:root{--ink:#111827;--accent:#f59e0b;--bg:#fafaf9;--card:#fff;--muted:#6b7280;--line:#e5e7eb}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}a{color:#b45309}header.site{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:var(--card);border-bottom:1px solid var(--line)}header.site .brand{font-weight:800;font-size:22px}header.site .brand,header.site nav a{color:var(--ink);text-decoration:none}header.site nav a{margin-left:18px;font-weight:600}main{max-width:1080px;margin:0 auto;padding:32px 24px 64px}.hero{text-align:center;padding:56px 16px 40px}.hero h1{font-size:44px;line-height:1.15;margin:0 0 16px}.hero p.sub{font-size:20px;color:var(--muted);max-width:720px;margin:0 auto 28px}.cta{display:inline-block;background:var(--ink);color:#fff;padding:14px 28px;border-radius:10px;text-decoration:none;font-weight:700}.cta.secondary{background:var(--card);color:var(--ink);border:1px solid var(--line);margin-left:10px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:18px;gap:18px;margin:28px 0}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}.card h3{margin-top:0}.price{font-size:34px;font-weight:800}.muted{color:var(--muted)}.banner-draft{background:#fef3c7;border:1px solid #f59e0b;border-radius:10px;padding:12px 16px;font-weight:600;margin-bottom:20px}.demo-note{background:#eef2ff;border:1px solid #c7d2fe;border-radius:10px;padding:12px 16px}footer.site{border-top:1px solid var(--line);padding:28px 24px;text-align:center;color:var(--muted);background:var(--card)}footer.site nav a{margin:0 10px;color:var(--muted)}input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font:inherit;margin:4px 0 14px}label{font-weight:600;font-size:14px}button.btn{background:var(--ink);color:#fff;border:0;padding:11px 20px;border-radius:9px;font-weight:700;cursor:pointer}button.btn:disabled{opacity:.55;cursor:wait}button.btn.light{background:var(--card);color:var(--ink);border:1px solid var(--line)}.error{background:#fef2f2;border:1px solid #fecaca;color:#991b1b;border-radius:8px}.error,.ok{padding:10px 14px}.ok{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534;border-radius:8px}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:8px;border-bottom:1px solid var(--line)}details{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin-bottom:10px}summary{font-weight:700;cursor:pointer}