:root {
  --bg: #f6f7f9;
  --card: #fff;
  --text: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --navy: #0f172a;
  --blue: #1d4ed8;
  --up: #047857;
  --down: #b91c1c;
  --soft: #eff6ff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC",
    "PingFang TC", "Microsoft JhengHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.topnav {
  position: sticky; top: 0; z-index: 20;
  display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1.25rem;
  padding: .75rem 1.25rem;
  background: rgba(15,23,42,.96);
  color: #fff;
}
.topnav a { color: #e2e8f0; }
.topnav a:hover, .topnav a.active { color: #fff; }
.brand { font-weight: 700; letter-spacing: .02em; color: #fff !important; }
.nav-links, .day-nav { display: flex; flex-wrap: wrap; gap: .75rem 1rem; align-items: center; }
.day-nav { margin-left: auto; font-size: .9rem; }
.day-nav .cur { color: #93c5fd; font-weight: 600; }
.wrap { max-width: 920px; margin: 0 auto; padding: 1.5rem 1.1rem 3rem; }
.page-h { margin-bottom: 1.75rem; }
.page-h h1 { margin: .2rem 0 .6rem; font-size: 1.75rem; line-height: 1.3; }
.eyebrow { margin: 0; color: var(--muted); font-size: .85rem; letter-spacing: .06em; text-transform: uppercase; }
.lede { color: #334155; }
.stats, .muted { color: var(--muted); font-size: .92rem; }
.board, .detail, .legal { margin: 2rem 0; }
.board h2, .detail h2, .legal h2 {
  font-size: 1.15rem; margin: 0 0 .75rem; padding-bottom: .4rem;
  border-bottom: 2px solid var(--navy);
}
.tbl {
  width: 100%; border-collapse: collapse; background: var(--card);
  border-radius: 10px; overflow: hidden; font-size: .9rem;
  box-shadow: 0 1px 2px rgba(15,23,42,.06);
}
.tbl th, .tbl td { padding: .55rem .6rem; border-bottom: 1px solid var(--line); text-align: left; }
.tbl th { background: var(--navy); color: #fff; font-weight: 600; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl .num { text-align: right; font-variant-numeric: tabular-nums; }
.up { color: var(--up); }
.down { color: var(--down); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 1rem 1.1rem; margin: 1rem 0;
  box-shadow: 0 1px 2px rgba(15,23,42,.04);
}
.card-h h3 { margin: 0 0 .35rem; font-size: 1.1rem; }
.card-h .code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.card-h .pct { margin-left: .5rem; font-size: .95rem; }
.card .meta { margin: 0; color: var(--muted); font-size: .88rem; }
.chart { margin: .9rem 0; }
.chart img {
  display: block; width: 100%; max-width: 640px; height: auto;
  border: 1px solid var(--line); border-radius: 8px; background: #fff;
}
.chart figcaption { font-size: .8rem; color: var(--muted); margin-top: .35rem; }
.biz, .analysis { margin: .65rem 0; }
.sources { margin: .35rem 0 0; padding-left: 1.1rem; }
.sources li { margin: .2rem 0; }
.day-list { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.day-list li {
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  margin: .45rem 0; padding: .7rem .9rem;
}
.legal p, .legal li { color: #1e293b; }
.legal ul { padding-left: 1.2rem; }
.contact { font-size: 1.1rem; font-weight: 600; }
.site-foot {
  border-top: 1px solid var(--line); padding: 1.25rem;
  text-align: center; color: var(--muted); font-size: .85rem; background: #fff;
}
.site-foot p { margin: 0 auto; max-width: 40rem; }
@media (max-width: 640px) {
  .tbl { font-size: .8rem; }
  .tbl th, .tbl td { padding: .4rem .35rem; }
  .day-nav { margin-left: 0; width: 100%; }
}