:root {
  color-scheme: light;
  --bg: #f7fafc;
  --paper: #ffffff;
  --ink: #172033;
  --muted: #5c6b82;
  --line: #dce6f2;
  --accent: #1f7a4d;
  --accent-soft: #e8f6ee;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.8;
}

body {
  padding: 24px 16px 48px;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
}

h1,
h2,
h3 {
  line-height: 1.45;
}

h1 {
  margin: 0 0 16px;
  text-align: center;
  font-size: 30px;
}

h2 {
  margin: 32px 0 12px;
  font-size: 22px;
}

h3 {
  margin: 22px 0 10px;
  font-size: 18px;
}

p {
  margin: 0 0 12px;
}

a {
  color: var(--accent);
}

strong {
  color: #0f172a;
}

table {
  width: 100%;
  margin: 12px 0 20px;
  border-collapse: collapse;
  font-size: 15px;
}

th,
td {
  padding: 10px 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: #f1f7f3;
}

ul,
ol {
  margin: 0 0 14px 22px;
  padding: 0;
}

li {
  margin: 4px 0;
}

.meta {
  margin: 0 auto 24px;
  padding: 14px 16px;
  border: 1px solid #c9ead8;
  border-radius: 10px;
  background: var(--accent-soft);
  color: #27563d;
}

.notice {
  padding: 14px 16px;
  border: 1px solid #f0d8a8;
  border-radius: 10px;
  background: #fff8e8;
  color: #705212;
}

.doc-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.doc-card {
  display: block;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfdff;
  text-decoration: none;
}

.doc-card strong {
  display: block;
  margin-bottom: 6px;
  color: var(--ink);
  font-size: 18px;
}

.doc-card span {
  color: var(--muted);
}

.footer {
  margin-top: 36px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  body {
    padding: 0;
  }

  main {
    border-width: 0;
    border-radius: 0;
    padding: 24px 16px 36px;
  }

  h1 {
    font-size: 26px;
  }

  table {
    display: block;
    overflow-x: auto;
  }
}