:root { color-scheme: dark; }
* { box-sizing: border-box; }
body {
  margin: 0; padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #0b1020; color: #cbd5e1; line-height: 1.65;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 48px 22px 80px; }
header { text-align: center; margin-bottom: 36px; }
header img { width: 84px; height: 84px; border-radius: 20px; }
header h1 { margin: 14px 0 2px; font-size: 26px; color: #f1f5f9; font-weight: 700; }
header .tag { color: #64748b; font-size: 14px; }
h2 { color: #22c596; font-size: 19px; margin: 34px 0 10px; }
h3 { color: #e2e8f0; font-size: 16px; margin: 22px 0 6px; }
p, li { font-size: 15px; }
a { color: #34d399; text-decoration: none; }
a:hover { text-decoration: underline; }
strong { color: #f1f5f9; }
code { background: #1e293b; padding: 1px 6px; border-radius: 5px; font-size: 13px; }
.muted { color: #64748b; font-size: 13px; }
.card { background: #131a2e; border: 1px solid #1e293b; border-radius: 14px; padding: 22px 24px; margin: 18px 0; }
.btnrow { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 22px; }
.btn { display: inline-block; padding: 12px 22px; border-radius: 999px; background: linear-gradient(135deg,#22c596,#0f9e76); color: #fff; font-weight: 600; }
.btn.ghost { background: transparent; border: 1px solid #1e293b; color: #cbd5e1; }
hr { border: none; border-top: 1px solid #1e293b; margin: 30px 0; }
footer { text-align: center; color: #475569; font-size: 12px; margin-top: 50px; }