:root {
  --bg: #e8eef5;
  --bg2: #f7fafc;
  --ink: #132033;
  --muted: #5a6b7d;
  --line: #c5d3e0;
  --brand: #0f2744;
  --accent: #c45c26;
  --ok: #1f7a4c;
  --bad: #a33b3b;
  --red-ball: #c62828;
  --blue-ball: #1565c0;
  --card: #ffffff;
  --shadow: 0 8px 24px rgba(15, 39, 68, 0.08);
  --radius: 14px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  max-width: 100%;
  overflow-x: hidden;
}
body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #d7e6f5 0%, transparent 55%),
    radial-gradient(900px 400px at 100% 0%, #f3e6dc 0%, transparent 50%),
    var(--bg);
  min-height: 100vh;
  line-height: 1.5;
}

.top {
  padding: 1.1rem 1rem 0.6rem;
  background: linear-gradient(160deg, var(--brand), #1c3d66);
  color: #f4f7fb;
}
.brand {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.tagline {
  margin: 0.25rem 0 0.4rem;
  opacity: 0.85;
  font-size: 0.9rem;
}

.status {
  margin: 0;
  padding: 0.55rem 1rem;
  font-size: 0.85rem;
  background: #fff8e8;
  color: #6a4b12;
  border-bottom: 1px solid #edd9a8;
  overflow-wrap: anywhere;
}
.status.ok { background: #e8f6ee; color: var(--ok); border-color: #b7dfc6; }
.status.bad { background: #fdeeee; color: var(--bad); border-color: #efc0c0; }

.tabs {
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  padding: 0.75rem 1rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tabs button {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font-size: 0.92rem;
  cursor: pointer;
}
.tabs button.active {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.wrap {
  padding: 0 1rem 2rem;
  max-width: 920px;
  margin: 0 auto;
  display: grid;
  gap: 0.9rem;
  min-width: 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem 1rem 1.1rem;
  min-width: 0;
  max-width: 100%;
}
.card h2 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
}
.muted { color: var(--muted); font-size: 0.88rem; margin: 0.2rem 0; }
.warn {
  color: var(--accent);
  font-size: 0.88rem;
  margin: 0.2rem 0 0.7rem;
}

.latest {
  margin-top: 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
}
.meta-line {
  width: 100%;
  font-size: 0.9rem;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.ball {
  display: inline-flex;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
}
.ball.red { background: var(--red-ball); }
.ball.blue { background: var(--blue-ball); }
.ball.sm {
  width: 1.55rem;
  height: 1.55rem;
  font-size: 0.72rem;
}

.ref-pick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  margin-bottom: 0.6rem;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.5rem;
}
.chip {
  font-size: 0.78rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--bg2);
  border: 1px solid var(--line);
  color: var(--muted);
}
.chip strong { color: var(--ink); font-weight: 600; }

.chart-scroll {
  overflow-x: auto;
  max-width: 100%;
}
#freqChart { width: 100%; max-width: 100%; display: block; }

.trend-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  border-radius: 10px;
  max-width: 100%;
  width: 100%;
}
.trend {
  border-collapse: collapse;
  font-size: 0.72rem;
  min-width: max-content;
}
.trend th, .trend td {
  border: 1px solid #dde5ee;
  padding: 0.18rem 0.2rem;
  text-align: center;
  min-width: 1.45rem;
}
.trend th {
  background: #f0f4f8;
  position: sticky;
  top: 0;
  z-index: 1;
}
.trend .issue {
  position: sticky;
  left: 0;
  background: #fff;
  z-index: 2;
  min-width: 3.4rem;
  font-weight: 600;
}
.trend .hit-red {
  background: var(--red-ball);
  color: #fff;
  border-radius: 999px;
  font-weight: 700;
}
.trend .hit-blue {
  background: var(--blue-ball);
  color: #fff;
  border-radius: 999px;
  font-weight: 700;
}
.trend .miss { color: #9aa8b6; }

.draw-row {
  display: grid;
  gap: 0.25rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--line);
}
.draw-row:last-child { border-bottom: 0; }
.draw-row .balls { display: flex; flex-wrap: wrap; gap: 0.3rem; }
.badge {
  display: inline-block;
  font-size: 0.72rem;
  padding: 0.1rem 0.4rem;
  border-radius: 6px;
  margin-left: 0.35rem;
}
.badge.ok { background: #e5f6ec; color: var(--ok); }
.badge.warn { background: #fff3e0; color: #9a5b00; }

.sources ul {
  margin: 0.3rem 0 0.6rem 1.1rem;
  padding: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.foot {
  text-align: center;
  padding: 0.8rem 1rem 1.6rem;
  color: var(--muted);
  font-size: 0.78rem;
}

@media (min-width: 720px) {
  .brand { font-size: 1.7rem; }
  .card { padding: 1.15rem 1.25rem; }
}