/* ===== 分类页面专用样式 ===== */

/* 页面头部 */
.cat-hero {
    position: relative;
    padding: 60px 0 40px;
    text-align: center;
    overflow: hidden;
    background:
        radial-gradient(ellipse 80% 60% at 20% 40%, rgba(79,70,229,0.08) 0%, transparent 70%),
        radial-gradient(ellipse 60% 80% at 80% 30%, rgba(99,102,241,0.06) 0%, transparent 70%),
        linear-gradient(180deg, var(--primary-50) 0%, var(--bg-primary) 100%);
}
.cat-hero-title {
    font-size: 40px;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}
.cat-hero-desc {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 28px;
}
.cat-hero-desc strong {
    color: var(--primary);
    font-size: 22px;
}
.cat-hero-search {
    max-width: 560px;
    margin: 0 auto;
}
.cat-hero-search .search-box {
    border-radius: 14px;
}
.cat-hero-search .search-input {
    padding: 14px 20px;
    font-size: 15px;
}

/* 筛选栏 */
.cat-filter {
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
    background: white;
    position: sticky;
    top: 72px;
    z-index: 100;
}
.filter-bar {
    display: flex;
    align-items: center;
    gap: 16px;
}
.filter-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}
.filter-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.filter-tag {
    padding: 7px 18px;
    border-radius: 100px;
    border: 1.5px solid var(--border);
    background: white;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    white-space: nowrap;
}
.filter-tag:hover {
    border-color: var(--primary-200);
    color: var(--primary);
}
.filter-tag.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}
.filter-stats {
    margin-left: auto;
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
}
.filter-stats strong {
    color: var(--primary);
    font-size: 16px;
}

/* 分类区段 */
.cat-section {
    padding: 40px 0 60px;
}
.cat-section-alt {
    background: var(--bg-secondary);
}

/* 分组标题 */
.cat-group-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
}
.cat-group-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: var(--primary-50);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.cat-group-icon.services-icon {
    background: #fffbeb;
}
.cat-group-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0;
}
.cat-group-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin: 4px 0 0;
}

/* 分类网格 */
.cat-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 18px;
}

/* 分类卡片 */
.cat-card {
    background: white;
    border-radius: 14px;
    padding: 22px 18px 18px;
    cursor: pointer;
    border: 1.5px solid var(--border-light);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}
.cat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -4px rgba(0,0,0,0.1);
    border-color: var(--primary-200);
}
.cat-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    opacity: 0;
    transition: opacity 0.3s;
}
.cat-card:hover::after {
    opacity: 1;
}

.cat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}
.cat-card-num {
    font-size: 28px;
    font-weight: 900;
    color: var(--primary-100);
    line-height: 1;
}
.cat-card-badge {
    padding: 2px 8px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
}
.badge-hot {
    background: #fef2f2;
    color: #dc2626;
}

.cat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}
.cat-card-emoji {
    font-size: 22px;
    filter: brightness(1.1);
}

.cat-card-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.cat-card-keywords {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 12px;
    min-height: 38px;
}
.cat-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 10px;
    border-top: 1px solid var(--border-light);
}
.cat-card-count {
    font-size: 12px;
    color: var(--primary);
    font-weight: 600;
}
.cat-card-arrow {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background: var(--primary-50);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    transition: var(--transition);
}
.cat-card:hover .cat-card-arrow {
    background: var(--primary);
    color: white;
}

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
    .cat-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 900px) {
    .cat-grid { grid-template-columns: repeat(3, 1fr); }
    .cat-hero-title { font-size: 32px; }
    .filter-bar { flex-wrap: wrap; }
    .filter-stats { margin-left: 0; }
}
@media (max-width: 640px) {
    .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .cat-card { padding: 16px 14px 14px; }
    .cat-card-num { font-size: 22px; }
    .cat-card-icon { width: 40px; height: 40px; border-radius: 10px; }
    .cat-card-emoji { font-size: 18px; }
    .cat-hero { padding: 40px 0 24px; }
    .cat-hero-title { font-size: 26px; }
    .cat-section { padding: 24px 0 40px; }
}
@media (max-width: 400px) {
    .cat-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
}