*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:#111;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;font-size:18px;line-height:1.6}
a{color:#111;text-decoration:underline;text-underline-offset:3px}
a:hover{text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 28px}
.header{padding:34px 0;border-bottom:1px solid #ddd;background:#fff}
.navrow{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-size:24px;text-decoration:none;font-weight:500}
.menu{display:flex;gap:22px;align-items:center;flex-wrap:wrap}
.menu a{text-decoration:none;font-size:15px}
.hero{padding:70px 0 46px;border-bottom:1px solid #eee}
.hero h1{font-size:clamp(42px,7vw,92px);line-height:1.08;font-weight:400;margin:0 0 22px}
.hero p{max-width:760px;font-size:20px}
.grid{display:grid;grid-template-columns:2fr 1fr;gap:42px;padding:44px 0}
.content{max-width:780px}
.content h2{font-size:34px;font-weight:400;margin-top:34px}
.card-list{display:grid;gap:18px}
.book-card{border:1px solid #ddd;padding:22px;background:#fafafa}
.book-card h2,.book-card h3{margin:0 0 8px;font-weight:400}
.meta{font-size:14px;color:#555}
.sidebar{border-left:1px solid #eee;padding-left:28px}
.sidebar h2{font-size:24px;font-weight:400}
.cat-list{list-style:none;margin:0;padding:0}
.cat-list li{border-bottom:1px solid #eee;padding:10px 0}
.footer{border-top:1px solid #ddd;padding:40px 0;margin-top:50px;color:#555}
.notice{background:#fff8d7;border:1px solid #eadc85;padding:16px;margin:22px 0;font-size:15px}
.search{display:flex;gap:8px;margin:20px 0}
.search input{flex:1;padding:12px;border:1px solid #ccc;font-size:16px}
.search button{padding:12px 18px;border:1px solid #111;background:#111;color:#fff}
@media(max-width:850px){.navrow,.grid{display:block}.menu{margin-top:18px}.sidebar{border-left:0;padding-left:0}.hero h1{font-size:44px}}