/* 加载动画样式 */
.masonry-loading {
  position: relative;
  min-height: 200px;
}

.masonry-loading::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #3498db;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 横排自适应布局样式 */
#qsl-masonry {
  width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
}

.qsl-card-item {
  width: 250px;
  margin: 0 0.5rem 1rem 0.5rem;
  /* 移除固定高度，让卡片根据内容自适应高度 */
}

.qsl-card-item .card {
  margin-bottom: 0;
  border: none;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  background: #fff;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.qsl-card-item .card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.18);
}

.qsl-card-item .card-img-top {
  border-radius: 12px 12px 0 0;
  transition: all 0.3s ease;
  width: 100%;
  /* 移除固定高度和object-fit属性，让图片保持原始比例 */
  height: auto;
  object-fit: unset;
  /* 添加一些优化样式以提高图片显示效果 */
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  /* 确保图片在容器中居中显示 */
  display: block;
  margin: 0 auto;
}

.qsl-card-item .card:hover .card-img-top {
  transform: scale(1.03);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.qsl-card-item .card-body {
  padding: 1.25rem;
  text-align: center;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.qsl-card-item .card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: #2c3e50;
}

.qsl-card-item .card-text {
  font-size: 0.9rem;
  color: #7f8c8d;
  line-height: 1.5;
  flex-grow: 1;
}

/* 图片查看器样式优化 */
.lb-data .lb-caption {
  font-size: 1.1rem;
  font-weight: 500;
}

/* 响应式调整 */
@media (max-width: 1200px) {
  .qsl-card-item {
    width: 220px;
    margin: 0 0.4rem 1rem 0.4rem;
  }
  
  /* 移除固定高度 */
}

@media (max-width: 992px) {
  .qsl-card-item {
    width: 200px;
    margin: 0 0.3rem 1rem 0.3rem;
  }
  
  /* 移除固定高度 */
}

@media (max-width: 768px) {
  .qsl-card-item {
    width: 180px;
    margin: 0 0.25rem 1rem 0.25rem;
  }
  
  /* 移除固定高度 */
  
  .qsl-card-item .card-title {
    font-size: 1rem;
  }
  
  .qsl-card-item .card-text {
    font-size: 0.85rem;
  }
}

@media (max-width: 576px) {
  .qsl-card-item {
    width: 100%;
    margin: 0 0 1rem 0;
  }
  
  /* 移除固定高度 */
  
  .qsl-card-item .card-title {
    font-size: 1.1rem;
  }
  
  .qsl-card-item .card-text {
    font-size: 0.9rem;
  }
}

/* 超小屏幕优化 */
@media (max-width: 400px) {
  /* 移除固定高度 */
}