/* =========================================================
   科学智源 — GEO 内容站公共样式
   与主站同一套色系：墨绿 + 品牌绿 #0A7D77 + 薄荷 #5FBFBB
   ========================================================= */
:root{
  --ink:#081917; --ink2:#3A504D; --ink3:#5F7572; --muted:#7B8F8C; --faint:#93A7A4;
  --brand:#0A7D77; --brand-d:#06605C; --brand-l:#E9F6F4; --brand-l2:#CBE7E3;
  --mint:#5FBFBB; --mint-l:#7CD6D2; --sun:#FFD932;
  --paper:#FFFFFF; --bg:#F7FAF9;
  --line:#E1EAE7; --line2:#EDF4F2;
  --amber:#B07310; --amber-l:#FDF6E3; --rose:#A93B4E; --rose-l:#FBEDEF;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
/* 吸顶导航避让：锚点跳转后标题不被 64px 导航遮住 */
[id]{scroll-margin-top:98px;}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);
  font-size:15px;line-height:1.85;-webkit-font-smoothing:antialiased;}
a{color:var(--brand-d);text-decoration:none;}
a:hover{color:var(--brand);}
img{max-width:100%;}
.wrap{max-width:1160px;margin:0 auto;padding:0 26px;}

/* ---------- 顶部导航 ---------- */
.nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);}
.nav-in{display:flex;align-items:center;gap:20px;height:88px;}
.brand{display:flex;align-items:center;gap:9px;font-weight:750;font-size:15.5px;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;flex:none;}
.brand img{display:block;height:18px;width:auto;}
.brand span{color:var(--ink);}
.nav-links{display:flex;align-items:center;gap:2px;font-size:13.2px;margin:0 auto;
  padding:4px;border-radius:11px;background:#F2F7F6;border:1px solid #E4EDEB;}
.nav-links a{color:#4A5C59;position:relative;padding:7px 11px;border-radius:8px;font-weight:600;
  letter-spacing:-.005em;white-space:nowrap;transition:background .16s,color .16s,box-shadow .16s;}
.nav-links a:hover{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(6,20,19,.07);}
.nav-links a.on{color:var(--brand-d);background:#fff;
  box-shadow:0 2px 10px -4px rgba(6,20,19,.22),inset 0 0 0 1px rgba(10,125,119,.18);}
.nav.scrolled{box-shadow:0 10px 26px -22px rgba(6,20,19,.6);}
.nav-cta{margin-left:0;display:flex;gap:10px;align-items:center;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;padding:0 16px;
  border-radius:8px;font-size:13.2px;font-weight:600;font-family:inherit;border:1px solid transparent;
  cursor:pointer;transition:.16s;white-space:nowrap;}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-d);color:#fff;}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink2);}
.btn-ghost:hover{border-color:var(--brand-l2);color:var(--brand-d);}

/* ---------- 面包屑 ---------- */
.crumb{font-size:12px;color:var(--faint);padding:20px 0 0;display:flex;gap:7px;align-items:center;flex-wrap:wrap;}
.crumb a{color:var(--muted);}
.crumb i{font-style:normal;color:#C6D4D1;}

/* ---------- 布局 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 296px;gap:46px;align-items:start;padding:22px 0 60px;}
.layout>*{min-width:0;}
article{max-width:760px;}

/* ---------- 文章头 ---------- */
.eyebrow{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--brand);
  text-transform:uppercase;font-weight:600;margin-bottom:12px;}
h1{font-size:33px;line-height:1.32;letter-spacing:-.022em;margin:0 0 16px;font-weight:780;color:var(--ink);}
.lead{font-size:16px;line-height:1.9;color:var(--ink2);margin:0 0 18px;}
.byline{display:flex;flex-wrap:wrap;gap:14px;font-size:11.8px;color:var(--faint);
  padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:26px;}
.byline b{color:var(--ink3);font-weight:600;}

/* ---------- 结论前置 ---------- */
.ans{background:var(--brand-l);border-left:3px solid var(--brand);border-radius:0 10px 10px 0;
  padding:16px 20px 17px;margin:0 0 30px;}
.ans .lb{font-size:10.5px;font-weight:700;color:var(--brand-d);letter-spacing:.12em;
  font-family:var(--mono);text-transform:uppercase;display:block;margin-bottom:7px;}
.ans p{margin:0;font-size:14.6px;line-height:1.9;color:#0B3532;}
.ans b{color:var(--brand-d);}

/* ---------- 正文 ---------- */
h2{font-size:20px;line-height:1.45;margin:40px 0 14px;padding-left:12px;border-left:3px solid var(--mint);
  color:var(--ink);letter-spacing:-.012em;font-weight:730;}
h3{font-size:15.4px;margin:24px 0 8px;color:var(--ink);font-weight:680;}
p{margin:0 0 14px;color:var(--ink2);}
ul,ol{padding-left:20px;margin:0 0 16px;color:var(--ink2);}
li{margin-bottom:7px;}
li>b,li>strong{color:var(--ink);}
code{font-family:var(--mono);font-size:12.4px;background:var(--brand-l);color:var(--brand-d);
  padding:1px 5px;border-radius:4px;}
strong{color:var(--ink);font-weight:650;}

/* ---------- 表格 ---------- */
.tw{overflow-x:auto;margin:16px 0 22px;border:1px solid var(--line);border-radius:10px;}
table{width:100%;border-collapse:collapse;font-size:13px;}
th{background:#F4F9F8;text-align:left;padding:10px 14px;font-weight:650;color:var(--ink);
  border-bottom:1px solid var(--line);white-space:nowrap;font-size:12.4px;}
td{padding:10px 14px;border-bottom:1px solid var(--line2);color:var(--ink2);vertical-align:top;line-height:1.75;}
tr:last-child td{border-bottom:none;}
td b{color:var(--ink);}
td.num{font-variant-numeric:tabular-nums;white-space:nowrap;}

/* ---------- 步骤 ---------- */
.steps{list-style:none;padding:0;margin:18px 0 24px;counter-reset:s;}
.steps li{counter-increment:s;position:relative;padding:0 0 16px 40px;margin:0;border-left:2px solid var(--line);
  margin-left:13px;}
.steps li:last-child{border-left-color:transparent;padding-bottom:0;}
.steps li::before{content:counter(s);position:absolute;left:-14px;top:0;width:26px;height:26px;border-radius:50%;
  background:#fff;border:2px solid var(--brand-l2);color:var(--brand-d);font-size:12px;font-weight:700;
  display:grid;place-items:center;font-variant-numeric:tabular-nums;}
.steps b{display:block;color:var(--ink);font-size:14px;margin-bottom:2px;}
.steps span{display:block;font-size:13.4px;color:var(--ink2);line-height:1.8;}

/* ---------- 提示块 ---------- */
.note{border-radius:0 9px 9px 0;padding:13px 16px;font-size:13.4px;line-height:1.85;margin:18px 0 22px;}
.note b{display:block;margin-bottom:4px;font-size:13px;}
.note.warn{background:var(--amber-l);border-left:3px solid #E0A93C;color:#7A4E0A;}
.note.warn b{color:#8D5A0C;}
.note.bad{background:var(--rose-l);border-left:3px solid #D18C97;color:#8B2C3D;}
.note.bad b{color:#8B2C3D;}
.note.ok{background:var(--brand-l);border-left:3px solid var(--brand);color:#0B3532;}
.note.ok b{color:var(--brand-d);}

/* ---------- 问答 ---------- */
.faq{margin:14px 0 8px;}
.faq .qa{padding:15px 0;border-bottom:1px solid var(--line2);}
.faq .qa:first-child{border-top:1px solid var(--line2);}
.faq h3{margin:0 0 6px;font-size:14.4px;}
.faq h3::before{content:'Q ';color:var(--brand);font-family:var(--mono);font-size:12px;font-weight:700;}
.faq p{margin:0;font-size:13.8px;line-height:1.85;}

/* ---------- 侧栏 ---------- */
aside{position:sticky;top:82px;display:flex;flex-direction:column;gap:16px;}
.side{border:1px solid var(--line);border-radius:11px;background:#fff;overflow:hidden;}
.side-h{padding:12px 15px;border-bottom:1px solid var(--line2);font-size:12.2px;font-weight:700;
  color:var(--ink);background:#FAFCFB;display:flex;justify-content:space-between;align-items:center;}
.side-h span{font-weight:500;color:var(--faint);font-size:10.6px;}
.side-b{padding:8px 15px 12px;}
.side-b a{display:block;padding:8px 0;font-size:12.8px;color:var(--ink2);border-bottom:1px dashed var(--line2);line-height:1.6;}
.side-b a:last-child{border-bottom:none;}
.side-b a:hover{color:var(--brand-d);}
.side-b a em{display:block;font-style:normal;font-size:10.8px;color:var(--faint);margin-top:2px;}
.side-cta{padding:15px;}
.side-cta h4{margin:0 0 6px;font-size:13.6px;color:var(--ink);}
.side-cta p{margin:0 0 12px;font-size:12.2px;line-height:1.7;color:var(--muted);}
.side-cta .btn{width:100%;}
.toc a{display:block;padding:6px 15px;font-size:12.4px;color:var(--muted);border-left:2px solid transparent;}
.toc a:hover{color:var(--brand-d);border-left-color:var(--brand-l2);background:#FAFCFB;}

/* ---------- 侧栏 · GEO 服务地图 ---------- */
.geomap-side{padding:13px 15px 14px;}
.geomap-side .gm-def{font-size:12px;line-height:1.7;color:var(--muted);margin:0 0 12px;}
.geomap-side .gm-def b{color:var(--brand-d);font-weight:650;}
.geomap-side .gm-list{list-style:none;margin:0;padding:0;}
.geomap-side .gm-list li{display:flex;flex-direction:column;gap:2px;padding:8px 0;border-bottom:1px dashed var(--line2);}
.geomap-side .gm-list li:last-child{border-bottom:none;}
.geomap-side .gm-list a{font-size:12.6px;font-weight:650;color:var(--ink2);text-decoration:none;line-height:1.5;}
.geomap-side .gm-list a:hover{color:var(--brand-d);}
.geomap-side .gm-list span{font-size:10.8px;color:var(--faint);line-height:1.5;}
.geomap-side .gm-note{margin-top:12px;padding-top:11px;border-top:1px solid var(--line2);font-size:10.8px;color:var(--faint);line-height:1.7;}
.geomap-side .gm-note b{color:var(--muted);font-weight:600;}

/* ---------- 相关阅读 ---------- */
.rel{margin:44px 0 0;padding-top:26px;border-top:1px solid var(--line);}
.rel h2{border:none;padding-left:0;font-size:16px;margin:0 0 14px;}
.rel-g{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;}
.rel-a{display:block;border:1px solid var(--line);border-radius:10px;padding:14px 16px;background:#fff;transition:.16s;}
.rel-a:hover{border-color:var(--brand-l2);box-shadow:0 8px 22px -18px rgba(8,25,23,.4);}
.rel-a b{display:block;font-size:13.4px;color:var(--ink);line-height:1.55;margin-bottom:3px;}
.rel-a span{display:block;font-size:11.8px;color:var(--muted);line-height:1.65;}
.rel-a i{display:block;font-style:normal;font-family:var(--mono);font-size:10px;color:var(--brand);
  margin-top:7px;letter-spacing:.06em;}

/* ---------- 转化条 ---------- */
.cta-band{background:linear-gradient(135deg,#07201D,#0A2E2A 58%,#0A3A35);border-radius:14px;
  padding:30px 32px;color:#fff;margin:44px 0 10px;display:flex;gap:26px;align-items:center;flex-wrap:wrap;}
.cta-band h3{margin:0 0 6px;font-size:18px;color:#fff;font-weight:730;letter-spacing:-.01em;}
.cta-band p{margin:0;font-size:13.2px;color:#B9CFCB;line-height:1.75;max-width:520px;}
.cta-band .btn{background:var(--sun);color:#3A2C00;font-weight:700;}
.cta-band .btn:hover{background:#FFE566;color:#3A2C00;}
.cta-band .sp{margin-left:auto;display:flex;gap:10px;align-items:center;flex-wrap:wrap;}

/* ---------- 页尾 ---------- */
.ft{background:#061413;color:#8FA6A2;padding:44px 0 26px;font-size:12.3px;margin-top:20px;}
.ft-in{display:grid;grid-template-columns:1.1fr 2fr;gap:40px;padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.08);}
.ft-logo{display:flex;align-items:center;gap:9px;color:#fff;font-weight:700;font-size:15px;margin-bottom:12px;}
.ft-logo img{display:block;height:19px;width:auto;}
.ft p{margin:0 0 10px;color:#7E938F;font-size:12px;line-height:1.9;max-width:330px;}
.ft-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.ft-col h5{margin:0 0 10px;font-size:11.4px;color:#fff;font-weight:650;letter-spacing:.04em;}
.ft-col a{display:block;color:#8FA6A2;font-size:12px;padding:3.5px 0;line-height:1.6;}
.ft-col a:hover{color:var(--mint-l);}
.ft-bot{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:18px;font-size:11.5px;color:#6E837F;}
.ft-bot a{color:#8FA6A2;margin-left:14px;}
.ft-bot .ft-copy{display:inline-flex;align-items:center;flex-wrap:wrap;gap:0 12px;}
.ft-bot .ft-icp{color:#6E837F;margin-left:0;text-decoration:none;white-space:nowrap;}
.ft-bot .ft-icp:hover{color:#BBD2CE;text-decoration:underline;text-underline-offset:3px;}
.slogan{font-size:11.4px;color:#6E837F;margin-top:2px;letter-spacing:.02em;}

/* 页尾联系方式与二维码 */
.ft-contact{display:flex;flex-wrap:wrap;align-items:flex-start;gap:6px 26px;padding:16px 0 20px;border-bottom:1px solid rgba(255,255,255,.08);font-size:12px;color:#7E938F;}
.ft-c-item{display:flex;gap:8px;align-items:baseline;line-height:1.8;}
.ft-c-item b{flex:none;color:#BBD2CE;font-weight:600;}
.ft-c-item span{max-width:430px;}
.ft-c-item a{color:#8FA6A2;}
.ft-c-item a:hover{color:var(--mint-l);}
.ft-c-qr{display:flex;gap:14px;margin-left:auto;}
.ft-c-qr figure{margin:0;text-align:center;}
.ft-c-qr img{display:block;width:92px;height:92px;object-fit:contain;background:#fff;border-radius:7px;padding:5px;box-sizing:border-box;}
.ft-c-qr figcaption{margin-top:6px;font-size:11px;color:#7E938F;}
@media (max-width:900px){
  .ft-c-qr{margin-left:0;}
  .ft-contact{gap:4px 18px;padding:14px 0 18px;}
  .ft-c-item{width:100%;}
}

@media (max-width:1024px){
  .layout{grid-template-columns:1fr;gap:10px;}
  aside{position:static;flex-direction:row;flex-wrap:wrap;margin-top:30px;}
  .side{flex:1 1 260px;}
  .side.toc{display:none;}
  .ft-in{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:980px){
  .nav-links{display:none;}
  .nav-cta{margin-left:auto;}
}
@media (max-width:720px){
  body{font-size:14.4px;}
  .nav-in{height:66px;}
  .wrap{padding:0 18px;}
  h1{font-size:25px;line-height:1.4;}
  h2{font-size:17.6px;margin-top:32px;}
  .lead{font-size:14.6px;}
  .nav-links{display:none;}
  .nav-cta{margin-left:auto;}
  .nav-cta .btn-ghost{display:none;}
  .rel-g{grid-template-columns:1fr;}
  .cta-band{padding:22px 20px;}
  .cta-band .sp{margin-left:0;width:100%;}
  .cta-band .btn{width:100%;}
  .ft-cols{grid-template-columns:1fr 1fr;}
  .ans{padding:14px 15px;}
  table{font-size:12.2px;}
  th,td{padding:8px 10px;}
}
@media print{
  .nav,.aside,.cta-band,.rel,footer{display:none;}
  .layout{display:block;}
  article{max-width:none;}
}

/* ---------- 方案中心 ---------- */
.hub-kpi{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:11px;overflow:hidden;margin:0 0 34px;}
.hub-kpi>div{background:#fff;padding:16px 18px;}
.hub-kpi b{display:block;font-size:26px;font-weight:780;letter-spacing:-.03em;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.1;}
.hub-kpi span{display:block;font-size:11.4px;color:var(--muted);margin-top:5px;line-height:1.55;}
.hub-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin:16px 0 10px;}
.hub-grid.two{grid-template-columns:1fr 1fr;}
.hub-card{display:block;border:1px solid var(--line);border-radius:11px;padding:18px 19px 16px;
  background:#fff;transition:.18s ease;position:relative;}
.hub-card:hover{border-color:var(--brand-l2);box-shadow:0 12px 30px -22px rgba(8,25,23,.45);transform:translateY(-1px);}
.hc-tag{font-family:var(--mono);font-size:9.6px;letter-spacing:.11em;color:var(--faint);
  text-transform:uppercase;margin-bottom:8px;}
.hub-card h3{margin:0 0 8px;font-size:15.2px;line-height:1.45;color:var(--ink);font-weight:700;letter-spacing:-.01em;}
.hub-card p{margin:0;font-size:12.6px;line-height:1.8;color:var(--ink3);}
.hc-kw{display:inline-block;margin-top:12px;font-size:10.8px;color:var(--brand-d);
  background:var(--brand-l);border-radius:4px;padding:2px 7px;font-family:var(--mono);}
main>h2:first-of-type{margin-top:0;}
@media (max-width:860px){
  .hub-grid,.hub-grid.two{grid-template-columns:1fr;}
  .hub-kpi{grid-template-columns:1fr 1fr;}
}
.hub-hero{padding:14px 0 30px;border-bottom:1px solid var(--line);margin-bottom:30px;}
.hub-hero h1{font-size:36px;max-width:720px;}
.hub-hero .lead{max-width:720px;}
.hub-hero .ans{margin:22px 0 0;max-width:800px;}
@media (max-width:720px){ .hub-hero h1{font-size:26px;} }