:root{--bg:#f4f7f6;--card:#fff;--text:#1d2b2a;--muted:#5b6b68;--accent:#e57399;--line:#e6ecea}
@media (prefers-color-scheme:dark){:root{--bg:#111615;--card:#1a2120;--text:#e8edeb;--muted:#9aa6a3;--line:#2a3432}}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,"PingFang TC","Noto Sans TC",system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
.wrap{max-width:760px;margin:0 auto;padding:40px 20px 64px}
header{display:flex;align-items:center;gap:14px;margin-bottom:28px}header img{width:56px;height:56px;border-radius:14px}
header a{color:var(--text);text-decoration:none;font-weight:800;font-size:22px}
nav a{color:var(--muted);text-decoration:none;margin-right:16px;font-size:14px}nav a:hover{color:var(--text)}
h1{font-size:34px;line-height:1.25;margin:8px 0 12px}h2{font-size:20px;margin:36px 0 8px}h3{font-size:16px;margin:24px 0 6px}
p,li{color:var(--muted)}p.lead{font-size:18px;color:var(--text)}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px 24px;margin:16px 0}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media(max-width:560px){.grid{grid-template-columns:1fr}}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;padding:12px 20px;border-radius:999px;font-weight:700}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
footer{margin-top:48px;font-size:13px;color:var(--muted)}footer a{color:var(--muted)}
code{background:var(--card);border:1px solid var(--line);padding:1px 6px;border-radius:6px;font-size:13px}
.hero{text-align:center;padding:24px 0 8px}.hero img{width:120px;height:120px;border-radius:28px}