/* ==========================================================
   精油芳療百科 · Encyclopædia Aromatica
   Classic Ornamental Engraving — 古典裝飾版畫
   ========================================================== */
:root{
  --paper:#f3ecdb;
  --paper-2:#ebe1ca;
  --paper-3:#e2d5b8;
  --ink:#221b14;
  --ink-soft:#43372b;
  --sepia:#6f5a40;
  --rule:#8b7150;
  --gold:#9c7a3c;
  --claret:#7a2a20;
  --claret-deep:#5c1e17;
  --leaf:#3b4e3d;
  --measure:40rem;
  --serif-tc:"Noto Serif TC","Songti TC","PMingLiU",serif;
  --serif-lat:"Cormorant Garamond","Cormorant","Garamond",serif;
  --sc:"Cormorant SC","Cormorant Garamond",serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background-color:var(--paper);
  background-image:
    radial-gradient(ellipse at 50% -10%,rgba(255,250,235,.75),transparent 60%),
    radial-gradient(ellipse at 50% 120%,rgba(120,90,50,.16),transparent 55%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .35 0 0 0 0 .27 0 0 0 0 .16 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  font-family:var(--serif-tc);font-size:17.5px;line-height:1.95;letter-spacing:.02em;
  font-feature-settings:"palt" 0;
  text-rendering:optimizeLegibility;
}
img,svg{max-width:100%}
a{color:var(--claret);text-decoration:none;background-image:linear-gradient(currentColor,currentColor);background-size:100% 1px;background-repeat:no-repeat;background-position:0 100%;transition:color .2s}
a:hover{color:var(--claret-deep);background-size:100% 2px}
::selection{background:rgba(122,42,32,.18)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Masthead ---------- */
.masthead{padding:1.4rem 1rem 0;text-align:center}
.masthead-inner{max-width:72rem;margin:0 auto;border-top:3px double var(--ink);border-bottom:1px solid var(--ink);padding:.9rem 0 .7rem;position:relative}
.masthead-inner::after{content:"";position:absolute;left:0;right:0;bottom:-5px;border-bottom:1px solid var(--rule)}
.brand{display:inline-flex;flex-direction:column;align-items:center;gap:.1rem;background:none;color:var(--ink)}
.brand:hover{background:none;color:var(--ink)}
.brand-lat{font-family:var(--sc);font-size:.78rem;letter-spacing:.42em;color:var(--sepia);padding-left:.42em}
.brand-tc{font-size:1.65rem;font-weight:700;letter-spacing:.28em;padding-left:.28em;line-height:1.3}
.nav{margin-top:.55rem}
.nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;justify-content:center;gap:.2rem .2rem}
.nav li{display:flex;align-items:center}
.nav li+li::before{content:"";width:5px;height:5px;transform:rotate(45deg);border:1px solid var(--rule);margin:0 .75rem}
.nav a{background:none;color:var(--ink-soft);font-size:.92rem;letter-spacing:.14em}
.nav a:hover,.nav a[aria-current]{color:var(--claret)}
.nav .nav-cta{color:var(--claret);font-weight:700}
.menu-toggle{display:none}
@media (max-width:760px){
  .brand-tc{font-size:1.35rem;letter-spacing:.2em}
  .nav ul{gap:.1rem}
  .nav li+li::before{margin:0 .45rem}
  .nav a{font-size:.85rem;letter-spacing:.06em}
}

/* ---------- Layout ---------- */
main{display:block}
.wrap{max-width:72rem;margin:0 auto;padding:0 1rem}
.measure{max-width:var(--measure);margin-left:auto;margin-right:auto}

/* ---------- Engraved plate (frame) ---------- */
.plate{position:relative;padding:3.2rem 2.6rem;border:1px solid var(--ink);background:rgba(250,245,232,.55);
  box-shadow:0 0 0 6px var(--paper),0 0 0 7px var(--ink-soft),0 18px 40px -28px rgba(60,40,20,.5)}
.plate::before{content:"";position:absolute;inset:9px;border:1px solid var(--rule);pointer-events:none}
.plate::after{content:"";position:absolute;inset:13px;border:.5px solid rgba(139,113,80,.55);pointer-events:none}
.plate .corner{position:absolute;width:64px;height:64px;color:var(--ink);pointer-events:none}
.plate .corner.tl{top:-2px;left:-2px}
.plate .corner.tr{top:-2px;right:-2px;transform:scaleX(-1)}
.plate .corner.bl{bottom:-2px;left:-2px;transform:scaleY(-1)}
.plate .corner.br{bottom:-2px;right:-2px;transform:scale(-1,-1)}
@media (max-width:640px){.plate{padding:2.4rem 1.25rem}.plate .corner{width:44px;height:44px}}

/* ---------- Ornaments ---------- */
.fleuron{display:block;margin:1.8rem auto;width:min(320px,80%);height:24px;color:var(--rule)}
.rule-double{border:0;border-top:3px double var(--rule);margin:2.4rem auto;max-width:var(--measure)}
.sc{font-family:var(--sc);letter-spacing:.22em;text-transform:uppercase}
.eyebrow{font-family:var(--sc);font-size:.86rem;letter-spacing:.32em;color:var(--sepia);text-transform:uppercase}
.roman{font-family:var(--serif-lat);font-style:italic}

/* ---------- Title page (home hero) ---------- */
.titlepage{max-width:56rem;margin:2.4rem auto 0;text-align:center}
.titlepage .plate{padding:3.6rem 2.2rem 3.2rem}
.tp-lat{font-family:var(--sc);font-size:1.05rem;letter-spacing:.5em;padding-left:.5em;color:var(--ink-soft)}
.tp-title{font-size:clamp(2.3rem,6.4vw,4.1rem);letter-spacing:.32em;padding-left:.32em;line-height:1.25;margin:.4rem 0 .2rem;font-weight:900}
.tp-sub{font-size:clamp(1.02rem,2.4vw,1.25rem);color:var(--ink-soft);letter-spacing:.14em;margin:.3rem 0 0}
.tp-emblem{width:min(280px,70%);margin:1.6rem auto 1rem;color:var(--ink);display:block}
.tp-author{font-size:1rem;letter-spacing:.26em;margin:0}
.tp-author small{display:block;font-family:var(--serif-lat);font-style:italic;letter-spacing:.08em;color:var(--sepia);font-size:1rem}
.tp-imprint{margin-top:1.6rem;padding-top:1rem;border-top:1px solid var(--rule);display:inline-block;font-family:var(--sc);letter-spacing:.36em;font-size:.85rem;color:var(--sepia);padding-left:.36em}
.tp-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-top:1.8rem}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.55rem;padding:.78rem 1.6rem;border:1px solid var(--ink);background:transparent;color:var(--ink);
  font-family:var(--serif-tc);font-size:1rem;letter-spacing:.18em;position:relative;transition:background .2s,color .2s}
.btn::before{content:"";position:absolute;inset:3px;border:.5px solid var(--rule);pointer-events:none}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn-primary{background:var(--claret);border-color:var(--claret-deep);color:#fbf4e4}
.btn-primary::before{border-color:rgba(251,244,228,.55)}
.btn-primary:hover{background:var(--claret-deep);color:#fff}
.btn svg{width:18px;height:18px}

/* ---------- Section headings ---------- */
.sec-head{text-align:center;margin:4.2rem auto 1.8rem;max-width:var(--measure)}
.sec-head h2{font-size:1.75rem;letter-spacing:.3em;padding-left:.3em;margin:.2rem 0;font-weight:700}
.sec-head p{color:var(--ink-soft);margin:.3rem 0 0}

/* ---------- Preface ---------- */
.preface{max-width:var(--measure);margin:0 auto}
.preface p{text-indent:2em;margin:0 0 1.1rem}
.signature{text-align:right;font-style:italic;font-family:var(--serif-lat);color:var(--sepia);font-size:1.1rem;text-indent:0!important}

/* ---------- Table of contents ---------- */
.toc-book{max-width:48rem;margin:0 auto}
.volume{margin:0 0 2.6rem}
.volume-head{display:flex;align-items:baseline;gap:1rem;border-bottom:1px solid var(--ink);padding-bottom:.35rem;margin-bottom:.6rem}
.volume-num{font-family:var(--serif-lat);font-style:italic;font-size:1.5rem;color:var(--claret);min-width:3.2rem}
.volume-title{font-size:1.22rem;letter-spacing:.24em;font-weight:700;margin:0}
.volume-lat{margin-left:auto;font-family:var(--sc);font-size:.78rem;letter-spacing:.26em;color:var(--sepia)}
.toc-list{list-style:none;margin:0;padding:0}
.toc-list li{margin:0}
.toc-list a{display:flex;align-items:baseline;gap:.6rem;padding:.55rem 0;color:var(--ink);background:none;border-bottom:1px dotted rgba(139,113,80,.35)}
.toc-list a:hover{color:var(--claret)}
.toc-list .n{font-family:var(--serif-lat);font-style:italic;color:var(--sepia);min-width:2.4rem}
.toc-list .t{flex:0 1 auto}
.toc-list .t small{display:block;color:var(--sepia);font-size:.84rem;letter-spacing:.04em;line-height:1.6}
.toc-list .leader{flex:1 1 auto;border-bottom:1px dotted var(--rule);transform:translateY(-.35em);min-width:1.5rem}
.toc-list .p{font-family:var(--serif-lat);font-style:italic;color:var(--sepia);white-space:nowrap}
@media (max-width:560px){.toc-list .leader{display:none}.volume-lat{display:none}}

/* ---------- Ex libris / course plate ---------- */
.exlibris{max-width:50rem;margin:4.5rem auto 1rem;text-align:center}
.exlibris .plate{background:linear-gradient(rgba(250,245,232,.7),rgba(250,245,232,.7))}
.exlibris h2{font-size:clamp(1.6rem,4vw,2.3rem);letter-spacing:.24em;padding-left:.24em;margin:.4rem 0 .6rem}
.exlibris p{max-width:34rem;margin:.6rem auto;color:var(--ink-soft)}
.exlibris .points{list-style:none;padding:0;margin:1.4rem auto;max-width:30rem;text-align:left}
.exlibris .points li{padding:.45rem 0 .45rem 1.8rem;position:relative;border-bottom:1px dotted rgba(139,113,80,.4)}
.exlibris .points li::before{content:"";position:absolute;left:.3rem;top:1.05rem;width:7px;height:7px;transform:rotate(45deg);background:var(--claret)}

/* ---------- Plates grid (featured) ---------- */
.plates-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1.6rem;max-width:66rem;margin:0 auto}
.card{position:relative;display:block;padding:1.5rem 1.4rem 1.3rem;border:1px solid var(--ink-soft);background:rgba(250,245,232,.5);color:var(--ink);background-image:none;transition:transform .25s,box-shadow .25s}
.card::before{content:"";position:absolute;inset:5px;border:.5px solid var(--rule);pointer-events:none}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 30px -20px rgba(60,40,20,.55);color:var(--ink);background-size:0}
.card .motif{width:72px;height:72px;color:var(--ink);display:block;margin:0 auto .6rem}
.card .lbl{font-family:var(--sc);font-size:.74rem;letter-spacing:.28em;color:var(--sepia);text-align:center;display:block}
.card h3{font-size:1.12rem;letter-spacing:.08em;margin:.35rem 0 .4rem;text-align:center;line-height:1.55}
.card p{font-size:.92rem;color:var(--ink-soft);margin:0;line-height:1.8}

/* ---------- Article ---------- */
.breadcrumb{max-width:var(--measure);margin:1.6rem auto 0;font-size:.82rem;letter-spacing:.12em;color:var(--sepia)}
.breadcrumb ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.3rem}
.breadcrumb li+li::before{content:"›";margin-right:.35rem;color:var(--rule)}
.breadcrumb a{color:var(--sepia);background:none}
.art-head{max-width:50rem;margin:1.4rem auto 0;text-align:center}
.art-head .plate{padding:2.8rem 2rem 2.4rem}
.art-head .motif{width:92px;height:92px;margin:0 auto .4rem;color:var(--ink);display:block}
.art-head h1{font-size:clamp(1.7rem,4.6vw,2.55rem);letter-spacing:.1em;line-height:1.45;margin:.5rem 0 .6rem;font-weight:900}
.dek{font-size:1.06rem;color:var(--ink-soft);max-width:36rem;margin:0 auto;line-height:1.9}
.byline{margin-top:1.3rem;font-size:.86rem;letter-spacing:.14em;color:var(--sepia);display:flex;flex-wrap:wrap;justify-content:center;gap:.4rem 1.1rem}
.byline span+span::before{content:"";display:inline-block;width:4px;height:4px;transform:rotate(45deg) translateY(-3px);border:1px solid var(--rule);margin-right:1.1rem}

.art-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:2.5rem;max-width:66rem;margin:2.4rem auto 0}
@media (min-width:1100px){.art-layout{grid-template-columns:14rem minmax(0,var(--measure)) 1fr}.art-aside{grid-column:1}.prose{grid-column:2}}
.art-aside{display:none}
@media (min-width:1100px){.art-aside{display:block}.art-aside .sticky{position:sticky;top:1.5rem}}
.toc-mini{font-size:.86rem;line-height:1.7;border-top:3px double var(--rule);padding-top:.8rem}
.toc-mini .eyebrow{display:block;margin-bottom:.4rem;font-size:.72rem}
.toc-mini ol{list-style:none;padding:0;margin:0;counter-reset:t}
.toc-mini li{counter-increment:t;margin:.35rem 0;display:flex;gap:.5rem}
.toc-mini li::before{content:counter(t,upper-roman);font-family:var(--serif-lat);font-style:italic;color:var(--sepia);min-width:1.6rem}
.toc-mini a{color:var(--ink-soft);background:none}
.toc-mini a:hover{color:var(--claret)}

.toc-inline{border:1px solid var(--rule);padding:1rem 1.3rem;margin:0 0 2rem;background:rgba(250,245,232,.45)}
.toc-inline summary{cursor:pointer;font-family:var(--sc);letter-spacing:.28em;font-size:.82rem;color:var(--sepia);list-style:none}
.toc-inline summary::-webkit-details-marker{display:none}
.toc-inline ol{margin:.6rem 0 0;padding-left:1.4rem;font-size:.95rem}
@media (min-width:1100px){.toc-inline{display:none}}

.prose{max-width:var(--measure);margin:0 auto;min-width:0}
.prose>.toc-inline+p::first-letter{float:left;font-size:3.6em;line-height:1;margin:.12em .14em 0 0;font-weight:900;color:var(--claret);
  padding:.06em .1em;border:1px solid var(--rule);box-shadow:inset 0 0 0 3px var(--paper),inset 0 0 0 4px var(--rule)}
.prose p{margin:0 0 1.25rem;text-align:justify}
.prose h2{font-size:1.45rem;letter-spacing:.12em;margin:3rem 0 1rem;padding-top:1.6rem;position:relative;line-height:1.5;scroll-margin-top:1rem}
.prose h2::before{content:"";position:absolute;top:0;left:0;width:3.5rem;border-top:3px double var(--claret)}
.prose h3{font-size:1.15rem;letter-spacing:.08em;margin:2rem 0 .7rem;color:var(--ink);scroll-margin-top:1rem}
.prose h3::before{content:"";display:inline-block;width:6px;height:6px;transform:rotate(45deg) translateY(-4px);background:var(--claret);margin-right:.7rem}
.prose ul,.prose ol{padding-left:1.5rem;margin:0 0 1.3rem}
.prose li{margin:.3rem 0}
.prose ul li::marker{color:var(--claret)}
.prose ol li::marker{font-family:var(--serif-lat);font-style:italic;color:var(--claret)}
.prose strong{font-weight:700;color:var(--ink);background:linear-gradient(transparent 62%,rgba(156,122,60,.22) 62%)}
.prose blockquote{margin:2rem 0;padding:1.2rem 1.4rem 1.1rem 1.6rem;border-left:3px double var(--claret);background:rgba(235,225,202,.55);position:relative}
.prose blockquote::before{content:"伊登按";display:block;font-size:.78rem;letter-spacing:.3em;color:var(--claret);margin-bottom:.35rem;font-weight:700}
.prose blockquote p{margin:0 0 .6rem;text-align:left}
.prose blockquote p:last-child{margin-bottom:0}
.prose blockquote.note::before{content:"注意"}
.table-wrap{overflow-x:auto;margin:1.6rem 0 1.8rem;border-top:3px double var(--ink);border-bottom:1px solid var(--ink)}
.prose table{width:100%;border-collapse:collapse;font-size:.93rem;line-height:1.7;min-width:30rem}
.prose th{font-weight:700;text-align:left;padding:.65rem .7rem;border-bottom:1px solid var(--ink);letter-spacing:.06em;background:rgba(235,225,202,.5)}
.prose td{padding:.6rem .7rem;border-bottom:1px dotted var(--rule);vertical-align:top}
.prose tr:last-child td{border-bottom:0}
.prose hr{border:0;height:24px;margin:2.4rem auto;background:url("/assets/fleuron.svg") center/280px 24px no-repeat}
.prose code{font-family:var(--serif-lat);font-size:1em}

.keyfacts{border:1px solid var(--ink);padding:1.2rem 1.4rem;margin:0 0 2rem;position:relative;background:rgba(250,245,232,.6)}
.keyfacts::before{content:"";position:absolute;inset:4px;border:.5px solid var(--rule);pointer-events:none}
.keyfacts .eyebrow{display:block;margin-bottom:.4rem;font-size:.75rem}
.keyfacts p{margin:0;text-align:left}

/* inline CTA */
.cta-plate{margin:2.6rem 0;padding:1.6rem 1.6rem 1.5rem;border:1px solid var(--claret-deep);background:linear-gradient(135deg,rgba(122,42,32,.06),rgba(156,122,60,.08));position:relative;text-align:center}
.cta-plate::before{content:"";position:absolute;inset:5px;border:.5px solid rgba(122,42,32,.45);pointer-events:none}
.cta-plate .eyebrow{color:var(--claret)}
.cta-plate h3{margin:.35rem 0 .5rem!important;font-size:1.2rem;letter-spacing:.12em}
.cta-plate h3::before{display:none!important}
.cta-plate p{text-align:center!important;margin:0 auto 1rem!important;max-width:30rem;color:var(--ink-soft);font-size:.96rem}

/* FAQ */
.faq details{border-bottom:1px dotted var(--rule);padding:.8rem 0}
.faq summary{cursor:pointer;font-weight:700;list-style:none;display:flex;gap:.7rem;align-items:baseline}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"問";font-size:.8rem;color:var(--paper);background:var(--claret);padding:0 .35rem;letter-spacing:0;flex:none}
.faq details[open] summary{color:var(--claret)}
.faq .a{padding:.6rem 0 0 2rem}
.faq .a p{margin:0 0 .6rem}

/* tool */
.tool{border:1px solid var(--ink);padding:1.5rem 1.4rem;margin:2rem 0;background:rgba(250,245,232,.7);position:relative}
.tool::before{content:"";position:absolute;inset:5px;border:.5px solid var(--rule);pointer-events:none}
.tool .eyebrow{display:block;text-align:center;font-size:.76rem}
.tool h3{text-align:center;margin:.2rem 0 1rem!important}
.tool h3::before{display:none!important}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(10rem,1fr));gap:.9rem 1.2rem}
.tool label{display:block;font-size:.86rem;letter-spacing:.08em;color:var(--ink-soft);margin-bottom:.25rem}
.tool input,.tool select{width:100%;font:inherit;font-size:1rem;padding:.5rem .6rem;border:1px solid var(--rule);background:#fbf7ec;color:var(--ink);border-radius:0}
.tool input:focus,.tool select:focus{outline:2px solid rgba(122,42,32,.35);outline-offset:1px}
.tool-out{margin-top:1.1rem;border-top:3px double var(--rule);padding-top:.9rem;text-align:center}
.tool-out .big{font-size:1.7rem;font-weight:900;color:var(--claret);letter-spacing:.06em;display:block;line-height:1.4}
.tool-out small{color:var(--sepia);display:block;font-size:.84rem;line-height:1.7}

/* author box */
.author-box{display:grid;grid-template-columns:72px 1fr;gap:1.1rem;align-items:start;border-top:3px double var(--ink);border-bottom:1px solid var(--ink);padding:1.3rem 0;margin:3rem 0 0}
.author-box .seal{width:72px;height:72px;color:var(--claret)}
.author-box h4{margin:0 0 .2rem;font-size:1.02rem;letter-spacing:.14em}
.author-box p{margin:0;font-size:.92rem;color:var(--ink-soft);line-height:1.8;text-align:left!important}

/* related */
.related{max-width:66rem;margin:3.6rem auto 0}
.related .plates-grid{grid-template-columns:repeat(auto-fit,minmax(14rem,1fr))}

/* ---------- Colophon footer ---------- */
.colophon{margin-top:5rem;padding:2.6rem 1rem 3rem;text-align:center;border-top:1px solid var(--ink);position:relative}
.colophon::before{content:"";position:absolute;top:4px;left:0;right:0;border-top:3px double var(--rule)}
.colophon .fleuron{margin:0 auto 1.2rem}
.colophon .brand-tc{font-size:1.2rem}
.colophon p{margin:.4rem auto;max-width:44rem;font-size:.84rem;color:var(--sepia);line-height:1.9}
.colophon nav ul{list-style:none;padding:0;margin:1rem 0;display:flex;flex-wrap:wrap;justify-content:center;gap:.3rem 1.2rem;font-size:.86rem}
.colophon nav a{color:var(--ink-soft);background:none}
.colophon nav a:hover{color:var(--claret)}
.colophon .disclaimer{font-size:.78rem;max-width:40rem}

/* ---------- Simple pages ---------- */
.page-plate{max-width:50rem;margin:2rem auto 0}

/* ---------- Motion ---------- */
@media (prefers-reduced-motion:no-preference){
  .reveal{opacity:0;transform:translateY(10px);transition:opacity .8s ease,transform .8s ease}
  .reveal.in{opacity:1;transform:none}
  .tp-emblem .ring-text{transform-origin:150px 150px;animation:spin 120s linear infinite}
  @keyframes spin{to{transform:rotate(360deg)}}
}
@media print{.masthead .nav,.cta-plate,.related,.colophon nav{display:none}body{background:#fff}}

/* ---------- refinements ---------- */
.breadcrumb{max-width:50rem}
.card p{text-align:center}
@media (max-width:640px){
  .titlepage .plate{padding:2.6rem 1rem 2.4rem}
  .tp-lat{font-size:.72rem;letter-spacing:.24em;padding-left:.24em}
  .tp-title{font-size:2.05rem;letter-spacing:.12em;padding-left:.12em}
  .tp-sub{font-size:.95rem;letter-spacing:.04em}
  .tp-author small{font-size:.88rem}
  .art-head .plate{padding:2.2rem 1.1rem 2rem}
  .art-head h1{letter-spacing:.04em}
  .prose p{text-align:left}
  body{font-size:16.5px}
}
.prose{width:100%}

.prose td:first-child{white-space:nowrap}
@media (max-width:640px){.art-head .eyebrow{font-size:.68rem;letter-spacing:.18em}}