:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --primary: #1d4ed8;
  --important-bg: #eef4ff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 24px;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f8fbff 0%, var(--bg) 100%);
  line-height: 1.75;
}
.container {
  max-width: 980px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}
.doc-header h1 {
  margin: 0 0 8px;
  font-size: 30px;
  line-height: 1.3;
}
.meta {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.quick-nav {
  margin: 18px 0 8px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fafcff;
}
.quick-nav ul {
  margin: 8px 0 0;
  padding-left: 20px;
}
.quick-nav a {
  color: var(--primary);
  text-decoration: none;
}
.quick-nav a:hover { text-decoration: underline; }
h2 {
  margin: 28px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  font-size: 22px;
}
h3 {
  margin: 20px 0 8px;
  font-size: 18px;
}
p { margin: 8px 0; }
ol, ul {
  margin: 8px 0 12px;
  padding-left: 24px;
}
code {
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  padding: 1px 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}
.important {
  margin: 14px 0;
  padding: 12px 14px;
  border-left: 4px solid #3b82f6;
  background: var(--important-bg);
  border-radius: 8px;
}
.company-info {
  margin: 12px 0;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fcfdff;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 0.95em;
}
th, td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}
th {
  background: #f3f6fc;
  font-weight: 600;
  white-space: nowrap;
}
tbody tr:nth-child(even) td { background: #fafcff; }
table a { color: var(--primary); text-decoration: none; }
table a:hover { text-decoration: underline; }
.footer-links {
  margin-top: 28px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.footer-links a {
  margin-right: 14px;
  color: var(--primary);
  text-decoration: none;
}
.footer-links a:hover { text-decoration: underline; }
@media (max-width: 768px) {
  body { padding: 12px; }
  .container { padding: 18px; border-radius: 12px; }
  .doc-header h1 { font-size: 24px; }
  h2 { font-size: 20px; }
  h3 { font-size: 17px; }
  table, thead, tbody, th, td, tr { display: block; }
  thead { display: none; }
  td { border: none; border-bottom: 1px solid var(--border); padding: 6px 8px; }
  tbody tr { border: 1px solid var(--border); border-radius: 8px; margin-bottom: 10px; padding: 4px; }
  th { white-space: normal; }
}