body{font-family:"Microsoft YaHei",sans-serif;margin:0;background:#f5f5f5;color:#333}
.yg-header{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:#2c3e50;color:#fff}
.yg-header a{color:#fff;margin-left:12px;text-decoration:none}
.yg-section{max-width:1200px;margin:16px auto;padding:16px;background:#fff;border-radius:8px}
.yg-book-list{list-style:none;padding:0;margin:0}
.yg-book-list li{padding:8px 0;border-bottom:1px solid #eee}
.yg-book-list a{text-decoration:none;color:#2980b9}