/* ===========================================================
   hall.css · 展厅内景（作品网格）
   =========================================================== */

.view-hall {
  padding: 96px 32px 80px;
  min-height: 100vh;
}

.hall-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: end;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto 40px;
  animation: fadeUp .9s var(--ease) both;
}
.hall-header > :first-child { justify-self: start; }
.hall-header > :last-child  { justify-self: end; display: flex; gap: 8px; }

.hall-title-wrap { text-align: center; }
.hall-eyebrow {
  font-family: var(--ff-num);
  letter-spacing: 0.32em;
  font-size: 0.72rem;
  color: var(--c-accent);
  margin: 0 0 6px;
  opacity: 0.8;
}
.hall-title {
  font-family: var(--ff-hand-cn);
  font-size: clamp(36px, 5vw, 56px);
  margin: 0;
  letter-spacing: 0.1em;
  color: var(--c-text);
}
.hall-blurb {
  font-family: var(--ff-body);
  color: var(--c-text-soft);
  margin: 10px auto 0;
  max-width: 620px;
  font-size: 1rem;
  line-height: 1.8;
}
.hall-blurb em {
  color: var(--c-accent);
  font-style: normal;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.hall-blurb.is-set {
  text-align: center;
}
.hall-set-tag {
  display: inline-block;
  margin: 0 0 6px;
  padding: 2px 10px;
  background: var(--c-accent);
  color: #fff;
  border-radius: 999px;
  font-family: var(--ff-hand-cn);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
}
.hall-set-blurb {
  display: inline-block;
  margin-top: 4px;
  color: var(--c-text-soft);
  font-size: 0.95rem;
}

/* 网格 */
.hall-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px 24px;
}

.art-tile {
  --aspect: 1/1;
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: var(--aspect);
  background: var(--bg-card);
  border-radius: var(--r-md);
  overflow: hidden;
  cursor: pointer;
  box-shadow: 0 12px 24px -16px rgba(165, 106, 60, 0.25);
  border: 6px solid #FFFDF7;
  outline: 1.5px dashed rgba(165, 106, 60, 0.18);
  outline-offset: -8px;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
  animation: fadeUp .8s var(--ease) both;
}
.art-tile.span-2 { grid-column: span 2; }

.art-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease);
}
.art-tile:hover {
  transform: translateY(-6px) rotate(-0.6deg);
  box-shadow: 0 24px 50px -20px rgba(165, 106, 60, 0.4);
}
.art-tile:hover img {
  transform: scale(1.04);
}
.art-tile:focus-visible {
  outline: 2px dashed var(--c-accent);
  outline-offset: 4px;
}

.art-tile-label {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: flex;
  flex-direction: column;
  padding: 8px 14px;
  background: rgba(255, 252, 240, 0.92);
  border-radius: 999px;
  font-family: var(--ff-hand-cn);
  color: var(--c-text);
  opacity: 0;
  transform: translateY(8px);
  transition: all .45s var(--ease);
  pointer-events: none;
  backdrop-filter: blur(6px);
  border: 1px solid var(--c-line);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}
.art-tile-label small {
  font-family: var(--ff-num);
  font-size: 0.65rem;
  color: var(--c-accent);
  letter-spacing: 0.1em;
}
.art-tile:hover .art-tile-label,
.art-tile:focus-visible .art-tile-label {
  opacity: 1;
  transform: translateY(0);
}

/* 编号小印章 */
.art-tile-num {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  background: rgba(255, 252, 240, 0.85);
  border: 1.5px solid var(--c-accent);
  color: var(--c-accent);
  border-radius: 50%;
  font-family: var(--ff-num);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  font-weight: 500;
  backdrop-filter: blur(4px);
}

/* 空状态 */
.hall-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--c-text-soft);
  font-family: var(--ff-body);
}
.hall-empty svg { margin: 0 auto 16px; display: block; }

/* 响应式 */
@media (max-width: 900px) {
  .hall-grid { grid-template-columns: repeat(2, 1fr); }
  .art-tile.span-2 { grid-column: span 2; }
  .hall-header { grid-template-columns: 1fr; }
  .hall-header > :first-child,
  .hall-header > :last-child { justify-self: stretch; }
  .hall-title-wrap { text-align: left; }
}
@media (max-width: 540px) {
  .view-hall { padding: 80px 18px 60px; }
  .hall-grid { grid-template-columns: 1fr; gap: 18px; }
  .art-tile.span-2 { grid-column: auto; }
}