:root{--g:#1f7a3d;--g2:#155a2c;--bg:#f6f9f6;--ink:#1a1a1a;--mut:#5a675c;--line:#d8e2d8}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,'Segoe UI',Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}
header.top{background:linear-gradient(110deg,var(--g2),var(--g));color:#fff;padding:18px 22px;position:sticky;top:0;z-index:10;box-shadow:0 2px 10px rgba(0,0,0,.12)}
header.top .wrap{max-width:1000px;margin:0 auto;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
header.top b{font-size:20px;letter-spacing:.3px}
header.top .car{color:#bff3c8}
nav{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
nav a{color:#eafff0;text-decoration:none;font-size:13px;padding:5px 10px;border-radius:7px;border:1px solid rgba(255,255,255,.25)}
nav a:hover,nav a.on{background:rgba(255,255,255,.18)}
main{max-width:1000px;margin:0 auto;padding:26px 22px 70px}
.hero{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 28px;margin-bottom:24px}
.hero h1{margin:.1em 0 .2em;color:var(--g2);font-size:28px}
.hero p{color:var(--mut);margin:.3em 0;max-width:70ch}
.pill{display:inline-block;background:#e8f3ea;color:var(--g2);border:1px solid var(--line);border-radius:999px;padding:3px 11px;font-size:12px;font-weight:600;margin:3px 4px 0 0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:20px 0}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 18px;text-decoration:none;color:inherit;transition:.15s;display:block}
.card:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(20,90,44,.12);border-color:var(--g)}
.card .tag{font-size:11px;font-weight:700;color:#fff;background:var(--g);border-radius:6px;padding:2px 8px;display:inline-block}
.card .tag.int{background:#9a6b00}
.card h3{margin:.5em 0 .3em;color:var(--g2);font-size:17px}
.card p{margin:0;color:var(--mut);font-size:13.5px}
article{background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px 32px 34px}
article h1{color:var(--g2);border-bottom:3px solid var(--g);padding-bottom:6px;font-size:24px}
article h2{color:var(--g2);font-size:18px;margin-top:1.5em}
article h3{font-size:15px}
article table{border-collapse:collapse;width:100%;font-size:13.5px;margin:12px 0;display:block;overflow-x:auto}
article th,article td{border:1px solid var(--line);padding:7px 9px;text-align:left;vertical-align:top}
article th{background:#e8f3ea}
article code{background:#eef2ee;padding:1px 4px;border-radius:4px;font-size:.92em}
article pre{background:#f0f4f0;border:1px solid var(--line);padding:12px;border-radius:8px;overflow-x:auto;font-size:12.5px}
article blockquote{border-left:4px solid var(--g);background:#f4faf5;margin:12px 0;padding:8px 14px;color:#33473a;border-radius:0 8px 8px 0}
.svgbox{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;margin:20px 0;text-align:center}
.svgbox svg{max-width:100%;height:auto}
.back{display:inline-block;margin:0 0 14px;color:var(--g);text-decoration:none;font-size:14px}
footer{max-width:1000px;margin:0 auto;padding:24px 22px;color:var(--mut);font-size:12px;border-top:1px solid var(--line)}
.warn{background:#fff7e6;border:1px solid #f0d9a8;color:#7a5600;border-radius:10px;padding:12px 16px;font-size:13.5px;margin:14px 0}
article img{max-width:100%;height:auto;border:1px solid var(--line);border-radius:10px;margin:12px 0;display:block}