:root{
  --bg:#eef2e8;
  --paper:#f7f5ec;
  --ink:#1a2a1c;
  --muted:#5d6b58;
  --line:#cfd8c4;
  --soft:#fffcf5;
  --brand:#2f6b3a;
  --brand2:#4a8f56;
  --accent:#1f4d2a;
  --parch:#e8e0cc;
  --max:1100px;
  --toc:196px;
  --radius:5px;
  --shadow:0 7px 22px rgba(26,42,28,.07);
  font-family:"Palatino Linotype","Noto Serif SC","Songti SC","SimSun",serif;
}
*{box-sizing:border-box}
body{
  margin:0;color:var(--ink);line-height:1.88;
  background:
    linear-gradient(90deg,rgba(47,107,58,.07),transparent 30%),
    var(--bg);
}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--accent);text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,245,236,.95);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.header-inner{
  max-width:var(--max);margin:0 auto;padding:.55rem 1rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
.brand{display:flex;align-items:center;gap:.55rem;color:var(--ink);font-weight:700;text-decoration:none}
.brand img{width:38px;height:38px;border-radius:4px;object-fit:cover}
.nav-desktop{display:flex;gap:.95rem;flex-wrap:wrap;font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:.9rem}
.nav-desktop a{color:var(--ink);font-weight:600;text-decoration:none}
.menu-toggle{
  display:none;border:1px solid var(--line);background:var(--soft);
  border-radius:4px;padding:.35rem .6rem;font-weight:700;cursor:pointer;
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}
#mobile-nav{display:none;flex-direction:column;gap:.25rem;padding:.35rem 1rem .9rem;border-top:1px solid var(--line);background:var(--paper);font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
#mobile-nav.open{display:flex}
#mobile-nav a{padding:.45rem .3rem;color:var(--ink);font-weight:600;text-decoration:none}
.folio-mast{
  max-width:var(--max);margin:0 auto;padding:.55rem 1rem 0;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  color:var(--muted);font-size:.82rem;letter-spacing:.06em;
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  border-bottom:1px solid var(--line);
  padding-bottom:.45rem;
}
.folio-layout{
  max-width:var(--max);margin:0 auto;padding:1rem 1rem 3rem;
  display:grid;grid-template-columns:var(--toc) 1fr;gap:1.35rem;align-items:start;
}
.folio-toc{
  position:sticky;top:72px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:.85rem .75rem;box-shadow:var(--shadow);
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:.87rem;
}
.folio-toc strong{display:block;margin-bottom:.55rem;color:var(--ink);letter-spacing:.05em;font-size:.76rem}
.folio-toc a{display:block;padding:.28rem 0;color:var(--muted);text-decoration:none;border-left:2px solid transparent;padding-left:.45rem}
.folio-toc a:hover{color:var(--brand);border-left-color:var(--brand2)}
.folio-reader{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.35rem 1.35rem 1.6rem;box-shadow:var(--shadow);
}
.folio-reader h1{margin:0 0 .85rem;font-size:clamp(1.48rem,2.8vw,2.02rem);line-height:1.35;font-weight:700}
.folio-reader .deck{margin:0 0 1.1rem;color:var(--muted);font-size:1.02rem}
.folio-reader h2{margin:1.5rem 0 .65rem;font-size:1.26rem;border-bottom:1px solid var(--line);padding-bottom:.35rem}
.folio-reader h3{margin:1.1rem 0 .45rem;font-size:1.06rem}
.folio-reader p{margin:0 0 .92rem}
.folio-reader figure{margin:1.05rem 0 1.2rem}
.folio-reader figcaption{margin-top:.42rem;color:var(--muted);font-size:.9rem;font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
.folio-reader ul{margin:0 0 1rem;padding-left:1.2rem}
.folio-reader .list-guide{list-style:none;padding:0;margin:0 0 1rem}
.folio-reader .list-guide li{
  border:1px solid var(--line);background:var(--soft);
  padding:.7rem .85rem;margin:.45rem 0;border-radius:var(--radius);
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:.94rem;
}
.folio-reader .list-guide strong{color:var(--brand);margin-right:.35rem}
.catalog-faq details{border:1px solid var(--line);border-radius:4px;padding:.65rem .8rem;margin:.45rem 0;background:var(--soft);font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
.catalog-faq summary{cursor:pointer;font-weight:700}
.peer-inline a{font-weight:700}
.site-footer{border-top:1px solid var(--line);background:rgba(247,245,236,.92);padding:1.35rem 1rem 2rem;color:var(--muted);font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
.footer-inner{max-width:var(--max);margin:0 auto}
.footer-nav{display:flex;flex-wrap:wrap;gap:.75rem;margin:.5rem 0 .85rem}
.footer-nav a{color:var(--ink);font-weight:600;text-decoration:none}
.page-only{max-width:760px;margin:0 auto;padding:1rem 1rem 3rem}
.page-only .folio-reader{padding:1.2rem}
@media (max-width:900px){
  .nav-desktop{display:none}
  .menu-toggle{display:inline-flex}
  .folio-layout{grid-template-columns:1fr}
  .folio-toc{position:relative;top:auto}
}


/* SEO keyword highlight */
strong.kw,.kw{
  color:var(--accent,var(--brand,#e86a2c));
  font-weight:800;
}
mark.kw{
  background:color-mix(in srgb, var(--brand,#e86a2c) 16%, transparent);
  color:inherit;
  padding:0 .12em;
  border-radius:3px;
}
h1 .kw,h2 .kw,h3 .kw{color:var(--brand,#e86a2c)}

/* UNIQUE_HAMBURGER_THEME_START */

/* === unique chrome: hamburger-only + theme === */
:root{--bg:#eef3e8;--paper:#f8faf4;--ink:#1f2d1a;--muted:#5f7058;--line:#c9d6c0;--soft:#f2f6ec;--brand:#3f7d4e;--brand2:#6aa87a;--accent:#2f5d3a;--header-bg:#f8faf4;--radius:6px;--shadow:0 1px 0 #c9d6c0;--font:Garamond,"Songti SC","SimSun",serif;}
body{font-family:var(--font)}
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--header-bg, var(--paper));
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.site-header .brand{color:var(--ink)}
.site-header .brand span{color:var(--ink)}
.nav-desktop{display:none!important}
.menu-toggle{display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;padding:0;cursor:pointer;
  border:1px solid var(--line);background:transparent;color:inherit;
  border-radius:var(--radius);
}
.menu-toggle .burger{
  width:20px;height:14px;display:flex;flex-direction:column;justify-content:space-between;
}
.menu-toggle .burger i{
  display:block;height:2px;width:100%;background:currentColor;border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.menu-toggle[aria-expanded="true"] .burger i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] .burger i:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] .burger i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
#mobile-nav{
  display:none;flex-direction:column;gap:.25rem;
  padding:.65rem 1rem 1rem;border-top:1px solid var(--line);
  background:var(--paper);color:var(--ink);
}
#mobile-nav.open{display:flex}
#mobile-nav a{
  padding:.7rem .55rem;border-radius:calc(var(--radius) / 2);
  color:var(--ink);font-weight:700;
}
#mobile-nav a:hover{background:color-mix(in srgb, var(--brand) 12%, transparent)}
.theme-forest-book .site-header{/* marker */}

.site-header{border-bottom:1px solid var(--ink)}.menu-toggle{border-radius:4px;border-color:var(--ink)}
/* UNIQUE_HAMBURGER_THEME_END */

/* DESKTOP_ADAPT_START */


html{ -webkit-text-size-adjust:100%; }
img,video{ max-width:100%; height:auto; }
.header-inner,.wrap,.site-main,.footer-inner,.ads-head{
  width:100%;
  margin-left:auto;margin-right:auto;
  box-sizing:border-box;
}
.header-inner{
  max-width:var(--desk-max, var(--max, 1120px));
  padding:.85rem clamp(1rem, 3vw, 1.75rem);
  min-height:64px;
}
.site-main,.wrap,.footer-inner,.ads-head{
  max-width:var(--desk-max, var(--max, 1120px));
  padding-left:clamp(1rem, 3vw, 1.75rem);
  padding-right:clamp(1rem, 3vw, 1.75rem);
}
@media (min-width:1280px){
  :root{ --desk-max:1240px; }
  body{ font-size:17.5px; }
}
@media (min-width:1440px){
  :root{ --desk-max:1320px; }
}



@media (min-width:901px){
  .folio-layout{
    display:grid!important;
    grid-template-columns:220px minmax(0,1fr);
    gap:1.75rem; align-items:start;
    max-width:var(--desk-max); margin:0 auto;
    padding:1.25rem clamp(1rem,3vw,1.75rem) 3rem;
  }
  .folio-toc{ position:sticky; top:84px; max-height:calc(100vh - 100px); overflow:auto; }
  .folio-reader{ max-width:780px; min-width:0; }
}

/* DESKTOP_ADAPT_END */

/* DESKTOP_ADAPT_PATCH */
@media (max-width:900px){
  #mobile-nav.open{
    flex-direction:column!important;
    align-items:stretch!important;
    justify-content:flex-start!important;
  }
  .header-inner,.site-main,.wrap,.footer-inner,.ads-head{
    padding-left:1rem;
    padding-right:1rem;
  }
}
@media (min-width:901px){
  .ads-head .ads-wrap{ max-width:100%; }
  #ads{ justify-content:center; gap:16px 20px; }
  /* cinema full-bleed frames stay edge-to-edge */
  body[data-template="cinema"] .cine-frame{
    width:100vw;
    margin-left:calc(50% - 50vw);
    margin-right:calc(50% - 50vw);
  }
  body[data-template="dark-band"] .band-hero,
  body[data-template="dark-band"] .band-dark,
  body[data-template="dark-band"] .band-light{
    width:100%;
  }
}


/* UNIQUE_VISUAL_SKIN_START */
body{
  background:
    linear-gradient(#2f6b3a 0 0) 0 0 / 100% 3px no-repeat,
    #eef3e8 !important;
}
.site-header{background:#f8faf4!important;border-bottom:1px solid #2f5d3a!important}
.folio-toc{
  background:#f8faf4!important;border:1px solid #2f5d3a!important;border-radius:6px!important;
  box-shadow:3px 3px 0 #a3c4a8!important;
}
.folio-toc a{color:#2f5d3a!important;font-family:Garamond,serif!important}
.folio-reader{
  background:#fffcf7!important;border:1px solid #9bb79a!important;border-radius:6px!important;
  padding:1.4rem 1.5rem!important;
}
.folio-reader h1,.folio-reader h2{
  font-family:Garamond,"Songti SC",serif!important;color:#1f2d1a!important;
  border-bottom:1px dashed #9bb79a;
}
.site-footer{border-top:1px solid #2f5d3a!important;background:#e5eedf!important}
/* UNIQUE_VISUAL_SKIN_END */

/* UNIQUE_SKIN_V2_START */
@media (min-width:901px){.folio-layout{grid-template-columns:240px 1fr!important;gap:2rem!important}}
.folio-reader p{text-indent:0;line-height:1.9!important}
.folio-toc{font-size:.92rem}
/* UNIQUE_SKIN_V2_END */


/* DESKTOP_NAV_TOP_START */
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  flex-wrap:nowrap;
}
#mobile-nav{
  display:none;
  flex-direction:column;
  gap:.25rem;
  width:100%;
  order:3;
  padding:.55rem 0 .85rem;
  border-top:1px solid var(--line, #e5e5e5);
  background:var(--paper, #fff);
}
#mobile-nav.open{display:flex}
.menu-toggle{display:inline-flex}

@media (min-width:901px){
  .menu-toggle{display:none!important}
  .header-inner{flex-wrap:nowrap;align-items:center}
  #mobile-nav,
  #mobile-nav.open{
    display:flex!important;
    flex-direction:row!important;
    flex-wrap:wrap;
    align-items:center;
    justify-content:flex-end;
    gap:.15rem .75rem;
    width:auto;
    max-width:none;
    order:0;
    margin-left:auto;
    margin-right:0;
    padding:0!important;
    border:0!important;
    background:transparent!important;
    box-shadow:none!important;
  }
  #mobile-nav a{
    padding:.35rem .45rem!important;
    white-space:nowrap;
    border-radius:0!important;
    background:transparent!important;
    color:inherit!important;
    font-weight:700;
  }
  #mobile-nav a:hover{
    color:var(--brand, var(--accent))!important;
    background:transparent!important;
    text-decoration:underline;
  }
}
@media (max-width:900px){
  .header-inner{flex-wrap:wrap}
  .menu-toggle{display:inline-flex!important;margin-left:auto}
  #mobile-nav{
    display:none;
    width:100%;
    order:3;
    flex-direction:column!important;
    align-items:stretch!important;
  }
  #mobile-nav.open{display:flex!important}
}
/* DESKTOP_NAV_TOP_END */