:root{--ink:#0A1628;--blue:#014DB2;--navy:#001645;--paper:#F9F9F9;--line:#EAEAEA;--muted:#6B7280;--sky:#EAF3FF}
*{box-sizing:border-box}
body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.site-header nav{max-width:1280px;margin:0 auto;padding:0 40px;height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-size:20px;font-weight:700;white-space:nowrap}
.brand span{font-size:10px;color:var(--muted);margin-left:8px;letter-spacing:.08em}
.site-header ul{display:flex;gap:24px;list-style:none;margin:0;padding:0;font-size:14px;color:var(--muted)}
.site-header ul a[href="/"]{color:var(--ink);font-weight:600}
.nav-cta{background:var(--blue);color:#fff;padding:10px 18px;border-radius:999px;font-size:13px;font-weight:600;white-space:nowrap}
main{max-width:1280px;margin:0 auto}
.hero{background:linear-gradient(135deg,#004DB3 0%,#001645 100%);color:#fff;padding:64px 80px 32px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:56px;align-items:start}
.hero-copy,.hero-visual{min-width:0}
.hero-img{border-radius:16px;overflow:hidden;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.25);line-height:0;box-shadow:0 18px 40px rgba(0,0,0,.28)}
.hero-img img{display:block;width:100%;height:auto;aspect-ratio:1/1;object-fit:cover}
.imgcap{font-size:12px;line-height:1.7;color:#8FB6EE;margin:10px 0 0}
.kicker,.eyebrow{font-size:12px;letter-spacing:.1em;color:#8FB6EE;margin:0 0 16px;font-weight:600}
.hero h1{font-size:52px;line-height:1.28;margin:0 0 20px;max-width:760px;text-wrap:balance}
.hero .lead{font-size:17px;line-height:1.75;color:#C6D8F0;max-width:760px;margin:0 0 20px}
.chips{list-style:none;display:flex;gap:10px;padding:0;margin:0 0 24px;flex-wrap:wrap}
.chips li{border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.1);padding:8px 16px;border-radius:999px;font-size:13px}
.btn{display:inline-block;padding:14px 26px;border-radius:999px;font-size:15px;font-weight:600;margin:4px 8px 4px 0}
.btn-primary{background:#fff;color:var(--blue)}
.btn-ghost{border:1px solid rgba(255,255,255,.45);color:#fff}
.btn-outline{border:1px solid #D5DCE6;color:var(--blue);background:#fff}
.btn-outline:hover{border-color:var(--blue);text-decoration:none}
.hero-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;border-top:1px solid rgba(255,255,255,.18);margin:40px 0 0;padding-top:20px}
.hero-facts div{min-width:0}
.hero-facts dt{font-size:12px;color:#8FB6EE}
.hero-facts dd{margin:4px 0 0;font-size:13px;color:#C6D8F0}
.section{padding:64px 80px;background:#fff}
section[id]{scroll-margin-top:88px}
.section.alt{background:var(--paper)}
.section h2,.pdp h1{font-size:30px;line-height:1.4;margin:0 0 16px}
.section .intro,.pdp .lead{font-size:15px;color:var(--muted);max-width:900px;margin:0 0 28px}
.section .eyebrow{color:var(--blue)}
.note{font-size:12px;color:#9CA3AF;margin-top:16px}
.kv-table{width:100%;border-collapse:collapse;background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:14px}
.kv-table caption{text-align:left;font-size:16px;font-weight:600;padding:18px 22px;background:#fff;border-bottom:1px solid var(--line)}
.kv-table th[scope=row]{width:190px;text-align:left;font-weight:400;color:var(--muted);padding:10px 22px;border-bottom:1px solid var(--line);vertical-align:top}
.kv-table td{padding:10px 22px;border-bottom:1px solid var(--line);font-weight:500;vertical-align:top}
.kv-table thead th{text-align:left;background:#fff;padding:12px 22px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.kv-table code{font-size:12px;color:var(--blue);word-break:break-all}
.kv-table tr:last-child th,.kv-table tr:last-child td{border-bottom:0}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cards.three{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;min-width:0}
.card h3{font-size:18px;line-height:1.5;margin:0 0 8px;text-wrap:balance}
.card>p{font-size:13px;color:var(--muted);margin:0 0 14px}
.card dl{display:grid;grid-template-columns:auto 1fr;gap:2px 12px;font-size:13px;margin:0 0 12px}
.card dt{color:var(--muted);white-space:nowrap}
.card dd{margin:0}
.card>a{font-size:13px;color:var(--blue);font-weight:600}
/* 带主图的产品卡：图片贴边铺满顶部，文字区独立内边距 */
.card-product{padding:0;overflow:hidden;display:flex;flex-direction:column}
.card-media{display:block;background:#fff;border-bottom:1px solid var(--line)}
.card-media img{display:block;width:100%;height:auto;aspect-ratio:1/1;object-fit:contain;background:#fff}
.card-product .card-body{padding:18px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-product h3{font-size:17px;line-height:1.55;letter-spacing:-.01em}
.card-product .card-body>a:last-child{margin-top:auto}
/* 详情页产品图示块 */
.pdp-figure{display:flex;gap:26px;align-items:flex-start;margin:20px 0 0;padding:18px;max-width:880px;
  background:#fff;border:1px solid var(--line);border-radius:16px}
.pdp-figure img{display:block;width:300px;height:auto;border-radius:12px}
.pdp-figure figcaption{font-size:13px;color:var(--muted);line-height:1.9;margin:0}
.pdp-figure figcaption strong{display:block;font-size:15px;color:var(--ink);margin-bottom:6px}
.pdp-figure figcaption p{margin:0 0 6px}
.figure-facts{display:grid;grid-template-columns:auto 1fr;gap:2px 14px;margin:12px 0 0;
  font-size:13px;line-height:1.9;max-width:300px}
.figure-facts dt{color:var(--muted)}
.figure-facts dd{margin:0;color:var(--ink);font-weight:600}
.card .metric{color:var(--blue);font-weight:600;font-size:15px}
.subsection{margin-top:32px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 28px}
.subsection h2,.subsection h3{font-size:18px;margin:0 0 14px}
.subsection ul{padding-left:20px;font-size:13px;line-height:2}
.subsection ol{padding-left:20px;font-size:13px;line-height:2}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.kpis div{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:24px}
.kpis strong{display:block;font-size:28px;color:var(--blue);margin-bottom:8px}
.kpis span{font-size:13px;color:var(--muted)}
.fact-list{display:grid;grid-template-columns:200px 1fr;gap:8px 20px;margin:0;font-size:14px}
.fact-list dt{color:var(--muted);font-weight:400}
.fact-list dd{margin:0;font-weight:500}
.card h3 a{color:inherit}
.card h3 a:hover{color:var(--blue);text-decoration:none}
.card .cat{font-size:12px;color:var(--blue);margin:0 0 10px}
.faq-list{margin:0}
.faq-list dt{font-size:16px;font-weight:600;background:#fff;border:1px solid var(--line);border-radius:12px 12px 0 0;padding:16px 24px;margin-top:12px}
.faq-list dd{margin:0;background:#fff;border:1px solid var(--line);border-top:0;border-radius:0 0 12px 12px;padding:0 24px 18px;font-size:14px;color:#4B5563}
.cta{background:linear-gradient(135deg,#001645 0%,#004DB3 100%);color:#fff}
.cta h2{font-size:34px;margin:0 0 12px}
.cta>p{color:#C6D8F0;font-size:16px;max-width:900px;margin:0 0 28px}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.contact-grid div{background:rgba(255,255,255,.08);border-radius:12px;padding:22px}
.contact-grid span{display:block;font-size:13px;color:#8FB6EE}
.contact-grid strong{display:block;font-size:24px;margin:8px 0}
.contact-grid small{font-size:12px;color:#C6D8F0}
.site-footer{background:var(--ink);color:#8FA3BF;padding:48px 80px 32px;font-size:12px;line-height:2}
.site-footer p{margin:0 0 8px}
.site-footer strong{color:#fff;font-size:16px}
.site-footer nav{margin:16px 0;font-size:12px}
.site-footer a{color:#8FB6EE}
.pdp{max-width:1280px;padding:40px 80px 64px}
.pdp h1{font-size:36px;line-height:1.35;margin:0 0 12px;text-wrap:balance}
.pdp .eyebrow{color:var(--blue)}
.breadcrumb ol{list-style:none;display:flex;gap:8px;padding:0;margin:0 0 24px;font-size:12px;color:var(--muted)}
.breadcrumb li+li:before{content:">";margin-right:8px}
.note-box{background:var(--sky)}
@media(max-width:900px){
  .site-header nav{padding:10px 20px 0;flex-wrap:wrap;height:auto;min-height:64px;gap:12px}
  .site-header ul{display:flex;order:3;width:100%;gap:20px;overflow-x:auto;padding:0 0 10px;font-size:13px;white-space:nowrap;-webkit-overflow-scrolling:touch}
  .hero,.section,.pdp{padding-left:20px;padding-right:20px}
  .hero h1{font-size:30px}
  .hero-grid{grid-template-columns:1fr;gap:24px}
  .hero-img{aspect-ratio:auto}
  .section h2{font-size:24px}
  .pdp{padding-top:28px}
  .pdp h1{font-size:26px}
  .hero-facts,.kpis,.cards,.cards.three,.contact-grid{grid-template-columns:1fr}
  .pdp-figure{flex-direction:column;gap:14px;padding:14px}
  .pdp-figure img{width:100%;max-width:340px}
  .fact-list{grid-template-columns:1fr;gap:2px}
  .fact-list dt{margin-top:10px;font-size:12px}
  .fact-list dd{font-size:14px}
  .kv-table th[scope=row]{width:120px;padding:10px 12px}
  .kv-table td,.kv-table thead th,.kv-table caption{padding-left:12px;padding-right:12px}
  .site-footer{padding:32px 20px}
  .card dl{grid-template-columns:auto 1fr;gap:2px 10px}
  .subsection{padding:20px 16px}
  .cta h2{font-size:26px}
}