:root{--steel:#1E3A5F;--silver:#E5E7EB;--line:#CBD5E1;--ink:#0F172A}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Franklin Gothic Medium","Segoe UI","Microsoft YaHei",sans-serif;background:#fff;color:var(--ink);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none}
svg{display:block}
.wrap{width:min(1100px,calc(100% - 32px));margin:0 auto}
header{background:var(--steel);color:#fff}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;border-bottom:1px solid #2A4A73}
.brand{display:flex;align-items:center;gap:8px;font-weight:700}
nav{display:flex;flex-wrap:wrap;gap:0}
nav a{color:#E5E7EB;font-size:13px;padding:8px 12px;border-left:1px solid #2A4A73}
nav a:hover{background:#2A4A73;color:#fff}
.hero{padding:32px 0 18px;border-bottom:1px solid var(--line)}
.hero h1{font-size:28px;line-height:1.3;margin-bottom:12px;max-width:18em}
.hero p{max-width:46em;margin-bottom:8px;color:#334155}
.dual{display:grid;grid-template-columns:1fr 1px 1fr;gap:0;border:1px solid var(--line);background:#fff}
.dual .pane{padding:22px 20px;background:#F8FAFC}
.dual .rule{background:var(--steel);width:1px}
.dual h2{font-size:20px;line-height:1.35;margin-bottom:12px;color:var(--steel)}
.dual h3{font-size:16px;margin:12px 0 6px}
.dual p{color:#334155;margin-bottom:8px;font-size:15px}
.sec{padding:28px 0;border-top:1px solid var(--line)}
.sec h2{font-size:22px;margin-bottom:12px;color:var(--steel)}
.lead{margin-bottom:14px;color:#334155;max-width:46em}
table{width:100%;border-collapse:collapse}
th,td{border:1px solid var(--line);padding:11px 12px;text-align:left;vertical-align:top;font-size:14px}
th{background:var(--steel);color:#fff}
.rsteps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line)}
.rstep{padding:16px;border-right:1px solid var(--line);background:#F8FAFC}
.rstep:last-child{border-right:0}
.rstep .n{font-size:13px;color:var(--steel);letter-spacing:.08em;margin-bottom:8px}
.rstep h3{font-size:16px;margin-bottom:8px}
.rstep p{font-size:14px;color:#334155}
.hang{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line)}
.hang article{padding:16px 18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.hang svg{margin-bottom:8px}
.hang article:nth-child(2n){border-right:0}
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line)}
.flow article{padding:16px;border-right:1px solid var(--line);background:var(--silver)}
.flow article:last-child{border-right:0}
.w-faq{background:var(--silver);border:1px solid var(--line);margin:8px 0}
.w-faq summary{padding:12px 14px;cursor:pointer;font-weight:700}
.faq-body{padding:0 14px 12px;background:#fff}
footer{background:var(--steel);color:#E5E7EB;padding:22px 0;margin-top:0}
.ft p{margin-bottom:8px;font-size:14px}
@media (max-width:900px){
.dual,.rsteps,.hang,.flow{grid-template-columns:1fr}
.dual .rule{display:none}
.bar{flex-direction:column;align-items:flex-start}
nav a{border-left:0;border-top:1px solid #2A4A73}
}