*{box-sizing:border-box;margin:0;padding:0}html{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f8f8f6;color:#1a1a1a}body{min-height:100vh}a{text-decoration:none;color:inherit}.container{max-width:680px;margin:0 auto;padding:0 16px}.ad-slot{background:#f0f0ee;border:1px dashed #ccc;border-radius:8px;height:60px;display:flex;align-items:center;justify-content:center;font-size:11px;color:#999;margin:16px 0}