/* ========== 相册页 ==========
   瀑布流用 CSS 多列实现，图片高度自适应；卡片走玻璃底（配合 glass.css）。
   hover 只做描边和轻微提亮，不做位移缩放。
   ====================================== */

:root {
  --photo-text: #2a2a33;
  --photo-sub: #6a6a76;
  --photo-line: rgba(0, 0, 0, .1);
}
[data-theme='dark'] {
  --photo-text: rgba(255, 255, 255, .92);
  --photo-sub: rgba(255, 255, 255, .6);
  --photo-line: rgba(255, 255, 255, .14);
}
[data-theme='lilac'] {
  --photo-text: #3a3250;
  --photo-sub: #6b6288;
  --photo-line: rgba(139, 124, 246, .18);
}

/* ---------------- 分组筛选 ---------------- */
.photo-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 18px;
}

.photo-chip {
  border: 1px solid var(--photo-line);
  background: transparent;
  color: var(--photo-sub);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 13px;
  line-height: 1.4;
  cursor: pointer;
  transition: color .2s ease, background-color .2s ease, border-color .2s ease;
}
.photo-chip em {
  font-style: normal;
  font-size: 11px;
  opacity: .7;
  margin-left: 2px;
}
.photo-chip:hover {
  color: var(--brand, #5b5bd6);
  border-color: var(--brand, #5b5bd6);
}
.photo-chip.is-active {
  color: #fff;
  background: var(--brand, #5b5bd6);
  border-color: var(--brand, #5b5bd6);
}
.photo-chip.is-active em {
  opacity: .85;
}

/* ---------------- 瀑布流 ---------------- */
.photo-grid {
  column-count: 3;
  column-gap: 14px;
}

.photo-item {
  break-inside: avoid;
  -webkit-column-break-inside: avoid;
  page-break-inside: avoid;
  display: block;
  margin: 0 0 14px;
  padding: 6px 6px 0;
  border-radius: 12px;
  overflow: hidden;
  cursor: zoom-in;
  opacity: 0;
  transform: none;
  transition: opacity .3s ease, border-color .2s ease, box-shadow .2s ease;
}
.photo-item.is-ready {
  opacity: 1;
}
.photo-item:hover {
  transform: none;
  border-color: var(--brand, #5b5bd6);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .14);
}

.photo-item img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  background: rgba(0, 0, 0, .04);
}

.photo-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 4px 9px;
  font-size: 13px;
  color: var(--photo-text);
}
.photo-meta b {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.photo-meta i {
  font-style: normal;
  flex: 0 0 auto;
  font-size: 11px;
  color: var(--photo-sub);
}

.photo-none {
  padding: 30px 0;
  text-align: center;
  color: var(--photo-sub);
  font-size: 14px;
}

/* ---------------- 空状态 ---------------- */
.photo-empty {
  padding: 48px 16px;
  text-align: center;
  color: var(--photo-sub);
}
.photo-empty-icon {
  font-size: 44px;
  line-height: 1;
  margin-bottom: 12px;
}
.photo-empty-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--photo-text);
  margin: 0 0 8px;
}
.photo-empty-tip {
  font-size: 13px;
  line-height: 1.9;
  margin: 0;
}
.photo-empty-tip code {
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(125, 125, 125, .14);
  font-size: 12px;
}

/* ---------------- 大图查看 ---------------- */
.photo-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, .82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.photo-lightbox.is-open {
  display: flex;
}

.plb-img {
  max-width: 88vw;
  max-height: 84vh;
  border-radius: 8px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, .5);
  cursor: zoom-out;
}

.plb-close,
.plb-nav {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, .28);
  background: rgba(0, 0, 0, .38);
  color: #fff;
  border-radius: 8px;
  cursor: pointer;
  line-height: 1;
  transition: background-color .2s ease;
}
.plb-close:hover,
.plb-nav:hover {
  background: var(--brand, #5b5bd6);
}

.plb-close {
  top: 20px;
  right: 20px;
  width: 38px;
  height: 38px;
  font-size: 17px;
}
.plb-nav {
  top: 50%;
  margin-top: -24px;
  width: 44px;
  height: 48px;
  font-size: 26px;
}
.plb-prev { left: 16px; }
.plb-next { right: 16px; }

.plb-cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 22px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, .88);
  padding: 0 20px;
}

.plb-count {
  position: absolute;
  top: 26px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 12px;
  color: rgba(255, 255, 255, .6);
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 900px) {
  .photo-grid { column-count: 2; }
}
@media (max-width: 600px) {
  .photo-grid { column-count: 1; }
  .plb-nav { width: 36px; height: 42px; font-size: 22px; }
}