:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1c2430;
  --muted: #5d6878;
  --line: #e3e7ec;
  --brand: #c8102e;
  --brand-soft: #fdecee;
  --ball: #ffd34d;
  --ball-text: #3a2a00;
  --special: #c8102e;
  --special-text: #ffffff;
  --bar: #4c7cf0;
  --bar-hot: #e8553e;
  --ok: #12805c;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161c;
    --card: #1b2028;
    --text: #e7ebf0;
    --muted: #9aa5b4;
    --line: #2c333e;
    --brand: #ff5a6e;
    --brand-soft: #3a1d23;
    --ball: #f2c230;
    --special: #e3394f;
    --bar: #6d95ff;
    --bar-hot: #ff7a5c;
    --ok: #3ccf95;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, "Segoe UI", "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 16px; }

header.site { background: var(--card); border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; gap: 20px; height: 56px; overflow-x: auto; }
header.site .logo { font-weight: 700; color: var(--text); white-space: nowrap; }
header.site nav { display: flex; gap: 16px; white-space: nowrap; }
header.site nav a { color: var(--muted); }
header.site nav a.on { color: var(--brand); font-weight: 600; }

main { padding: 24px 0 48px; }
h1 { font-size: 1.6rem; margin: 0 0 4px; }
h2 { font-size: 1.2rem; margin: 0 0 12px; }
.sub { color: var(--muted); margin: 0 0 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; margin-bottom: 20px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 720px) { .grid2 { grid-template-columns: 1fr; } }

.balls { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.ball {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--ball); color: var(--ball-text);
  font-weight: 700; font-size: 1.1rem; font-variant-numeric: tabular-nums;
  box-shadow: inset 0 -3px 0 rgba(0,0,0,.12);
}
.ball.sp { background: var(--special); color: var(--special-text); }
.ball.sm { width: 30px; height: 30px; font-size: .85rem; box-shadow: none; }
.plus { color: var(--muted); font-weight: 700; margin: 0 2px; }
.meta { color: var(--muted); font-size: .9rem; }

table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { padding: 8px 6px; border-bottom: 1px solid var(--line); text-align: left; }
th { color: var(--muted); font-weight: 600; font-size: .85rem; white-space: nowrap; }
.barcol { min-width: 80px; }
@media (max-width: 600px) { .barcol { display: none; } }
td.r, th.r { text-align: right; }
.scroll { overflow-x: auto; }
th[data-sort] { cursor: pointer; user-select: none; }
th[data-sort]:hover { color: var(--text); }

.bar { height: 10px; border-radius: 5px; background: var(--bar); min-width: 2px; }
.bar.hot { background: var(--bar-hot); }

/* 號碼回測 */
.picker { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; max-width: 420px; }
.picker button {
  aspect-ratio: 1; border-radius: 50%; border: 1px solid var(--line);
  background: var(--bg); color: var(--text); font: inherit; font-weight: 600; cursor: pointer;
}
.picker button.on { background: var(--ball); color: var(--ball-text); border-color: transparent; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 14px; }
select, .btn {
  font: inherit; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--card); color: var(--text);
}
.btn { cursor: pointer; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
.btn:disabled { opacity: .5; cursor: default; }
.result { margin-top: 16px; padding: 14px; border-radius: 10px; background: var(--brand-soft); display: none; }
.result.show { display: block; }
.result .win { color: var(--ok); font-weight: 700; }
.hit { outline: 3px solid var(--ok); outline-offset: 2px; }

.pager { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.pager a { padding: 4px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); }
.pager a.on { background: var(--brand); color: #fff; border-color: var(--brand); }
.prevnext { display: flex; justify-content: space-between; gap: 12px; }

.note { font-size: .85rem; color: var(--muted); }
.ad { margin: 20px 0; min-height: 0; }
footer { border-top: 1px solid var(--line); padding: 24px 0; color: var(--muted); font-size: .85rem; }
footer a { color: var(--muted); }

/* 多玩法 */
.ball.digit { border-radius: 10px; background: var(--bar); color: #fff; }
.picker.zone { grid-template-columns: repeat(8, 1fr); max-width: 420px; }
.picker.zone button.on { background: var(--special); color: var(--special-text); }
.digits { display: flex; gap: 8px; }
.digits input {
  width: 52px; height: 52px; text-align: center; font: inherit; font-size: 1.4rem; font-weight: 700;
  border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--text);
}
.subnav { display: flex; gap: 6px; flex-wrap: wrap; margin: 0 0 20px; }
.subnav a { padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); color: var(--muted); }
.subnav a.on { background: var(--brand); border-color: var(--brand); color: #fff; }
.games { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin-bottom: 20px; }
.games .card { margin: 0; display: flex; flex-direction: column; gap: 10px; }
.games h2 { margin: 0; }
.games h2 a { color: var(--text); }
.tag { display: inline-block; font-size: .75rem; padding: 1px 8px; border-radius: 999px; background: var(--line); color: var(--muted); vertical-align: middle; margin-left: 6px; }
.picker.bingo { grid-template-columns: repeat(10, 1fr); max-width: 520px; }
.bingo-nums { min-width: 280px; font-size: .9rem; letter-spacing: .02em; word-spacing: .15em; }
.bingo-nums b { color: var(--special); }
.picker.bingo { gap: 4px; }
.picker.bingo button { min-width: 0; padding: 0; font-size: .85rem; }
.freq { display: grid; grid-template-columns: repeat(auto-fill, minmax(72px, 1fr)); gap: 8px; }
.freq div { display: flex; align-items: center; gap: 6px; padding: 4px 6px; border-radius: 8px; font-variant-numeric: tabular-nums; }
.freq div.hot { background: var(--brand-soft); font-weight: 700; }
.card[id] { scroll-margin-top: 12px; }