/* ============================================
   西兰卡普 - 线上展览页面样式
   ============================================ */

/* 展览英雄区 */
.exhibition-hero {
  background: linear-gradient(135deg, var(--primary-navy), #0d1a2d);
  padding: var(--spacing-2xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.exhibition-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.exhibition-hero-content {
  position: relative;
  z-index: 1;
}

.exhibition-hero h1 {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: white;
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.1em;
}

.exhibition-hero p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin: 0 auto;
}

/* 展览分类 */
.exhibition-categories {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.exhibition-category {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px 28px;
  background: var(--bg-light);
  border: 2px solid #e5e5e5;
  color: var(--text-light);
  font-size: 1rem;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.exhibition-category:hover,
.exhibition-category.active {
  background: var(--primary-navy);
  border-color: var(--primary-navy);
  color: white;
}

/* 展览画廊 */
.exhibition-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.exhibition-item {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 1/1;
  cursor: pointer;
  transition: var(--transition);
  border: 4px solid var(--accent-gold);
  padding: 3px;
  background: var(--primary-navy);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.exhibition-item:hover {
  transform: scale(1.03);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25), 0 0 20px rgba(212, 175, 55, 0.25);
}

/* 图片占位符 */
.exhibition-item .image-placeholder {
  width: 100%;
  height: 100%;
}

.exhibition-item .image-placeholder::before {
  font-size: 3rem;
}

.exhibition-item .image-placeholder::after {
  font-size: 0.75rem;
}

.exhibition-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 1px;
}

.exhibition-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-lg);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
  color: white;
  transform: translateY(20px);
  opacity: 0;
  transition: var(--transition);
}

.exhibition-item:hover .exhibition-overlay {
  transform: translateY(0);
  opacity: 1;
}

.exhibition-overlay h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  margin-bottom: 4px;
  letter-spacing: 0.03em;
}

.exhibition-overlay p {
  font-size: 0.8rem;
  opacity: 0.8;
}

/* 精选藏品 */
.featured-collection {
  margin-bottom: var(--spacing-2xl);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.featured-item {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  height: 350px;
}

/* 图片占位符 */
.featured-item .image-placeholder {
  width: 100%;
  height: 100%;
}

.featured-item .image-placeholder::before {
  font-size: 3.5rem;
}

.featured-item .image-placeholder::after {
  font-size: 0.8rem;
}

.featured-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.featured-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-xl);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
  color: white;
}

.featured-info .tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--accent-red);
  font-size: 0.75rem;
  border-radius: 20px;
  margin-bottom: var(--spacing-sm);
}

.featured-info h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.featured-info p {
  font-size: 0.9rem;
  opacity: 0.9;
  line-height: 1.6;
}

/* 虚拟展厅入口 */
.virtual-hall {
  background: linear-gradient(135deg, #1e3a5f, #0d1a2d);
  border-radius: 20px;
  padding: var(--spacing-2xl);
  display: flex;
  gap: var(--spacing-2xl);
  align-items: center;
  margin-bottom: var(--spacing-2xl);
  position: relative;
  overflow: hidden;
}

.virtual-hall::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.virtual-hall-image {
  width: 400px;
  height: 280px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

/* 图片占位符 */
.virtual-hall-image .image-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 12px;
}

.virtual-hall-image .image-placeholder::before {
  font-size: 4rem;
}

.virtual-hall-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.virtual-hall-content {
  flex: 1;
  position: relative;
  z-index: 1;
}

.virtual-hall-content h2 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: white;
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.05em;
}

.virtual-hall-content p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
}

.virtual-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px 28px;
  background: var(--accent-red);
  color: white;
  font-size: 1rem;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: var(--font-sans);
}

.virtual-btn:hover {
  background: #a01830;
  transform: translateY(-3px);
}

.virtual-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* 展览信息 */
.exhibition-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  background: var(--bg-light);
  padding: var(--spacing-xl);
  border-radius: 12px;
}

.info-card {
  text-align: center;
  padding: var(--spacing-lg);
}

.info-card .icon {
  width: 60px;
  height: 60px;
  background: var(--primary-navy);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto var(--spacing-md);
}

.info-card h3 {
  font-size: 1rem;
  color: var(--primary-navy);
  margin-bottom: 4px;
}

.info-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* 响应式 */
@media (max-width: 992px) {
  .exhibition-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .featured-grid {
    grid-template-columns: 1fr;
  }
  
  .featured-item {
    height: 280px;
  }
  
  .virtual-hall {
    flex-direction: column;
  }
  
  .virtual-hall-image {
    width: 100%;
    height: 200px;
  }
  
  .exhibition-info {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .exhibition-gallery {
    grid-template-columns: 1fr;
  }
}