:root{--ink:#10251F;--muted:#5B6E67;--paper:#FBFDFC;--brand:#0B7A63;--brand-deep:#075A49;--brand-soft:#E7F4EF;--line:#DDE7E2;--radius:14px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--paper);color:var(--ink);line-height:1.75;font-size:16px}
.wrap{max-width:900px;margin:0 auto;padding:0 24px}
header.site{position:sticky;top:0;z-index:50;background:rgba(251,253,252,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--brand-deep);text-decoration:none}
.logo img{border-radius:999px;object-fit:cover;flex:none}
.nav-links{display:flex;gap:22px;list-style:none;flex-wrap:wrap}
.nav-links a{color:var(--ink);text-decoration:none;font-size:15px;font-weight:500}
.nav-links a:hover{color:var(--brand)}
.nav-cta{background:var(--brand);color:#fff;border:none;border-radius:999px;padding:9px 18px;font-size:14px;font-weight:600;cursor:pointer;flex:none}
.page-hero{background:var(--brand-deep);color:#fff;padding:48px 0}
.page-hero h1{font-size:clamp(26px,3.6vw,36px);font-weight:800}
.crumbs{font-size:13px;opacity:.8;margin-bottom:12px}
.crumbs a{color:#fff;opacity:.85}
article{padding:44px 0 56px}
article h2{font-size:19px;font-weight:800;margin:30px 0 12px;color:var(--brand-deep)}
article p{margin-bottom:12px;color:#3D4F48}
article ul{margin:0 0 14px 22px;color:#3D4F48}
article li{margin-bottom:6px}
.meta-line{font-size:13px;color:var(--muted);margin-top:10px}
.note{background:var(--brand-soft);border:1px solid var(--line);border-radius:10px;padding:12px 16px;font-size:14px;color:var(--muted);margin:18px 0}
footer{border-top:1px solid var(--line);padding:40px 0 56px;font-size:14px;color:var(--muted)}
.foot-grid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.foot-grid b{color:var(--ink);font-size:15px}
@media (max-width:860px){.nav-links{position:absolute;top:66px;left:0;right:0;display:none;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:6px 0;box-shadow:0 12px 24px rgba(16,37,31,.08)}
  .nav-links li{list-style:none;width:100%}
  .nav-links a{display:block;padding:13px 24px;font-size:16px;border-top:1px solid var(--line)}
  .nav-links li:first-child a{border-top:none}
  .nav-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:44px;height:44px;cursor:pointer;flex:none}
  .nav-btn span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s,opacity .25s}
  .nav-toggle{position:absolute;opacity:0;width:0;height:0;pointer-events:none}
  .nav-toggle:checked~.nav-btn span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle:checked~.nav-btn span:nth-child(2){opacity:0}
  .nav-toggle:checked~.nav-btn span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-toggle:checked~.nav-links{display:flex}
  .nav-cta{display:none}
  .fab{display:none}.page-hero{padding:40px 0}}

a.skip-link:focus{left:0;width:auto;height:auto;overflow:visible}