:root {
  --accent: #2563eb;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.wrap { width: 100%; max-width: 960px; margin: 0 auto; padding: 0 20px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.3; margin: 0 0 12px; }
h1 { font-size: 28px; }
h2 { font-size: 20px; }
h3 { font-size: 16px; }
p { margin: 0 0 12px; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); }

.top { background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 58px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 650; color: var(--ink); font-size: 15px; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 22px; height: 22px; color: var(--accent); flex: none; }
.nav { display: flex; align-items: center; gap: 18px; font-size: 14px; }
.nav a { color: var(--muted); }
.nav a:hover { color: var(--accent); text-decoration: none; }
.auth-slot { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }
.auth-slot .dot { width: 7px; height: 7px; border-radius: 50%; background: #10b981; display: inline-block; }
.auth-slot button { background: none; border: 0; color: var(--muted); cursor: pointer; font-size: 13px; padding: 0; text-decoration: underline; }
.auth-slot button:hover { color: var(--accent); }

main { flex: 1; padding: 34px 20px 48px; }
.hero { padding: 26px 0 8px; }
.hero h1 { font-size: 34px; letter-spacing: -.01em; }
.lead { font-size: 17px; color: var(--muted); max-width: 620px; }

.btn {
  display: inline-block; background: var(--accent); color: #fff; border: 1px solid var(--accent);
  padding: 9px 20px; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer;
}
.btn:hover { filter: brightness(1.07); text-decoration: none; color: #fff; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.ghost:hover { background: rgba(0,0,0,.03); }
.btn-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-top: 18px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 26px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px; }
.card h3 { margin-bottom: 6px; }
.card p { font-size: 14px; color: var(--muted); margin-bottom: 10px; }
.card .count { font-size: 12px; color: var(--muted); }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 22px; margin-bottom: 20px; }
.crumb { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--accent); }

.cat { margin-bottom: 28px; }
.cat-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 4px; }
.cat-head .tag { font-family: var(--mono); font-size: 12px; color: var(--accent); background: color-mix(in srgb, var(--accent) 9%, transparent); padding: 2px 8px; border-radius: 5px; }
.cat-desc { color: var(--muted); font-size: 14px; margin-bottom: 12px; }
table.rel { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
table.rel th, table.rel td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); font-size: 14px; vertical-align: top; }
table.rel th { background: #fafbfc; color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
table.rel tr:last-child td { border-bottom: 0; }
table.rel td.ver { font-family: var(--mono); font-weight: 600; white-space: nowrap; }
table.rel td.date { color: var(--muted); white-space: nowrap; font-family: var(--mono); font-size: 13px; }
table.rel td.sum { color: var(--muted); }

.meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin: 16px 0 4px; }
.meta div { border-left: 2px solid var(--line); padding-left: 12px; }
.meta dt { font-size: 12px; color: var(--muted); margin-bottom: 2px; }
.meta dd { margin: 0; font-size: 14px; font-family: var(--mono); }
.changelog { margin: 8px 0 0; padding-left: 20px; }
.changelog li { margin-bottom: 6px; font-size: 14px; }
.section-title { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 22px 0 8px; font-weight: 650; }

.login-box { max-width: 420px; margin: 10px auto; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; }
.field input { width: 100%; padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; background: #fff; color: var(--ink); }
.field input:focus { outline: 2px solid color-mix(in srgb, var(--accent) 35%, transparent); border-color: var(--accent); }
.err { color: #b91c1c; font-size: 13px; margin-bottom: 12px; }

.result { text-align: center; padding: 30px 22px; }
.result .ok { width: 54px; height: 54px; border-radius: 50%; background: color-mix(in srgb, #10b981 14%, transparent); color: #059669; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.result .ok svg { width: 28px; height: 28px; }
.result h1 { font-size: 26px; }
.result .ver-box { display: inline-block; text-align: left; background: #fafbfc; border: 1px solid var(--line); border-radius: 8px; padding: 14px 18px; margin-bottom: 22px; font-size: 14px; }
.result .ver-box .mono { font-weight: 600; }

.empty { text-align: center; padding: 50px 20px; color: var(--muted); }
.foot { border-top: 1px solid var(--line); background: var(--panel); }
.foot-in { display: flex; justify-content: space-between; gap: 12px; padding: 16px 20px; font-size: 13px; color: var(--muted); flex-wrap: wrap; }

@media (max-width: 640px) {
  .top-in { height: auto; padding: 10px 20px; flex-wrap: wrap; }
  .hero h1 { font-size: 27px; }
  table.rel td.sum { display: none; }
  main { padding: 24px 16px 36px; }
}
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin: 22px 0 8px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; }
.stat-v { font-size: 22px; font-weight: 650; }
.stat-l { font-size: 13px; color: var(--muted); margin-top: 2px; }
.badge { display: inline-block; font-size: 12px; padding: 2px 10px; border-radius: 999px; }
.badge.on { background: color-mix(in srgb, #10b981 14%, transparent); color: #047857; }
.badge.off { background: #f3f4f6; color: var(--muted); }