:root {
  --bg: #fbf6ee;
  --ink: #2b2226;
  --muted: #6d6066;
  --tomato: #e8573d;
  --card: #ffffff;
  --line: #eadfd2;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1719;
    --ink: #f3ebe3;
    --muted: #b3a6a0;
    --tomato: #ff7a5f;
    --card: #262022;
    --line: #3a3033;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Segoe UI", sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 48px 16px 64px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 32px; }
.mark {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--tomato); position: relative; flex: none;
}
.mark::after {
  content: ""; position: absolute; width: 10px; height: 8px; border-radius: 3px;
  background: #5a9b4b; top: -4px; left: 17px;
}
.brand { font-weight: 700; font-size: 20px; }
.brand small { display: block; font-weight: 400; font-size: 13px; color: var(--muted); }
h1 { font-size: 30px; line-height: 1.3; margin: 0 0 8px; }
h2 { font-size: 19px; margin: 36px 0 8px; }
p, li { color: var(--ink); }
.lead { color: var(--muted); font-size: 17px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; margin: 20px 0; }
a { color: var(--tomato); }
ul { padding-left: 22px; }
nav { margin-top: 48px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
nav a { margin-right: 16px; }
.en { color: var(--muted); font-size: 15px; }