/* ==========================================================================
   编程学习之家 (pgsr.cn) - 内页专属样式
   每个页面模块独立原创设计，无重复布局
   ========================================================================== */

/* ==========================================================================
   通用内页 Hero — 弧形底边 + 虚化装饰
   ========================================================================== */
.page-hero {
  position: relative;
  padding: calc(var(--nav-h) + 60px) 0 64px;
  background: linear-gradient(180deg, var(--blue-mist), var(--cream));
  overflow: hidden;
}
.page-hero.green-bg { background: linear-gradient(180deg, var(--green-mist), var(--cream)); }
.page-hero::before {
  content: "";
  position: absolute;
  width: 400px; height: 400px;
  background: var(--blue-light);
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  top: -150px; right: -100px;
  pointer-events: none;
}
.page-hero::after {
  content: "";
  position: absolute;
  width: 300px; height: 300px;
  background: var(--green-light);
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.25;
  bottom: -120px; left: -50px;
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero .eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue-deep);
  margin-bottom: 12px;
}
.page-hero.green-bg .eyebrow { color: var(--green-ink); }
.page-hero h1 { font-size: 38px; margin-bottom: 12px; }
.page-hero p { font-size: 16px; color: var(--body); max-width: 600px; }

/* ==========================================================================
   资讯列表页 — 左主右栏布局
   ========================================================================== */
.news-page-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
}
.news-page-main { display: flex; flex-direction: column; gap: 20px; }

/* 侧边栏 */
.news-side { display: flex; flex-direction: column; gap: 24px; position: sticky; top: 90px; }
.side-card {
  background: var(--cream-card);
  border-radius: var(--r-lg);
  padding: 24px;
  border: 1px solid var(--border);
}
.side-card h4 {
  font-size: 16px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--blue-mist);
  position: relative;
}
.side-card h4::after {
  content: "";
  position: absolute;
  bottom: -2px; left: 0;
  width: 40px; height: 2px;
  background: var(--blue-deep);
}

/* 迷你新闻条目 */
.news-mini { margin-bottom: 14px; }
.news-mini:last-child { margin-bottom: 0; }
.mini-item {
  display: flex;
  gap: 12px;
  padding: 10px;
  border-radius: var(--r-sm);
  transition: background 0.25s var(--ease);
}
.mini-item:hover { background: var(--blue-mist); }
.mini-item .m-thumb {
  flex-shrink: 0;
  width: 84px; height: 64px;
  border-radius: var(--r-sm);
  overflow: hidden;
}
.mini-item .m-thumb img { width: 100%; height: 100%; object-fit: cover; }
.mini-item .m-body h5 {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s var(--ease);
}
.mini-item:hover .m-body h5 { color: var(--blue-deep); }
.mini-item .m-date { font-size: 12px; color: var(--muted); }

/* 侧栏 CTA 卡片 */
.side-cta-card {
  background: linear-gradient(135deg, var(--blue-deep), var(--green-deep));
  border-radius: var(--r-lg);
  padding: 28px 24px;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.side-cta-card::before {
  content: "";
  position: absolute;
  width: 200px; height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  top: -80px; right: -60px;
  filter: blur(20px);
}
.side-cta-card h4 { color: var(--white); border: none; margin-bottom: 10px; }
.side-cta-card p { font-size: 13.5px; color: rgba(255, 255, 255, 0.85); margin-bottom: 18px; position: relative; z-index: 1; }

/* ==========================================================================
   文章详情页
   ========================================================================== */
.article-wrap {
  background: var(--cream-card);
  border-radius: var(--r-xl);
  padding: 44px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.article-head { margin-bottom: 28px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.article-head h1 { font-size: 30px; line-height: 1.4; margin-bottom: 16px; }
.article-meta { display: flex; gap: 20px; font-size: 13.5px; color: var(--muted); flex-wrap: wrap; }
.article-meta span { display: flex; align-items: center; gap: 6px; }
.article-content { font-size: 16px; line-height: 1.9; color: var(--body); }
.article-content img { border-radius: var(--r-lg); margin: 24px 0; box-shadow: var(--shadow); }
.article-content p { margin-bottom: 18px; }
.article-content h2 { font-size: 22px; margin: 32px 0 16px; color: var(--ink); }
.article-content h3 { font-size: 18px; margin: 24px 0 12px; color: var(--ink); }
.article-content ul, .article-content ol { margin: 16px 0 16px 24px; }
.article-content ul li { list-style: disc; margin-bottom: 8px; }
.article-content ol li { list-style: decimal; margin-bottom: 8px; }
.article-content pre {
  background: var(--ink);
  color: #A0B4C8;
  padding: 20px 24px;
  border-radius: var(--r);
  font-size: 14px;
  line-height: 1.7;
  overflow-x: auto;
  margin: 20px 0;
}
.article-content code {
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
}
.article-content blockquote {
  border-left: 4px solid var(--blue-deep);
  padding: 12px 20px;
  margin: 20px 0;
  background: var(--blue-mist);
  border-radius: 0 var(--r) var(--r) 0;
  color: var(--ink);
}
.article-foot {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.article-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.article-tags a {
  padding: 5px 14px;
  font-size: 13px;
  background: var(--blue-mist);
  color: var(--blue-deep);
  border-radius: 20px;
  transition: all 0.25s var(--ease);
}
.article-tags a:hover { background: var(--blue); color: var(--white); }

/* ==========================================================================
   服务/教程列表页 — 卡片网格
   ========================================================================== */
.svc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.svc-card {
  background: var(--cream-card);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.4s var(--ease-out);
}
.svc-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-mist);
}
.svc-card .svc-img { position: relative; overflow: hidden; }
.svc-card .svc-img img { width: 100%; height: 220px; object-fit: cover; transition: transform 0.5s var(--ease); }
.svc-card:hover .svc-img img { transform: scale(1.08); }
.svc-card .svc-img .svc-tag {
  position: absolute;
  top: 14px; left: 14px;
  padding: 5px 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--blue-deep);
}
.svc-card .svc-body { padding: 24px; }
.svc-card .svc-body h3 { font-size: 18px; margin-bottom: 10px; }
.svc-card .svc-body p { font-size: 14px; color: var(--body); margin-bottom: 16px; }
.svc-card .svc-feat { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.svc-card .svc-feat li {
  font-size: 12.5px;
  color: var(--muted);
  background: var(--cream-deep);
  padding: 3px 10px;
  border-radius: 12px;
}
.svc-card .svc-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--blue-deep);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.25s var(--ease);
}
.svc-card:hover .svc-link { gap: 12px; }

/* ==========================================================================
   教程详情页 — 左侧目录 + 右侧内容
   ========================================================================== */
.tutorial-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
}
.toc-side {
  position: sticky;
  top: 90px;
  align-self: start;
}
.toc-side h4 {
  font-size: 15px;
  margin-bottom: 16px;
  padding: 12px 16px;
  background: var(--blue-mist);
  border-radius: var(--r-sm);
  color: var(--blue-deep);
}
.toc-side .toc-list { display: flex; flex-direction: column; gap: 4px; }
.toc-side .toc-list a {
  display: block;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--body);
  border-radius: var(--r-sm);
  border-left: 3px solid transparent;
  transition: all 0.25s var(--ease);
}
.toc-side .toc-list a:hover,
.toc-side .toc-list a.active {
  color: var(--blue-deep);
  background: var(--blue-mist);
  border-left-color: var(--blue-deep);
}

/* ==========================================================================
   案例展示页 — 瀑布流网格
   ========================================================================== */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.case-card {
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--cream-card);
  border: 1px solid var(--border);
  transition: all 0.4s var(--ease);
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.case-card .case-img { position: relative; overflow: hidden; }
.case-card .case-img img { width: 100%; height: 240px; object-fit: cover; transition: transform 0.5s var(--ease); }
.case-card:hover .case-img img { transform: scale(1.06); }
.case-card .case-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(45, 63, 79, 0.7) 100%);
  display: flex;
  align-items: flex-end;
  padding: 16px;
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}
.case-card:hover .case-overlay { opacity: 1; }
.case-card .case-overlay span { color: var(--white); font-size: 13px; font-weight: 600; }
.case-card .case-body { padding: 20px; }
.case-card .case-body .case-cat { font-size: 12px; color: var(--green-ink); font-weight: 600; margin-bottom: 6px; }
.case-card .case-body h4 { font-size: 16px; margin-bottom: 8px; }
.case-card .case-body p { font-size: 13.5px; color: var(--body); }

/* 案例详情 */
.case-detail-head {
  background: var(--cream-card);
  border-radius: var(--r-xl);
  padding: 40px;
  border: 1px solid var(--border);
  margin-bottom: 32px;
}
.case-detail-head .case-cat { font-size: 13px; color: var(--green-ink); font-weight: 700; margin-bottom: 10px; }
.case-detail-head h1 { font-size: 30px; margin-bottom: 14px; }
.case-detail-head .case-info { display: flex; gap: 24px; font-size: 14px; color: var(--muted); }
.case-detail-head .case-info span { display: flex; align-items: center; gap: 6px; }

/* ==========================================================================
   关于我们 — 图文左右 + 价值观卡片
   ========================================================================== */
.about-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-hero .about-media {
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.about-hero .about-media img { width: 100%; height: 420px; object-fit: cover; }
.about-hero .about-media .about-badge {
  position: absolute;
  bottom: 20px; right: 20px;
  background: var(--white);
  padding: 16px 24px;
  border-radius: var(--r);
  box-shadow: var(--shadow);
  text-align: center;
}
.about-hero .about-badge strong { display: block; font-size: 28px; color: var(--blue-deep); }
.about-hero .about-badge span { font-size: 12px; color: var(--muted); }

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.value-card {
  text-align: center;
  padding: 28px 20px;
  background: var(--cream-card);
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  transition: all 0.35s var(--ease);
}
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--green-mist); }
.value-card .v-ico {
  width: 56px; height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--blue-mist), var(--green-mist));
}
.value-card h4 { font-size: 16px; margin-bottom: 8px; }
.value-card p { font-size: 13px; color: var(--body); }

/* 团队卡片 */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.member-card {
  background: var(--cream-card);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.35s var(--ease);
  text-align: center;
}
.member-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.member-card .m-avatar {
  width: 100%; height: 260px;
  background: linear-gradient(135deg, var(--blue-mist), var(--green-mist));
  display: flex; align-items: center; justify-content: center;
  font-size: 64px;
  font-weight: 800;
  color: var(--white);
}
.member-card .m-info { padding: 20px; }
.member-card .m-info h4 { font-size: 17px; margin-bottom: 4px; }
.member-card .m-info .m-role { font-size: 13px; color: var(--blue-deep); font-weight: 600; margin-bottom: 10px; }
.member-card .m-info p { font-size: 13px; color: var(--body); }

/* 荣誉资质 */
.honor-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.honor-card {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: var(--cream-card);
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  transition: all 0.3s var(--ease);
}
.honor-card:hover { box-shadow: var(--shadow); border-color: var(--blue-mist); }
.honor-card .h-ico {
  flex-shrink: 0;
  width: 48px; height: 48px;
  border-radius: var(--r-sm);
  background: var(--green-mist);
  display: flex; align-items: center; justify-content: center;
  color: var(--green-ink);
}
.honor-card .h-body h4 { font-size: 15px; margin-bottom: 4px; }
.honor-card .h-body p { font-size: 13px; color: var(--body); }

/* ==========================================================================
   联系页面 — 左信息右表单
   ========================================================================== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
}
.contact-info-card {
  background: linear-gradient(135deg, var(--blue-deep), var(--green-deep));
  border-radius: var(--r-xl);
  padding: 40px 36px;
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.contact-info-card::before {
  content: "";
  position: absolute;
  width: 250px; height: 250px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  top: -100px; right: -80px;
  filter: blur(30px);
}
.contact-info-card h3 { color: var(--white); font-size: 22px; margin-bottom: 8px; position: relative; z-index: 1; }
.contact-info-card > p { font-size: 14px; color: rgba(255, 255, 255, 0.8); margin-bottom: 28px; position: relative; z-index: 1; }
.contact-info-list { position: relative; z-index: 1; }
.contact-info-list li {
  display: flex;
  gap: 14px;
  margin-bottom: 22px;
}
.contact-info-list .ci-ico {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, 0.15);
  display: flex; align-items: center; justify-content: center;
}
.contact-info-list .ci-body h5 { color: var(--white); font-size: 14px; margin-bottom: 2px; }
.contact-info-list .ci-body p { font-size: 14px; color: rgba(255, 255, 255, 0.85); }

.contact-form-card {
  background: var(--cream-card);
  border-radius: var(--r-xl);
  padding: 40px 36px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   定价页
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: start;
}
.pricing-compare {
  width: 100%;
  border-collapse: collapse;
  background: var(--cream-card);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.pricing-compare th, .pricing-compare td {
  padding: 14px 20px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}
.pricing-compare th { background: var(--cream-deep); color: var(--ink); font-weight: 700; }
.pricing-compare td:not(:first-child) { text-align: center; }
.pricing-compare tr:last-child td { border-bottom: none; }

/* ==========================================================================
   网站地图
   ========================================================================== */
.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.sitemap-col h4 {
  font-size: 16px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--blue-mist);
}
.sitemap-col ul li { margin-bottom: 10px; }
.sitemap-col ul li a { font-size: 14px; color: var(--body); }
.sitemap-col ul li a:hover { color: var(--blue-deep); }

/* ==========================================================================
   文章/案例通用详情底部
   ========================================================================== */
.detail-nav {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 32px;
  padding: 24px;
  background: var(--cream-card);
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
}
.detail-nav a {
  font-size: 14px;
  color: var(--body);
  display: flex;
  align-items: center;
  gap: 8px;
}
.detail-nav a:hover { color: var(--blue-deep); }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1024px) {
  .news-page-grid { grid-template-columns: 1fr; }
  .news-side { position: static; flex-direction: row; flex-wrap: wrap; }
  .news-side > * { flex: 1; min-width: 260px; }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .tutorial-layout { grid-template-columns: 1fr; }
  .toc-side { position: static; }
  .about-hero { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .sitemap-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .page-hero h1 { font-size: 28px; }
  .article-wrap { padding: 24px; }
  .article-head h1 { font-size: 22px; }
  .svc-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .honor-grid { grid-template-columns: 1fr; }
  .sitemap-grid { grid-template-columns: 1fr; }
  .case-detail-head { padding: 24px; }
  .case-detail-head h1 { font-size: 22px; }
}

@media (max-width: 480px) {
  .news-side { flex-direction: column; }
  .article-wrap { padding: 18px; }
  .detail-nav { flex-direction: column; }
}

/* ==========================================================================
   编程知识库 — 六宫格分类（知识库总览页）
   ========================================================================== */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cat-card {
  display: block;
  background: var(--cream-card);
  border-radius: var(--r-lg);
  padding: 30px 28px;
  border: 1px solid var(--border);
  transition: all 0.35s var(--ease);
  position: relative;
  overflow: hidden;
}
.cat-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--blue-mist), transparent 60%);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  pointer-events: none;
}
.cat-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue);
}
.cat-card:hover::after { opacity: 0.45; }
.cat-card .cat-ico {
  width: 56px; height: 56px;
  border-radius: var(--r);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}
.cat-card:nth-child(1) .cat-ico { background: var(--blue-mist); color: var(--blue-deep); }
.cat-card:nth-child(2) .cat-ico { background: var(--green-mist); color: var(--green-ink); }
.cat-card:nth-child(3) .cat-ico { background: #FFF0E6; color: #E8915A; }
.cat-card:nth-child(4) .cat-ico { background: #F0E6FF; color: #8B5CB8; }
.cat-card:nth-child(5) .cat-ico { background: #FFE6F0; color: #C85A8B; }
.cat-card:nth-child(6) .cat-ico { background: #E6F0FF; color: #5A8BC8; }
.cat-card h4 { font-size: 18px; margin-bottom: 8px; position: relative; z-index: 1; }
.cat-card p { font-size: 14px; color: var(--body); margin-bottom: 16px; position: relative; z-index: 1; }
.cat-card .cat-link {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--blue-deep);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.25s var(--ease);
  position: relative;
  z-index: 1;
}
.cat-card:hover .cat-link { gap: 10px; }
.cat-card .cat-count {
  position: absolute;
  top: 22px; right: 24px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  background: var(--cream-deep);
  padding: 4px 10px;
  border-radius: 20px;
  z-index: 1;
}

/* ==========================================================================
   知识点卡片网格（分类详情页）— 标题 + 简介 + 难度标签
   ========================================================================== */
.kp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.kp-card {
  display: flex;
  flex-direction: column;
  background: var(--cream-card);
  border-radius: var(--r-lg);
  padding: 26px;
  border: 1px solid var(--border);
  transition: all 0.35s var(--ease);
}
.kp-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--blue-mist);
}
.kp-card .kp-num {
  width: 38px; height: 38px;
  border-radius: var(--r-sm);
  background: var(--blue-mist);
  color: var(--blue-deep);
  font-size: 14px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
}
.kp-card h4 { font-size: 17px; margin-bottom: 8px; }
.kp-card p { font-size: 13.5px; color: var(--body); margin-bottom: 16px; flex: 1; line-height: 1.75; }
.kp-card .kp-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
}
.kp-diff {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
}
.kp-diff.easy { background: var(--green-mist); color: var(--green-ink); }
.kp-diff.mid { background: #FFF0E6; color: #E8915A; }
.kp-diff.hard { background: #FFE6E6; color: #C85A5A; }
.kp-card .kp-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-deep);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.25s var(--ease);
}
.kp-card:hover .kp-link { gap: 8px; }

/* 分类详情页头部信息条 */
.cat-hero-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.cat-hero-bar .chb-item {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(8px);
  border-radius: var(--r);
  padding: 18px 20px;
  border: 1px solid var(--border);
}
.cat-hero-bar .chb-item strong {
  display: block;
  font-size: 24px;
  color: var(--blue-deep);
  margin-bottom: 2px;
}
.cat-hero-bar .chb-item span { font-size: 13px; color: var(--muted); }

@media (max-width: 1024px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .kp-grid { grid-template-columns: repeat(2, 1fr); }
  .cat-hero-bar { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .cat-grid { grid-template-columns: 1fr; }
  .kp-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .cat-hero-bar { grid-template-columns: 1fr; }
}