:root { --ink:#1c1f3b; --paper:#f7f4ee; --gold:#ffc94d; --muted:#5d5a6e; --line:#e4dfd6; }
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--paper); color: var(--ink); }
body { font: 17px/1.7 -apple-system, "PingFang TC", "Noto Sans TC", system-ui, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 48px 20px 80px; }
header { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; }
header img { width: 64px; height: 64px; border-radius: 15px; box-shadow: 0 4px 14px rgba(28,31,59,.18); }
header a { color: inherit; text-decoration: none; }
h1 { font-size: 30px; line-height: 1.25; margin: 0; letter-spacing: -0.01em; }
h2 { font-size: 21px; margin: 40px 0 8px; }
p, li { color: var(--ink); }
.muted { color: var(--muted); }
nav { display: flex; gap: 18px; margin: 4px 0 0; font-size: 15px; }
nav a { color: var(--muted); }
section + section { border-top: 1px solid var(--line); margin-top: 48px; padding-top: 8px; }
a { color: #3a5bd5; }
footer { margin-top: 64px; font-size: 14px; color: var(--muted); }