/* =============================================================================== */
/* 资料列表页个性化样式 */
/* =============================================================================== */

/* ============= 页面容器 ============= */
.resource-container {
  max-width: var(--breakpoint-1k);
  margin: 0 auto;
}

.resource-result {
  margin-bottom: var(--space-6);
}

.resource-card-wrapper {
  width: 100%;
}

/* ============= 筛选和搜索区域 ============= */
.filter-section {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  gap: var(--space-3);
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-6);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--neutral-200);
}

/* ============= 筛选按钮容器 ============= */
.filter-buttons-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  flex: 1;
}

/* ============= 搜索区域 ============= */
.search-section {
  display: flex;
  align-items: center;
  min-width: var(--space-70);
}

.search-form {
  width: 100%;
}

/* ============= 资源卡片链接样式 ============= */

.stagger-container {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: var(--space-6);
}

@media (max-width: 1024px) {
  .resource-card {
      display: flex;
      flex-direction: column;
      align-items: center;
  }
  .stagger-container {
      grid-template-columns: repeat(2,1fr);
  }
}

@media (max-width: 768px) {
  .stagger-container {
      grid-template-columns: repeat(1,1fr);
  }
}

.resource-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  height: 100%;
  transition: transform var(--transition-base);
  will-change: transform;
}

.resource-card-link:hover {
  text-decoration: none;
  color: inherit;
  transform: translateY(-2px);
}

.resource-card-link:focus {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
  border-radius: var(--radius-lg);
}

.resource-card {
  background: var(--bg-color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base),border-color var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
  will-change: box-shadow, border-color;
}

.resource-card-link:hover .resource-card {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-300);
}

/* ============= 资源标签 ============= */
.resource-badge-container {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.resource-badge {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-lg);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-premium {
  background: var(--warning-100);
  color: var(--warning-700);
}

.badge-free {
  background: var(--success-100);
  color: var(--success-700);
}

/* ============= 资源图标 ============= */
.resource-icon-container {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  background: var(--bg-color-secondary);
  margin-bottom: var(--space-4);
  transition: background-color var(--transition-base);
}

.resource-icon-container img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.resource-icon {
  font-size: var(--text-xl);
  color: var(--text-color-tertiary);
  transition: color var(--transition-base);
}

.resource-card-link:hover .resource-card .resource-icon {
  color: var(--primary-600);
}

/* ============= 文件类型图标颜色 ============= */
.pdf-icon {
  color: var(--error-600);
}

.video-icon {
  color: var(--info-600);
}

.audio-icon {
  color: var(--success-600);
}

.image-icon {
  color: var(--warning-600);
}

.archive-icon {
  color: var(--primary-600);
}

.document-icon {
  color: var(--black-alpha-20);
}

/* ============= 资源内容 ============= */
.resource-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.resource-title {
  text-align: center;
  color: var(--text-color-primary);
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-snug);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============= 资源元信息 ============= */
.resource-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
}

.meta-item i {
  font-size: var(--text-xs);
  opacity: 0.7;
}

/* ============= 资源描述 ============= */
.resource-description {
  color: var(--text-color-secondary);
  font-size: var(--text-sm);
  line-height: var(--line-height-normal);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: var(--space-15);
}

.resource-type {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-color-tertiary);
  font-size: var(--text-sm);
}

.resource-type i {
  font-size: var(--text-xs);
}


/* ============= 响应式设计 ============= */
@media (max-width: 1024px) {
  .resource-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}

@media (max-width: 767px) {
  .resource-card {
    padding: var(--space-4);
  }

  .resource-icon {
    font-size: var(--text-lg);
  }

  .filter-section {
    flex-direction: column;
    gap: var(--space-4);
  }

  .search-section {
    min-width: 100%;
  }
}

@media (max-width: 479px) {
  .resource-card {
    padding: var(--space-5);
  }

  .resource-icon {
    font-size: var(--text-base);
  }

  .resource-badge-container {
    gap: var(--space-1);
  }

  .resource-meta {
    gap: var(--space-1);
  }

  .filter-buttons-container {
    gap: var(--space-1);
  }
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.clear-search-btn {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  color: #888;
  font-size: var(--space-5);
  font-weight: bold;
  display: none; /* Initially hidden */
}

.clear-search-btn:hover {
  color: #333;
}