:root{--bg:#fff;--bg2:#f4f7fa;--bdr:rgba(0,0,0,.08);--tx:#1a2530;--mid:#4a6070;--muted:#8099a8;--max:760px;--f:-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif}
.nav-i{max-width:1080px;margin:0 auto;padding:0 36px;height:64px;display:flex;align-items:center;justify-content:space-between}
.page{max-width:var(--max);margin:0 auto;padding:64px 32px 80px}
h1{font-size:2.4rem;font-weight:800;color:var(--tx);letter-spacing:-.025em;line-height:1.1;margin-bottom:10px}
.page-meta{font-size:0.9rem;color:var(--muted);margin-bottom:40px;padding-bottom:20px;border-bottom:1px solid var(--bdr)}
h2{font-size:1.1rem;font-weight:700;color:var(--tx);margin:32px 0 10px;letter-spacing:-.01em}
p{color:var(--mid);margin-bottom:14px;font-size:1rem;line-height:1.75}
ul{color:var(--mid);margin:0 0 14px 20px}
ul li{margin-bottom:7px;line-height:1.7;font-size:1rem}
a{color:var(--tx);text-decoration:underline}
a:hover{opacity:.75}
.highlight{background:var(--bg2);border-left:3px solid var(--tx);padding:14px 18px;border-radius:0 6px 6px 0;margin-bottom:24px}
.highlight p{margin-bottom:0;color:var(--tx);font-weight:500}
footer{background:#1a2530;padding:28px 36px}
.ft{max-width:1080px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px}