/* 示例样式 */
:root{--bg:#f6f7fb;--card:#fff;--accent:#0066cc}
body{font-family:Segoe UI, Roboto, Arial, sans-serif;background:var(--bg);color:#222;margin:0}
.container{max-width:900px;margin:48px auto;padding:20px;background:var(--card);border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,0.06)}
h1{color:var(--accent)}
pre{background:#f0f3ff;padding:12px;border-radius:6px;overflow:auto}
footer{margin-top:24px;font-size:0.9rem;color:#666}