:root {
  --bg: #f6f4ef;
  --panel: #fffdf8;
  --ink: #1c1a16;
  --muted: #5c574e;
  --line: #d9d3c6;
  --accent: #6b3f12;
  --link: #1f4b73;
  --code-bg: #efeae0;
  --nav-w: 270px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  color: var(--ink);
  background: var(--bg);
  font: 16px/1.6 "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.layout {
  display: grid;
  grid-template-columns: var(--nav-w) 1fr;
  min-height: 100vh;
}

nav.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  background: #2b2722;
  color: #efe8dc;
  padding: 1.1rem 0.9rem 2rem;
}

nav.sidebar a { color: #d7cbb8; }
nav.sidebar a:hover { color: #fff; }
nav.sidebar a.current {
  color: #fff;
  font-weight: 600;
}

nav.sidebar h1 {
  font-size: 0.95rem;
  margin: 0 0 0.3rem;
  font-weight: 650;
}
nav.sidebar .tag {
  font-size: 0.75rem;
  color: #b7ab98;
  margin-bottom: 1rem;
}
nav.sidebar h2 {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9d917e;
  margin: 1rem 0 0.35rem;
}
nav.sidebar ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
nav.sidebar li { margin: 0.12rem 0; }
nav.sidebar li a { font-size: 0.82rem; }

main {
  padding: 1.6rem 2rem 3.5rem;
  max-width: 920px;
}

header.page h1 {
  margin: 0 0 0.35rem;
  font-size: 1.7rem;
}
.role {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  padding: 0.7rem 0.9rem;
  margin: 0.8rem 0 1.2rem;
}

h2 {
  margin-top: 1.8rem;
  font-size: 1.15rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.25rem;
}
h3 { font-size: 1rem; margin-top: 1.2rem; }

code, .path, pre {
  font-family: Consolas, "Cascadia Mono", monospace;
  font-size: 0.86em;
}
code, .path {
  background: var(--code-bg);
  padding: 0.05em 0.35em;
  border-radius: 3px;
}
pre {
  background: #2b2722;
  color: #efe8dc;
  padding: 0.9rem 1rem;
  overflow: auto;
  border-radius: 4px;
}
pre code { background: none; color: inherit; padding: 0; }

table {
  border-collapse: collapse;
  width: 100%;
  background: var(--panel);
  margin: 0.7rem 0 1rem;
  font-size: 0.95rem;
}
th, td {
  border: 1px solid var(--line);
  padding: 0.45rem 0.55rem;
  text-align: left;
  vertical-align: top;
}
th { background: #efe7d8; }

ul.outline > li { margin: 0.35rem 0; }
.next {
  margin-top: 2rem;
  padding: 0.8rem 1rem;
  background: var(--panel);
  border: 1px solid var(--line);
}
.badge {
  display: inline-block;
  font-size: 0.72rem;
  border: 1px solid var(--line);
  padding: 0 0.35rem;
  border-radius: 3px;
  color: var(--muted);
  margin-right: 0.25rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.7rem;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 0.75rem 0.85rem;
}
.card h3 { margin: 0 0 0.35rem; }

@media print {
  nav.sidebar { display: none; }
  .layout { display: block; }
  a { color: inherit; text-decoration: underline; }
}

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  nav.sidebar {
    position: relative;
    height: auto;
    max-height: 40vh;
  }
}