/* 极简阅读站样式：移动优先 */
:root{
  --bg:#f7f8fa; --card:#fff; --text:#1f2328; --muted:#8b949e;
  --brand:#f97316; --brand-dark:#ea580c; --line:#eceff3;
  --radius:12px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);
  font:16px/1.7 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
.muted{color:var(--muted);font-size:13px}

/* header */
.site-header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-header .wrap:first-child{display:flex;align-items:center;gap:16px;height:60px}
.logo{display:flex;align-items:center;gap:8px;flex:none}
.logo-mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--brand),#fb923c);
  color:#fff;font-weight:700;display:grid;place-items:center;font-size:17px}
.logo-text{font-weight:700;font-size:17px;letter-spacing:.5px}
.search{flex:1;display:flex;max-width:520px;background:var(--bg);border:1px solid var(--line);
  border-radius:999px;overflow:hidden}
.search input{flex:1;border:0;background:transparent;padding:9px 16px;font-size:15px;outline:none}
.search button{border:0;background:var(--brand);color:#fff;padding:0 20px;font-size:14px;cursor:pointer}
.nav{display:flex;gap:18px;font-size:15px;margin-left:auto}
.nav a{padding:6px 0;border-bottom:2px solid transparent}
.nav a.on{color:var(--brand);border-color:var(--brand)}
.cats{display:flex;gap:16px;overflow-x:auto;padding-bottom:10px;font-size:14px;color:#57606a;
  scrollbar-width:none}
.cats::-webkit-scrollbar{display:none}
.cats a{white-space:nowrap}
.cats em{font-style:normal;color:var(--muted);font-size:12px;margin-left:2px}
.cats a:hover{color:var(--brand)}

/* layout */
.main{padding:22px 16px 40px}
.section{margin-bottom:28px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:12px}
.section-head h2{font-size:19px;margin:0}
.section-head .more{font-size:13px;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px}

/* book grid */
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(132px,1fr))}
.book{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .15s,box-shadow .15s}
.book:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(15,23,42,.08)}
.book .cover{aspect-ratio:3/4;background:linear-gradient(160deg,#e9edf2,#dfe5ec);position:relative;overflow:hidden}
.book .cover img{width:100%;height:100%;object-fit:cover}
.book .cover .ph{position:absolute;inset:0;display:grid;place-items:center;font-size:22px;font-weight:700;color:#a8b3c0}
.book .meta{padding:9px 10px 11px}
.book .t{font-size:14px;font-weight:600;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden;min-height:38px}
.book .s{font-size:12px;color:var(--muted);margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* list */
.list{display:grid;gap:10px;grid-template-columns:1fr}
@media(min-width:720px){.list{grid-template-columns:1fr 1fr}}
.row{display:flex;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:12px;align-items:center}
.row .cover{width:56px;height:76px;flex:none;border-radius:8px;overflow:hidden;background:#e9edf2}
.row .cover img{width:100%;height:100%;object-fit:cover}
.row .info{min-width:0;flex:1}
.row .info .t{font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row .info .a{font-size:12.5px;color:var(--muted);margin-top:2px}
.row .info .x{font-size:12.5px;color:var(--muted);margin-top:4px;white-space:nowrap;overflow:hidden;
  text-overflow:ellipsis}
.row .ch{flex:none;font-size:12px;color:var(--brand);background:#fff5ed;border-radius:999px;padding:4px 10px}

/* book detail */
.book-head{display:flex;gap:18px}
.book-head .cover{width:132px;height:180px;flex:none;border-radius:10px;overflow:hidden;background:#e9edf2}
.book-head .cover img{width:100%;height:100%;object-fit:cover}
.book-head .info{min-width:0}
.book-head h1{font-size:22px;margin:0 0 8px}
.book-head .tags{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);margin-bottom:10px}
.book-head .tags span{background:var(--bg);border-radius:6px;padding:2px 8px}
.book-head .intro{font-size:14px;color:#4b5563;line-height:1.8;display:-webkit-box;-webkit-line-clamp:5;
  -webkit-box-orient:vertical;overflow:hidden}
.acts{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border-radius:999px;
  font-size:15px;font-weight:600;background:var(--brand);color:#fff;border:0;cursor:pointer}
.btn.ghost{background:var(--card);color:var(--text);border:1px solid var(--line)}

/* chapter list */
.chapters{margin-top:18px}
.chapters h2{font-size:16px;margin:0 0 12px;display:flex;justify-content:space-between;align-items:center}
.chapters .order{font-size:12px;color:var(--muted);background:var(--bg);border-radius:6px;padding:3px 9px;cursor:pointer}
.chlist{display:grid;grid-template-columns:1fr;max-height:520px;overflow:auto}
@media(min-width:640px){.chlist{grid-template-columns:1fr 1fr}}
@media(min-width:1000px){.chlist{grid-template-columns:1fr 1fr 1fr}}
.chlist a{display:block;font-size:14px;color:#374151;padding:9px 6px;border-bottom:1px dashed var(--line);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chlist a:hover{color:var(--brand)}

/* reader */
.reader{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px 28px}
.reader h1{font-size:21px;margin:0 0 6px}
.reader .crumb{font-size:13px;color:var(--muted);margin-bottom:18px}
.reader .content p{margin:0 0 14px;text-indent:2em;line-height:2;font-size:17px}
.reader .pager{display:flex;gap:10px;margin-top:26px}
.reader .pager a{flex:1;text-align:center;padding:12px;border:1px solid var(--line);border-radius:10px;font-size:15px}
.reader .pager a.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.reader .pager a.off{color:#c3cbd4;pointer-events:none}
.reader-tools{display:flex;gap:8px;justify-content:flex-end;margin-bottom:14px;font-size:13px}
.reader-tools button{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:5px 11px;cursor:pointer;color:#374151}
.reader-tools button:hover{color:var(--brand);border-color:#fbd0ac}

/* 阅读器主题 */
body.night{--bg:#15181d;--card:#1d2127;--text:#c9d1d9;--muted:#7d8590;--line:#2b3038}
body.sepia{--bg:#f3ece0;--card:#faf5ea;--text:#3d3226;--muted:#8a7a66;--line:#e5dbc9}

/* misc */
.empty{text-align:center;padding:60px 20px;color:var(--muted)}
.pager-num{display:flex;justify-content:center;gap:8px;margin-top:24px;font-size:14px}
.pager-num a,.pager-num span{padding:7px 13px;border-radius:8px;background:var(--card);border:1px solid var(--line)}
.pager-num .on{background:var(--brand);color:#fff;border-color:var(--brand)}
.site-footer{padding:28px 16px 40px;text-align:center;color:var(--muted);font-size:13px;border-top:1px solid var(--line);margin-top:20px}
.site-footer p{margin:4px 0}
@media(max-width:640px){
  .site-header .wrap:first-child{height:auto;flex-wrap:wrap;padding-top:10px;padding-bottom:8px;gap:10px}
  .search{order:3;max-width:none;width:100%}
  .nav{margin-left:auto}
  .book-head .cover{width:104px;height:142px}
  .book-head h1{font-size:19px}
  .reader{padding:18px 15px 22px}
  .reader .content p{font-size:16.5px}
}