:root {
  --bg: #FAFBFD;
  --bg2: #F0F2F7;
  --ink: #1a1a2e;
  --muted: #6b7280;
  --rule: #e2e5ec;
  --accent: #0f52ba;
  --accent2: #e63946;
  --accent3: #2d6a4f;
  --gold: #c7922a;
  --radius: 8px;
  --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --max: 960px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  padding: 2rem 1rem;
}
.container { max-width: var(--max); margin: 0 auto; }
h1 { font-size: 1.8rem; font-weight: 700; margin-bottom: 0.5rem; }
h2 { font-size: 1.3rem; font-weight: 700; color: var(--accent); margin: 1.5rem 0 0.8rem; }
h3 { font-size: 1.05rem; font-weight: 600; margin: 1rem 0 0.5rem; }
p { margin-bottom: 0.8rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.card {
  background: var(--bg2);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  margin-bottom: 1rem;
}
.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
}
.tag-eagle { background: #d1fae5; color: #065f46; }
.tag-pig { background: #fee2e2; color: #991b1b; }
.tag-warn { background: #fef3c7; color: #92400e; }
.btn {
  display: inline-block;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity 0.2s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-secondary { background: var(--bg2); color: var(--ink); border: 1px solid var(--rule); }
.btn:hover { opacity: 0.85; }

@media (max-width: 640px) {
  body { padding: 1rem 0.5rem; }
  h1 { font-size: 1.4rem; }
}