:root{--blue:#0f4c81;--blue2:#1b6ca8;--ink:#1f2733;--gray:#5b6b7b;--bg:#f5f8fb;--line:#e2e9f0;}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
a{color:var(--blue2);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
header.site{background:var(--blue);color:#fff;position:sticky;top:0;z-index:10}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;flex-wrap:wrap}
.brand{font-weight:700;font-size:20px;color:#fff}
.brand small{display:block;font-weight:400;font-size:11px;opacity:.8;letter-spacing:.5px}
nav.site a{color:#dce8f3;margin-left:18px;font-size:15px}
nav.site a:hover,nav.site a.active{color:#fff}
.hero{background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;padding:70px 0}
.hero h1{font-size:40px;line-height:1.2;margin-bottom:14px}
.hero p{font-size:18px;max-width:720px;opacity:.95}
.hero .cta{display:inline-block;margin-top:24px;background:#fff;color:var(--blue);padding:12px 26px;border-radius:6px;font-weight:600}
.btn{display:inline-block;background:var(--blue);color:#fff;padding:11px 24px;border-radius:6px;font-weight:600;margin-top:18px}
.btn:hover{background:var(--blue2);text-decoration:none}
section{padding:54px 0}
h2{font-size:28px;margin-bottom:10px;color:var(--blue)}
h3{font-size:20px;margin:18px 0 8px;color:var(--ink)}
.lead{color:var(--gray);max-width:780px;margin-bottom:26px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px}
.card h3{margin-top:0}
.tag{display:inline-block;background:#e8f1f9;color:var(--blue);font-size:12px;padding:3px 10px;border-radius:20px;margin:4px 4px 0 0}
.strip{background:var(--blue);color:#fff;padding:26px 0;text-align:center}
.strip .wrap{display:flex;flex-wrap:wrap;justify-content:space-around;gap:14px}
.strip div{font-size:15px}
.strip b{display:block;font-size:26px}
.imgph{background:#dde7f0;border:1px dashed #b9c9d8;border-radius:8px;min-height:180px;display:flex;align-items:center;justify-content:center;color:#7c93a8;font-size:14px;text-align:center;padding:10px}
ul.clean{list-style:none}
ul.clean li{padding:6px 0;border-bottom:1px solid var(--line)}
.faq{background:#fff;border:1px solid var(--line);border-radius:10px;padding:0 22px;margin-bottom:12px}
.faq h3{margin:18px 0 6px}
.faq p{color:var(--gray);padding-bottom:16px}
table.spec{width:100%;border-collapse:collapse;background:#fff;margin-top:10px}
table.spec th,table.spec td{border:1px solid var(--line);padding:10px 12px;text-align:left}
table.spec th{background:#eef4f9}
footer.site{background:#16263a;color:#aebbc8;padding:36px 0;font-size:14px}
footer.site a{color:#cfe0ee}
.two{display:grid;grid-template-columns:1.2fr 1fr;gap:30px;align-items:start}
@media(max-width:760px){.two{grid-template-columns:1fr}.hero h1{font-size:30px}nav.site a{margin-left:10px;font-size:13px}}
.meta{color:var(--gray);font-size:14px}