/* ============================================================
   推书阁 · 设计系统
   世界：藏书楼 / 纸上印刷 / 藏书章
   材质：纸白底、墨黑字、发丝线、印章红
   签名元素：红色藏书印（唯一强调色，只用于品牌与主行动）
   ============================================================ */
:root{
  --ink:#141414;            /* 墨黑 */
  --ink-soft:#3c3c3c;       /* 次墨 */
  --gray:#6f6f6f;           /* 灰 */
  --gray-light:#a8a8a8;     /* 浅灰 */
  --paper:#ffffff;          /* 纸白 */
  --paper-dim:#f6f5f2;      /* 旧纸灰 */
  --line:#e7e5e0;           /* 发丝线 */
  --line-dark:#d6d4ce;
  --seal:#b3261e;           /* 印章红（唯一强调色） */
  --seal-dark:#8f1d18;
  --serif:"Noto Serif SC","Songti SC","SimSun","STSong",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --maxw:1200px;
  --radius:2px;
  --shadow:0 1px 2px rgba(20,20,20,.04),0 8px 24px rgba(20,20,20,.06);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--sans);
  font-weight:400;
  color:var(--ink);
  background:var(--paper);
  line-height:1.75;
  font-size:16px;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
ul,ol{list-style:none}
::selection{background:var(--ink);color:#fff}
:focus-visible{outline:2px solid var(--seal);outline-offset:2px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.serif{font-family:var(--serif)}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 眉标 / 章节 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.35em;text-transform:uppercase;color:var(--gray);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--ink)}
.section{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.section-title{font-family:var(--serif);font-weight:900;font-size:1.9rem;line-height:1.3;letter-spacing:.02em}
.section-sub{color:var(--gray);font-size:.92rem;margin-top:6px}
.link-more{font-size:.88rem;color:var(--ink);border-bottom:1px solid var(--ink);padding-bottom:2px;white-space:nowrap;transition:color .2s,border-color .2s}
.link-more:hover{color:var(--seal);border-color:var(--seal)}

/* ---------- 印章（签名元素） ---------- */
.seal{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;flex:0 0 46px;
  background:var(--seal);color:#fff;
  font-family:var(--serif);font-weight:900;font-size:1.35rem;
  border:2px solid var(--seal);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.55);
  border-radius:var(--radius);
  user-select:none;
}
.seal--sm{width:34px;height:34px;flex-basis:34px;font-size:1rem;border-width:1.5px}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-name{font-family:var(--serif);font-weight:900;font-size:1.35rem;letter-spacing:.1em}
.brand-name em{font-style:normal;color:var(--gray);font-weight:400;font-size:.72rem;letter-spacing:.2em;display:block;line-height:1.2}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.main-nav a{
  padding:8px 16px;font-size:.95rem;color:var(--ink-soft);
  border-radius:var(--radius);transition:background .2s,color .2s;
}
.main-nav a:hover{background:var(--paper-dim);color:var(--ink)}
.main-nav a.active{color:var(--ink);font-weight:700;background:var(--paper-dim)}
.header-search{display:flex;align-items:center;gap:8px;margin-left:auto;border:1px solid var(--line-dark);border-radius:var(--radius);padding:0 12px;height:40px;width:230px;transition:border-color .2s,box-shadow .2s}
.header-search:focus-within{border-color:var(--ink);box-shadow:0 0 0 2px rgba(20,20,20,.06)}
.header-search input{flex:1;border:none;outline:none;font-size:.92rem;background:transparent;color:var(--ink);min-width:0}
.header-search button{display:flex;align-items:center;justify-content:center;color:var(--gray);padding:4px}
.header-search button:hover{color:var(--ink)}
.menu-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;margin-left:auto;border:1px solid var(--line-dark);border-radius:var(--radius)}

/* 移动端抽屉导航 */
.drawer{
  position:fixed;inset:0;z-index:70;background:rgba(20,20,20,.45);
  opacity:0;pointer-events:none;transition:opacity .25s;
}
.drawer.open{opacity:1;pointer-events:auto}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:78%;max-width:320px;
  background:#fff;padding:24px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform .28s ease;
  box-shadow:var(--shadow);
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-close{align-self:flex-end;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line-dark);border-radius:var(--radius);margin-bottom:12px}
.drawer-panel a{padding:14px 10px;font-size:1.05rem;border-bottom:1px solid var(--line);font-weight:500}
.drawer-panel a.active{color:var(--seal)}
.drawer-search{display:flex;border:1px solid var(--line-dark);border-radius:var(--radius);padding:10px 12px;margin:14px 0}
.drawer-search input{flex:1;border:none;outline:none;font-size:1rem;background:transparent;min-width:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;font-size:.98rem;font-weight:600;
  border-radius:var(--radius);transition:all .22s;
}
.btn--seal{background:var(--seal);color:#fff}
.btn--seal:hover{background:var(--seal-dark);transform:translateY(-1px);box-shadow:0 6px 18px rgba(179,38,30,.28)}
.btn--ghost{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--block{width:100%}

/* ---------- 三栏布局：左分类标签 / 中图书滚动 / 右广告 ----------
   文档流布局：页面整体滚动，左右侧栏 sticky 跟随；页脚正常显示在底部 */
.layout-3{
  position:static;
  display:grid;grid-template-columns:210px minmax(0,1fr);gap:30px;
  padding:26px 24px 0;
}
.side-left{position:sticky;top:92px;align-self:start;display:flex;flex-direction:column;gap:24px;max-height:calc(100vh - 116px);overflow-y:auto;padding-right:6px;scrollbar-width:thin}
.side-block{border:1px solid var(--line);background:#fff;border-radius:var(--radius);flex:0 0 auto}
.side-title{
  font-size:.78rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gray);
  padding:14px 16px 10px;border-bottom:1px solid var(--line);font-weight:700;
}
.side-list li a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 16px;font-size:.88rem;color:var(--ink-soft);transition:all .18s;
  border-bottom:1px solid var(--line);
}
.side-list li:last-child a{border-bottom:none}
.side-list li a:hover{background:var(--paper-dim);color:var(--ink);padding-left:20px}
.side-list li a.active{color:var(--seal);font-weight:700;background:var(--paper-dim)}
.side-list em{font-style:normal;font-size:.72rem;color:var(--gray-light)}
.side-tags{display:flex;flex-wrap:wrap;gap:6px;padding:14px 16px}
.side-tag{font-size:.76rem;color:var(--ink-soft);border:1px solid var(--line-dark);padding:3px 10px;border-radius:999px;transition:all .18s;background:#fff}
.side-tag:hover{color:var(--ink);border-color:var(--ink)}
.side-tag.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.side-main{min-width:0;padding:0 12px 48px 0}
.side-right{display:none;flex-direction:column;gap:20px;position:sticky;top:92px;align-self:start;max-height:calc(100vh - 116px);overflow-y:auto;padding-right:4px}
.ad-slot{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  border:1px dashed var(--line-dark);background:var(--paper-dim);
  color:var(--gray-light);font-size:.8rem;letter-spacing:.1em;text-align:center;
}
.ad-slot small{font-size:.66rem;color:var(--gray-light)}
.ad-slot--rect{height:250px}
.ad-slot--tall{height:560px}
.ad-slot--mobile{display:none;height:120px;margin:0 0 24px}
.side-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:16px 2px 4px;border-top:1px solid var(--line);margin-top:48px;font-size:.74rem;color:var(--gray-light)}
.side-foot a{color:var(--gray);transition:color .2s}
.side-foot a:hover{color:var(--seal)}

/* ---------- 书籍卡片 ---------- */
.book-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.book-card{display:flex;flex-direction:column;min-width:0}
.book-cover{
  position:relative;overflow:hidden;background:var(--paper-dim);
  border:1px solid var(--line);border-radius:var(--radius);
  aspect-ratio:3/4;
}
.book-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.book-card:hover .book-cover img{transform:scale(1.045)}
.book-info{padding:8px 2px 0;display:flex;flex-direction:column;gap:3px;flex:1}
.book-title{font-family:var(--serif);font-weight:700;font-size:.86rem;line-height:1.4;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;word-break:break-all}
.book-meta{font-size:.72rem;color:var(--gray);display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.book-meta .rate{color:var(--seal);font-weight:700}
.tag{font-size:.7rem;color:var(--gray);border:1px solid var(--line-dark);padding:1px 8px;border-radius:999px;transition:all .2s;background:#fff}
.tag:hover{color:var(--ink);border-color:var(--ink)}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);padding:56px 0 40px;background:#fff}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.footer-links{margin-bottom:30px;padding-bottom:26px;border-bottom:1px solid var(--line)}
.footer-links-title{font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gray);margin-bottom:12px;font-weight:700}
.footer-links-list{display:flex;flex-wrap:wrap;gap:10px 22px}
.footer-links-list a{font-size:.85rem;color:var(--gray);transition:color .2s}
.footer-links-list a:hover{color:var(--seal)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:44px;margin-bottom:44px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:.85rem;color:var(--gray);max-width:300px;font-weight:300}
.footer-col h4{font-size:.82rem;letter-spacing:.2em;text-transform:uppercase;color:var(--ink);margin-bottom:16px;font-weight:700}
.footer-col a{display:block;font-size:.88rem;color:var(--gray);padding:6px 0;transition:color .2s,padding-left .2s}
.footer-col a:hover{color:var(--ink);padding-left:4px}
.footer-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.78rem;color:var(--gray-light)}
.footer-bottom .legal{max-width:640px;line-height:1.7}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:.82rem;color:var(--gray);padding:20px 0 0;flex-wrap:wrap}
.breadcrumb a{color:var(--ink-soft);transition:color .2s}
.breadcrumb a:hover{color:var(--seal)}
.breadcrumb .sep{color:var(--gray-light)}
.breadcrumb .cur{color:var(--ink);font-weight:600}

/* ---------- 列表页 ---------- */
.page-head{padding:34px 0 8px}
.page-title{font-family:var(--serif);font-weight:900;font-size:2.2rem;letter-spacing:.03em}
.page-sub{color:var(--gray);font-size:.92rem;margin-top:8px}
.filter-bar{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:16px 0;margin:22px 0 30px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.filter-label{font-size:.78rem;color:var(--gray);letter-spacing:.14em;text-transform:uppercase;margin-right:4px}
.filter-group{display:flex;gap:6px;flex-wrap:wrap;margin-right:18px}
.filter-btn{
  padding:6px 14px;font-size:.84rem;color:var(--ink-soft);
  border:1px solid var(--line-dark);border-radius:999px;transition:all .2s;background:#fff;
}
.filter-btn:hover{border-color:var(--ink);color:var(--ink)}
.filter-btn.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.sort-group{margin-left:auto;display:flex;gap:6px}
.list-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:26px}
.list-count{font-size:.88rem;color:var(--gray)}
.list-count b{color:var(--ink);font-family:var(--serif)}

/* 分页 */
.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:48px}
.page-btn{
  min-width:44px;height:44px;padding:0 16px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-dark);border-radius:var(--radius);font-size:.9rem;
  color:var(--ink-soft);transition:all .2s;background:#fff;
}
.page-btn:hover{border-color:var(--ink);color:var(--ink)}
.page-btn.active{background:var(--ink);color:#fff;border-color:var(--ink);font-weight:700}
.page-btn.disabled{opacity:.35;pointer-events:none}
.empty-state{
  text-align:center;padding:80px 20px;border:1px dashed var(--line-dark);border-radius:var(--radius);
}
.empty-state .empty-mark{width:56px;height:56px;margin:0 auto 18px;border:1.5px solid var(--ink);display:flex;align-items:center;justify-content:center;border-radius:50%}
.empty-state h3{font-family:var(--serif);font-size:1.25rem;margin-bottom:8px}
.empty-state p{color:var(--gray);font-size:.9rem;margin-bottom:22px}

/* ---------- 详情页 ---------- */
.detail-main{display:grid;grid-template-columns:260px 1fr;gap:36px;padding:26px 0 12px}
.detail-cover-wrap{position:sticky;top:100px;align-self:start}
.detail-cover{
  border:1px solid var(--line-dark);padding:12px;background:#fff;box-shadow:var(--shadow);
}
.detail-cover img{width:100%;aspect-ratio:3/4;object-fit:cover;}
.detail-cover .cover-note{display:flex;align-items:center;justify-content:space-between;padding:12px 2px 0;font-size:.74rem;color:var(--gray);letter-spacing:.1em}
.detail-title{font-family:var(--serif);font-weight:900;font-size:2.5rem;line-height:1.3;letter-spacing:.02em;margin-bottom:6px}
.detail-sub{font-size:1rem;color:var(--gray);margin-bottom:22px;font-weight:300}
.meta-table{width:100%;border-collapse:collapse;margin-bottom:26px;font-size:.92rem}
.meta-table td{padding:11px 0;border-bottom:1px solid var(--line);vertical-align:top}
.meta-table td:first-child{width:96px;color:var(--gray);font-size:.82rem;letter-spacing:.06em}
.meta-table td:last-child{color:var(--ink-soft);font-weight:500}
.detail-badges{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;font-size:.8rem;
  border:1px solid var(--line-dark);border-radius:999px;color:var(--ink-soft);background:#fff;
}
.badge--rate{background:var(--ink);color:#fff;border-color:var(--ink);font-weight:700}
.badge--heat{background:var(--paper-dim)}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}
.rating-row{display:flex;align-items:center;gap:10px;font-size:.85rem;color:var(--gray);margin-bottom:20px}
.stars{display:inline-flex;gap:2px;color:var(--ink);letter-spacing:2px}
.stars .off{color:var(--line-dark)}

.prose{padding:34px 0 20px}
.prose .section-title{font-size:1.4rem}
.prose p{font-size:.98rem;color:var(--ink-soft);margin-bottom:16px;line-height:2;font-weight:300}
.why-list{counter-reset:why;display:flex;flex-direction:column;gap:0;margin-top:6px}
.why-item{
  display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line);
}
.why-item:first-child{border-top:1px solid var(--line)}
.why-num{
  font-family:var(--serif);font-weight:900;font-size:1.9rem;color:var(--seal);
  line-height:1;flex:0 0 44px;text-align:right;padding-top:4px;
}
.why-body h4{font-family:var(--serif);font-size:1.08rem;font-weight:700;margin-bottom:6px}
.why-body p{font-size:.9rem;color:var(--gray);line-height:1.8;font-weight:300}

/* 详情页底部固定获取栏 */
.get-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  transform:translateY(110%);transition:transform .3s ease;
}
.get-bar.show{transform:translateY(0)}
.get-bar-inner{max-width:var(--maxw);margin:0 auto;padding:10px 24px;display:flex;align-items:center;gap:18px}
.get-bar-info{flex:1;min-width:0;display:flex;align-items:center;gap:14px}
.get-bar-info .mini-cover{width:38px;height:50px;object-fit:cover;border:1px solid var(--line);}
.get-bar-info b{font-family:var(--serif);font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.get-bar-info span{font-size:.76rem;color:var(--gray);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.get-bar .btn{padding:11px 26px;flex:0 0 auto}

/* ---------- 二维码弹窗 ---------- */
.modal{
  position:fixed;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;
  background:rgba(20,20,20,.55);backdrop-filter:blur(3px);
  opacity:0;pointer-events:none;transition:opacity .25s;padding:20px;
}
.modal.open{opacity:1;pointer-events:auto}
.modal-card{
  width:100%;max-width:420px;background:#fff;border-radius:4px;
  padding:34px 34px 30px;position:relative;
  transform:translateY(14px) scale(.98);transition:transform .28s ease;
  max-height:90vh;overflow:auto;
}
.modal.open .modal-card{transform:none}
.modal-close{
  position:absolute;top:14px;right:14px;width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-dark);border-radius:var(--radius);color:var(--gray);transition:all .2s;
}
.modal-close:hover{color:var(--ink);border-color:var(--ink)}
.modal-head{text-align:center;margin-bottom:22px}
.modal-head .seal{margin:0 auto 14px}
.modal-head h3{font-family:var(--serif);font-size:1.35rem;font-weight:900}
.modal-head p{font-size:.84rem;color:var(--gray);margin-top:6px;font-weight:300}
.qr-box{
  width:196px;height:196px;margin:0 auto 22px;padding:12px;border:1px solid var(--line-dark);
  background:#fff;position:relative;
}
.qr-box svg{width:100%;height:100%;display:block}
.qr-steps{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}
.qr-step{display:flex;gap:12px;align-items:flex-start}
.qr-step .n{
  flex:0 0 26px;height:26px;border-radius:50%;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:700;margin-top:2px;
}
.qr-step p{font-size:.88rem;color:var(--ink-soft);line-height:1.7}
.qr-step p b{color:var(--ink)}
.modal-tip{
  font-size:.74rem;color:var(--gray-light);text-align:center;line-height:1.7;
  border-top:1px dashed var(--line-dark);padding-top:16px;
}
/* 二维码模拟（预览示意，正式版替换为真实二维码图） */
#qrSvg .qr-sim{shape-rendering:crispEdges}

/* ---------- 响应式 ---------- */
@media (min-width:1180px){
  .layout-3{grid-template-columns:210px minmax(0,1fr) 230px}
  .side-right{display:flex}
}
@media (max-width:1180px){
  .layout-3{grid-template-columns:190px minmax(0,1fr);gap:24px}
  .ad-slot--mobile{display:flex}
}
@media (max-width:1024px){
  .book-grid{grid-template-columns:repeat(4,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .detail-main{grid-template-columns:240px 1fr;gap:28px}
}
@media (max-width:768px){
  .section{padding:52px 0}
  .main-nav,.header-search,.search{display:none}
  .menu-toggle{display:flex}
  .layout-3{position:static;display:block;padding:18px 0 44px}
  .side-left{display:flex;flex-direction:row;gap:12px;overflow-x:auto;overflow-y:visible;padding-bottom:4px;width:100%}
  .side-block{flex:0 0 220px}
  .side-main{padding:0 0 40px;overflow:visible}
  .side-right{display:none}
  .book-grid{grid-template-columns:repeat(4,1fr);gap:12px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .detail-main{grid-template-columns:1fr;gap:28px;padding-top:18px}
  .detail-cover-wrap{position:static;max-width:280px;margin:0 auto;width:100%}
  .detail-title{font-size:1.9rem}
  .get-bar-info span{display:none}
  .get-bar-inner{padding:10px 16px}
  .page-title{font-size:1.7rem}
}
@media (max-width:480px){
  .book-grid{grid-template-columns:repeat(3,1fr);gap:10px}
  .footer-grid{grid-template-columns:1fr}
  .container{padding:0 18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}


/* == 详情页紧凑化覆盖 == */
.detail-main{grid-template-columns:172px 1fr;gap:26px;padding:18px 0 6px;max-width:880px}
.detail-cover-wrap{position:static;align-self:start}
.detail-cover{padding:10px;background:#fff}
.detail-cover img{width:100%;height:auto;aspect-ratio:auto;object-fit:contain;display:block;}
.detail-title{font-size:2.05rem;margin-bottom:8px}
.detail-sub{margin-bottom:12px;font-size:.96rem}
.detail-facts{display:flex;align-items:center;flex-wrap:wrap;gap:6px 10px;font-size:.85rem;color:var(--gray);margin-bottom:16px;font-weight:300}
.detail-facts i{width:1px;height:11px;background:var(--line-dark);opacity:.4;display:inline-block}
.detail-badges{margin-bottom:14px;gap:8px}
.detail-oneliner{font-size:.95rem;color:var(--ink-soft);line-height:1.9;font-weight:300;margin-bottom:18px}
.detail-actions{margin-top:2px}
@media(max-width:768px){
  .detail-main{grid-template-columns:116px 1fr;gap:16px;padding-top:12px;max-width:none}
  .detail-cover{padding:7px}
    .detail-title{font-size:1.4rem;line-height:1.35}
  .detail-sub{font-size:.88rem;margin-bottom:10px}
  .detail-facts{font-size:.78rem;gap:4px 8px;margin-bottom:12px}
  .detail-oneliner{font-size:.88rem;margin-bottom:14px}
  }
@media(max-width:480px){
  .detail-main{grid-template-columns:100px 1fr;gap:14px}
  .detail-title{font-size:1.25rem}
}

/* ===== 推书阁正式版新增样式 ===== */
.side-cats{list-style:none;margin:0;padding:0}
.side-cats li{margin:0}
.side-cats a{display:flex;align-items:center;justify-content:space-between;padding:7px 10px;border-radius:6px;color:var(--ink-soft);font-size:.9rem;text-decoration:none;transition:background .15s,color .15s}
.side-cats a:hover{background:var(--paper-dim);color:var(--ink)}
.side-cats a b{font-weight:400;font-size:.75rem;color:var(--gray)}
.side-cats .all{color:var(--seal);font-weight:500}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:18px}
.filter-bar select{font-family:inherit;font-size:.9rem;padding:7px 10px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink);max-width:220px}
.filter-bar .count{margin-left:auto;font-size:.85rem;color:var(--gray)}
.book-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:22px 16px}
.book-card{display:block;text-decoration:none;color:inherit}
.book-card .cover{position:relative;border:1px solid var(--line);background:#fff;padding:8px;box-shadow:var(--shadow);transition:transform .18s}
.book-card:hover .cover{transform:translateY(-3px)}
.book-card img{width:100%;height:auto;aspect-ratio:3/4;object-fit:cover;display:block}
.book-card .name{margin-top:9px;font-size:.9rem;font-weight:600;line-height:1.45;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.book-card .meta{margin-top:3px;font-size:.78rem;color:var(--gray);font-weight:300;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pager{display:flex;align-items:center;justify-content:center;gap:14px;margin:26px 0 6px}
.pager button,.pager .cur{font-family:inherit;font-size:.9rem;border:1px solid var(--line);background:#fff;color:var(--ink);padding:7px 16px;border-radius:6px;cursor:pointer;text-decoration:none}
.pager button:hover:not(:disabled){border-color:var(--ink)}
.pager button:disabled{opacity:.4;cursor:not-allowed}
.pager .cur{background:var(--ink);color:#fff;border-color:var(--ink);font-weight:600}
.cat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.cat-item{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--ink);transition:border-color .15s,background .15s}
.cat-item:hover{border-color:var(--ink);background:var(--paper-dim)}
.cat-item b{font-weight:500;font-size:.95rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat-item span{font-size:.78rem;color:var(--gray);margin-left:10px;white-space:nowrap}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud a{padding:7px 15px;border:1px solid var(--line);border-radius:999px;font-size:.88rem;color:var(--ink-soft);text-decoration:none;transition:all .15s}
.tag-cloud a:hover{border-color:var(--ink);color:var(--ink);background:var(--paper-dim)}
.stat-line{font-size:.88rem;color:var(--gray);margin-bottom:16px}
.search-res{font-size:.88rem;color:var(--gray);margin-bottom:14px}
.img-fallback{display:flex;align-items:center;justify-content:center;background:var(--paper-dim);color:var(--gray);font-size:.72rem;letter-spacing:.12em}
.side-tagwrap{display:flex;flex-wrap:wrap;gap:7px;padding:12px}
.side-tag{display:inline-block;padding:4px 11px;border:1px solid var(--line);border-radius:999px;font-size:.78rem;color:var(--ink-soft);text-decoration:none;transition:all .15s}
.side-tag:hover{border-color:var(--ink);color:var(--ink);background:var(--paper-dim)}
.cat-desc{font-size:.8rem;color:var(--gray);margin-top:4px;line-height:1.5}
.detail-badges .badge{background:var(--paper-dim);border:1px solid var(--line);color:var(--ink-soft);font-size:.8rem;padding:4px 12px;border-radius:999px;display:inline-block;margin-right:8px;text-decoration:none}
.modal-sub{font-size:.85rem;color:var(--gray);margin-top:6px}
.modal-book{font-size:.95rem;font-weight:600;color:var(--ink);margin-top:4px}
.qr-real{display:block;width:220px;height:220px;object-fit:contain}
@media(max-width:768px){
  .book-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px 10px}
  .cat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .filter-bar select{max-width:150px}
}
@media(max-width:480px){
  .book-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px 8px}
}

/* ============================================================
   组件适配层：页面实际使用的 logo/搜索/抽屉/页脚类名补齐样式
   ============================================================ */
/* --- 顶部品牌 --- */
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.logo-seal{
  width:40px;height:40px;flex:0 0 auto;background:var(--seal);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-weight:900;font-size:1.25rem;border-radius:var(--radius);
}
.logo-text{font-family:var(--serif);font-weight:900;font-size:1.28rem;letter-spacing:.08em;line-height:1.15;color:var(--ink)}
.logo-text em{font-style:normal;display:block;color:var(--gray);font-weight:400;font-size:.6rem;letter-spacing:.18em;line-height:1.5}
/* --- 顶部搜索框 --- */
.search{
  display:flex;align-items:center;gap:8px;margin-left:auto;
  border:1px solid var(--line-dark);border-radius:var(--radius);
  padding:0 12px;height:40px;width:240px;flex:0 0 auto;background:#fff;
  transition:border-color .2s,box-shadow .2s;
}
.search:focus-within{border-color:var(--ink);box-shadow:0 0 0 2px rgba(20,20,20,.06)}
.search input{flex:1;min-width:0;border:none;outline:none;font-size:.92rem;background:transparent;color:var(--ink)}
.search input::placeholder{color:var(--gray-light)}
.search button{flex:0 0 auto;border:none;background:none;cursor:pointer;color:var(--gray);font-size:.9rem;padding:4px 2px;transition:color .2s}
.search button:hover{color:var(--ink)}
@media (max-width:1120px){
  .header-inner{gap:16px}
  .search{width:190px}
}
/* --- 移动端抽屉 --- */
.drawer-card{
  position:absolute;top:0;right:0;bottom:0;width:78%;max-width:320px;
  background:#fff;padding:24px;display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .28s ease;
  box-shadow:var(--shadow);overflow-y:auto;
}
.drawer.open .drawer-card{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-logo{font-family:var(--serif);font-weight:900;font-size:1.15rem;letter-spacing:.08em}
#drawerClose{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;line-height:1;color:var(--ink-soft);background:none;border:none;cursor:pointer;
  margin-right:-10px;border-radius:var(--radius);
}
#drawerClose:hover{background:var(--paper-dim);color:var(--ink)}
.drawer-nav{display:flex;flex-direction:column;margin:0 -10px}
.drawer-nav a{padding:14px 10px;font-size:1.05rem;font-weight:500;border-bottom:1px solid var(--line);color:var(--ink-soft)}
.drawer-nav a.active{color:var(--seal);font-weight:700}
.drawer-search{display:flex;align-items:center;gap:8px}
.drawer-search button{border:none;background:none;cursor:pointer;color:var(--gray);font-size:.92rem;padding:4px}
/* --- 页脚 --- */
.footer-brand{font-family:var(--serif);font-weight:900;font-size:1.05rem;color:var(--ink);margin-bottom:4px}
.footer-brand em{font-style:normal;font-family:var(--sans);font-weight:400;font-size:.72rem;color:var(--gray-light);letter-spacing:.16em;margin-left:8px}
.footer-nav{display:flex;gap:22px;flex-wrap:wrap;margin:14px 0 12px}
.footer-nav a{font-size:.88rem;color:var(--gray);transition:color .2s}
.footer-nav a:hover{color:var(--ink)}
.footer-line{font-size:.8rem;color:var(--gray);margin-top:4px}
.footer-line b{color:var(--seal);font-weight:600}
.legal{font-size:.72rem;color:var(--gray-light);line-height:1.8;margin-top:10px;max-width:760px}
.footer-links{margin-bottom:8px}
.footer-links-title{font-size:.78rem;letter-spacing:.2em;color:var(--gray);margin-bottom:10px;font-weight:700}
.footer-links-list{display:flex;gap:20px;flex-wrap:wrap}
.footer-links-list a{font-size:.85rem;color:var(--gray);transition:color .2s}
.footer-links-list a:hover{color:var(--ink)}