:root{--aw:#F26722;--ink:#222;--muted:#666;--bg:#f4f4f4}
*{box-sizing:border-box}body{margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg);font:16px/1.5 -apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);padding:24px}
.card{background:#fff;max-width:560px;width:100%;padding:40px 36px;border-radius:10px;box-shadow:0 8px 30px rgba(0,0,0,.08);border-top:5px solid var(--aw)}
.logo{display:block;max-width:220px;height:auto;margin:0 auto 22px}
h1{font-size:1.35rem;margin:0 0 12px;text-align:center}
p{margin:0 0 12px}code{background:#f0f0f0;padding:1px 5px;border-radius:4px;font-size:.92em}
ul{padding-left:20px}.ok{color:#1f8a3b;font-weight:600}.warn{color:var(--aw);font-weight:600}.err{color:#b3261e;font-weight:600}
.foot{margin-top:28px;font-size:.8rem;color:var(--muted);text-align:center}