:root{
  --ink:#1b2430;
  --ink-2:#3b4a5a;
  --muted:#6b7a8c;
  --line:#e2e8ef;
  --paper:#fbfaf7;
  --card:#ffffff;
  --green:#0f6b52;
  --green-2:#128866;
  --amber:#c9822b;
  --amber-2:#e8a34a;
  --shadow:0 18px 46px rgba(23,42,58,.10);
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--green);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.wrap{max-width:1150px;margin:0 auto;padding:0 22px}

/* ---------- 顶部 ---------- */
header.site{
  position:sticky;top:0;z-index:50;backdrop-filter:blur(10px);
  background:rgba(251,250,247,.86);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:22px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;letter-spacing:.2px}
.brand .mark{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--green),#0a4e3c);color:#fff;font-weight:800;font-size:15px;
  box-shadow:0 6px 16px rgba(15,107,82,.28);
}
.nav .links{display:flex;gap:20px;margin-left:auto;align-items:center}
.nav .links a{color:var(--ink-2);font-size:14.5px}
.nav .links a:hover{color:var(--green);text-decoration:none}
.nav .cta{
  background:var(--green);color:#fff;padding:9px 16px;border-radius:10px;font-size:14px;font-weight:600;
  box-shadow:0 8px 20px rgba(15,107,82,.22)
}
.nav .cta:hover{text-decoration:none;filter:brightness(1.05)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:9px;padding:7px 10px;font-size:16px;cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:74px 0 58px}
.hero:before{
  content:"";position:absolute;inset:-20% -10% auto -10%;height:620px;
  background:radial-gradient(620px 320px at 18% 10%,rgba(18,136,102,.13),transparent 62%),
             radial-gradient(520px 280px at 88% 0%,rgba(232,163,74,.16),transparent 60%);
  pointer-events:none;
}
.hero .inner{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:46px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--green);
  background:#eaf6f1;border:1px solid #cfe9df;border-radius:999px;padding:5px 12px;font-weight:600
}
.hero h1{font-size:44px;line-height:1.22;margin:16px 0 14px;letter-spacing:-.5px}
.hero h1 em{font-style:normal;color:var(--green);background:linear-gradient(transparent 62%,rgba(232,163,74,.34) 62%)}
.hero p.lead{font-size:16.5px;color:var(--ink-2);margin:0 0 24px;max-width:560px}
.hero .acts{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;border-radius:11px;padding:11px 22px;font-size:15px;font-weight:600}
.btn-main{background:var(--green);color:#fff;box-shadow:0 12px 26px rgba(15,107,82,.22)}
.btn-main:hover{text-decoration:none;filter:brightness(1.05)}
.btn-ghost{border:1px solid var(--line);background:#fff;color:var(--ink)}
.btn-ghost:hover{text-decoration:none;border-color:#c7d5e2}
.hero .meta{margin-top:22px;display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.hero .meta b{color:var(--ink);font-size:15px;display:block}

/* 面板模拟 */
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);
  overflow:hidden;transform:rotate(.4deg)
}
.panel .bar{display:flex;align-items:center;gap:7px;padding:11px 14px;border-bottom:1px solid var(--line);background:#f7f9fb}
.panel .bar i{width:9px;height:9px;border-radius:50%;background:#dbe3ec}
.panel .bar i:nth-child(1){background:#f0b8a8}
.panel .bar i:nth-child(2){background:#f2d79b}
.panel .bar i:nth-child(3){background:#b9ddc9}
.panel .bar span{margin-left:8px;font-size:11.5px;color:var(--muted)}
.panel .body{display:grid;grid-template-columns:88px 1fr;min-height:270px}
.panel .side{border-right:1px solid var(--line);padding:12px 8px;display:flex;flex-direction:column;gap:8px}
.panel .side b{display:block;height:9px;border-radius:5px;background:#eef2f6}
.panel .side b.on{background:#d8ede4}
.panel .main{padding:14px}
.panel .row{display:flex;align-items:center;gap:10px;padding:9px 10px;border:1px solid var(--line);border-radius:10px;margin-bottom:9px}
.panel .dot{width:8px;height:8px;border-radius:50%;background:var(--green-2)}
.panel .row .t{font-size:12px;color:var(--ink)}
.panel .row .s{font-size:11px;color:var(--muted);margin-left:auto}
.panel .chip{font-size:10.5px;padding:2px 8px;border-radius:999px;background:#eaf6f1;color:var(--green);border:1px solid #cfe9df}
.panel .chip.amber{background:#fdf3e4;color:#9a6317;border-color:#f2ddbb}

/* ---------- 通用 section ---------- */
section{padding:66px 0}
section.alt{background:#f5f8f7;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.kicker{font-size:12.5px;letter-spacing:1.5px;text-transform:uppercase;color:var(--amber);font-weight:700}
h2.title{font-size:30px;margin:10px 0 8px;letter-spacing:-.3px}
p.sub{color:var(--muted);margin:0 0 32px;max-width:720px}

.grid{display:grid;gap:18px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 20px;
  box-shadow:0 10px 26px rgba(23,42,58,.05);transition:.18s
}
.card:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(23,42,58,.09)}
.card .ico{font-size:22px;margin-bottom:10px}
.card h3{font-size:17px;margin:0 0 8px}
.card p{font-size:14px;color:var(--ink-2);margin:0}
.card ul{margin:10px 0 0;padding-left:18px}
.card li{font-size:13.5px;color:var(--ink-2);line-height:1.9}

.split{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.note{
  border-left:3px solid var(--amber-2);background:#fdf8ef;border-radius:0 12px 12px 0;
  padding:14px 18px;font-size:13.8px;color:#6b4b1c
}
.note b{color:#8a5a12}

table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
th,td{padding:12px 14px;text-align:left;font-size:13.8px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#f4f7f9;font-size:13px;color:var(--ink-2);font-weight:700}
tr:last-child td{border-bottom:0}
td code,p code,li code{background:#eef3f7;border-radius:5px;padding:1px 6px;font-size:12.5px;color:#2c4a5e}

.steps{counter-reset:s;display:grid;gap:14px}
.steps .s{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px 16px 62px;position:relative}
.steps .s:before{
  counter-increment:s;content:counter(s);position:absolute;left:18px;top:18px;width:28px;height:28px;border-radius:9px;
  background:#eaf6f1;color:var(--green);display:grid;place-items:center;font-weight:800;font-size:13px
}
.steps .s h4{margin:0 0 6px;font-size:15.5px}
.steps .s p{margin:0;font-size:13.8px;color:var(--ink-2)}

.cta-band{
  background:linear-gradient(135deg,#0f6b52,#0a4e3c);color:#fff;border-radius:22px;
  padding:38px 34px;display:flex;align-items:center;gap:26px;flex-wrap:wrap;justify-content:space-between;
  box-shadow:0 20px 50px rgba(10,78,60,.24)
}
.cta-band h3{margin:0 0 6px;font-size:23px}
.cta-band p{margin:0;color:rgba(255,255,255,.82);font-size:14px}
.cta-band .btn-main{background:#fff;color:#0f6b52;box-shadow:none}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}

/* ---------- 侧边目录（文档页） ---------- */
.doc{display:grid;grid-template-columns:236px 1fr;gap:34px;padding:44px 0 70px}
.toc{position:sticky;top:86px;align-self:start;border-right:1px solid var(--line);padding-right:18px}
.toc b{display:block;font-size:12.5px;color:var(--muted);letter-spacing:1px;margin:16px 0 8px}
.toc a{display:block;font-size:13.6px;color:var(--ink-2);padding:5px 8px;border-radius:8px}
.toc a:hover{background:#eef6f2;color:var(--green);text-decoration:none}
.doc main h2{font-size:26px;margin:38px 0 12px;padding-top:8px}
.doc main h3{font-size:18px;margin:26px 0 8px}
.doc main p{font-size:14.6px;color:var(--ink-2)}
.doc main ul{font-size:14.4px;color:var(--ink-2);line-height:2}
.doc main .card{margin:16px 0}
.pill{display:inline-block;font-size:12px;background:#eef6f2;color:var(--green);border:1px solid #cfe9df;border-radius:999px;padding:2px 10px;margin-right:6px}

footer.site{border-top:1px solid var(--line);padding:34px 0 46px;color:var(--muted);font-size:13px}
footer.site .frow{display:flex;gap:20px;flex-wrap:wrap;justify-content:space-between;align-items:center}
footer.site a{color:var(--ink-2)}

@media(max-width:980px){
  .hero .inner{grid-template-columns:1fr;gap:30px}
  .hero h1{font-size:34px}
  .g3{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr}
  .doc{grid-template-columns:1fr;padding-top:26px}
  .toc{position:static;border-right:0;border-bottom:1px solid var(--line);padding:0 0 14px}
  .toc a{display:inline-block;margin:2px 4px 2px 0}
}
@media(max-width:640px){
  .nav .links{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:10px 18px 16px}
  .nav .links.open{display:flex}
  .nav .links a{padding:10px 0;border-bottom:1px dashed var(--line);font-size:15px}
  .nav-toggle{display:block}
  .g3,.g2{grid-template-columns:1fr}
  .hero{padding:44px 0 40px}
  .hero h1{font-size:28px}
  section{padding:46px 0}
  h2.title{font-size:23px}
  .panel{transform:none}
  .panel .body{grid-template-columns:64px 1fr}
  .cta-band{padding:26px 20px}
}