*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:#f8faf9;color:#1a1a2e;line-height:1.65}
.wrap{max-width:860px;margin:0 auto;padding:24px}
.nav{display:flex;justify-content:space-between;align-items:center;padding:14px 0;margin-bottom:24px;border-bottom:1px solid #e5e7eb;flex-wrap:wrap;gap:8px}
.nav .brand{font-weight:800;color:#25D366;font-size:18px;text-decoration:none}
.nav .links a{margin-left:14px;color:#374151;text-decoration:none;font-weight:500;font-size:13px}
.nav .links a:hover{color:#25D366}
h1{font-size:32px;margin-bottom:8px;font-weight:800;letter-spacing:-0.5px}
.meta{color:#6b7280;font-size:14px;margin-bottom:32px;padding-bottom:16px;border-bottom:1px solid #e5e7eb}
h2{font-size:22px;margin:32px 0 12px 0;color:#0f172a;font-weight:700}
h3{font-size:17px;margin:20px 0 8px 0;color:#374151;font-weight:700}
p{margin-bottom:14px;color:#374151;font-size:15px}
ul,ol{margin:10px 0 18px 24px;color:#374151}
li{margin-bottom:6px;font-size:15px}
.callout{background:#fff;border-left:4px solid #25D366;padding:16px 20px;border-radius:8px;margin:20px 0;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.callout.warn{border-left-color:#f59e0b;background:#fffbeb}
.callout.danger{border-left-color:#dc2626;background:#fef2f2}
table{width:100%;border-collapse:collapse;margin:20px 0;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,.04);font-size:14px}
th,td{padding:10px 14px;text-align:left;border-bottom:1px solid #f3f4f6}
th{background:#f8faf9;font-weight:700;color:#374151}
a{color:#6366f1;text-decoration:none;font-weight:600}
a:hover{text-decoration:underline}
footer{margin-top:60px;padding:24px 0;border-top:1px solid #e5e7eb;text-align:center;color:#9ca3af;font-size:13px}
footer a{color:#25D366}
.toc{background:#fff;padding:18px 22px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.04);margin-bottom:28px}
.toc h3{margin-top:0}
.toc ul{margin-left:18px}
.toc a{font-weight:500;color:#374151}
form input,form textarea,form select{width:100%;padding:10px 12px;border:1px solid #d1d5db;border-radius:8px;font-size:14px;margin-bottom:10px;font-family:inherit}
form button{background:#25D366;color:#fff;border:0;padding:12px 24px;border-radius:10px;font-weight:700;cursor:pointer;font-size:14px}
form label{font-weight:600;font-size:13px;color:#374151;display:block;margin-bottom:4px;margin-top:8px}