:root{
  --foam:#eef3f7;
  --film:#d7e4ee;
  --ink:#1c2430;
  --mute:#5a6774;
  --tape:#c9a15a;
  --safe:#2d8a5a;
  --box:#f7f4ee;
  --line:#c5d0da;
  --max:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--foam)}
body{
  font-family:"Segoe UI","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--foam);line-height:1.65;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
ul{list-style:none}
button{font-family:inherit}
.container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
.tape{height:14px;background:repeating-linear-gradient(90deg,var(--tape) 0 18px,#e8d4a0 18px 22px,var(--tape) 22px 40px)}
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line)}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:58px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.12em;font-size:12px;color:var(--safe)}
.brand-mark{
  width:28px;height:28px;border-radius:50%;border:2px solid var(--safe);
  display:grid;place-items:center;font-size:11px;background:#e8f6ee;
}
.nav{display:flex;gap:16px;flex-wrap:wrap;font-size:14px;color:var(--mute)}
.nav a[aria-current="page"]{color:var(--safe);border-bottom:2px solid var(--safe)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:0 16px;border:2px dashed var(--ink);
  background:#fff;color:var(--ink);font-size:13px;font-weight:800;cursor:pointer;
}
.btn-fill{background:var(--safe);border-style:solid;border-color:var(--safe);color:#fff}
.kicker{display:block;font-size:11px;letter-spacing:.18em;color:var(--safe);font-weight:800;margin-bottom:8px}
.section-head{margin-bottom:20px}
.section-head h2{font-size:clamp(22px,3vw,32px);line-height:1.25;margin-bottom:8px}
.section-head p{color:var(--mute);max-width:640px}
.footer{padding:44px 0 20px;background:#1c2430;color:#d8e0e8}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr;gap:24px}
.footer h3,.footer h4{margin-bottom:12px;color:#fff;font-size:16px}
.footer p,.footer a,.footer li{color:#a8b4c0;font-size:14px}
.footer ul{display:grid;gap:8px}
.copyright{margin-top:24px;padding-top:14px;border-top:1px solid #334050;font-size:12px}
img[data-src]{min-height:120px;background:var(--film)}
.below-fold{content-visibility:auto;contain-intrinsic-size:auto 480px}
@media(max-width:720px){.nav{display:none}.footer-grid{grid-template-columns:1fr}}