
:root{--ink:#132335;--muted:#657386;--line:#dce6ef;--brand:#126fd1;--brand2:#129586;--bg:#f6f9fc;--panel:#fff}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.72}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1180px;margin:0 auto;padding:0 20px}.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:66px}.brand{font-size:21px;font-weight:800;color:var(--ink)}nav{display:flex;gap:12px;flex-wrap:wrap}nav a{color:#2b4055;font-size:14px}.hero{background:linear-gradient(120deg,#ecf7ff,#fff 52%,#eefaf6);border-bottom:1px solid var(--line)}.hero-grid,.compact{display:grid;grid-template-columns:minmax(360px,.95fr) minmax(0,1fr);gap:30px 42px;align-items:center;padding-top:44px;padding-bottom:44px}.compact .crumb{grid-column:1/-1;margin-bottom:0}.compact>img{grid-column:1;grid-row:2}.compact>div{grid-column:2;grid-row:2}.hero h1{font-size:42px;line-height:1.17;margin:8px 0 14px}.hero p,.lead{font-size:18px;color:var(--muted);margin:0 0 18px}.hero img,.article-head img{width:100%;border-radius:8px;box-shadow:0 14px 34px rgba(15,50,90,.16)}.eyebrow{font-size:13px;color:var(--brand2);font-weight:800;text-transform:uppercase;letter-spacing:0}.actions,.quick,.tagrow{display:flex;gap:10px;flex-wrap:wrap}.actions a,.quick a,.tagrow a{background:#fff;border:1px solid var(--line);border-radius:6px;padding:8px 12px;color:#18324a}.quick{max-height:none;overflow:visible}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding-top:24px}.metrics div,.card,.cluster,.insight{background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px}.metrics strong{display:block;font-size:28px}.metrics span,.card span{color:var(--muted);font-size:13px}.insight{margin-top:22px}.insight p{color:#415168;margin:8px 0 0}h2{font-size:26px;margin:34px 0 14px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.clusters{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.card h3,.cluster h2{margin:0 0 8px;font-size:19px}.card p,.cluster p{color:var(--muted);margin:0 0 10px}.cluster div{display:flex;gap:8px;flex-wrap:wrap}.cluster div a{font-size:13px;background:#f3f7fb;border:1px solid var(--line);border-radius:6px;padding:5px 8px}.page{padding-top:36px;padding-bottom:48px}.article{padding-top:28px;padding-bottom:52px}.crumb{font-size:13px;color:var(--muted);margin-bottom:18px}.article-head{display:grid;grid-template-columns:1.3fr .7fr;gap:28px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:8px;padding:24px}.article h1{font-size:36px;line-height:1.2;margin:8px 0 12px}.toc{display:flex;gap:10px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px;margin:18px 0}.toc a{font-size:14px}.article section{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px;margin:16px 0}.article section h2{margin-top:0}.article li{margin:6px 0}.faq details{border-top:1px solid var(--line);padding:12px 0}.faq details:first-child{border-top:0}.faq summary{font-weight:700;cursor:pointer}.search{width:100%;font-size:17px;padding:13px 14px;border:1px solid var(--line);border-radius:8px;margin:12px 0 18px}.index-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.index-list li{background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px}.index-list span{display:block;color:var(--muted);font-size:13px}.footer{border-top:1px solid var(--line);background:#fff;margin-top:40px}.footgrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px;padding-top:24px;padding-bottom:24px;color:var(--muted)}.footgrid a{display:block;margin:4px 0}@media(max-width:860px){.hero-grid,.compact,.article-head,.footgrid{grid-template-columns:1fr}.compact .crumb,.compact>img,.compact>div{grid-column:auto;grid-row:auto}.hero h1{font-size:31px}.grid,.clusters,.metrics,.index-list{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column;padding-top:12px;padding-bottom:12px}}
