/* ══════════════════════════════════════════
   红楼梦电子书 专用样式
   基色沿用站点：米色 #FAF8F4 纸感，橙 #D97706 点缀
   ══════════════════════════════════════════ */
:root{
  --hl-bg:#FAF8F4; --hl-ink:#2c2c2c; --hl-ink2:#6b6b6b;
  --hl-line:#e8e3d8; --hl-accent:#D97706; --hl-note:#A24B00;
  --hl-card:#FBF4E6; --hl-cardline:#EAD9B8;
}
.hl-body{
  background:var(--hl-bg); color:var(--hl-ink);
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  line-height:2; min-height:100vh;
}
.hl-body a{color:var(--hl-accent);text-decoration:none}

/* ── 顶栏 ── */
.hl-topbar{
  position:sticky;top:0;z-index:80;
  background:rgba(250,248,244,.95);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--hl-line);
  display:flex;align-items:center;justify-content:space-between;
  padding:.5rem .8rem;padding-top:calc(.5rem + env(safe-area-inset-top));
}
.hl-topbar .tb-title{
  font-size:.9rem;font-weight:700;flex:1;min-width:0;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.hl-topbar .tb-btns{display:flex;gap:.35rem;margin-left:.5rem}
.tbtn{
  border:1px solid var(--hl-line);background:#fff;border-radius:8px;
  font-size:.76rem;color:var(--hl-ink2);padding:.3rem .5rem;cursor:pointer;
  font-family:inherit;white-space:nowrap;
}
.tbtn:active{background:var(--hl-card)}
.tbtn.on{background:var(--hl-card);border-color:var(--hl-cardline);color:var(--hl-note)}

/* ── 进度条 ── */
.progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--hl-accent);z-index:99}

/* ── 书壳 ── */
.book{max-width:680px;margin:0 auto;padding:1.1rem 1.05rem 4.5rem}
.chap-head{text-align:center;padding:1.6rem 0 .9rem}
.chap-no{
  display:inline-block;font-size:.76rem;letter-spacing:.32em;text-indent:.32em;
  color:var(--hl-accent);border:1px solid var(--hl-cardline);
  background:var(--hl-card);border-radius:999px;padding:.18rem .85rem;margin-bottom:.9rem;
}
.chap-title{
  font-size:1.42rem;font-weight:700;line-height:1.62;
  font-family:"Kaiti SC","KaiTi","Noto Serif SC",serif;
}
.chap-source{margin-top:.6rem;font-size:.7rem;color:#b8b2a5}

/* ── 插图 ── */
.chap-art{margin:1.1rem 0 1.5rem}
.chap-art img{
  display:block;width:100%;height:auto;border-radius:10px;
  box-shadow:0 2px 14px rgba(90,60,20,.13);
}
.chap-art figcaption{
  text-align:center;font-size:.72rem;color:#b8b2a5;margin-top:.45rem;letter-spacing:.06em;
}

/* ── 正文 ── */
.hl-content .para{margin-bottom:1.3rem;text-align:justify;text-indent:2em}

/* ── 行内脂批 ── */
.zb{
  font-size:.72em;color:var(--hl-note);text-indent:0;line-height:1.9;
  background:rgba(217,119,6,.07);border-radius:4px;padding:0 .25em;
}
.zb .zb-mark{
  font-style:normal;font-weight:700;font-size:.85em;
  color:#fff;background:var(--hl-note);border-radius:3px;
  padding:.04em .34em;margin-right:.28em;vertical-align:.08em;
}
.hl-body.no-zb .zb{display:none}
.hl-body.no-zb .note-card{display:none}

/* ── 批语卡片 ── */
.note-card{
  background:var(--hl-card);border:1px solid var(--hl-cardline);
  border-left:3px solid var(--hl-accent);border-radius:0 10px 10px 0;
  padding:.75rem .9rem .65rem;margin:1rem 0 1.3rem;
  font-size:.85rem;line-height:1.95;
}
.note-card .nc-label{
  font-size:.66rem;color:var(--hl-accent);letter-spacing:.22em;
  margin-bottom:.3rem;font-weight:700;
}
.nc-item{margin-bottom:.28rem}
.nc-mark{
  display:inline-block;font-size:.72em;color:var(--hl-note);
  border:1px solid var(--hl-cardline);background:#fff;
  border-radius:4px;padding:0 .38em;margin-right:.45em;font-weight:700;
}

/* ── 底部导航 ── */
.pager{
  display:flex;gap:.45rem;margin-top:2.2rem;padding-top:1.1rem;
  border-top:1px solid var(--hl-line);
}
.pager a,.pager span{
  flex:1;text-align:center;padding:.65rem .3rem;border-radius:10px;
  border:1px solid var(--hl-line);background:#fff;font-size:.85rem;color:var(--hl-ink);
}
.pager .toc{flex:0 0 4.6em;color:var(--hl-accent);font-weight:700}
.pager .off{color:#c9c4b8;font-size:.8rem}
.hl-foot{text-align:center;font-size:.7rem;color:#c5c0b5;margin-top:1.6rem;line-height:1.9}

/* ── 字号 ── */
.hl-body.big{font-size:18.5px}
.hl-body.big .hl-content .para{font-size:1.05rem}
.hl-body.big .chap-title{font-size:1.55rem}

/* ── 浮动按钮 ── */
.fbtn-top{
  position:fixed;right:.85rem;bottom:calc(1rem + env(safe-area-inset-bottom));
  width:2.5rem;height:2.5rem;border-radius:50%;border:1px solid var(--hl-line);
  background:rgba(255,255,255,.95);box-shadow:0 2px 10px rgba(90,60,20,.12);
  font-size:1rem;color:var(--hl-ink2);cursor:pointer;z-index:70;
  opacity:0;pointer-events:none;transition:opacity .25s;
}
.fbtn-top.show{opacity:1;pointer-events:auto}

/* ── 目录抽屉 ── */
.toc-mask{
  position:fixed;inset:0;background:rgba(40,30,15,.42);z-index:110;
  opacity:0;pointer-events:none;transition:opacity .25s;
}
.toc-mask.show{opacity:1;pointer-events:auto}
.toc-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(85vw,360px);
  background:var(--hl-bg);z-index:120;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  box-shadow:-4px 0 24px rgba(60,40,10,.18);
}
.toc-drawer.show{transform:translateX(0)}
.toc-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:.9rem 1rem;padding-top:calc(.9rem + env(safe-area-inset-top));
  border-bottom:1px solid var(--hl-line);font-size:.92rem;font-weight:700;
}
.toc-close{border:none;background:none;font-size:1.5rem;color:var(--hl-ink2);cursor:pointer;line-height:1}
.toc-search{padding:.6rem .9rem;border-bottom:1px solid var(--hl-line)}
.toc-search input{
  width:100%;padding:.5rem .7rem;border:1px solid var(--hl-line);
  border-radius:8px;background:#fff;font-size:.85rem;font-family:inherit;color:var(--hl-ink);
}
.toc-list{flex:1;overflow-y:auto;padding:.5rem 0;-webkit-overflow-scrolling:touch}
.toc-item{
  display:block;padding:.6rem 1rem;font-size:.86rem;color:var(--hl-ink);
  border-bottom:1px solid #f2ede2;line-height:1.6;
}
.toc-item:active{background:var(--hl-card)}
.toc-item.cur{background:var(--hl-card);color:var(--hl-accent);font-weight:700}
.toc-item .ti-no{color:var(--hl-ink2);font-size:.78rem;margin-right:.5rem}
.toc-item.cur .ti-no{color:var(--hl-accent)}
.toc-item .ti-zb{font-size:.66rem;color:var(--hl-note);border:1px solid var(--hl-cardline);border-radius:3px;padding:0 .25em;margin-left:.35em}

/* ══ 目录页 ══ */
.hl-hero{
  background:linear-gradient(170deg,#F6EFE0 0%,#FAF8F4 100%);
  border-bottom:1px solid var(--hl-line);text-align:center;
  padding:2.4rem 1.2rem 2rem;
}
.hl-hero-inner{max-width:680px;margin:0 auto}
.hl-hero h1{
  font-family:"Kaiti SC","KaiTi","Noto Serif SC",serif;
  font-size:2.6rem;letter-spacing:.28em;text-indent:.28em;
  color:#7a4a12;margin-bottom:.6rem;
}
.hl-hero-sub{font-size:.92rem;color:var(--hl-ink2);letter-spacing:.06em}
.hl-hero-note{font-size:.72rem;color:#b8b2a5;margin-top:.55rem;line-height:1.8}
.hl-actions{display:flex;gap:.6rem;justify-content:center;margin-top:1.3rem}
.hl-btn{
  padding:.55rem 1.5rem;border-radius:999px;border:1px solid var(--hl-cardline);
  background:#fff;font-size:.88rem;color:var(--hl-ink);
}
.hl-btn.primary{background:var(--hl-accent);border-color:var(--hl-accent);color:#fff}
.hl-continue-hint{font-size:.72rem;color:#b8b2a5;margin-top:.7rem;min-height:1em}

.hl-stats{
  display:flex;justify-content:space-around;text-align:center;
  padding:1.1rem 0;margin:1.2rem 0;
  border:1px solid var(--hl-line);border-radius:12px;background:#fff;
}
.hs-item b{display:block;font-size:1.3rem;color:var(--hl-accent);font-weight:700}
.hs-item span{font-size:.72rem;color:var(--hl-ink2)}

.toc-search-main{margin:1rem 0 1.2rem;padding:0}
.toc-search-main input{font-size:.9rem;padding:.6rem .8rem}

.hl-toc-grid{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}
.hl-toc-card{
  display:block;padding:.65rem .75rem;background:#fff;
  border:1px solid var(--hl-line);border-radius:9px;font-size:.84rem;
  line-height:1.55;color:var(--hl-ink);
}
.hl-toc-card:active{background:var(--hl-card)}
.hl-toc-card .hc-no{font-size:.7rem;color:var(--hl-accent);font-weight:700;display:block;margin-bottom:.15rem}
.hl-toc-card .hc-zb{font-size:.62rem;color:var(--hl-note);border:1px solid var(--hl-cardline);border-radius:3px;padding:0 .25em;margin-left:.3em}
.hl-page-foot{text-align:center;padding:2rem 1rem 3rem;font-size:.76rem;color:#c5c0b5}
.hl-page-foot a{color:#c5c0b5}

/* ── 回末注疏：出典 + 脂批印证（老吴整理语气） ── */
.hl-reads{
  margin:2rem 0 0;border:1px solid var(--hl-line);border-radius:10px;
  background:linear-gradient(180deg,#FFFDF8,#FFF9EF);
  overflow:hidden;
}
.hl-reads>summary{
  list-style:none;cursor:pointer;padding:.85rem 1rem;
  font-family:"Noto Serif SC","Songti SC",SimSun,serif;
  font-size:.92rem;color:var(--hl-note);
  display:flex;align-items:center;gap:.5rem;
  border-bottom:1px solid transparent;
}
.hl-reads>summary::-webkit-details-marker{display:none}
.hl-reads>summary::after{content:"▾";margin-left:auto;font-size:.8rem;opacity:.6;transition:transform .2s}
.hl-reads[open]>summary{border-bottom-color:var(--hl-line)}
.hl-reads[open]>summary::after{transform:rotate(180deg)}
.hread-ico{
  display:inline-flex;align-items:center;justify-content:center;
  width:1.35rem;height:1.35rem;border-radius:4px;
  background:var(--hl-note);color:#fff;font-size:.72rem;
  font-family:inherit;flex:none;
}
.hl-reads-body{padding:.4rem 1rem .2rem}
.hr-item{padding:.85rem 0;border-bottom:1px dashed var(--hl-line)}
.hr-item:last-child{border-bottom:0}
.hr-q{
  font-family:"Noto Serif SC","Songti SC",SimSun,serif;
  font-size:.86rem;font-weight:700;color:#7a3b12;margin-bottom:.45rem;
}
.hr-quote{
  font-family:"Noto Serif SC","Songti SC",SimSun,serif;
  font-size:.86rem;color:#6b6257;line-height:1.85;
  padding:.5rem .75rem;margin:0 0 .55rem;
  background:#FBF6EC;border-left:3px solid #E3C79A;border-radius:0 6px 6px 0;
}
.hr-text{font-size:.86rem;line-height:2;color:#4a453c;text-align:justify}
.hl-reads-src{
  padding:.7rem 1rem 1rem;font-size:.74rem;color:#a09a8e;
  font-family:"Noto Serif SC","Songti SC",SimSun,serif;
}

/* ── 回末工具条：收藏 / 复制 / 手机扫码（复用主题 page-actions） ── */
.hl-body .page-actions{justify-content:center;margin:1.6rem 0 .5rem}

/* ── 页眉「首页 ·」与页脚署名 ── */
.hl-topbar .tb-title{display:flex;align-items:center;gap:.4rem;min-width:0}
.hl-topbar .tb-home{color:var(--hl-ink);opacity:.85;text-decoration:none;flex:none}
.hl-topbar .tb-home:hover{color:var(--hl-accent)}
.hl-topbar .tb-sep{opacity:.4;flex:none}
.hl-nav-top{max-width:1120px;margin:0 auto;padding:.9rem 1.2rem 0;font-size:.82rem;color:#8a857a}
.hl-nav-top a{color:#8a857a;text-decoration:none}
.hl-nav-top a:hover{color:var(--hl-accent)}

.hl-foot{text-align:center}
.hl-foot .hl-foot-credit{margin:0 0 .5rem}
.hl-foot .hl-foot-site{margin:0;font-size:.78rem}
.hl-foot .hl-foot-site a{color:#b8b2a5;text-decoration:none}
.hl-foot .hl-foot-site a:hover{color:var(--hl-accent)}

@media(max-width:480px){
  .hl-toc-grid{grid-template-columns:1fr}
  .hl-hero h1{font-size:2.2rem}
  .book{padding:1rem .85rem 4rem}
}