:root{--ink:#0f1b2d;--ink2:#33415c;--muted:#6b7689;--line:#e6ebf2;--bg:#fff;--alt:#f6f8fb;
--brand:#ff7a33;--brand-d:#e85f16;--blue:#1f6feb;--green:#12b886;--r:16px;
--sh:0 10px 30px rgba(16,32,64,.08);--sh2:0 18px 50px rgba(16,32,64,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 22px}
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:20px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.12rem}
.brand img{width:34px;height:34px;border-radius:50%}
.nav .links{display:flex;gap:20px;margin-left:auto;font-size:.95rem;color:var(--ink2)}
.nav .links a:hover{color:var(--brand-d)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;border-radius:999px;padding:12px 22px;font-size:.98rem;transition:.18s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;box-shadow:0 8px 22px rgba(232,95,22,.28)}
.btn-primary:hover{transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand)}
.btn-sm{padding:9px 16px;font-size:.9rem}
.menu-btn{display:none;margin-left:auto;background:none;border:0;font-size:1.5rem;cursor:pointer;color:var(--ink)}
.hero{padding:66px 0 40px}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.kicker{display:inline-block;font-weight:700;color:var(--brand-d);background:rgba(255,122,51,.1);padding:6px 14px;border-radius:999px;font-size:.85rem;margin-bottom:16px}
.hero h1{font-size:2.7rem;line-height:1.22;margin:.1em 0 .35em;font-weight:900;letter-spacing:-.5px}
.hero .lead{font-size:1.12rem;color:var(--ink2);max-width:34ch}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin:26px 0 14px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.chip{font-size:.85rem;color:var(--ink2);background:var(--alt);border:1px solid var(--line);padding:7px 13px;border-radius:999px}
.hero-card{background:linear-gradient(160deg,#fff,#fbfcfe);border:1px solid var(--line);border-radius:22px;box-shadow:var(--sh2);padding:26px}
.hero-card .row{display:flex;justify-content:space-between;padding:13px 0;border-bottom:1px dashed var(--line);font-size:.95rem}
.hero-card .row:last-child{border:0}
.hero-card .row b{color:var(--brand-d)}
section{padding:60px 0}
section.alt{background:var(--alt)}
.h2{font-size:2rem;font-weight:900;letter-spacing:-.4px;margin:.2em 0 .5em}
.sub{color:var(--muted);max-width:60ch;margin:0 0 28px}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--sh);transition:.18s}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh2)}
.card h3{margin:.2em 0 .4em;font-size:1.15rem}
.card p{margin:0;color:var(--ink2);font-size:.97rem}
.card .tag{display:inline-block;margin-top:12px;font-size:.82rem;color:var(--brand-d);font-weight:700}
.seg .card{position:relative;overflow:hidden}
.seg .card .go{margin-top:14px;font-weight:700;color:var(--brand-d)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;text-align:center;box-shadow:var(--sh)}
.stat .n{font-size:2.1rem;font-weight:900;color:var(--brand-d);letter-spacing:-1px}
.stat .l{font-size:.9rem;color:var(--muted);margin-top:4px}
.note{font-size:.82rem;color:var(--muted);margin-top:14px}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:var(--sh)}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:.96rem}
th{background:#0f1b2d;color:#fff;font-weight:700}
tr:last-child td{border-bottom:0}
td.us{color:var(--brand-d);font-weight:700}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';color:var(--brand-d);font-size:1.3rem}
.faq details[open] summary::after{content:'−'}
.faq p{margin:12px 0 0;color:var(--ink2)}
.cta-band{background:linear-gradient(135deg,#0f1b2d,#22364f);color:#fff;border-radius:24px;padding:44px;text-align:center;box-shadow:var(--sh2)}
.cta-band h2{font-size:1.9rem;margin:.1em 0 .4em;font-weight:900}
.cta-band p{color:#c7d2e2;margin:0 auto 22px;max-width:52ch}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.trustbar{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:20px}
.trustbar .chip{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:#dbe4f0}
footer{background:#0b1526;color:#9fb0c8;padding:52px 0 26px;font-size:.95rem}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px}
footer h4{color:#fff;margin:0 0 14px;font-size:1rem}
footer a{display:block;color:#9fb0c8;margin-bottom:10px}footer a:hover{color:var(--brand)}
footer .fine{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:18px;text-align:center;color:#6f8199;font-size:.85rem}
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;gap:10px;padding:10px 14px;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(0,0,0,.06)}
.sticky-cta .btn{flex:1}
@media(max-width:920px){
 .hero .wrap{grid-template-columns:1fr}.hero h1{font-size:2.1rem}
 .g4,.stats{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:1fr}
 footer .cols{grid-template-columns:1fr 1fr}
 .nav .links{display:none}.menu-btn{display:block}
 .nav.open .links{display:flex;position:absolute;top:66px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 22px;border-bottom:1px solid var(--line);gap:14px}
 .sticky-cta{display:flex}
}
@media(max-width:560px){.g2,.g4,.stats{grid-template-columns:1fr}.cta-band{padding:30px 20px}}