/* ============================================================
   首页资源分类卡片 + 搜索结果分类标签
   设计语言：极简黑白灰；红色仅用于 hover 强调与选中态
   深浅模式自动适配（全部使用 var() 主题变量）
   ============================================================ */

/* ---- 资源分类分区 ---- */
.resource-section {
  padding: 56px 0 48px;
}
.resource-section-title {
  font-size: 28px;
  font-weight: 700;
  text-align: center;
  margin: 0 0 8px;
  color: var(--color-text);
  letter-spacing: 0.01em;
}
.resource-section-subtitle {
  font-size: 15px;
  text-align: center;
  color: var(--color-text-muted);
  margin: 0 0 36px;
}

/* 网格：电脑端 3 列（6 卡 2 行），平板 2 列，手机 2 列 */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) {
  .resource-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .resource-grid { grid-template-columns: 1fr; gap: 14px; }
}

/* 卡片：极简黑白灰 */
.resource-card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border-radius: 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.24s ease-out, box-shadow 0.24s ease-out, transform 0.24s ease-out;
  min-height: 180px;
}
.resource-card:hover {
  border-color: rgba(239, 68, 68, 0.55);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}
.resource-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--color-surface-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: var(--color-text-secondary);
  transition: color 0.24s ease-out, background 0.24s ease-out;
}
.resource-card:hover .resource-card-icon {
  color: var(--color-primary);
  background: rgba(239, 68, 68, 0.10);
}
.resource-card-icon svg { width: 22px; height: 22px; display: block; }
.resource-card-title {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--color-text);
}
.resource-card-desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0 0 14px;
  flex: 1;
}
.resource-card-action {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color 0.24s ease-out;
}
.resource-card:hover .resource-card-action {
  color: var(--color-primary);
}

/* ---- 搜索结果分类标签栏 ---- */
.search-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px 12px 10px;
  border-bottom: 1px solid var(--color-border);
}
.search-filter-chip {
  padding: 4px 12px;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  cursor: pointer;
  transition: color 0.24s ease-out, background 0.24s ease-out, border-color 0.24s ease-out;
}
.search-filter-chip:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}
.search-filter-chip.active {
  color: var(--color-primary);
  background: rgba(239, 68, 68, 0.10);
  border-color: rgba(239, 68, 68, 0.55);
}

/* ===== 手机端资源分类卡片 2 列优化（2026-09-28）=====
   仅作用于 max-width:768px：一行 2 张卡片，缩小内边距与字号适配小屏；
   桌面/平板现有规则（3 列/2 列通栏卡片）完全不受影响。
   配色、圆角、阴影、hover 风格均保持不变，仅调整布局与字号。 */
@media (max-width: 768px) {
  .resource-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .resource-card {
    padding: 14px;
    min-height: 148px;
  }
  .resource-card-icon {
    width: 34px;
    height: 34px;
    margin-bottom: 10px;
  }
  .resource-card-icon svg { width: 19px; height: 19px; }
  .resource-card-title { font-size: 15px; margin-bottom: 6px; }
  .resource-card-desc { font-size: 12px; line-height: 1.5; margin-bottom: 10px; }
  .resource-card-action { font-size: 12px; }
}
@media (max-width: 360px) {
  .resource-card { padding: 12px; }
  .resource-card-desc { font-size: 11px; }
}