/* ══════════════════════════════════════════════════
   四时织锦·舟游四海 — gallery.css  ·  升级版
   ══════════════════════════════════════════════════ */

.gallery {
  background: linear-gradient(180deg, var(--white) 0%, var(--paper) 100%);
  position: relative;
  overflow: hidden;
}
.gallery::before {
  content: '摄';
  position: absolute;
  top: -0.1em; right: -0.05em;
  font-family: 'Ma Shan Zheng', serif;
  font-size: clamp(200px, 24vw, 360px);
  color: rgba(45,90,39,.03);
  pointer-events: none;
  line-height: 1;
}

.gallery-masonry {
  columns: 4;
  column-gap: 14px;
  padding: 0 40px;
  max-width: var(--max-w);
  margin: 0 auto;
}

/* ─── 相册单格 ─── */
.gallery-item {
  break-inside: avoid;
  margin-bottom: 14px;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  box-shadow: 0 2px 10px rgba(0,0,0,.09);
  transition: transform var(--transition), box-shadow var(--transition);
}
.gallery-item:hover {
  transform: translateY(-4px) scale(1.012);
  box-shadow: 0 12px 36px rgba(0,0,0,.18);
  z-index: 1;
}
.gallery-item img {
  width: 100%;
  display: block;
  transition: transform .55s ease;
}
.gallery-item:hover img { transform: scale(1.06); }

/* hover 蒙层：文字信息叠加 */
.gallery-item::after {
  content: attr(data-label);
  position: absolute; inset: 0;
  background: linear-gradient(to top,
    rgba(15,42,15,.82) 0%,
    rgba(15,42,15,.3) 50%,
    transparent 100%);
  display: flex;
  align-items: flex-end;
  padding: 14px 12px;
  font-size: .78rem;
  font-weight: 600;
  color: rgba(255,255,255,.9);
  letter-spacing: .04em;
  opacity: 0;
  transition: opacity var(--transition);
}
.gallery-item:hover::after { opacity: 1; }

/* 右上角放大图标 */
.gallery-item::before {
  content: '';
  position: absolute;
  top: 10px; right: 10px;
  z-index: 2;
  width: 30px; height: 30px;
  background: rgba(255,255,255,.92) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%232D5A27' stroke-width='2.5'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='M21 21l-4.35-4.35'/%3E%3C/svg%3E") center/16px no-repeat;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0,0,0,.2);
  opacity: 0;
  transform: scale(.7);
  transition: opacity var(--transition), transform var(--transition);
}
.gallery-item:hover::before {
  opacity: 1;
  transform: scale(1);
}

/* 加载更多 */
.gallery-actions { text-align: center; margin-top: 48px; }
.btn-more {
  background: var(--white);
  border: 2px solid var(--green-mid);
  color: var(--green-mid);
  font-size: .95rem;
  font-weight: 600;
  padding: 14px 48px;
  border-radius: var(--radius-xl);
  transition: var(--transition);
  letter-spacing: .08em;
  box-shadow: 0 2px 12px rgba(45,90,39,.1);
}
.btn-more:hover {
  background: var(--green-mid);
  color: var(--white);
  box-shadow: 0 8px 28px rgba(45,90,39,.35);
  transform: translateY(-2px);
}

/* ════════════════════════════════
   灯箱 — 升级版
   ════════════════════════════════ */
.lightbox {
  display: none;
  position: fixed; inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,.95);
  align-items: center;
  justify-content: center;
  animation: lbIn .28s ease;
}
.lightbox.open { display: flex; }
@keyframes lbIn { from { opacity:0; } to { opacity:1; } }

.lb-img {
  max-width: 88vw;
  max-height: 84vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 0 0 1px rgba(255,255,255,.06), 0 40px 100px rgba(0,0,0,.7);
  animation: lbImgIn .3s ease;
}
@keyframes lbImgIn {
  from { opacity:0; transform: scale(.96); }
  to   { opacity:1; transform: scale(1); }
}

/* 顶部渐变条 */
.lightbox::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(to bottom, rgba(0,0,0,.6), transparent);
  pointer-events: none;
  z-index: 1;
}
/* 底部渐变条 */
.lightbox::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(to top, rgba(0,0,0,.6), transparent);
  pointer-events: none;
  z-index: 1;
}

.lb-close, .lb-prev, .lb-next {
  position: absolute;
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(8px);
  transition: background var(--transition), transform var(--transition);
  z-index: 10;
}
.lb-close:hover, .lb-prev:hover, .lb-next:hover {
  background: rgba(255,255,255,.22);
  transform: scale(1.08);
}
.lb-close {
  top: 20px; right: 20px;
  width: 44px; height: 44px;
  font-size: 1.1rem;
  border-radius: 50%;
}
.lb-close:hover { transform: rotate(90deg) scale(1.08); }
.lb-prev {
  left: 20px; top: 50%;
  transform: translateY(-50%);
  width: 52px; height: 52px;
  font-size: 2rem;
  border-radius: 50%;
}
.lb-next {
  right: 20px; top: 50%;
  transform: translateY(-50%);
  width: 52px; height: 52px;
  font-size: 2rem;
  border-radius: 50%;
}
.lb-prev:hover  { transform: translateY(-50%) scale(1.1); }
.lb-next:hover  { transform: translateY(-50%) scale(1.1); }
.lb-counter {
  position: absolute;
  bottom: 24px; left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,.55);
  font-size: .82rem;
  letter-spacing: .1em;
  background: rgba(0,0,0,.3);
  padding: 4px 14px;
  border-radius: var(--radius-xl);
  backdrop-filter: blur(4px);
  z-index: 10;
}