/* =========================================================
   极易智联 · GEO 支柱页专用样式 geo.css
   自包含：仅依赖 nav.css，不引用其它页面 CSS，避免类名冲突。
   主题：浅色阅读底 + 品牌深色导航（body.nav-dark）。
   ========================================================= */

:root {
  --jy-blue: #2563FF;
  --jy-cyan: #00C8FF;
  --jy-ink: #0A0F1A;
  --jy-body: #1F2A44;
  --jy-muted: #5B6B86;
  --jy-line: #E6EBF3;
  --jy-soft: #F5F8FF;
  --jy-grad: linear-gradient(135deg, #2563FF 0%, #087CFA 50%, #00C8FF 100%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--jy-body);
  background: #fff;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--jy-blue); text-decoration: none; }

/* 容器 */
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.geo-wrap { max-width: 880px; margin: 0 auto; padding: 0 24px; }

/* 面包屑 */
.breadcrumbs { background: var(--jy-soft); border-bottom: 1px solid var(--jy-line); }
.breadcrumbs .container { padding-top: 14px; padding-bottom: 14px; display: flex; gap: 8px; align-items: center; font-size: 13px; color: var(--jy-muted); }
.breadcrumbs a { color: var(--jy-muted); }
.breadcrumbs a:hover { color: var(--jy-blue); }
.bc-sep { color: #C2CCDA; }
.bc-current { color: var(--jy-body); font-weight: 600; }

/* Hero */
.geo-hero {
  position: relative;
  padding: 96px 0 56px;
  background:
    radial-gradient(900px 380px at 78% -8%, rgba(0,200,255,.14), transparent 60%),
    radial-gradient(820px 360px at 8% 4%, rgba(37,99,255,.16), transparent 60%),
    #fff;
  border-bottom: 1px solid var(--jy-line);
  overflow: hidden;
}
.geo-hero .geo-wrap { position: relative; z-index: 1; }
.geo-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: .04em;
  color: var(--jy-blue);
  background: rgba(37,99,255,.08);
  border: 1px solid rgba(37,99,255,.18);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 18px;
}
.geo-hero h1 {
  font-size: 40px; line-height: 1.25; margin: 0 0 18px;
  font-weight: 800; letter-spacing: -.01em; color: var(--jy-ink);
}
.geo-hero h1 .gradient {
  background: var(--jy-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.geo-lead { font-size: 17px; color: var(--jy-muted); margin: 0 0 22px; max-width: 760px; }
.geo-meta { display: flex; flex-wrap: wrap; gap: 10px; }
.geo-pill {
  font-size: 13px; color: var(--jy-body); background: #fff;
  border: 1px solid var(--jy-line); border-radius: 999px; padding: 7px 14px;
  box-shadow: 0 2px 8px rgba(10,15,26,.04);
}
.geo-pill b { color: var(--jy-blue); }

/* 目录 TOC */
.geo-toc {
  background: var(--jy-soft); border: 1px solid var(--jy-line); border-radius: 16px;
  padding: 20px 22px; margin: 40px auto; max-width: 880px;
}
.geo-toc .toc-title { font-size: 14px; font-weight: 700; color: var(--jy-ink); margin: 0 0 12px; }
.geo-toc ol { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 22px; }
.geo-toc a { color: var(--jy-muted); font-size: 14px; transition: color .15s; }
.geo-toc a:hover { color: var(--jy-blue); }
.geo-toc a::before { content: "› "; color: #C2CCDA; }

/* 正文排版 */
.geo-prose { padding: 8px 0 8px; }
.geo-prose h2 {
  font-size: 26px; line-height: 1.4; margin: 48px 0 16px; font-weight: 800; color: var(--jy-ink);
  display: flex; align-items: baseline; gap: 12px;
}
.geo-prose h2 .num {
  flex: none; font-size: 16px; font-weight: 800; color: #fff;
  background: var(--jy-grad); width: 30px; height: 30px; border-radius: 9px;
  display: inline-flex; align-items: center; justify-content: center; transform: translateY(2px);
}
.geo-prose h3 { font-size: 19px; margin: 30px 0 12px; font-weight: 700; color: var(--jy-ink); }
.geo-prose p { margin: 0 0 16px; color: var(--jy-body); }
.geo-prose ul, .geo-prose ol { margin: 0 0 18px; padding-left: 22px; }
.geo-prose li { margin: 0 0 10px; }
.geo-prose strong { color: var(--jy-ink); }
.geo-prose table { width: 100%; border-collapse: collapse; margin: 18px 0 24px; font-size: 14.5px; }
.geo-prose th, .geo-prose td { border: 1px solid var(--jy-line); padding: 11px 14px; text-align: left; vertical-align: top; }
.geo-prose th { background: var(--jy-soft); color: var(--jy-ink); font-weight: 700; }
.geo-prose tr:nth-child(even) td { background: #FBFCFE; }

/* 核心观点 callout */
.geo-keypoint {
  position: relative; margin: 26px 0; padding: 20px 22px 20px 24px;
  background: linear-gradient(180deg, #F5F8FF, #FFFFFF);
  border: 1px solid var(--jy-line); border-left: 4px solid transparent;
  border-image: var(--jy-grad) 1;
  border-radius: 14px; box-shadow: 0 10px 30px rgba(10,15,26,.05);
}
.geo-keypoint .kp-label {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12.5px; font-weight: 800; letter-spacing: .03em; color: var(--jy-blue);
  text-transform: uppercase; margin-bottom: 8px;
}
.geo-keypoint p { margin: 0; font-size: 16px; color: var(--jy-body); }
.geo-keypoint b { color: var(--jy-ink); }

/* 数据胶囊行 */
.geo-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 22px 0 28px; }
.geo-fact {
  background: #fff; border: 1px solid var(--jy-line); border-radius: 14px; padding: 18px;
  text-align: center; box-shadow: 0 6px 18px rgba(10,15,26,.04);
}
.geo-fact .n { font-size: 28px; font-weight: 800; color: var(--jy-blue);
  background: var(--jy-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.geo-fact .t { font-size: 13px; color: var(--jy-muted); margin-top: 4px; }

/* FAQ */
.geo-faq { margin: 18px 0 8px; }
.geo-faq details {
  border: 1px solid var(--jy-line); border-radius: 12px; padding: 4px 18px; margin-bottom: 12px;
  background: #fff; transition: border-color .15s;
}
.geo-faq details[open] { border-color: rgba(37,99,255,.4); }
.geo-faq summary {
  cursor: pointer; list-style: none; font-weight: 700; color: var(--jy-ink);
  padding: 14px 0; display: flex; align-items: center; gap: 10px; font-size: 16px;
}
.geo-faq summary::-webkit-details-marker { display: none; }
.geo-faq summary::before {
  content: "Q"; flex: none; width: 24px; height: 24px; border-radius: 7px;
  background: var(--jy-grad); color: #fff; font-size: 13px; font-weight: 800;
  display: inline-flex; align-items: center; justify-content: center;
}
.geo-faq details p { margin: 0 0 16px; color: var(--jy-body); padding-left: 34px; }

/* 总结盒 */
.geo-summary {
  margin: 36px 0; padding: 24px; border-radius: 16px;
  background: linear-gradient(135deg, rgba(37,99,255,.06), rgba(0,200,255,.06));
  border: 1px solid rgba(37,99,255,.18);
}
.geo-summary h3 { margin: 0 0 12px; font-size: 18px; color: var(--jy-ink); }
.geo-summary ul { margin: 0; padding-left: 20px; }
.geo-summary li { margin-bottom: 8px; }

/* 关于极易智联 */
.geo-brand {
  display: flex; gap: 18px; align-items: flex-start; margin: 30px 0;
  padding: 22px; border-radius: 16px; background: var(--jy-ink); color: #fff;
}
.geo-brand .gb-logo { height: 34px; flex: none; margin-top: 2px; }
.geo-brand p { margin: 0; color: rgba(255,255,255,.82); font-size: 15px; }
.geo-brand b { color: #fff; }

/* 相关洞察（复用产品页结构） */
#related-insights { padding: 64px 0; background: var(--jy-soft); border-top: 1px solid var(--jy-line); }
.rel-sec-head { margin-bottom: 26px; }
.rel-eyebrow { display: inline-block; font-size: 13px; font-weight: 700; color: var(--jy-blue);
  background: rgba(37,99,255,.08); border: 1px solid rgba(37,99,255,.18);
  padding: 5px 13px; border-radius: 999px; margin-bottom: 12px; }
.rel-title { font-size: 28px; font-weight: 800; color: var(--jy-ink); margin: 0; }
.rel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.rel-card {
  display: flex; flex-direction: column; gap: 8px; background: #fff;
  border: 1px solid var(--jy-line); border-radius: 16px; padding: 20px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.rel-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(10,15,26,.1); border-color: rgba(37,99,255,.4); }
.rel-tag { align-self: flex-start; font-size: 12px; font-weight: 700; color: var(--jy-blue);
  background: rgba(37,99,255,.08); border-radius: 999px; padding: 4px 12px; }
.rel-card h3 { font-size: 17px; margin: 0; color: var(--jy-ink); line-height: 1.45; }
.rel-card p { font-size: 14px; color: var(--jy-muted); margin: 0; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.rel-more { margin-top: auto; font-size: 14px; font-weight: 700; color: var(--jy-blue); }

/* CTA */
.geo-cta { padding: 70px 0; }
.geo-cta .cta {
  max-width: 880px; margin: 0 auto; text-align: center;
  background: var(--jy-grad); border-radius: 22px; padding: 44px 30px; color: #fff;
  box-shadow: 0 24px 60px rgba(37,99,255,.28);
}
.geo-cta h2 { font-size: 26px; margin: 0 0 12px; color: #fff; }
.geo-cta p { color: rgba(255,255,255,.9); margin: 0 0 22px; }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-primary, .btn-ghost {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: 999px;
  font-weight: 700; font-size: 15px; text-decoration: none; transition: transform .15s, box-shadow .15s;
}
.btn-primary { background: #fff; color: var(--jy-blue); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { background: rgba(255,255,255,.14); color: #fff; border: 1px solid rgba(255,255,255,.5); }
.btn-ghost:hover { background: rgba(255,255,255,.24); }

/* Footer */
footer { background: var(--jy-ink); color: rgba(255,255,255,.7); padding: 44px 0 30px; }
.footer-inner { max-width: 1180px; margin: 0 auto; padding: 0 24px; text-align: center; }
.footer-inner img { height: 30px; margin-bottom: 14px; }
.footer-inner p { margin: 6px 0; font-size: 14px; }
.footer-inner .fh { color: #fff; font-weight: 600; }
.footer-inner .divider { height: 1px; background: rgba(255,255,255,.12); margin: 18px auto; max-width: 200px; }

/* 响应式 */
@media (max-width: 860px) {
  .geo-hero h1 { font-size: 30px; }
  .geo-toc ol { grid-template-columns: 1fr; }
  .geo-facts { grid-template-columns: 1fr; }
  .rel-grid { grid-template-columns: 1fr; }
  .geo-brand { flex-direction: column; }
}
@media (max-width: 560px) {
  .geo-hero { padding: 80px 0 44px; }
  .geo-prose h2 { font-size: 22px; }
}

/* =========================================================
   行业知识库页 KB（custom-knowledge / decoration-knowledge）
   复用 geo-hero / breadcrumbs / footer / cta，仅扩展以下
   ========================================================= */

/* 入口卡：产品页 + 支柱页 */
.kb-links { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 36px 0 8px; }
.kb-link-card {
  display: flex; flex-direction: column; gap: 6px;
  padding: 22px 24px; border-radius: 16px;
  background: #fff; border: 1px solid var(--jy-line);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.kb-link-card:hover { transform: translateY(-3px); box-shadow: 0 14px 36px rgba(10,15,26,.08); border-color: rgba(37,99,255,.4); }
.kb-link-card .kl-tag { font-size: 12px; font-weight: 700; color: var(--jy-blue); letter-spacing: .03em; }
.kb-link-card .kl-title { font-size: 17px; font-weight: 800; color: var(--jy-ink); }
.kb-link-card .kl-desc { font-size: 14px; color: var(--jy-muted); margin: 0; }
.kb-link-card .kl-go { margin-top: 4px; font-size: 14px; font-weight: 700; color: var(--jy-blue); }

/* 文章列表网格（2 列） */
#kb-section { padding: 24px 0 72px; }
.kb-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.kb-card {
  display: flex; flex-direction: column; gap: 8px; background: #fff;
  border: 1px solid var(--jy-line); border-radius: 16px; padding: 22px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.kb-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(10,15,26,.1); border-color: rgba(37,99,255,.4); }
.kb-tag { align-self: flex-start; font-size: 12px; font-weight: 700; color: var(--jy-blue);
  background: rgba(37,99,255,.08); border-radius: 999px; padding: 4px 12px; }
.kb-card h3 { font-size: 18px; margin: 0; color: var(--jy-ink); line-height: 1.45; }
.kb-card p { font-size: 14.5px; color: var(--jy-muted); margin: 0; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.kb-meta { font-size: 13px; color: #9CA3AF; }
.kb-more { margin-top: auto; font-size: 14px; font-weight: 700; color: var(--jy-blue); }

/* 空态 */
.kb-empty { grid-column: 1 / -1; text-align: center; padding: 56px 24px;
  background: var(--jy-soft); border: 1px dashed var(--jy-line); border-radius: 16px; }
.kb-empty p { margin: 6px 0; color: var(--jy-muted); font-size: 15px; }

@media (max-width: 860px) {
  .kb-links { grid-template-columns: 1fr; }
  .kb-grid { grid-template-columns: 1fr; }
}