:root{--red:#b3101a;--deep:#6b0710;--ink:#1d1d1f;--muted:#5f6368;--bg:#fbf8f5;--card:#fff;--line:#ece6e0}
@media (prefers-color-scheme:dark){:root{--ink:#f2f2f2;--muted:#b4b4b8;--bg:#141416;--card:#1e1e22;--line:#2c2c31}}
*{box-sizing:border-box}
body{margin:0;font:17px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
header{background:radial-gradient(120% 140% at 30% 0%,#e8343b 0%,var(--red) 50%,var(--deep) 100%);color:#fff;padding:48px 16px 56px;text-align:center}
header img{width:96px;height:96px;border-radius:22px;box-shadow:0 10px 30px rgba(0,0,0,.35)}
header h1{margin:16px 0 6px;font-size:34px;line-height:1.15}
header p{margin:0 auto;max-width:560px;opacity:.92}
nav{display:flex;gap:18px;justify-content:center;margin-top:18px;flex-wrap:wrap}
nav a{color:#fff;font-weight:600;text-decoration:none;border-bottom:2px solid rgba(255,255,255,.45)}
main{max-width:760px;margin:0 auto;padding:28px 16px 60px}
h2{font-size:24px;margin:36px 0 10px}
h3{font-size:18px;margin:22px 0 6px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px 20px;margin:14px 0}
.steps{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.steps .card{margin:0}
.num{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--red);color:#fff;font-weight:700;font-size:15px;margin-right:6px}
.muted{color:var(--muted);font-size:15px}
a{color:var(--red)}
@media (prefers-color-scheme:dark){a{color:#ff6b72}}
ul{padding-left:22px}
li{margin:4px 0}
footer{text-align:center;color:var(--muted);font-size:14px;padding:24px 16px 40px}