:root{
  --ink:#0B0C0E;
  --ink-2:#15171B;
  --char:#242830;
  --gold:#C9A45C;
  --gold-lt:#E8CC92;
  --cinnabar:#B93A32;
  --celadon:#7FA79A;
  --cream:#F3EBDD;
  --paper:#FBF7EF;
  --glass:rgba(201,164,92,.14);
  --rule:rgba(243,235,221,.18);
  --rule-strong:rgba(243,235,221,.34);
  --panel:#15171B;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-mono:"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --shell:1360px;
  --gutter:clamp(18px,4vw,56px);
  --header-h:78px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 16px);
}

html,body{margin:0;padding:0;}

body{
  background:var(--ink);
  color:var(--cream);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

main{display:block;}
#main-content{scroll-margin-top:calc(var(--header-h) + 16px);}

h1,h2,h3,h4,h5,h6{
  margin:0 0 .6em;
  line-height:1.16;
  font-weight:800;
  letter-spacing:.06em;
  color:inherit;
}
h1{font-size:clamp(32px,5.2vw,72px);letter-spacing:.08em;}
h2{font-size:clamp(26px,3.4vw,44px);letter-spacing:.09em;}
h3{font-size:clamp(19px,2vw,24px);font-weight:700;letter-spacing:.05em;}
h4{font-size:16px;font-weight:700;letter-spacing:.12em;}

p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}

a{color:var(--gold-lt);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--gold);}

ul,ol{margin:0 0 1em;padding-left:1.2em;}

img,svg{max-width:100%;}
img{display:block;height:auto;}

button{font:inherit;color:inherit;}

.num,.stat__value,.card__index,.footer-contact__key{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
}

:where(a,button,summary,[tabindex]):focus-visible{
  outline:2px solid var(--gold-lt);
  outline-offset:3px;
}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;
  left:12px;
  top:10px;
  z-index:300;
  display:inline-block;
  padding:10px 20px;
  background:var(--gold);
  color:#12100B;
  font-size:14px;
  font-weight:700;
  letter-spacing:.08em;
  transform:translateY(-190%);
  transition:transform .2s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{
  transform:translateY(0);
  color:#12100B;
  outline:2px solid var(--gold-lt);
  outline-offset:2px;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(11,12,14,.9);
  border-bottom:1px solid var(--rule);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header[data-scrolled="true"]{
  background:rgba(11,12,14,.97);
  box-shadow:0 1px 0 rgba(201,164,92,.22),0 22px 44px -28px rgba(0,0,0,.95);
}
.header-frame{position:relative;}

.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  transform:scaleX(var(--progress,0));
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cinnabar),var(--gold) 45%,var(--gold-lt));
  pointer-events:none;
  z-index:2;
}

.header-inner{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  min-height:var(--header-h);
  padding:12px var(--gutter);
  display:flex;
  align-items:center;
  gap:clamp(14px,2vw,32px);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:14px;
  text-decoration:none;
  color:var(--cream);
  flex:none;
}
.brand:hover{color:var(--cream);}
.brand__mark{
  width:44px;
  height:44px;
  flex:none;
  display:grid;
  place-items:center;
  border:1px solid var(--gold);
  color:var(--gold);
  background:rgba(201,164,92,.1);
  font-family:var(--font-mono);
  font-size:15px;
  font-weight:700;
  letter-spacing:.08em;
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;gap:2px;}
.brand__name{
  font-size:17px;
  font-weight:800;
  letter-spacing:.12em;
  line-height:1.2;
  color:var(--cream);
}
.brand__tag{
  font-size:10.5px;
  font-weight:500;
  letter-spacing:.24em;
  line-height:1.3;
  color:var(--gold);
  opacity:.85;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:0 14px;
  margin-left:auto;
  background:rgba(201,164,92,.08);
  border:1px solid rgba(201,164,92,.42);
  color:var(--gold-lt);
  font-family:var(--font-sans);
  font-size:13px;
  font-weight:600;
  letter-spacing:.18em;
  cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(201,164,92,.16);border-color:var(--gold);}
.nav-toggle__bars{display:grid;gap:4px;width:18px;}
.nav-toggle__bar{display:block;height:1px;background:currentColor;transform-origin:center;transition:transform .24s var(--ease),opacity .18s var(--ease);}
.site-header[data-open="true"] .nav-toggle__bar:nth-child(1){transform:translateY(5px) rotate(45deg);}
.site-header[data-open="true"] .nav-toggle__bar:nth-child(2){opacity:0;}
.site-header[data-open="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
.nav-toggle__label{white-space:nowrap;}

.site-nav{
  display:flex;
  align-items:center;
  gap:clamp(16px,2vw,32px);
  margin-left:auto;
}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(12px,1.5vw,24px);
  list-style:none;
  margin:0;
  padding:0;
}
.site-nav__link{
  position:relative;
  display:inline-block;
  padding:8px 0;
  font-size:14px;
  font-weight:600;
  letter-spacing:.14em;
  color:rgba(243,235,221,.68);
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:2px;
  height:1px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease);
}
.site-nav__link:hover,
.site-nav__link:focus-visible{color:var(--gold-lt);}
.site-nav__link:hover::after{transform:scaleX(1);}
.site-nav__link[aria-current="page"]{color:var(--gold-lt);}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--gold-lt);}

.site-nav__actions{display:flex;align-items:center;gap:10px;}

/* ---------- buttons ---------- */
.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  min-height:44px;
  padding:0 20px;
  border:1px solid transparent;
  background:transparent;
  color:var(--cream);
  font-family:var(--font-sans);
  font-size:13.5px;
  font-weight:700;
  letter-spacing:.12em;
  line-height:1.2;
  text-align:center;
  text-decoration:none;
  white-space:nowrap;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn::after{
  content:"";
  position:absolute;
  right:-1px;
  bottom:-1px;
  width:8px;
  height:8px;
  border-right:1px solid currentColor;
  border-bottom:1px solid currentColor;
  opacity:.55;
  pointer-events:none;
}
.btn:hover{transform:translateY(-1px);}
.btn--gold{background:var(--gold);color:#12100B;border-color:var(--gold);}
.btn--gold:hover{background:var(--gold-lt);border-color:var(--gold-lt);color:#12100B;}
.btn--ghost{background:rgba(201,164,92,.07);border-color:rgba(201,164,92,.5);color:var(--gold-lt);}
.btn--ghost:hover{background:rgba(201,164,92,.16);border-color:var(--gold);color:var(--gold-lt);}
.btn--seal{background:var(--cinnabar);border-color:var(--cinnabar);color:#F8F1E4;}
.btn--seal:hover{background:#a83029;border-color:#a83029;color:#F8F1E4;}

/* ---------- layout ---------- */
.wrap{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.section{padding-block:clamp(48px,7vw,104px);}

.section--paper{
  --rule:rgba(11,12,14,.14);
  --rule-strong:rgba(11,12,14,.3);
  --panel:#FFFFFF;
  --gold:#8A6A2E;
  --gold-lt:#6E5320;
  background:var(--paper);
  color:#14161A;
}
.section--paper .prose{color:#2A2E36;}

.rule-scale{
  height:8px;
  border:0;
  margin:0;
  background-image:repeating-linear-gradient(to right,var(--rule-strong) 0 1px,transparent 1px 14px);
  opacity:.55;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.7em;
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--gold);
}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor;flex:none;}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px 32px;
  padding-bottom:18px;
  margin-bottom:clamp(24px,3.3vw,44px);
  border-bottom:1px solid var(--rule);
}
.section-head > *{margin-bottom:0;}
.section-head p{max-width:52ch;font-size:15px;color:rgba(243,235,221,.62);}
.section--paper .section-head p{color:rgba(20,22,26,.66);}

.grid{display:grid;gap:clamp(16px,2.4vw,32px);}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr);}
.grid--8-4{grid-template-columns:minmax(0,8fr) minmax(0,4fr);}

/* ---------- panels & cards ---------- */
.panel{
  position:relative;
  padding:clamp(20px,2.8vw,36px);
  background:var(--panel);
  border:1px solid var(--rule);
}
.panel--glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid rgba(201,164,92,.34);
}
.panel--offset{margin-left:clamp(0px,3.5vw,48px);}

.card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:clamp(18px,2.4vw,28px);
  background:var(--panel);
  border:1px solid var(--rule);
  transition:border-color .25s var(--ease),transform .25s var(--ease),background .25s var(--ease);
}
.card:hover{border-color:rgba(201,164,92,.55);transform:translateY(-2px);}
.card__index{
  font-size:12px;
  letter-spacing:.2em;
  color:var(--gold);
}

.stat{display:flex;flex-direction:column;gap:6px;}
.stat__value{
  font-size:clamp(28px,4vw,48px);
  font-weight:700;
  line-height:1;
  letter-spacing:.02em;
  color:var(--gold-lt);
}
.stat__unit{font-size:.48em;margin-left:.12em;color:var(--gold);letter-spacing:0;}
.stat__label{
  font-size:13px;
  letter-spacing:.14em;
  color:rgba(243,235,221,.6);
}
.section--paper .stat__label{color:rgba(20,22,26,.62);}

.tag{
  display:inline-flex;
  align-items:center;
  gap:.45em;
  padding:4px 10px;
  border:1px solid var(--rule-strong);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--gold-lt);
  white-space:nowrap;
}
.tag::before{content:"";width:5px;height:5px;background:currentColor;transform:rotate(45deg);flex:none;}
.tag--celadon{color:var(--celadon);border-color:rgba(127,167,154,.5);}
.tag--seal{background:var(--cinnabar);border-color:transparent;color:#F8F1E4;}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  padding-block:18px 0;
  font-size:13px;
  letter-spacing:.08em;
  color:rgba(243,235,221,.55);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:.55em;list-style:none;margin:0;padding:0;}
.breadcrumb li{display:flex;align-items:center;}
.breadcrumb li + li::before{content:"/";margin-right:.55em;color:var(--rule-strong);}
.breadcrumb a{color:inherit;}
.breadcrumb a:hover{color:var(--gold-lt);}
.section--paper .breadcrumb{color:rgba(20,22,26,.55);}

/* ---------- prose ---------- */
.prose{
  max-width:72ch;
  font-size:17px;
  line-height:1.9;
  color:rgba(243,235,221,.84);
}
.prose h3{margin-top:1.7em;color:inherit;}
.prose h3:first-child{margin-top:0;}
.prose ul,.prose ol{padding-left:1.25em;}
.prose li{margin-bottom:.5em;}
.prose strong{color:var(--gold-lt);font-weight:700;}
.section--paper .prose strong{color:#6E5320;}
.prose hr{border:0;border-top:1px solid var(--rule);margin:2em 0;}

/* ---------- media ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  width:100%;
  background:var(--char);
  border:1px solid var(--rule);
  isolation:isolate;
}
.media img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.92) contrast(1.02);
  transition:transform .6s var(--ease);
}
.media:hover img{transform:scale(1.02);}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:linear-gradient(180deg,rgba(11,12,14,0) 42%,rgba(11,12,14,.55) 100%);
  pointer-events:none;
}
.media--square{aspect-ratio:1 / 1;}
.media--portrait{aspect-ratio:3 / 4;}
.media--wide{aspect-ratio:16 / 9;}
.media--grain::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:2;
  pointer-events:none;
  opacity:.15;
  background-image:radial-gradient(rgba(243,235,221,.55) .5px,transparent .6px);
  background-size:3px 3px;
}

/* ---------- accordion ---------- */
.accordion{border-top:1px solid var(--rule);}
.accordion__item{border-bottom:1px solid var(--rule);}
.accordion__trigger{
  display:flex;
  align-items:center;
  gap:16px;
  width:100%;
  padding:18px 0;
  background:none;
  border:0;
  color:inherit;
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:700;
  letter-spacing:.06em;
  line-height:1.5;
  text-align:left;
  cursor:pointer;
  transition:color .2s var(--ease);
}
.accordion__trigger:hover{color:var(--gold-lt);}
.accordion__index{
  flex:none;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--gold);
}
.accordion__icon{
  position:relative;
  flex:none;
  width:14px;
  height:14px;
  margin-left:auto;
  color:var(--gold);
}
.accordion__icon::before,
.accordion__icon::after{content:"";position:absolute;background:currentColor;}
.accordion__icon::before{left:0;right:0;top:50%;height:1px;}
.accordion__icon::after{top:0;bottom:0;left:50%;width:1px;transition:transform .25s var(--ease);}
[aria-expanded="true"] .accordion__icon::after{transform:scaleY(0);}
[aria-expanded="true"] .accordion__index{color:var(--gold-lt);}
.accordion__panel{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .3s var(--ease);
}
.accordion__item[data-open="true"] .accordion__panel{grid-template-rows:1fr;}
.accordion__panel-inner{
  overflow:hidden;
  font-size:15.5px;
  line-height:1.85;
  color:rgba(243,235,221,.78);
}
.accordion__item[data-open="true"] .accordion__panel-inner{padding-bottom:20px;}
.section--paper .accordion__panel-inner{color:rgba(20,22,26,.78);}

/* ---------- toc / scrollspy ---------- */
.toc{position:sticky;top:calc(var(--header-h) + 24px);}
.toc__title{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.28em;
  color:var(--gold);
}
.toc__list{list-style:none;margin:0;padding:0;display:grid;gap:2px;}
.toc__link{
  position:relative;
  display:block;
  padding:10px 0 10px 18px;
  border-left:1px solid var(--rule);
  font-size:14px;
  letter-spacing:.08em;
  color:rgba(243,235,221,.6);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.toc__link::before{
  content:"";
  position:absolute;
  left:-1px;
  top:50%;
  width:2px;
  height:0;
  background:var(--gold);
  transform:translateY(-50%);
  transition:height .25s var(--ease);
}
.toc__link:hover{color:var(--gold-lt);}
.toc__link[aria-current="true"]{color:var(--gold-lt);}
.toc__link[aria-current="true"]::before{height:22px;}

/* ---------- reveal ---------- */
html[data-js="on"] [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
  will-change:opacity,transform;
}
html[data-js="on"] [data-reveal].is-revealed{
  opacity:1;
  transform:none;
}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  background:var(--ink);
  border-top:1px solid var(--rule);
  color:var(--cream);
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:0;
  height:8px;
  background-image:repeating-linear-gradient(to right,var(--rule-strong) 0 1px,transparent 1px 14px);
  opacity:.5;
  pointer-events:none;
}
.footer-inner{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:clamp(48px,6vw,84px) var(--gutter) 28px;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr) minmax(0,1.15fr);
  gap:clamp(28px,4vw,64px);
  align-items:start;
}
.footer-brand{display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
.footer-brand__line{
  margin:0;
  max-width:34ch;
  font-size:15px;
  font-weight:700;
  letter-spacing:.1em;
  line-height:1.7;
  color:var(--cream);
}
.footer-note{
  margin:0;
  max-width:38ch;
  font-size:12.5px;
  line-height:1.8;
  letter-spacing:.04em;
  color:rgba(243,235,221,.5);
}
.footer-contact__title{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.28em;
  color:var(--gold);
}
.footer-index__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px 18px;
}
.footer-index__list a{
  display:flex;
  align-items:center;
  gap:.65em;
  font-size:14.5px;
  letter-spacing:.08em;
  color:rgba(243,235,221,.72);
  text-decoration:none;
}
.footer-index__list a::before{
  content:"";
  flex:none;
  width:6px;
  height:6px;
  border:1px solid var(--gold);
  transform:rotate(45deg);
  opacity:.8;
  transition:background .2s var(--ease);
}
.footer-index__list a:hover{color:var(--gold-lt);}
.footer-index__list a:hover::before{background:var(--gold);}
.footer-index__list a[aria-current="page"]{color:var(--gold-lt);}
.footer-index__list a[aria-current="page"]::before{background:var(--gold);}

.footer-contact{display:flex;flex-direction:column;gap:10px;}
.footer-contact__row{
  display:flex;
  align-items:baseline;
  gap:12px;
  margin:0;
  font-size:14.5px;
  line-height:1.7;
  color:rgba(243,235,221,.82);
}
.footer-contact__key{
  flex:none;
  min-width:44px;
  font-size:11px;
  letter-spacing:.18em;
  color:var(--gold);
}
.footer-contact a{
  color:rgba(243,235,221,.86);
  border-bottom:1px solid transparent;
  word-break:break-all;
}
.footer-contact a:hover{color:var(--gold-lt);border-bottom-color:var(--gold);}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 28px;
  margin-top:clamp(32px,4vw,56px);
  padding-top:20px;
  border-top:1px solid var(--rule);
}
.footer-meta{
  margin:0;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.1em;
  color:rgba(243,235,221,.55);
}
.footer-legal{display:flex;flex-wrap:wrap;gap:8px 22px;}
.footer-legal a{
  font-size:12.5px;
  letter-spacing:.12em;
  color:rgba(243,235,221,.6);
  text-decoration:none;
  border-bottom:1px solid transparent;
}
.footer-legal a:hover{color:var(--gold-lt);border-bottom-color:var(--gold);}
.footer-legal a[aria-current="page"]{color:var(--gold-lt);}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .site-nav__link{font-size:13px;letter-spacing:.1em;}
  .site-nav__actions .btn{padding:0 14px;font-size:12.5px;}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:940px){
  :root{--header-h:70px;}
  .nav-toggle{display:inline-flex;}
  .brand__tag{display:none;}
  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    z-index:130;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin-left:0;
    padding:6px var(--gutter) 24px;
    background:#0B0C0E;
    border-bottom:1px solid var(--rule);
    box-shadow:0 28px 48px -20px rgba(0,0,0,.9);
    visibility:hidden;
    opacity:0;
    transform:translateY(-10px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
  }
  .site-header[data-open="true"] .site-nav{
    visibility:visible;
    opacity:1;
    transform:none;
  }
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;}
  .site-nav__list li + li{border-top:1px solid var(--rule);}
  .site-nav__link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:16px 0;
    font-size:16px;
    letter-spacing:.12em;
  }
  .site-nav__link::after{display:none;}
  .site-nav__link[aria-current="page"]{color:var(--gold-lt);}
  .site-nav__link[aria-current="page"]::before{
    content:"";
    width:6px;
    height:6px;
    background:var(--gold);
    transform:rotate(45deg);
  }
  .site-nav__actions{flex-direction:column;align-items:stretch;gap:10px;margin-top:20px;}
  .site-nav__actions .btn{width:100%;min-height:46px;font-size:14px;}

  .grid--2,.grid--3,.grid--7-5,.grid--8-4{grid-template-columns:minmax(0,1fr);}
  .panel--offset{margin-left:0;}
  .footer-top{grid-template-columns:minmax(0,1fr);}
  .footer-index__list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .toc{position:static;}
}

@media (max-width:640px){
  .header-inner{padding:10px var(--gutter);gap:12px;}
  .brand{gap:10px;}
  .brand__mark{width:38px;height:38px;font-size:13px;}
  .brand__name{font-size:15px;letter-spacing:.08em;}
  .nav-toggle{padding:0 11px;letter-spacing:.12em;}
  .footer-index__list{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .prose{font-size:16px;line-height:1.85;}
  .accordion__trigger{font-size:15px;gap:12px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html[data-js="on"] [data-reveal]{opacity:1;transform:none;}
  .btn:hover,.card:hover{transform:none;}
  .media:hover img{transform:none;}
}