:root{
  --fg:#0b1320;
  --muted:#5a6472;
  --bg:#ffffff;
  --accent:#ff7a45;
  --border:#e9edf3;
}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.65}
.container{max-width:960px;margin:0 auto;padding:24px}
h1,h2,h3{line-height:1.25;margin:1.2em 0 .6em}
h1{font-size:1.8rem}
h2{font-size:1.25rem;border-left:4px solid var(--accent);padding-left:.6rem}
h3{font-size:1.05rem}
p,li{color:var(--fg)}
.note{background:#fff7f3;border:1px solid #ffe1d6;color:#8a3b11;padding:.8rem;border-radius:8px}
.muted{color:var(--muted)}
ul,ol{padding-left:1.2rem}
.section{padding:8px 0;border-top:1px solid var(--border)}
.top-meta{display:flex;flex-wrap:wrap;gap:.75rem;color:var(--muted);font-size:.95rem;margin-bottom:1rem}
.chip{display:inline-block;border:1px solid var(--border);border-radius:999px;padding:.2rem .6rem;background:#fafbfd}
.table{width:100%;border-collapse:collapse;margin:.6rem 0}
.table th,.table td{border:1px solid var(--border);padding:.55rem;vertical-align:top}
.table th{background:#fafbfd;text-align:left}
@media (max-width:640px){
  .container{padding:16px}
  h1{font-size:1.4rem}
  h2{font-size:1.15rem}
  .table{display:block;overflow:auto}
}
a{color:#0b72ff;text-decoration:none}
a:hover{text-decoration:underline}
footer{margin:2rem 0;color:var(--muted);font-size:.95rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.75rem}
footer p{margin:0}
footer .links{display:flex;gap:.5rem 1rem;align-items:center;flex-wrap:wrap}
footer .links a{color:var(--muted);font-size:.9rem;transition:color .2s}
footer .links a:hover{color:var(--accent);text-decoration:none}
footer .links .separator{color:var(--border);user-select:none}
@media (max-width:640px){
  footer{flex-direction:column;align-items:flex-start}
  footer .links{flex-direction:column;align-items:flex-start;gap:.4rem}
  footer .links .separator{display:none}
}