/* ============================================
   业务板块页（活动/文章/资源/项目）通用样式
   含"建设中"提示 + 板块预览卡片
   ============================================ */

/* 建设中横幅：浅色卡片 + 细边框 + 顶部品牌色细线，与全站统一 */
.uc-banner {
    position: relative;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5) var(--space-4);
    text-align: center;
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.uc-banner::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
}
.uc-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    display: grid;
    place-items: center;
    background: rgba(30, 58, 95, 0.10);
    border: 1px solid rgba(30, 58, 95, 0.12);
    border-radius: 14px;
    color: var(--color-primary);
}
.uc-icon svg { width: 28px; height: 28px; }
.uc-badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 999px;
    background: rgba(30, 58, 95, 0.10);
    border: 1px solid rgba(30, 58, 95, 0.16);
    color: var(--color-primary);
    font-size: 12px;
    letter-spacing: 1px;
    margin-bottom: 14px;
}
.uc-banner h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: 12px;
}
.uc-banner p {
    max-width: 560px;
    margin: 0 auto 24px;
    color: var(--color-muted-foreground);
    line-height: 1.7;
}
.uc-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 预览卡片 */
.preview-card {
    padding: 0;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.preview-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.preview-cover {
    height: 140px;
    display: grid;
    place-items: center;
    background: rgba(30, 58, 95, 0.08);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 1px;
}
.preview-body {
    padding: var(--space-3) var(--space-3) var(--space-4);
    text-align: left;
}
.preview-tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.12);
    color: var(--color-secondary);
    font-size: 12px;
    margin-bottom: 10px;
}
.preview-body h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    margin-bottom: 8px;
    color: var(--color-primary);
}
.preview-body p {
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.65;
    margin-bottom: 12px;
}
.preview-meta {
    font-size: 0.82rem;
    color: var(--color-muted);
    border-top: 1px solid var(--color-border);
    padding-top: 10px;
}

/* 资源库预览：类型标签 + 列表 */
.resource-preview-list {
    display: grid;
    gap: 12px;
}
.resource-preview-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color 0.2s;
}
.resource-preview-row:hover {
    border-color: var(--color-secondary);
}
.resource-type-tag {
    flex-shrink: 0;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
}
.resource-type-tag.prompt { background: #2563eb; }
.resource-type-tag.workflow { background: #7c3aed; }
.resource-type-tag.competition { background: #dc2626; }
.resource-type-tag.case { background: #0f766e; }
.resource-type-tag.tutorial { background: #a16207; }

/* 项目预览 */
.project-status {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}
.project-status.active { background: rgba(16, 185, 129, 0.15); color: #059669; }
.project-status.planning { background: rgba(245, 158, 11, 0.15); color: #d97706; }
.project-status.maintained { background: rgba(37, 99, 235, 0.15); color: #2563eb; }