:root { color-scheme: light dark; --accent: #4F56F2; }
body { font-family: -apple-system, "PingFang TC", "Noto Sans TC", sans-serif; max-width: 760px; margin: 0 auto; padding: 32px 20px 64px; line-height: 1.7; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; }
header img { width: 64px; height: 64px; border-radius: 15px; }
header h1 { margin: 0; font-size: 1.7rem; }
nav a { margin-right: 16px; color: var(--accent); text-decoration: none; font-weight: 600; }
h2 { margin-top: 32px; font-size: 1.2rem; }
.muted { color: #888; font-size: .9rem; }
hr { border: none; border-top: 1px solid #8884; margin: 32px 0; }