:root{--ink:#18212b;--muted:#5b6672;--accent:#1d6b57;--line:#e3e7ea;--bg:#fbfaf7}
*{box-sizing:border-box}body{margin:0;font:17px/1.6 ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}
.top{display:flex;justify-content:space-between;align-items:center;padding:14px 24px;border-bottom:1px solid var(--line);background:#fff;flex-wrap:wrap;gap:8px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:20px;color:var(--ink);text-decoration:none}
nav a{margin-left:18px;color:var(--ink);text-decoration:none}nav a:hover{text-decoration:underline}
.notice{background:#fff4d6;border-bottom:1px solid #f0dc9c;padding:8px 24px;font-size:14px;text-align:center}
main{max-width:880px;margin:0 auto;padding:24px}
.hero h1{font-size:44px;line-height:1.1;margin:32px 0 12px}.lead{font-size:19px;color:#2c3945}
h2{margin-top:48px;border-top:1px solid var(--line);padding-top:24px}
.steps li{margin-bottom:10px}.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.tier{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}.price{font-size:30px;font-weight:700;color:var(--accent);margin:4px 0}
.muted{color:var(--muted);font-size:15px}code{background:#eef1f3;padding:1px 4px;border-radius:4px}
footer{max-width:880px;margin:40px auto;padding:0 24px;color:var(--muted);font-size:14px}
img{max-width:100%}.wm{background:#141414;color:#fff;padding:6px 10px;border-radius:6px;display:inline-block}