:root{color-scheme:light;--ink:#233033;--muted:#657370;--line:#dce4df;--accent:#176455;--paper:#fafbf8}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.85 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}a{color:var(--accent);text-underline-offset:4px}header{max-width:1056px;margin:auto;padding:24px 36px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);gap:24px}.brand{font-size:18px;font-weight:700;color:var(--ink);text-decoration:none}nav{display:flex;gap:24px}nav a{text-decoration:none}nav [aria-current]{font-weight:700}main{max-width:860px;margin:auto;padding:64px 36px 36px}.eyebrow{font-size:13px;color:var(--accent);letter-spacing:.06em}h1{font-size:clamp(30px,5vw,46px);line-height:1.35;letter-spacing:-.02em;margin:18px 0 28px}h2{font-size:22px;line-height:1.45;margin:0 0 16px}.lead{font-size:19px;line-height:1.9}.muted,footer{color:var(--muted)}section{margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}p{margin:12px 0}ul{padding-left:24px}li{padding-left:4px;margin:12px 0}.note{background:#edf4ef;padding:28px;border:0;border-radius:12px}footer{max-width:860px;margin:auto;padding:24px 36px 48px;font-size:13px;border-top:1px solid var(--line)}@media(max-width:560px){header{padding:20px;align-items:flex-start;flex-direction:column;gap:10px}main{padding:32px 20px}h1{font-size:31px}.lead{font-size:17px}.note{padding:22px}footer{padding:24px 20px}nav{gap:20px}}@media print{body{background:#fff}header,main,footer{max-width:none}main{padding-top:20px}section{break-inside:avoid}a{color:inherit}.note{border:1px solid var(--line)}}