:root {
  --bg: #ffffff;
  --surface: #f7f9fc;
  --surface2: #eef2f7;
  --border: #dde3ea;
  --text: #1d2129;
  --muted: #5f6b7a;
  --accent: #1d4ed8;
  --accent2: #15803d;
  --warn: #b45309;
  --danger: #b91c1c;
  --radius: 10px;
  --font: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "SF Mono", "Consolas", "Menlo", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 15px;
}

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }

.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  padding: 2.5rem 0 1.75rem;
}
.eyebrow {
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 0.5rem;
}
.site-header h1 {
  font-size: clamp(1.45rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 1.25rem;
}
.meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1rem;
}
.meta-bar strong { color: var(--text); font-weight: 600; }
.disclaimer {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--warn);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0;
}
.disclaimer strong { color: var(--warn); }

.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 1rem 1.25rem !important;
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.toc a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.82rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}
.toc a:hover { border-color: var(--accent); background: var(--surface2); }

main { padding: 1.5rem 0 3rem; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem 1.6rem;
  margin-bottom: 1.25rem;
}
.card h2 {
  margin: 0 0 0.85rem;
  font-size: 1.2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.55rem;
}
.card h3 {
  margin: 0.2rem 0 0.5rem;
  font-size: 1.02rem;
  color: var(--accent);
}
.note, .fx-note {
  font-size: 0.86rem;
  color: var(--muted);
  margin: 0 0 1rem;
}
.fx-note { margin-top: 0.85rem; margin-bottom: 0; }

.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  min-width: 720px;
}
th, td {
  border: 1px solid var(--border);
  padding: 0.55rem 0.65rem;
  text-align: left;
  vertical-align: top;
}
th {
  background: var(--surface2);
  color: var(--text);
  font-weight: 600;
  white-space: nowrap;
}
tbody tr:nth-child(even) { background: #f7f9fc; }
td strong { color: #15803d; font-weight: 650; }

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
.grid-2 article {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.9rem 1rem;
}
.grid-2 ul, .card > ul { margin: 0; padding-left: 1.15rem; }
.grid-2 li, .card > ul > li { margin-bottom: 0.35rem; color: var(--muted); }
.grid-2 li strong, .card li strong { color: var(--text); }

.callout {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  margin-bottom: 1rem;
}
.callout p { margin: 0; color: var(--muted); }
.callout strong { color: var(--text); }

.gaps ol { margin: 0; padding-left: 1.25rem; color: var(--muted); }
.gaps li { margin-bottom: 0.45rem; }
.gaps li strong { color: var(--warn); }

.sources { margin: 0; padding-left: 1.15rem; color: var(--muted); font-size: 0.88rem; }
.sources li { margin-bottom: 0.35rem; }
.sources em { color: var(--text); font-style: normal; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.82rem;
}
.site-footer p { margin: 0.25rem 0; }

@media print {
  :root {
    --bg: #fff;
    --surface: #fff;
    --surface2: #f3f5f8;
    --border: #ccc;
    --text: #111;
    --muted: #333;
    --accent: #0645ad;
  }
  body { background: #fff; color: #111; font-size: 11pt; }
  .toc { position: static; background: none; backdrop-filter: none; }
  .toc a { border-color: #999; color: #0645ad; }
  .site-header { background: none; border-bottom: 1px solid #999; }
  .card, .grid-2 article, .disclaimer, .callout {
    break-inside: avoid;
    box-shadow: none;
  }
  a { color: #0645ad; }
}

/* calendar section */
table.cal { min-width: 1080px; }
table.cal small { color: var(--muted); font-size: 0.76rem; line-height: 1.4; }
table.cal em { color: var(--warn); font-style: normal; }
.st { display: inline-block; padding: 0.12rem 0.5rem; border-radius: 999px; font-size: 0.76rem; font-weight: 600; white-space: nowrap; margin-bottom: 0.2rem; }
.st-q { background: #fff7e6; color: var(--warn); border: 1px solid #f0c36d; }
.st-a { background: #e8f5ee; color: #15803d; border: 1px solid rgba(21,128,61,0.45); }
.st-n { background: #f1f3f6; color: var(--muted); border: 1px solid var(--border); }
@media print { .st { border: 1px solid #666; color: #111; background: none; } table.cal { min-width: 0; font-size: 8pt; } }