:root{--ink:#17202a;--muted:#5b6674;--line:#dfe5ec;--blue:#145c9e;--blue2:#0d3f70;--bg:#f5f8fb;--white:#fff;--accent:#e8f2fb}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--white);line-height:1.75}
a{color:var(--blue);text-decoration:none}
img{max-width:100%}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
.top{background:var(--blue2);color:#fff;font-size:14px}
.top .wrap{display:flex;justify-content:space-between;gap:16px;padding-top:9px;padding-bottom:9px;flex-wrap:wrap}
.top a{color:#fff}
.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px}
.brand{font-weight:800;font-size:20px;color:var(--ink);letter-spacing:.2px}
.brand span{color:var(--blue)}
.links{display:flex;gap:20px;flex-wrap:wrap;font-size:15px}
.links a{color:var(--muted)}
.links a:hover{color:var(--blue)}
.hero{background:linear-gradient(135deg,#0d3f70 0%,#145c9e 58%,#2d7fbd 100%);color:#fff;padding:74px 0 64px}
.hero .eyebrow{font-size:14px;letter-spacing:1.5px;text-transform:uppercase;opacity:.8;margin-bottom:14px}
.hero h1{font-size:42px;line-height:1.25;margin:0 0 18px;max-width:820px}
.hero p{font-size:18px;max-width:820px;margin:0 0 26px;color:rgba(255,255,255,.88)}
.actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 22px;border-radius:6px;font-weight:700;font-size:16px}
.btn-primary{background:#fff;color:var(--blue2)}
.btn-ghost{border:1px solid rgba(255,255,255,.6);color:#fff}
.section{padding:66px 0}
.section.alt{background:var(--bg)}
.section h2{font-size:30px;margin:0 0 12px}
.section .sub{color:var(--muted);margin:0 0 28px;max-width:820px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:22px}
.card h3{font-size:18px;margin:0 0 8px}
.card p{margin:0;color:var(--muted);font-size:15px}
.list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 22px;padding:0;margin:0;list-style:none}
.list li{padding-left:22px;position:relative;color:#344252}
.list li:before{content:"";position:absolute;left:0;top:.65em;width:8px;height:8px;border-radius:50%;background:var(--blue)}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;counter-reset:step}
.step{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px 16px;position:relative}
.step:before{counter-increment:step;content:counter(step);display:inline-flex;width:28px;height:28px;border-radius:50%;background:var(--accent);color:var(--blue);align-items:center;justify-content:center;font-weight:800;margin-bottom:8px}
.step b{display:block;font-size:15px}
.step span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.case{background:#fff;border-left:4px solid var(--blue);padding:18px 20px;margin-bottom:12px;border-radius:0 8px 8px 0;border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.case b{display:block;margin-bottom:5px}
.case p{margin:0;color:var(--muted);font-size:15px}
.faq{display:grid;gap:12px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px 18px}
.faq summary{cursor:pointer;font-weight:700}
.faq p{margin:10px 0 0;color:var(--muted)}
.cta{background:var(--blue2);color:#fff;padding:56px 0}
.cta h2{margin:0 0 10px;font-size:30px}
.cta p{margin:0 0 22px;color:rgba(255,255,255,.85)}
.contact{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}
.contact div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:8px;padding:16px}
.contact small{display:block;opacity:.7;margin-bottom:4px}
.contact b{font-size:17px}
footer{background:#0b1d30;color:#a9b7c6;font-size:13px;padding:28px 0}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media(max-width:900px){.grid{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr}.contact{grid-template-columns:1fr}.hero h1{font-size:34px}}
@media(max-width:620px){.grid{grid-template-columns:1fr}.list{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.nav .wrap{align-items:flex-start;padding-top:12px;padding-bottom:12px}.links{gap:12px;font-size:14px}.hero{padding:48px 0 42px}.hero h1{font-size:29px}.hero p{font-size:16px}.section{padding:48px 0}}