/* ===== WATERFALL GALLERY STYLES ===== */

.waterfall-gallery {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
}

.waterfall-gallery__grid {
  display: flex;
  gap: 0; /* No gap between columns */
  align-items: flex-start;
}

/* 砖块式布局 */
.waterfall-gallery__grid--container {
  display: block;
  width: 100%;
}

.waterfall-gallery__brick-row {
  display: flex;
  width: 100%;
  margin-bottom: 0;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease;
}

.waterfall-gallery__brick-item {
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.waterfall-gallery__brick-item:hover {
  transform: scale(1.02);
  z-index: 1;
}

.waterfall-gallery__brick-image-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.waterfall-gallery__brick-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.waterfall-gallery__column {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0; /* No gap between items */
}

/* Gallery Items */
.waterfall-gallery__item {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
  cursor: default; /* 改为默认指针 */
  border-radius: 0; /* Removed rounded corners */
  overflow: hidden;
  box-shadow: none; /* Remove shadow to eliminate visual gap */
  margin: 0; /* Ensure no margin */
  padding: 0; /* Ensure no padding */
}

.waterfall-gallery__item--visible {
  opacity: 1;
  transform: translateY(0);
}

.waterfall-gallery__image-wrapper {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.waterfall-gallery__image {
  width: 100%;
  height: auto;
  display: block;
  margin: 0;
  padding: 0;
  border: none;
}

/* Overlay - 已禁用 */
.waterfall-gallery__overlay {
  display: none; /* 完全隐藏overlay */
}

.waterfall-gallery__info {
  width: 100%;
}

.waterfall-gallery__title {
  font-size: 1.1rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: 0.3rem;
  line-height: 1.3;
}

.waterfall-gallery__description {
  font-size: 0.85rem;
  opacity: 0.9;
  margin-bottom: 0.5rem;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.waterfall-gallery__album {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-small);
  font-size: 0.75rem;
  backdrop-filter: blur(10px);
  margin-bottom: 0.5rem;
}

.waterfall-gallery__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.waterfall-gallery__tag {
  padding: 0.15rem 0.4rem;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--border-radius-small);
  font-size: 0.7rem;
  backdrop-filter: blur(5px);
}

/* Orientation Specific Styles */
.waterfall-gallery__item--landscape .waterfall-gallery__overlay {
  padding: 1rem;
}

.waterfall-gallery__item--landscape .waterfall-gallery__title {
  font-size: 1rem;
}

.waterfall-gallery__item--landscape .waterfall-gallery__description {
  font-size: 0.8rem;
  -webkit-line-clamp: 1;
}

.waterfall-gallery__item--portrait .waterfall-gallery__overlay {
  padding: 1.5rem;
}

/* Loading States */
.waterfall-gallery__loading {
  display: none;
  text-align: center;
  padding: 3rem 0;
  color: var(--text-secondary);
}

.waterfall-gallery__loading .loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(0, 0, 0, 0.3);
  border-top: 3px solid var(--text-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

.waterfall-gallery__load-more {
  display: none;
  text-align: center;
  padding: 3rem 0 2rem;
}

.waterfall-gallery__load-more .btn {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* Responsive Design */
@media screen and (max-width: 1024px) {
  .waterfall-gallery {
    padding: 1.5rem;
  }

  .waterfall-gallery__grid {
    gap: 0; /* No gap */
  }

  .waterfall-gallery__column {
    gap: 0; /* No gap */
  }

  /* 砖块式布局响应式调整 */
  .waterfall-gallery__brick-row {
    height: auto !important; /* 在小屏幕上允许高度自适应 */
    flex-wrap: wrap;
  }

  .waterfall-gallery__brick-item {
    width: 50% !important; /* 小屏幕上两列显示 */
    height: auto !important; /* 允许高度自适应图片比例 */
  }

  .waterfall-gallery__brick-image {
    height: auto !important; /* 允许图片高度自适应 */
  }
}

@media screen and (max-width: 768px) {
  .waterfall-gallery {
    padding: 1rem;
  }

  .waterfall-gallery__grid {
    gap: 0; /* No gap */
  }

  .waterfall-gallery__column {
    gap: 0; /* No gap */
  }

  /* Mobile: Show overlay by default */
  .waterfall-gallery__overlay {
    opacity: 1;
    background: linear-gradient(
      to bottom,
      transparent 0%,
      rgba(0, 0, 0, 0.6) 70%
    );
  }

  .waterfall-gallery__title {
    font-size: 1rem;
  }

  .waterfall-gallery__description {
    font-size: 0.8rem;
  }

  .waterfall-gallery__item--landscape .waterfall-gallery__title {
    font-size: 0.9rem;
  }

  .waterfall-gallery__item--landscape .waterfall-gallery__description {
    font-size: 0.75rem;
  }

  /* 砖块式布局移动端调整 */
  .waterfall-gallery__brick-item {
    width: 100% !important; /* 移动端单列显示 */
    height: auto !important; /* 允许高度自适应图片比例 */
  }

  .waterfall-gallery__brick-image {
    height: auto !important; /* 允许图片高度自适应 */
  }
}

@media screen and (max-width: 480px) {
  .waterfall-gallery {
    padding: 0.5rem;
  }

  .waterfall-gallery__grid {
    gap: 0; /* No gap */
  }

  .waterfall-gallery__column {
    gap: 0; /* No gap */
  }

  .waterfall-gallery__overlay {
    padding: 1rem;
  }

  .waterfall-gallery__title {
    font-size: 0.95rem;
  }

  .waterfall-gallery__description {
    font-size: 0.75rem;
  }

  .waterfall-gallery__album {
    font-size: 0.7rem;
  }

  .waterfall-gallery__tag {
    font-size: 0.65rem;
  }

  /* 砖块式布局超小屏调整 */
  .waterfall-gallery__brick-item {
    height: auto !important; /* 允许高度自适应图片比例 */
  }
}

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

/* Masonry-like effect for different orientations */
.waterfall-gallery__item--portrait {
  /* 竖向图片稍微突出 */
}

.waterfall-gallery__item--landscape {
  /* 横向图片更紧凑 */
}

/* Staggered animation for items */
.waterfall-gallery__item:nth-child(1) { transition-delay: 0.1s; }
.waterfall-gallery__item:nth-child(2) { transition-delay: 0.2s; }
.waterfall-gallery__item:nth-child(3) { transition-delay: 0.3s; }
.waterfall-gallery__item:nth-child(4) { transition-delay: 0.4s; }
.waterfall-gallery__item:nth-child(5) { transition-delay: 0.5s; }
.waterfall-gallery__item:nth-child(6) { transition-delay: 0.6s; }

/* Hover effects enhancement */
.waterfall-gallery__item {
  transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.6s ease;
}

.waterfall-gallery__item:hover {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}