:root {
  --bg: #fbf3ec;
  --card: #ffffff;
  --text: #20201c;
  --text-secondary: #5b4a3f;
  --text-muted: #9c8b7d;
  --brand: #ff5a36;
  --brand-soft: #fdeadf;
  --border: #f0e0d2;
  --callout: #fff1e8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

.wrap {
  max-width: 700px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

header.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.brand {
  font-weight: 800;
  font-size: 18px;
  color: var(--brand);
  text-decoration: none;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  margin-left: 18px;
}

nav a:hover { color: var(--brand); }

h1 {
  font-size: 28px;
  margin: 0 0 6px;
}

.updated {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.intro {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.callout {
  background: var(--callout);
  border-radius: 12px;
  padding: 16px 18px;
  font-size: 14.5px;
  margin-bottom: 28px;
}

section.doc-section {
  margin-bottom: 28px;
}

section.doc-section h2 {
  font-size: 18px;
  color: var(--brand);
  margin: 0 0 8px;
}

section.doc-section p {
  font-size: 15px;
  color: var(--text);
  margin: 0 0 10px;
}

.item-list {
  margin-top: 8px;
  border-top: 1px solid var(--border);
}

.item {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.item .label {
  font-weight: 700;
  font-size: 14.5px;
  display: block;
  margin-bottom: 2px;
}

.item .detail {
  font-size: 13.5px;
  color: var(--text-secondary);
}

footer {
  margin-top: 40px;
  font-size: 13px;
  color: var(--text-muted);
}

footer a { color: var(--brand); }

.card-list {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.card-link {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 20px;
  text-decoration: none;
  color: var(--text);
}

.card-link .title {
  font-weight: 700;
  color: var(--brand);
  font-size: 16px;
  margin-bottom: 4px;
}

.card-link .desc {
  font-size: 13.5px;
  color: var(--text-secondary);
}