/* === 车机壁纸 - 壁纸墙核心样式 === */

/* 壁纸墙容器 */
.wallpaper-wall {
  margin: 0 auto;
  max-width: var(--container-max);
  padding: 0 var(--container-padding);
}

/* 瀑布流模式 */
.wallpaper-masonry {
  columns: 4;
  column-gap: 16px;
}

@media (max-width: 1200px) {
  .wallpaper-masonry { columns: 3; }
}
@media (max-width: 900px) {
  .wallpaper-masonry { columns: 2; }
}

/* 网格模式 */
.wallpaper-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

@media (max-width: 1200px) {
  .wallpaper-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .wallpaper-grid { grid-template-columns: repeat(2, 1fr); }
}

/* 壁纸卡片（瀑布流中） */
.wallpaper-masonry .wallpaper-card {
  break-inside: avoid;
  margin-bottom: 16px;
}

/* 壁纸卡片通用 */
.wallpaper-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  cursor: pointer;
}

.wallpaper-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border);
}

.wallpaper-card:active {
  transform: translateY(-1px);
}

.wallpaper-card .card-image {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.wallpaper-card .card-image img {
  width: 100%;
  display: block;
  transition: transform 0.4s ease;
}

.wallpaper-card:hover .card-image img {
  transform: scale(1.05);
}

/* 卡片悬浮信息 */
.wallpaper-card .card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 50%,
    rgba(0, 0, 0, 0.65) 100%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px;
}

.wallpaper-card:hover .card-overlay {
  opacity: 1;
}

.card-overlay .card-title {
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.card-overlay .card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.75);
  font-size: 11px;
}

.card-overlay .card-download {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.card-overlay .card-download:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: scale(1.1);
}

/* 卡片分辨率标签 */
.wallpaper-card .resolution-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--glass-bg-light);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: 3px 8px;
  font-size: 11px;
  color: var(--text-inverse);
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.wallpaper-card:hover .resolution-badge {
  opacity: 1;
}

/* 响应式调整 */
@media (max-width: 640px) {
  .wallpaper-wall {
    padding: 0 8px;
  }

  .wallpaper-masonry,
  .wallpaper-grid {
    columns: 2;
    grid-template-columns: repeat(2, 1fr);
    column-gap: 8px;
    gap: 8px;
  }

  .wallpaper-masonry .wallpaper-card {
    margin-bottom: 8px;
  }

  .wallpaper-card {
    border-radius: var(--radius-sm);
  }

  /* 手机端常显标题 */
  .wallpaper-card .card-overlay {
    opacity: 1;
    background: linear-gradient(
      180deg,
      transparent 60%,
      rgba(0, 0, 0, 0.5) 100%
    );
    padding: 10px;
  }

  .card-overlay .card-title {
    font-size: 12px;
  }

  .card-overlay .card-meta {
    font-size: 10px;
    gap: 6px;
  }

  .card-overlay .card-download {
    width: 30px; height: 30px;
    top: 8px; right: 8px;
  }

  .wallpaper-card:hover { transform: none; }
  .wallpaper-card:active { transform: scale(0.98); }

  .wallpaper-card:hover .card-image img {
    transform: none;
  }

  .wallpaper-card .resolution-badge {
    opacity: 1;
    font-size: 10px;
    top: 6px; left: 6px;
    padding: 2px 6px;
  }
}

/* 4K/2K标签 */
.quality-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: #6366f1;
  color: white;
  border-radius: var(--radius-full);
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 600;
  z-index: 2;
}

.quality-tag.hd { background: #f59e0b; }
.quality-tag.fhd { background: #3b82f6; }
.quality-tag.qhd { background: #8b5cf6; }
.quality-tag.uhd { background: #22c55e; }

@media (max-width: 640px) {
  .quality-tag { font-size: 9px; padding: 1px 6px; top: 6px; left: 6px; }
}

/* 收藏/点赞按钮 */
.card-actions {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 2;
}

.wallpaper-card:hover .card-actions {
  opacity: 1;
}

@media (max-width: 640px) {
  .card-actions { opacity: 1; }
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: var(--space-lg) 0;
  flex-wrap: wrap;
}

.pagination button {
  width: 40px; height: 40px;
  border-radius: var(--radius);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pagination button:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.pagination button.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.pagination button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}