:root{
  --bg:#e7efe8;
  --panel:#d5e4d8;
  --teal:#1f5c52;
  --teal-2:#143c36;
  --rust:#8a4a2a;
  --brass:#b08a3e;
  --ink:#1a2a26;
  --muted:#4a5c56;
  --line:#9bb5a8;
  --max:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--bg)}
body{font-family:"Georgia","Songti SC","Microsoft YaHei",serif;color:var(--ink);background:var(--bg);line-height:1.75}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
ul{list-style:none}
button{font-family:inherit;cursor:pointer}
.container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:80;background:var(--teal-2);color:#dfeee6}
.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:700;letter-spacing:.18em;font-size:11px;color:var(--brass)}
.rivet{
  width:26px;height:26px;border-radius:50%;border:2px solid var(--brass);
  display:grid;place-items:center;color:var(--brass);font-size:12px;background:#1a3a34;
}
.nav{display:flex;gap:16px;flex-wrap:wrap;font-size:14px;color:#c5d8cf}
.nav a[aria-current="page"]{color:var(--brass);border-bottom:2px solid var(--rust)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:42px;padding:0 16px;border:1px solid var(--teal);
  background:transparent;color:var(--teal);font-size:13px;font-weight:700;
}
.btn-fill{background:var(--teal);border-color:var(--teal);color:#eef6f1}
.site-header .btn{border-color:var(--brass);color:var(--brass)}
.site-header .btn-fill{background:var(--rust);border-color:var(--rust);color:#fff4ea}
.kicker{display:block;font-size:11px;letter-spacing:.2em;color:var(--rust);font-weight:700;margin-bottom:8px}
.section-head{margin-bottom:20px}
.section-head h2{font-size:clamp(22px,3vw,34px);line-height:1.25;margin-bottom:8px;color:var(--teal-2)}
.section-head p{color:var(--muted);max-width:640px}
.footer{padding:46px 0 22px;background:var(--teal-2);color:#c9ddd4}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .9fr;gap:24px}
.footer h3,.footer h4{margin-bottom:12px;color:var(--brass);font-size:16px}
.footer p,.footer a,.footer li{color:#b7ccc3;font-size:14px}
.footer ul{display:grid;gap:8px}
.copyright{margin-top:22px;padding-top:14px;border-top:1px solid #2a534c;font-size:12px}
img[data-src]{min-height:88px;background:#c5d6c8}
.below-fold{content-visibility:auto;contain-intrinsic-size:auto 480px}
@media(max-width:720px){.nav{display:none}.footer-grid{grid-template-columns:1fr}}