:root{color-scheme:light dark;--bg:#f7f8f5;--ink:#17211c;--muted:#69756d;--line:#dce3dc;--brand:#256047;--panel:#eff2ec}
@media(prefers-color-scheme:dark){:root{--bg:#17211c;--ink:#e8eee9;--muted:#afbbb1;--line:#33443a;--brand:#7ccaa0;--panel:#202c24}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 system-ui,"PingFang SC",sans-serif}
a{color:var(--ink);text-decoration:none}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
a:focus-visible{outline:2px solid var(--brand);outline-offset:5px;border-radius:3px}
.page{max-width:920px;margin:0 auto;padding:28px}
header,nav{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
header{padding-bottom:20px;border-bottom:1px solid var(--line)}
nav a{display:inline-flex;align-items:center;min-height:44px}
.brand{font-family:ui-monospace,monospace;font-weight:500;letter-spacing:.04em}
.hero{padding:40px 0 30px}
h1{font-size:32px;font-weight:500;line-height:1.3;margin:8px 0 16px}
p{margin:8px 0;color:var(--muted)}
section+section{margin-top:28px}
h2{font-size:17px;font-weight:500;margin:0 0 14px}
.feature{display:block;padding:22px;background:var(--panel);border-radius:12px}
.feature strong{font-size:21px;font-weight:500}
.feature span{display:block;color:var(--muted);font-size:14px;margin-top:9px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px}
.entry{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line)}
.entry small{display:block;color:var(--muted);font-size:13px;margin-top:6px}
footer{margin-top:32px;padding-top:18px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
@media(max-width:480px){.page{padding:20px}.grid{grid-template-columns:1fr}h1{font-size:28px}}