:root{
  --ink:#0f172a; --slate:#475467; --muted:#667085; --line:#e4e7ec;
  --paper:#fff; --bg:#f8fafc; --accent:#b45309; --accent-soft:#fdf3e7;
  --radius:14px; --shadow:0 1px 2px rgba(16,24,40,.06),0 8px 24px rgba(16,24,40,.06);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;
  color:var(--ink); background:var(--paper); line-height:1.75; font-size:16px;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

/* ---------- 顶栏 ---------- */
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.5px}
.logo .mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,#1f2937,#0f172a);
  display:grid;place-items:center;color:#f8fafc;font-size:15px;font-weight:800}
.nav-links{display:flex;gap:24px;margin-left:auto;font-size:15px;color:var(--slate)}
.nav-links a:hover{color:var(--accent)}
.nav-cta{padding:8px 16px;border-radius:10px;background:var(--ink);color:#fff;font-size:14px}
.nav-cta:hover{background:#1f2937}

/* ---------- 通用 ---------- */
section{padding:72px 0}
.eyebrow{color:var(--accent);font-weight:700;font-size:13px;letter-spacing:1.6px;text-transform:uppercase}
h1{font-size:44px;line-height:1.22;letter-spacing:-.5px;margin:14px 0 18px;font-weight:800}
h2{font-size:30px;line-height:1.3;margin:10px 0 14px;font-weight:800;letter-spacing:-.3px}
h3{font-size:17px;font-weight:700;margin-bottom:8px}
p.lead{font-size:18px;color:var(--slate);max-width:640px}
.muted{color:var(--muted)}
.btn{display:inline-block;padding:12px 22px;border-radius:11px;font-weight:600;font-size:15px;
  border:1px solid transparent;transition:.15s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#9a4708}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:#cbd5e1;background:var(--bg)}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.todo{display:inline-block;padding:1px 8px;border-radius:6px;background:var(--accent-soft);
  color:var(--accent);font-size:13px;font-weight:600;border:1px dashed #f0c99a}

/* ---------- 首页 hero ---------- */
.hero{padding:88px 0 72px;background:
  radial-gradient(900px 380px at 82% -10%,#f1f5f9 0%,rgba(255,255,255,0) 60%),var(--paper)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-card{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow)}
.hero-card h3{font-size:15px;color:var(--muted);font-weight:600;margin-bottom:14px}
.kv{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px}
.kv:last-child{border-bottom:0}
.kv b{font-weight:700}

/* ---------- 卡片 ---------- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.card:hover{box-shadow:var(--shadow)}
.card .ico{width:40px;height:40px;border-radius:11px;background:var(--accent-soft);color:var(--accent);
  display:grid;place-items:center;font-size:19px;margin-bottom:16px}
.card p{color:var(--slate);font-size:15px}

/* ---------- 分块 ---------- */
.band{background:var(--bg);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
ul.ticks{list-style:none;margin-top:16px}
ul.ticks li{padding:9px 0 9px 26px;position:relative;color:var(--slate);font-size:15px}
ul.ticks li::before{content:"";position:absolute;left:0;top:16px;width:8px;height:8px;border-radius:2px;
  background:var(--accent);opacity:.85}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact-row{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.contact-row .lab{width:76px;color:var(--muted);font-size:14px;flex:none}
.contact-row .val{font-size:15px}

/* ---------- 页脚 ---------- */
footer.site{border-top:1px solid var(--line);padding:44px 0 34px;background:var(--paper)}
.foot-top{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:flex-start}
.foot-links{display:flex;gap:22px;font-size:14px;color:var(--slate);flex-wrap:wrap}
.foot-links a:hover{color:var(--accent)}
.foot-bottom{margin-top:28px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted)}

@media(max-width:900px){
  .hero-grid,.two-col,.contact-grid{grid-template-columns:1fr;gap:34px}
  .grid3{grid-template-columns:1fr}
  h1{font-size:32px} h2{font-size:24px} section{padding:52px 0}
  .nav-links{display:none}
}