:root {
  --primary: #3b82f6;       /* 蓝（主色） */
  --primary-light: #dbeafe;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --bg-card: #ffffff;
  --border-light: #e5e7eb;
}

.btn-primary {
  background-color: var(--primary);
  border-color: var(--primary);
}

.bg-gradient-dark {
  background: linear-gradient(135deg, #2c3e50, #1a1a2e);
}
.navbar-brand {
  font-weight: 600;
  color: #fff !important;
}
.navbar-brand:hover {
  opacity: 0.9;
}

/* 替换原 style 中的 #aiChat... */
#aiChatOutput, #aiChatInput {
  font-size: 0.9375rem; /* 15px，更易读 */
}

/* 卡片标题缩小并加粗 */
.card .card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: #2d3748;
  line-height: 1.3;
}

/* 描述文字优化行高与颜色 */
.card-text {
  font-size: 0.875rem;
  line-height: 1.5 !important; /* 覆盖 inline style */
  color: #718096 !important;
  display: -webkit-box !important;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}


.favorite-icon {
  cursor: pointer;
  color: #cbd5e0; /* 默认灰色 */
  transition: color 0.2s;
  font-size: 1.1rem;
}

.favorite-icon.favorited {
  color: #e53e3e; /* 红色表示已收藏 */
}

.favorite-icon.processing {
  opacity: 0.6;
  pointer-events: none;
}

.bg-gradient-dark {
    background: linear-gradient(135deg, #2c3e50, #1a1a2e);
}
.navbar-brand {
  font-weight: 600;
  color: #fff !important;
}

#aiChatOutput, #aiChatInput {
  font-size: 0.9375rem;
}

.card .card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: #2d3748;
  line-height: 1.3;
}

.card-text {
  font-size: 0.875rem !important;
  line-height: 1.5 !important;
  color: #718096 !important;
  display: -webkit-box !important;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-header {
  border-bottom: 1px solid rgba(0,0,0,0.08);
  padding: 0.75rem 1rem;
}

.loading {
  display: none;
}

/* 全局 AI 标签样式 */
.ai-generated-badge {
  font-size: 0.75em;
  padding: 0.3em 0.6em;
  border-radius: 12px;
  background-color: #e1f0ff;     /* 浅蓝背景保持不变 */
  color: #6c757d;                /* 修改为较为低调的灰色文字 */
  font-weight: 600;
  vertical-align: middle;
  margin-left: 0.5rem;
  line-height: 1;
  display: inline-block;
}