20px;
}

/* ---------- 视频卡片 ---------- */
ul.video li {
  break-inside: avoid;
  margin-bottom: 15px;
  /* 增加间距 */
  background: #fff;
}

ul.video li a {
  text-decoration: none;
  /* 移除链接下划线 */
  display: block;
}

/* ---------- 缩略图容器 ---------- */
ul.video li .v-thumb {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  background: #f0f0f0;
}

ul.video li .v-thumb img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.35s ease;
}

ul.video li:hover .v-thumb img {
  transform: scale(1.05);
}

/* ---------- 播放按钮 ---------- */
ul.video li .v-thumb .play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.2s;
  z-index: 2;
}

ul.video li:hover .v-thumb .play-btn {
  background: rgba(255, 255, 255, 1);
  transform: translate(-50%, -50%) scale(1.1);
}

/* 三角形播放图标 */
ul.video li .v-thumb .play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 11px solid #333;
  margin-left: 3px;
}

/* ---------- 时长标签 ---------- */
ul.video li .v-thumb .v-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 11px;
  font-family: Arial, sans-serif;
  padding: 2px 4px;
  border-radius: 2px;
  z-index: 2;
}

/* ---------- 视频标题 ---------- */
ul.video li .v-title {
  display: block;
  padding: 10px 16px;
  font-size: 18px;
  font-family: "Playfair Display", Georgia, 'Times New Roman', serif;
  font-style: italic;
  color: #333;
  line-height: 28px;
  transition: color 0.2s;
}

ul.video li:hover .v-title {
  color: #6a0dad;
  /* 悬停时标题变色 */
}

/* 加载动画 */
.loader-spinner {
  display: inline-block;
  width: 28px;
  height: 28px;
  border: 3px solid #eee;
  border-top-color: #c00;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 992px) {
  ul.video {
    column-count: 2;
    width: 100%;
  }
}

@media (max-width: 576px) {
  ul.video {
    column-count: 2;
    column-gap: 6px;
  }

  ul.video li {
    margin-bottom: 8px;
  }

  ul.video li .v-title {
    font-size: 13px;
    padding: 6px 8px;
    line-height: 20px;
  }

  ul.video li .v-thumb .play-btn {
    width: 26px;
    height: 26px;
  }

  ul.video li .v-thumb .play-btn::after {
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 8px solid #333;
    margin-left: 2px;
  }
}

/* ---------- 手机端"加载更多"按钮 ---------- */
#load-more-btn {
  display: none;
  /* JS 控制显示 */
  margin: 20px auto 28px;
  width: 100%;
  max-width: 340px;
  padding: 12px 0;
  background: #fff;
  color: #333;
  font-size: 14px;
  font-family: Arial, sans-serif;
  border: 1.5px solid #ccc;
  border-radius: 4px;
  cursor: pointer;
  text-align: center;
  transition: background 0.2s, color 0.2s;
}

#load-more-btn:active {
  background: #f5f5f5;
}

#load-more-btn.loading {
  color: #999;
  pointer-events: none;
}

#load-more-btn .btn-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid #ddd;
  border-top-color: #c00;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
  margin-right: 6px;
}