/* ========== 面包屑导航 ========== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    font-size: 0.875rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.breadcrumb a:hover {
    color: var(--accent);
}

.breadcrumb .separator {
    font-size: 1rem;
    color: var(--text-muted);
}

.breadcrumb .current {
    color: var(--accent);
    font-weight: 600;
}

/* ========== 分类英雄区 ========== */
.category-hero {
    background: linear-gradient(135deg, var(--accent-light), var(--bg-secondary));
    border-radius: var(--radius);
    padding: 48px 32px;
    margin-bottom: 32px;
    text-align: center;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.category-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: var(--accent);
    opacity: 0.05;
    border-radius: 50%;
    pointer-events: none;
}

.category-hero-inner {
    position: relative;
    z-index: 1;
}

.category-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.category-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto 16px;
    line-height: 1.6;
}

.category-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    color: var(--text-muted);
    background: var(--bg-card);
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid var(--border);
}

/* ========== 子分类导航 ========== */
.sub-categories {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom:  32px;
    flex-wrap: wrap;
}

.sub-cat-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.sub-cat-list {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.sub-cat-item {
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.sub-cat-item:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    transform: translateY(-2px);
}
.sub-cat-item.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    transform: translateY(-2px);
}

.sub-cat-count {
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 600;
}

.sub-cat-item:hover .sub-cat-count {
    background: rgba(255,255,255,0.2);
    color: white;
}
.sub-cat-item.active .sub-cat-count {
    background: rgba(255,255,255,0.2);
    color: white;
}

/* ========== 无封面图占位 ========== */
.post-card-thumb.no-cover {
    padding-top: 56.25%;
    background: linear-gradient(135deg, var(--accent-light), var(--bg-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.post-card-thumb.no-cover i {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    color: var(--accent);
    opacity: 0.3;
}

/* 移动端适配 */
@media (max-width: 640px) {
    .category-hero {
        padding: 32px 20px;
    }
    
    .category-title {
        font-size: 1.5rem;
    }
    
    .sub-categories {
        gap: 12px;
    }
}