*,
*::before,
*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#f5f7fb;
  --paper:#ffffff;
  --ink:#0f172a;
  --muted:rgba(15,23,42,.72);
  --muted2:rgba(15,23,42,.58);
  --line:rgba(15,23,42,.10);
  --brand:#22c55e;
  --brand2:#0ea5e9;
  --accent:#f97316;
  --shadow:0 14px 44px rgba(15,23,42,.10);
  --r:18px;
}

html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.8;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 16px}

/* Header */
.header{
  position:sticky;top:0;z-index:20;
  background:rgba(245,247,251,.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:12px 0;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:900;letter-spacing:.3px;
}
.brand__mark{
  width:40px;height:40px;border-radius:14px;
  background:linear-gradient(135deg,var(--brand),var(--brand2));
  color:#022c22;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 18px 54px rgba(34,197,94,.22);
  position:relative;
}
.brand__mark::after{
  content:"";
  position:absolute;inset:-7px;border-radius:18px;
  background:radial-gradient(circle at 25% 25%, rgba(248,250,252,.7), rgba(248,250,252,0) 60%);
  z-index:-1;
}
.brand__name{display:flex;flex-direction:column;line-height:1.05}
.brand__name strong{font-size:15px}
.brand__name small{font-size:12px;color:var(--muted2);font-weight:900}

.nav{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.nav a{
  font-size:14px;font-weight:900;
  padding:8px 10px;border-radius:999px;border:1px solid transparent;
  color:rgba(15,23,42,.85);
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.nav a:hover{background:rgba(14,165,233,.10);border-color:rgba(14,165,233,.18)}
.nav a.active{background:rgba(34,197,94,.18);border-color:rgba(34,197,94,.26);color:#064e3b}

.cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 14px;border-radius:999px;
  background:#0f172a;color:rgba(248,250,252,.98);
  font-size:13px;font-weight:900;
  box-shadow:0 16px 40px rgba(15,23,42,.18);
}
.cta:hover{transform:translateY(-1px)}

/* Hero */
.hero{
  background:
    radial-gradient(900px 420px at 15% 0%, rgba(34,197,94,.22), rgba(34,197,94,0)),
    radial-gradient(900px 420px at 85% 0%, rgba(14,165,233,.20), rgba(14,165,233,0)),
    linear-gradient(180deg,#f9fafb,#f5f7fb);
  padding:40px 0 20px;
}
.hero h1{font-size:34px;line-height:1.18;margin:10px 0 10px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:999px;
  font-size:12px;font-weight:900;letter-spacing:1px;text-transform:uppercase;
  background:rgba(255,255,255,.9);
  border:1px solid var(--line);
}
.kicker i{width:10px;height:10px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--accent));display:inline-flex}
.hero p{font-size:14px;color:var(--muted);max-width:880px}
.hero__grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:14px;margin-top:16px;align-items:stretch;
}
.hero__actions{margin-top:14px;display:flex;gap:10px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 16px;border-radius:999px;
  border:1px solid transparent;
  font-size:14px;font-weight:900;
  transition:transform .18s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn--solid{
  background:linear-gradient(135deg,var(--brand),var(--brand2));
  color:#022c22;
  box-shadow:0 16px 40px rgba(34,197,94,.22);
}
.btn--solid:hover{transform:translateY(-1px);filter:saturate(1.05)}
.btn--ghost{
  background:#ffffff;border-color:var(--line);color:rgba(15,23,42,.9);
}
.btn--ghost:hover{transform:translateY(-1px);border-color:rgba(15,23,42,.22)}

.heroCard{
  background:rgba(255,255,255,.9);
  border:1px solid var(--line);
  border-radius:calc(var(--r)+10px);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.heroCard img{height:220px;width:100%;object-fit:cover}
.heroCard__pad{padding:14px}
.heroCard__pad strong{display:block;font-size:14px}
.heroCard__pad span{display:block;font-size:12px;color:var(--muted2);margin-top:2px}

.kpis{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:10px;
  margin-top:14px;
}
.kpi{
  background:#ffffff;border-radius:calc(var(--r)+6px);
  border:1px solid var(--line);
  box-shadow:0 12px 28px rgba(15,23,42,.06);
  padding:12px;
}
.kpi b{display:block;font-size:18px}
.kpi span{display:block;font-size:12px;color:var(--muted2);margin-top:2px;font-weight:900}

/* Sections */
.section{padding:30px 0}
.card{
  background:#ffffff;border-radius:calc(var(--r)+8px);
  border:1px solid var(--line);
  box-shadow:0 12px 28px rgba(15,23,42,.06);
  padding:16px;
}
.head{
  display:flex;align-items:baseline;justify-content:space-between;
  gap:12px;flex-wrap:wrap;margin-bottom:12px;
}
.head h2{font-size:22px}
.head p{font-size:14px;color:var(--muted);max-width:760px}

.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}

.pill{
  padding:12px;border-radius:18px;
  background:linear-gradient(135deg,rgba(34,197,94,.10),rgba(14,165,233,.10));
  border:1px solid var(--line);
}
.pill strong{display:block;font-size:14px;margin-bottom:4px}
.pill span{display:block;font-size:13px;color:var(--muted)}

.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 10px;border-radius:999px;
  background:rgba(34,197,94,.16);
  border:1px solid rgba(34,197,94,.26);
  color:#064e3b;font-weight:900;
  font-size:12px;
}
.chip i{width:8px;height:8px;border-radius:999px;background:linear-gradient(135deg,var(--brand2),var(--accent));display:inline-flex}

/* FAQ */
.faq{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.faq details{
  background:#ffffff;border-radius:calc(var(--r)+6px);
  border:1px solid var(--line);
  box-shadow:0 10px 24px rgba(15,23,42,.06);
  padding:12px 14px;
}
.faq summary{cursor:pointer;font-weight:900;color:rgba(15,23,42,.9)}
.faq summary::-webkit-details-marker{display:none}
.faq p{margin-top:8px;font-size:14px;color:var(--muted)}

/* Footer */
.footer{
  margin-top:22px;
  background:#0b1020;
  color:rgba(248,250,252,.9);
  border-top:1px solid rgba(148,163,184,.4);
}
.footer__grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,.8fr) minmax(0,.8fr);
  gap:12px;
  padding:22px 0 16px;
}
.footer h4{font-size:14px;margin-bottom:8px;color:rgba(248,250,252,.96)}
.footer a{display:block;font-size:13px;padding:4px 0;color:rgba(209,213,219,.9)}
.footer a:hover{color:#ffffff;text-decoration:underline}
.footer p{font-size:13px;color:rgba(209,213,219,.86)}
.footer__bottom{
  border-top:1px solid rgba(148,163,184,.4);
  padding:10px 0 14px;
  font-size:12px;
  color:rgba(148,163,184,.9);
}

@media (max-width: 980px){
  .hero__grid{grid-template-columns:1fr}
  .kpis{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid2{grid-template-columns:1fr}
  .faq{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .cta{display:none}
}
@media (max-width: 640px){
  .hero h1{font-size:28px}
  .kpis{grid-template-columns:1fr}
}