:root {
  --bg: #0b1220;
  --bg-soft: #111a2c;
  --panel: #16233a;
  --panel-2: #1d2d49;
  --line: #263a5c;
  --text: #e6eefc;
  --muted: #9fb1cd;
  --accent: #4cc2ff;
  --accent-2: #7ef0c0;
  --warn: #ffcf6b;
  --danger: #ff7676;
  --radius: 14px;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(1200px 600px at 15% -10%, #173052 0%, var(--bg) 55%) fixed;
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", system-ui, sans-serif;
  line-height: 1.7;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: #0a1526; border: 1px solid var(--line); border-radius: 6px; padding: 0.1em 0.4em; font-size: 0.92em; }
pre { background: #0a1526; border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; overflow-x: auto; }
pre code { border: 0; padding: 0; background: transparent; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(11, 18, 32, 0.86);
  border-bottom: 1px solid var(--line);
}
.site-header .inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: 0.02em; }
.brand .dot { width: 10px; height: 10px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: 0 0 14px rgba(76, 194, 255, 0.8); }
.nav { display: flex; gap: 14px; flex-wrap: wrap; margin-left: auto; }
.nav a { color: var(--muted); font-size: 14px; }
.nav a:hover, .nav a.active { color: var(--text); text-decoration: none; }

main { max-width: 1080px; margin: 0 auto; padding: 28px 20px 80px; }
.hero { padding: 42px 0 20px; }
.hero h1 { font-size: 36px; margin: 0 0 12px; line-height: 1.25; }
.hero p.lead { font-size: 18px; color: var(--muted); max-width: 780px; margin: 0 0 22px; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 14px; color: var(--muted); font-size: 14px;
}
.badge strong { color: var(--accent-2); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 10px; padding: 11px 18px; font-size: 15px; font-weight: 600;
  border: 1px solid var(--line); background: var(--panel); color: var(--text);
  cursor: pointer;
}
.button.primary { background: linear-gradient(135deg, #2388d8, #25b6a4); border: 0; color: #04121d; }
.button:hover { text-decoration: none; filter: brightness(1.08); }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card {
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.card .meta { color: var(--muted); font-size: 13px; margin-top: 10px; }

section { margin: 38px 0; }
section > h2 { font-size: 24px; margin: 0 0 14px; }
section > h2 .sub { color: var(--muted); font-size: 14px; font-weight: 400; margin-left: 10px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.mono { font-family: Consolas, "Courier New", monospace; word-break: break-all; }
.callout { border-left: 3px solid var(--accent); background: rgba(76, 194, 255, 0.08); padding: 12px 16px; border-radius: 0 10px 10px 0; color: var(--muted); }
.callout.warn { border-color: var(--warn); background: rgba(255, 207, 107, 0.08); }
.callout.danger { border-color: var(--danger); background: rgba(255, 118, 118, 0.08); }

.flow { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; color: var(--muted); font-size: 14px; }
.flow .node { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; color: var(--text); }
.flow .arrow { color: var(--accent); }

.package-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.package {
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; display: flex; flex-direction: column; gap: 8px;
}
.package h3 { margin: 0; font-size: 17px; }
.package .desc { color: var(--muted); font-size: 14px; min-height: 44px; }
.package .file { color: var(--muted); font-size: 12.5px; word-break: break-all; }
.package .row { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 6px; }
.package .button { padding: 9px 14px; font-size: 14px; }
.package .hash { color: #6f86a8; font-size: 11.5px; word-break: break-all; }

.timeline { position: relative; margin-left: 8px; padding-left: 22px; border-left: 2px solid var(--line); }
.timeline .release { margin-bottom: 26px; position: relative; }
.timeline .release::before {
  content: ""; position: absolute; left: -30px; top: 8px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 4px rgba(76, 194, 255, 0.12);
}
.timeline h3 { margin: 0 0 4px; font-size: 18px; }
.timeline .date { color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.timeline ul { margin: 6px 0 0; padding-left: 20px; color: var(--muted); }
.timeline li { margin: 3px 0; }
.timeline details { margin-top: 8px; }
.timeline summary { cursor: pointer; color: var(--accent); font-size: 13.5px; }

.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; vertical-align: top; }
.table th { background: var(--panel); color: var(--text); font-weight: 600; }
.table td { color: var(--muted); }

.faq details { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); margin-bottom: 10px; padding: 0 16px; }
.faq summary { cursor: pointer; padding: 14px 0; font-weight: 600; }
.faq .answer { color: var(--muted); padding: 0 0 14px; }

.site-footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.site-footer .inner { max-width: 1080px; margin: 0 auto; padding: 24px 20px 40px; }
.site-footer a { color: var(--muted); }

h1, h2, h3, h4 { scroll-margin-top: 80px; }

@media (max-width: 640px) {
  .hero h1 { font-size: 28px; }
  main { padding-top: 18px; }
  .nav { width: 100%; margin-left: 0; }
}