:root{--ink:#111827;--muted:#6b7280;--brand:#0f766e;--bg:#fafaf9;--card:#fff;--line:#e5e7eb}
*{box-sizing:border-box}body{margin:0;font:16px/1.55 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand)}.wrap{max-width:960px;margin:0 auto;padding:0 20px}
.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 20px}.brand{font-weight:800;font-size:22px;color:var(--ink);text-decoration:none}.brand span{color:var(--brand)}
nav a{margin-left:18px;color:var(--ink);text-decoration:none;font-weight:500}nav a:hover{color:var(--brand)}
.hero{padding:56px 0 24px}.hero h1{font-size:40px;line-height:1.15;margin:0 0 12px}.lead{font-size:19px;color:#374151}
.btn{display:inline-block;background:var(--brand);color:#fff;padding:10px 18px;border-radius:8px;text-decoration:none;font-weight:600;margin-right:8px}.btn.ghost{background:transparent;color:var(--brand);border:1px solid var(--brand)}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin:28px 0}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}.card{display:flex;flex-direction:column;gap:6px;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;color:var(--ink);text-decoration:none}.card:hover{border-color:var(--brand)}.card span{color:var(--muted);font-size:14px}.card em{font-style:normal;font-size:12px;color:var(--brand)}
.pack{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px;text-align:center}.price{font-size:38px;font-weight:800;margin:6px 0}
.notice{background:#ecfdf5;border:1px solid #a7f3d0;padding:14px 16px;border-radius:10px;margin:24px 0}
pre{background:#0b1220;color:#e5e7eb;padding:14px;border-radius:10px;overflow-x:auto;font-size:13px}code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}p code,li code{background:#eef2f7;padding:1px 5px;border-radius:4px;font-size:90%}
.prose{max-width:720px}.muted{color:var(--muted);font-size:14px}.foot{padding:40px 20px;border-top:1px solid var(--line);margin-top:48px;font-size:14px;color:var(--muted)}.foot a{color:var(--muted)}
@media(max-width:640px){.hero h1{font-size:30px}nav a{margin-left:12px;font-size:14px}}