:root{
  --ink:#1b2230; --navy:#14233b; --paper:#f6f3ec; --card:#fffdf8;
  --gold:#b08d57; --gold-d:#8c6f43; --muted:#6b7280; --line:#e4ddcf;
  --serif:"Noto Serif SC","Songti SC","SimSun",Georgia,"Times New Roman",serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);
  line-height:1.75;font-size:17px;-webkit-text-size-adjust:100%;}
a{color:var(--navy);text-decoration:none;}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px;}
img{max-width:100%;}
/* header */
.site-header{background:var(--navy);color:#f3ede0;border-bottom:3px solid var(--gold);}
.site-header .nav{max-width:1080px;margin:0 auto;padding:14px 20px;display:flex;
  align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;}
.brand{font-size:24px;font-weight:700;letter-spacing:3px;color:#f3ede0;}
.brand::before{content:"❖ ";color:var(--gold);}
.site-header nav a{color:#d9cfb8;margin-left:18px;font-size:16px;}
.site-header nav a:hover{color:var(--gold);}
/* footer */
.site-footer{background:var(--navy);color:#cfc6b2;margin-top:56px;padding:34px 0;
  border-top:3px solid var(--gold);font-size:14px;line-height:1.9;}
.site-footer a{color:var(--gold);}
.site-footer .muted{color:#9a927f;font-size:13px;margin-top:8px;}
/* home hero */
.hero{background:linear-gradient(135deg,#14233b,#22344f);color:#f3ede0;
  padding:60px 20px;text-align:center;}
.hero h1{font-size:40px;margin:0 0 10px;letter-spacing:4px;}
.hero h1 .em{color:var(--gold);}
.hero .tag{font-size:17px;color:#cdbfa3;max-width:680px;margin:0 auto 22px;}
.hero .stats{display:inline-flex;gap:26px;flex-wrap:wrap;justify-content:center;
  margin-top:8px;color:#e9e0cb;}
.hero .stats b{color:var(--gold);font-size:22px;display:block;}
.searchbar{max-width:560px;margin:22px auto 0;display:flex;}
.searchbar input{flex:1;padding:13px 16px;border:1px solid var(--gold);border-right:none;
  border-radius:8px 0 0 8px;background:#0f1b2e;color:#fff;font-size:16px;font-family:var(--serif);}
.searchbar button{padding:13px 22px;border:1px solid var(--gold);background:var(--gold);
  color:#1b1408;border-radius:0 8px 8px 0;font-weight:700;cursor:pointer;font-size:16px;}
/* sections */
.section{max-width:1080px;margin:46px auto;padding:0 20px;}
.section h2{font-size:24px;border-left:5px solid var(--gold);padding-left:12px;margin:0 0 20px;letter-spacing:2px;}
/* category chips */
.chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{display:inline-block;padding:8px 16px;border:1px solid var(--line);border-radius:30px;
  background:var(--card);color:var(--navy);font-size:15px;}
.chip b{color:var(--gold-d);margin-left:6px;}
.chip:hover{border-color:var(--gold);}
/* book grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px;}
.book-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;
  display:flex;flex-direction:column;transition:.18s;}
.book-card:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(20,35,59,.12);border-color:var(--gold);}
.book-card .cat{font-size:12px;color:var(--gold-d);letter-spacing:1px;}
.book-card h3{font-size:18px;margin:8px 0 6px;line-height:1.45;}
.book-card .ex{font-size:13.5px;color:var(--muted);flex:1;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.book-card .more{margin-top:12px;color:var(--navy);font-size:14px;border-top:1px dashed var(--line);padding-top:10px;}
/* reading page */
.book{max-width:760px;margin:40px auto;padding:0 20px;}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:14px;}
.crumbs a{color:var(--gold-d);}
.book h1{font-size:30px;line-height:1.4;margin:0 0 8px;letter-spacing:1px;}
.book .meta{color:var(--muted);font-size:14.5px;margin-bottom:6px;}
.rule{border:none;border-top:2px solid var(--gold);width:80px;margin:18px 0 26px;}
.content{font-size:18px;line-height:2;}
.content p{margin:0 0 1.1em;text-indent:2em;}
.content h1,.content h2,.content h3{text-indent:0;margin:1.6em 0 .6em;line-height:1.4;
  border-left:4px solid var(--gold);padding-left:10px;}
.content blockquote{margin:1.2em 0;padding:10px 18px;background:#efe9dc;border-left:4px solid var(--gold-d);
  color:#4a4334;font-style:normal;}
.content img{max-width:100%;}
.pager{display:flex;justify-content:space-between;gap:14px;margin:44px 0 10px;
  border-top:1px solid var(--line);padding-top:22px;flex-wrap:wrap;}
.pager a{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 16px;
  font-size:14.5px;max-width:48%;}
.pager a:hover{border-color:var(--gold);}
.pager .lab{display:block;font-size:12px;color:var(--muted);}
/* library filter */
.toolbar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:30px auto;max-width:1080px;padding:0 20px;}
.toolbar input{flex:1;min-width:220px;padding:12px 16px;border:1px solid var(--line);border-radius:8px;
  font-size:16px;font-family:var(--serif);background:var(--card);}
.toolbar select{padding:12px 14px;border:1px solid var(--line);border-radius:8px;font-size:15px;
  font-family:var(--serif);background:var(--card);}
.count{text-align:center;color:var(--muted);font-size:14px;margin-top:8px;}
/* author page */
.author{max-width:760px;margin:40px auto;padding:0 20px;}
.author h1{font-size:30px;letter-spacing:2px;}
.author .lead{font-size:18px;color:#3a4250;}
.author .facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin:26px 0;}
.author .facts div{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;}
.author .facts b{color:var(--gold-d);display:block;font-size:13px;}
/* 404 */
.center{max-width:600px;margin:80px auto;text-align:center;}
.center h1{font-size:64px;color:var(--gold);margin:0;}
@media(max-width:600px){
  .hero h1{font-size:30px;} body{font-size:16px;}
  .book .content{font-size:17px;}
}