:root {
  --bg: #f4f0e7;
  --card: #ffffff;
  --ink: #2a2540;
  --muted: #6b6478;
  --accent: #6c5bd1;
  --accent-soft: #efeafc;
  --line: #e7e1d5;
  --radius: 20px;
  --maxw: 760px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", "PingFang TC", "Noto Sans TC", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 32px 22px 72px;
}

/* Brand header */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}
.brand .paw {
  width: 30px; height: 30px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  border-radius: 9px;
  color: var(--accent);
  font-size: 17px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 34px;
}
.back {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
}
.back:hover { text-decoration: underline; }

/* Language switcher */
.langnav { font-size: 14px; color: var(--muted); display: flex; gap: 8px; align-items: center; }
.langnav a { color: var(--accent); text-decoration: none; font-weight: 600; }
.langnav a:hover { text-decoration: underline; }
.langnav a.active { color: var(--ink); text-decoration: none; cursor: default; }
.langnav .sep { color: var(--line); }

/* Landing language columns */
.langcol-title {
  font-size: 13px; font-weight: 700; letter-spacing: .04em;
  text-transform: uppercase; color: var(--muted); margin: 30px 0 10px;
}

/* Titles */
h1 {
  font-family: Georgia, "Times New Roman", "Songti TC", serif;
  font-size: clamp(30px, 6vw, 42px);
  line-height: 1.15;
  margin: 6px 0 6px;
  letter-spacing: -0.015em;
}
.updated {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 28px;
}
.lede {
  font-size: 18px;
  color: var(--muted);
  margin: 0 0 30px;
}

h2 {
  font-size: 20px;
  margin: 34px 0 10px;
  letter-spacing: -0.01em;
}

p { margin: 0 0 16px; }
a { color: var(--accent); }

/* Card */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 26px 8px;
  box-shadow: 0 1px 0 rgba(42, 37, 64, 0.02);
}

/* Landing link cards */
.grid { display: grid; gap: 14px; margin-top: 8px; }
.linkcard {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  text-decoration: none;
  color: var(--ink);
  transition: transform .12s ease, border-color .12s ease;
}
.linkcard:hover { transform: translateY(-1px); border-color: var(--accent); }
.linkcard .t { display: block; font-weight: 700; font-size: 17px; }
.linkcard .d { display: block; color: var(--muted); font-size: 14px; margin-top: 3px; }
.linkcard .arrow { color: var(--accent); font-size: 20px; }

/* Callout */
.note {
  background: var(--accent-soft);
  border-radius: 14px;
  padding: 16px 18px;
  color: #40357a;
  font-size: 15px;
  margin: 20px 0;
}

.footer {
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
.footer a { color: var(--accent); }

code, .mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: rgba(108, 91, 209, 0.08);
  padding: 1px 6px;
  border-radius: 6px;
  font-size: 0.92em;
}