:root{--navy:#14213D;--navy2:#1F3260;--gold:#B8893B;--gold-l:#F3E9D2;--paper:#FBF8F2;--ink:#222A3A;--mute:#6B7385;--line:#E4DED0;--red:#B23A3A;--green:#2F7D5B}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",system-ui,sans-serif;background:var(--paper);color:var(--ink);line-height:1.75;font-size:16px}
a{color:var(--navy)}
header.site{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
header.site .in{max-width:980px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px}
header.site .logo{font-weight:800;color:var(--navy);text-decoration:none;display:flex;align-items:center;gap:8px;white-space:nowrap}
header.site .logo i{width:14px;height:14px;border-radius:4px;background:var(--gold);display:inline-block}
header.site nav{display:flex;align-items:center;gap:16px;font-size:14px}
header.site nav a{text-decoration:none;color:var(--mute)}
header.site nav a.cta{background:var(--gold);color:#fff;padding:7px 14px;border-radius:999px;font-weight:700}
footer.site{max-width:860px;margin:30px auto 0;padding:22px 20px 60px;text-align:center;font-size:13px;color:var(--mute);border-top:1px solid var(--line);line-height:1.9}
footer.site a{color:inherit}
main.doc{max-width:860px;margin:0 auto;padding:34px 20px 10px}
main.doc h1{font-size:30px;line-height:1.35;color:var(--navy);margin:6px 0 10px}
main.doc h2{font-size:21px;color:var(--navy);margin:30px 0 8px}
main.doc p{margin-bottom:10px}
.kicker{font-size:12px;letter-spacing:.18em;color:var(--gold);font-weight:700}
.lead{font-size:17px;color:var(--ink);margin-bottom:14px}
.mute{color:var(--mute)}
.cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:18px 0}
.scard{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;text-decoration:none;color:var(--ink);transition:transform .15s}
.scard:hover{transform:translateY(-3px)}
.scard .k{font-size:12px;color:var(--gold);font-weight:700;letter-spacing:.1em}
.scard h3{font-size:18px;color:var(--navy);margin:6px 0 10px;line-height:1.45}
.scard .sc{display:flex;align-items:center;gap:14px;font-size:14px;color:var(--mute)}
.scard .sc b{font-size:30px;color:var(--navy);line-height:1}
.faqd details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px}
.faqd summary{cursor:pointer;font-weight:700;color:var(--navy)}
.faqd details p{margin:10px 0 0}
.buy{background:var(--navy);color:#fff;border-radius:16px;padding:28px;margin:26px 0;text-align:center}
.buy h2{color:#fff;font-size:22px;margin:0 0 8px}
.buy p{color:#C9D2EA;margin-bottom:16px}
.btn{display:inline-block;background:var(--gold);color:#fff;text-decoration:none;font-weight:700;padding:12px 26px;border-radius:999px}
@media (max-width:640px){.cards{grid-template-columns:1fr}header.site nav a:not(.cta){display:none}}