/* ============================================================
   图片浮窗(灯箱)
   - 半透明遮罩 + 居中大图
   - 右上角叉号关闭
   - 点背景关闭 / ESC 关闭
   - ⭐ 不做入场动画(城主要求)
   - ⭐ 右键可以"图片另存为"(所以不能拦 contextmenu)
   ============================================================ */

.lightbox {
  position: fixed;
  inset: 0;
  /* ⭐ 必须 > 导航的 z-index(1000),否则整层浮窗会被导航压住,
     右上角的叉号也会被导航挡住 */
  z-index: 2000;
  display: none;
  place-items: center;
  padding: 40px 24px;
  /* 半透明 —— 能明显看到底下的图集网格 */
  background: rgba(6, 5, 8, .68);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  cursor: zoom-out;
}
.lightbox.open { display: grid; }

.lightbox-inner {
  position: relative;
  max-width: 100%;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  pointer-events: none;
}

/* 大图 —— ⭐ 纯 <img>,右键能"图片另存为" */
.lightbox-img {
  max-width: min(1200px, 92vw);
  max-height: calc(100vh - 200px);
  object-fit: contain;
  display: block;
  pointer-events: auto;
  cursor: default;
  border: 1px solid rgba(212, 162, 74, .16);
  box-shadow: 0 30px 90px rgba(0, 0, 0, .75);
  background: #0d0b0e;
}

/* 标题 + 说明 */
.lightbox-cap {
  pointer-events: auto;
  text-align: center;
  max-width: 90vw;
}
.lightbox-cap h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .08em;
  color: #f0e9e2;
}
.lightbox-cap p {
  margin: 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-text-mute);
}

/* 关闭按钮 —— ⭐ z-index 要高于浮窗内部所有元素 */
.lightbox-close {
  position: fixed;
  top: 22px;
  right: 24px;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border: 2px solid rgba(212, 162, 74, .6);
  border-radius: 50%;
  background: rgba(20, 15, 19, .95);
  color: var(--c-gold);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  z-index: 2001;
  transition: border-color .2s, color .2s, background .2s, transform .2s;
}
.lightbox-close:hover {
  border-color: var(--c-gold);
  color: #ffe0a0;
  background: rgba(40, 26, 34, .98);
  transform: rotate(90deg);
}
.lightbox-close:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 3px;
}

/* 提示条 —— ⭐ 提亮,原来太暗看不清 */
.lightbox-hint {
  position: fixed;
  left: 24px;
  bottom: 20px;
  z-index: 2001;
  font-size: 12px;
  letter-spacing: .14em;
  color: rgba(255, 255, 255, .62);
  pointer-events: none;
}

@media (max-width: 760px) {
  .lightbox { padding: 56px 14px 20px; }
  .lightbox-img { max-height: calc(100vh - 170px); }
  .lightbox-close { top: 12px; right: 14px; width: 40px; height: 40px; font-size: 21px; }
  .lightbox-hint { display: none; }
}