:root {
  --bg: #060910;
  --panel: #0d1421;
  --panel-2: #111a2b;
  --line: rgba(148, 163, 184, .12);
  --line-2: rgba(148, 163, 184, .22);
  --text: #e9eff9;
  --muted: #93a3ba;
  --dim: #5d6d85;
  --cyan: #22d3ee;
  --red: #fb7185;
  --mono: "SFMono-Regular", "Cascadia Code", "JetBrains Mono", Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: radial-gradient(1100px 620px at 15% -10%, #0c1a2b 0%, transparent 60%), var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.wrap { max-width: 780px; margin: 0 auto; padding: 40px 22px 90px; }

.top { display: flex; align-items: center; gap: 12px; margin-bottom: 44px; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px; flex: 0 0 auto;
  background: linear-gradient(135deg, var(--cyan), #2dd4bf);
  color: #041017; font-weight: 800; font-size: 16px;
  display: grid; place-items: center;
}
.brand-name { font-weight: 700; font-size: 14px; }
.brand-sub { font-size: 11px; color: var(--dim); font-family: var(--mono); letter-spacing: .04em; }
.back {
  margin-left: auto; font-size: 12.5px; color: var(--muted); text-decoration: none;
  border: 1px solid var(--line-2); padding: 6px 13px; border-radius: 8px; white-space: nowrap;
}
.back:hover { color: var(--cyan); border-color: var(--cyan); }

h1 { font-size: 27px; letter-spacing: -.02em; line-height: 1.35; }
.meta { font-size: 12px; color: var(--dim); font-family: var(--mono); margin: 10px 0 34px; }

h2 {
  font-size: 15.5px; font-weight: 700; margin: 32px 0 10px;
  padding-top: 20px; border-top: 1px solid var(--line);
}
h2:first-of-type { border-top: none; padding-top: 0; }

p { color: var(--muted); font-size: 14px; margin-bottom: 12px; }
p:last-child { margin-bottom: 0; }
ul { margin: 0 0 14px 20px; }
li { color: var(--muted); font-size: 14px; margin-bottom: 6px; }
li::marker { color: var(--dim); }
b, strong { color: var(--text); font-weight: 600; }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

.warn {
  border-left: 3px solid var(--red);
  background: rgba(251, 113, 133, .07);
  padding: 13px 15px; border-radius: 0 10px 10px 0;
  color: var(--text); font-size: 13.5px; margin: 18px 0;
}

table { width: 100%; border-collapse: collapse; margin: 6px 0 16px; font-size: 13.5px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--dim); font-weight: 500; font-size: 12px; }
td { color: var(--muted); }
td:first-child { color: var(--text); white-space: nowrap; }

.foot {
  margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--line);
  font-size: 12px; color: var(--dim); display: flex; gap: 14px; flex-wrap: wrap; align-items: center;
}
.foot a { color: var(--muted); }
.foot a:hover { color: var(--cyan); }

@media (max-width: 560px) {
  .wrap { padding: 26px 18px 70px; }
  h1 { font-size: 22px; }
  .back { font-size: 12px; padding: 5px 10px; }
}