:root {
  --bg: #0f1419;
  --bg2: #1a2332;
  --bg3: #243044;
  --card: #1e2a3a;
  --border: #2d3f56;
  --text: #e7eef7;
  --muted: #8fa3b8;
  --accent: #3b9eff;
  --accent2: #5eead4;
  --warn: #fbbf24;
  --danger: #f87171;
  --ok: #34d399;
  --promo: #fb923c;
  --radius: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,.35);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px 48px; }

header.hero {
  background: linear-gradient(135deg, #152033 0%, #1a3a5c 50%, #0f2a28 100%);
  border-bottom: 1px solid var(--border);
  padding: 28px 0 22px;
  margin-bottom: 24px;
}
header.hero h1 {
  margin: 0 0 8px;
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: .02em;
}
header.hero .sub { color: var(--muted); font-size: .95rem; margin: 0; }
header.hero .meta {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: .85rem;
  color: var(--muted);
}
header.hero .meta strong { color: var(--accent2); font-weight: 600; }

nav.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
}
nav.toc a {
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: .85rem;
  color: var(--text);
}
nav.toc a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px 14px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
}
section h2 {
  margin: 0 0 12px;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
section h2 .badge {
  font-size: .7rem;
  background: var(--bg3);
  color: var(--muted);
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 500;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
  margin-bottom: 12px;
  font-size: .9rem;
}
.controls label { color: var(--muted); margin-right: 4px; }
.controls select, .controls button {
  background: var(--bg2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: .9rem;
}
.controls button { cursor: pointer; }
.controls button:hover { border-color: var(--accent); }
.controls button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #041018;
  font-weight: 600;
}
.chip-row { display: flex; flex-wrap: wrap; gap: 6px; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
  min-width: 640px;
}
th, td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}
th {
  background: var(--bg2);
  color: var(--muted);
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  position: sticky;
  top: 0;
}
th:hover { color: var(--accent); }
th.sorted-asc::after { content: " ▲"; font-size: .7em; color: var(--accent); }
th.sorted-desc::after { content: " ▼"; font-size: .7em; color: var(--accent); }
tr:hover td { background: rgba(59,158,255,.06); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.price-list { color: var(--muted); text-decoration: line-through; font-size: .85em; }
.price-promo { color: var(--promo); font-weight: 700; }
.tag {
  display: inline-block;
  font-size: .72rem;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--bg3);
  color: var(--muted);
  margin-left: 4px;
}
.tag.manual { background: #3a2a12; color: var(--warn); }
.tag.gift { background: #123a2a; color: var(--ok); }
.tag.api { background: #1a2a3a; color: var(--accent); }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.plat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
}
.plat-card h3 { margin: 0 0 6px; font-size: 1rem; }
.plat-card .stat { color: var(--muted); font-size: .85rem; }
.plat-card .stat b { color: var(--text); }

.placeholder {
  background: var(--bg2);
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 20px;
  color: var(--muted);
  text-align: center;
}
.placeholder code {
  display: block;
  margin-top: 10px;
  font-size: .8rem;
  color: var(--accent2);
  word-break: break-all;
}

.changelog li {
  margin-bottom: 8px;
  color: var(--text);
}
.changelog .when { color: var(--muted); font-size: .85rem; }
.changelog ul.changes { margin: 4px 0 0; padding-left: 18px; color: var(--muted); font-size: .88rem; }

footer {
  margin-top: 28px;
  padding: 18px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .82rem;
}
footer .caveats { margin-top: 8px; }
.err {
  background: #3a1515;
  border: 1px solid var(--danger);
  color: #fecaca;
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 16px;
}

@media (max-width: 640px) {
  header.hero h1 { font-size: 1.3rem; }
  section { padding: 14px 12px; }
  table { font-size: .8rem; }
  th, td { padding: 6px 7px; }
}

.rate-note {
  margin: 10px 0 0;
  padding: 10px 12px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.5;
}
.rate-note strong { color: var(--text); }
#creditRateSelect { min-width: 260px; max-width: 100%; }
.filters label { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); }
.filters select { max-width: min(420px, 90vw); }

.muted{opacity:.72;font-size:.85em}

.market-cta { margin: .6rem 0 0; }
.btn-market {
  display: inline-block; padding: .45rem .9rem; border-radius: 999px;
  background: #1d4ed8; color: #fff !important; font-weight: 600; text-decoration: none !important;
}
.btn-market:hover { background: #2563eb; }