:root{
  --wine:#5B0F1E;
  --wine-mist:#8A2A3B;
  --gold:#C8A24A;
  --gold-light:#E4C97E;
  --green:#173F35;
  --sand:#E9DCC7;
  --paper:#F7F1E6;
  --ink:#1B1714;
  --amber:#B56A00;
  --deep:#0E1512;
  --rule:rgba(91,15,30,.16);
  --rule-gold:rgba(200,162,74,.55);
  --font-title:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --shell:1180px;
  --gutter:48px;
  --shadow-card:7px 7px 0 -1px var(--sand),7px 7px 0 0 rgba(91,15,30,.16);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-title);
  font-weight:900;
  line-height:1.08;
  letter-spacing:.015em;
  color:var(--wine);
}
h1{font-size:clamp(2.5rem,5vw,4rem)}
h2{font-size:clamp(1.75rem,3.2vw,2.25rem)}
h3{font-size:clamp(1.375rem,2.1vw,1.75rem)}
h4{font-size:1.125rem}
::selection{background:var(--gold-light);color:var(--deep)}
:focus-visible{
  outline:3px solid var(--amber);
  outline-offset:3px;
  border-radius:2px;
}
.site-footer :focus-visible{outline-color:var(--gold-light)}

/* ---------- shell & utilities ---------- */
.shell{
  width:min(var(--shell),calc(100% - var(--gutter)));
  margin-inline:auto;
}
.skip-link{
  position:absolute;
  left:50%;
  top:-80px;
  transform:translateX(-50%);
  z-index:200;
  padding:.7em 1.5em;
  background:var(--wine);
  color:var(--paper);
  font-size:.875rem;
  letter-spacing:.1em;
  text-decoration:none;
  border:1px solid var(--gold);
  transition:top .18s ease;
}
.skip-link:focus{top:10px}

.eyebrow{
  display:flex;
  align-items:center;
  gap:.7rem;
  font-family:var(--font-mono);
  font-size:.8125rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--wine-mist);
}
.eyebrow::before{
  content:"";
  width:26px;
  height:1px;
  flex:none;
  background:var(--gold);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:.45em;
  padding:.3em .72em;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.12em;
  line-height:1.5;
  color:var(--wine);
  background:rgba(228,201,126,.18);
  border:1px solid var(--rule-gold);
}
.tag--amber{color:var(--amber);border-color:rgba(181,106,0,.55);background:rgba(181,106,0,.1)}
.tag--green{color:var(--green);border-color:rgba(23,63,53,.4);background:rgba(23,63,53,.07)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding:.82em 1.55em;
  font-family:var(--font-body);
  font-size:.9375rem;
  font-weight:500;
  letter-spacing:.07em;
  line-height:1.4;
  text-decoration:none;
  border:1px solid transparent;
  border-radius:2px;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn--wine{background:var(--wine);color:var(--paper);border-color:var(--wine)}
.btn--wine:hover{background:var(--wine-mist);border-color:var(--wine-mist)}
.btn--gold{background:var(--gold);color:var(--deep);border-color:var(--gold)}
.btn--gold:hover{background:var(--gold-light);border-color:var(--gold-light)}
.btn--ghost{background:transparent;color:var(--wine);border-color:rgba(91,15,30,.42)}
.btn--ghost:hover{border-color:var(--wine);background:rgba(91,15,30,.07)}

/* ---------- header ---------- */
.site-header{
  position:relative;
  z-index:60;
  background:var(--paper);
  background-image:linear-gradient(180deg,rgba(233,220,199,.85),rgba(247,241,230,0) 130px);
  border-bottom:1px solid var(--rule);
}
.masthead{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  grid-template-areas:"meta brand cta";
  align-items:center;
  gap:clamp(12px,2vw,30px);
  padding:24px 0 18px;
}
.masthead__meta{
  grid-area:meta;
  display:flex;
  flex-direction:column;
  gap:3px;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.16em;
  line-height:1.6;
  color:rgba(27,23,20,.58);
  text-transform:uppercase;
}
.masthead__brand{
  grid-area:brand;
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:7px;
  padding:0 clamp(14px,3vw,40px);
  text-align:center;
  text-decoration:none;
}
.masthead__brand::before,
.masthead__brand::after{
  content:"";
  position:absolute;
  top:2px;
  bottom:2px;
  width:1px;
  background:linear-gradient(180deg,rgba(200,162,74,0),var(--rule-gold) 22%,var(--rule-gold) 78%,rgba(200,162,74,0));
}
.masthead__brand::before{left:0}
.masthead__brand::after{right:0}
.masthead__name{
  font-family:var(--font-title);
  font-weight:900;
  font-size:clamp(1.5rem,3.1vw,2.25rem);
  line-height:1.1;
  letter-spacing:.14em;
  text-indent:.14em;
  color:var(--wine);
}
.masthead__sub{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.34em;
  text-indent:.34em;
  text-transform:uppercase;
  color:var(--wine-mist);
}
.masthead__cta{
  grid-area:cta;
  justify-self:end;
  font-size:.8125rem;
  padding:.62em 1.1em;
}
.nav-toggle{
  display:none;
  grid-area:toggle;
  align-items:center;
  gap:.6em;
  padding:.62em .95em;
  background:transparent;
  color:var(--wine);
  border:1px solid rgba(91,15,30,.4);
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.16em;
  cursor:pointer;
}
.nav-toggle__bars{
  display:inline-flex;
  flex-direction:column;
  gap:3px;
  width:16px;
}
.nav-toggle__bars span{
  display:block;
  height:2px;
  background:currentColor;
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.site-nav{
  border-top:1px solid var(--rule-gold);
  background:linear-gradient(180deg,rgba(91,15,30,.045),rgba(91,15,30,0));
}
.site-nav__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:clamp(2px,1.4vw,24px);
  margin:0 auto;
  padding:9px 0;
  max-width:min(var(--shell),calc(100% - var(--gutter)));
  list-style:none;
}
.site-nav__item{display:block}
.site-nav__link{
  position:relative;
  display:inline-block;
  padding:.44em .72em;
  font-size:.9375rem;
  letter-spacing:.09em;
  color:var(--ink);
  text-decoration:none;
  transition:color .18s ease;
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:.72em;
  right:.72em;
  bottom:.16em;
  height:2px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.site-nav__link:hover{color:var(--wine)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--wine);font-weight:500}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--wine)}

/* ---------- footer ---------- */
.site-footer{
  margin-top:clamp(56px,8vw,104px);
  background:var(--green);
  color:var(--sand);
}
.site-footer::before{
  content:"";
  display:block;
  height:6px;
  background:repeating-linear-gradient(90deg,var(--gold) 0 16px,transparent 16px 34px);
}
.footer-main{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.35fr;
  gap:clamp(24px,4vw,56px);
  padding:clamp(38px,6vw,62px) 0 clamp(28px,4vw,42px);
}
.footer-brand__name{
  font-family:var(--font-title);
  font-weight:900;
  font-size:1.5rem;
  letter-spacing:.14em;
  line-height:1.25;
  color:var(--gold-light);
}
.footer-brand__line{
  margin-top:12px;
  max-width:28ch;
  font-size:.9375rem;
  line-height:1.8;
  color:rgba(233,220,199,.82);
}
.footer-brand__seal{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-top:20px;
  width:52px;
  height:52px;
  border:1px solid rgba(200,162,74,.8);
  border-radius:2px;
  color:var(--gold);
  font-family:var(--font-title);
  font-size:.875rem;
  letter-spacing:.24em;
  text-indent:.24em;
  writing-mode:vertical-rl;
}
.footer-col__title{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:.75rem;
  font-weight:400;
  letter-spacing:.22em;
  line-height:1.4;
  text-transform:uppercase;
  color:var(--gold);
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:9px;
  margin:0;
  padding:0;
  list-style:none;
}
.footer-links a{
  display:inline-block;
  padding-bottom:1px;
  font-size:.9375rem;
  color:rgba(233,220,199,.9);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-links a:hover{color:var(--gold-light);border-bottom-color:var(--rule-gold)}
.footer-links a[aria-current="page"]{color:var(--gold-light);border-bottom-color:var(--rule-gold)}
.footer-meta{
  display:flex;
  flex-direction:column;
  gap:13px;
  margin:0;
  padding:0;
  list-style:none;
}
.footer-meta__key{
  display:block;
  margin-bottom:2px;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.16em;
  color:rgba(200,162,74,.92);
}
.footer-meta__val{
  display:block;
  font-size:.9375rem;
  line-height:1.7;
  color:rgba(233,220,199,.92);
  overflow-wrap:anywhere;
}
.footer-base{
  background:var(--deep);
  border-top:1px solid rgba(200,162,74,.28);
}
.footer-base__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 26px;
  padding:16px 0;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.08em;
  color:rgba(233,220,199,.66);
}
.footer-base__mark{color:var(--gold)}

/* ---------- breadcrumb / prose ---------- */
.breadcrumb{
  font-family:var(--font-mono);
  font-size:.8125rem;
  letter-spacing:.08em;
  color:rgba(27,23,20,.62);
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.45rem;
  margin:0;
  padding:0;
  list-style:none;
}
.breadcrumb a{text-decoration:none;border-bottom:1px solid transparent}
.breadcrumb a:hover{color:var(--wine);border-bottom-color:var(--rule-gold)}
.breadcrumb li+li::before{content:"／";margin-right:.45rem;color:var(--gold)}
.breadcrumb [aria-current="page"]{color:var(--wine)}

.prose{max-width:68ch;font-size:1.0625rem;line-height:1.85;color:rgba(27,23,20,.9)}
.prose > * + *{margin-top:1.1em}
.prose h2,.prose h3{margin-top:1.9em;color:var(--wine)}
.prose ul,.prose ol{padding-left:1.35em}
.prose li + li{margin-top:.45em}
.prose a{color:var(--wine);text-decoration:none;border-bottom:1px solid var(--rule-gold)}
.prose a:hover{border-bottom-color:var(--wine)}
.prose strong{color:var(--wine);font-weight:500}
.prose blockquote{
  margin:1.6em 0;
  padding:.2em 0 .2em 1.2em;
  border-left:3px solid var(--gold);
  font-family:var(--font-title);
  font-size:1.125rem;
  color:var(--wine);
}

/* ---------- grid ---------- */
.grid{display:grid;gap:clamp(18px,2.6vw,36px)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--12 > *{grid-column:span 12}
@media (min-width:880px){
  .grid--12 > .col-2{grid-column:span 2}
  .grid--12 > .col-3{grid-column:span 3}
  .grid--12 > .col-4{grid-column:span 4}
  .grid--12 > .col-5{grid-column:span 5}
  .grid--12 > .col-6{grid-column:span 6}
  .grid--12 > .col-7{grid-column:span 7}
  .grid--12 > .col-8{grid-column:span 8}
  .grid--12 > .col-9{grid-column:span 9}
  .grid--12 > .col-10{grid-column:span 10}
}

/* ---------- figure ---------- */
.figure{
  position:relative;
  margin:0;
  padding:10px;
  background:var(--sand);
  border:1px solid var(--rule);
}
.figure__frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:4/3;
  background:linear-gradient(155deg,#d9c7a6 0%,#e9dcc7 46%,#c9b28a 100%);
}
.figure__frame img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.figure__frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  box-shadow:inset 0 0 60px 14px rgba(27,23,20,.24);
}
.figure--wide .figure__frame{aspect-ratio:16/9}
.figure--tall .figure__frame{aspect-ratio:3/4}
.figure--square .figure__frame{aspect-ratio:1/1}
.figure__caption{
  display:flex;
  gap:.6em;
  margin-top:9px;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.07em;
  line-height:1.6;
  color:rgba(27,23,20,.62);
}
.figure__caption span:first-child{color:var(--amber);flex:none}

/* ---------- archive card ---------- */
.archive-card{
  position:relative;
  padding:clamp(20px,2.4vw,30px);
  background:#FBF6EC;
  border:1px solid var(--rule);
  box-shadow:var(--shadow-card);
}
.archive-card > * + *{margin-top:.85em}
.archive-card__no{
  display:block;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.2em;
  color:var(--gold);
}
.archive-card h3{font-size:1.25rem;line-height:1.35}
.archive-card p{font-size:.9375rem;line-height:1.8;color:rgba(27,23,20,.82)}

/* ---------- injected reading aids ---------- */
.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:3px;
  z-index:150;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--wine),var(--gold) 58%,var(--gold-light));
  pointer-events:none;
}
.to-top{
  position:fixed;
  right:clamp(14px,3vw,30px);
  bottom:clamp(14px,3vw,30px);
  z-index:140;
  display:inline-flex;
  align-items:center;
  gap:.5em;
  padding:.66em 1em;
  background:var(--green);
  color:var(--gold-light);
  border:1px solid rgba(200,162,74,.75);
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.14em;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s,background-color .18s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--wine)}

/* ---------- reveal ---------- */
html.has-js-reveal [data-reveal]{
  opacity:0;
  transform:translateY(10px);
  transition:opacity .55s ease,transform .55s ease;
}
html.has-js-reveal [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- toc ---------- */
[data-toc] a{text-decoration:none}
[data-toc] a.is-active{color:var(--wine);font-weight:500}

/* ---------- responsive ---------- */
@media (max-width:900px){
  :root{--gutter:36px}
  .masthead{
    grid-template-columns:1fr auto;
    grid-template-areas:
      "brand toggle"
      "cta cta";
    row-gap:14px;
    padding:18px 0 16px;
  }
  .masthead__meta{display:none}
  .masthead__brand{align-items:flex-start;text-align:left;padding:0}
  .masthead__brand::before,
  .masthead__brand::after{display:none}
  .masthead__name{font-size:1.5rem}
  .masthead__cta{justify-self:start}
  .nav-toggle{display:inline-flex}
  .site-nav{display:none}
  .site-nav[data-open="true"]{display:block}
  .site-nav__list{
    flex-direction:column;
    flex-wrap:nowrap;
    align-items:stretch;
    gap:0;
    padding:0 0 10px;
  }
  .site-nav__item{border-top:1px solid rgba(91,15,30,.1)}
  .site-nav__item:first-child{border-top:0}
  .site-nav__link{display:block;padding:.9em .3em;font-size:1rem}
  .site-nav__link::after{display:none}
  .site-nav__link[aria-current="page"]{
    border-left:3px solid var(--gold);
    padding-left:.85em;
  }
  .footer-main{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
  .footer-base__inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  :root{--gutter:32px}
  body{font-size:16px}
  .footer-main{grid-template-columns:1fr;gap:28px}
  .footer-brand{grid-column:auto}
  .figure{padding:7px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.has-js-reveal [data-reveal]{opacity:1;transform:none}
  .to-top{transition:opacity .001ms linear,visibility .001ms linear}
}