*,*::before,*::after{box-sizing:border-box}
:root{--green:#01875f;--ink:#202124;--muted:#5f6368;--line:#e8eaed;--soft:#f8f9fa}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font:15px/1.6 Roboto,"Google Sans","Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
a{color:inherit;text-decoration:none}
.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 24px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line)}
.site-header .nav{height:64px;display:flex;align-items:center;gap:16px}
.brand.logo{display:flex;align-items:center;gap:9px;font-size:18px;font-weight:650}
.logo-text i{font-style:normal;color:var(--muted);font-weight:500}
.nav-links{display:flex;align-items:center;gap:3px;margin:0;padding:0;list-style:none}
.nav-links a{display:block;padding:8px 11px;border-radius:99px;font-size:14px;color:#3c4043}
.nav-links a:hover,.nav-links a.active{background:var(--soft)}
.nav-cta{margin-left:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;height:38px;padding:0 20px;border:0;border-radius:8px;font:inherit;font-weight:650;cursor:pointer}
.btn-primary{background:var(--green);color:#fff}
.btn-secondary,.btn-ghost{border:1px solid #c5e7d6;color:var(--green);background:#fff}
.btn-sm{height:36px;padding:0 16px;font-size:13px}
.page-main{padding:40px 0 72px}
.page-hero{margin-bottom:24px}
.page-hero h1,.article-detail h1{font-size:clamp(24px,3vw,34px);line-height:1.3;margin:8px 0 10px;font-weight:600}
.page-sub,.crumb,.meta,time{color:var(--muted);font-size:13px}
.article-list-page{display:grid;gap:12px}
.article-list-item{display:block;padding:18px 20px;border:1px solid var(--line);border-radius:14px;background:#fff}
.article-list-item:hover{border-color:#b7ddca;box-shadow:0 8px 22px rgba(32,33,36,.06)}
.article-list-item h2{font-size:18px;margin:7px 0 5px}
.article-list-item .sum{color:var(--muted);font-size:14px}
.article-detail{max-width:820px;margin:0 auto}
.article-detail .summary{margin:18px 0 24px;padding:14px 16px;background:var(--soft);border:1px solid var(--line);border-radius:12px}
.article-body{font-size:16px;line-height:1.8}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:32px}
.article-nav a{display:block;padding:14px 16px;border:1px solid var(--line);border-radius:12px}
.article-nav .label{display:block;color:var(--muted);font-size:12px}
.article-nav strong{display:block;margin-top:4px;font-size:14px}
.pager{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:28px}
.pager a{padding:8px 14px;border:1px solid var(--line);border-radius:8px}
.site-footer{margin-top:20px;padding:38px 0 26px;border-top:1px solid var(--line);background:var(--soft)}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;margin-bottom:22px}
.foot-cols{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.foot-col h5{margin:0 0 10px;font-size:13px}
.foot-col ul{margin:0;padding:0;list-style:none}
.foot-col a,.foot-brand p{display:block;padding:3px 0;color:var(--muted);font-size:13px}
.foot-bottom{display:flex;justify-content:space-between;gap:12px;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
@media(max-width:900px){.nav-links{display:none}.foot-top,.foot-cols{grid-template-columns:1fr}.article-nav{grid-template-columns:1fr}}