:root{
  --moss:#2E6B4E;
  --vivid:#3FA96B;
  --ink:#152A3E;
  --gold:#C9A24A;
  --moss-bg:#E6EDE6;
  --paper:#F5F2E9;
  --rock:#6C7683;
  --clay:#A9563B;
  --line:#C9D2CC;
  --graphite:#1A1D1F;
  --card:#FBF9F3;

  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;

  --pad:clamp(16px,4vw,44px);
  --shell:min(1280px,100% - var(--pad) * 2);
  --gap:clamp(14px,2vw,24px);
  --hair:1px;
  --radius:2px;
  --speed:240ms;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{
  margin:0;
  background:var(--paper);
  color:var(--graphite);
  font-family:var(--sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img,svg,picture{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
hr{margin:0;border:0}

h1,h2,h3,h4,h5,h6,p{margin:0}
h1,h2{
  font-family:var(--serif);
  font-weight:700;
  color:var(--ink);
  line-height:1.14;
  letter-spacing:-.01em;
}
h1{font-size:clamp(34px,5vw,64px)}
h2{font-size:clamp(26px,3.4vw,42px)}
h3{
  font-family:var(--sans);
  font-size:clamp(19px,2vw,23px);
  font-weight:600;
  line-height:1.4;
  color:var(--ink);
}
h4{font-family:var(--sans);font-size:17px;font-weight:600;line-height:1.45;color:var(--ink)}
p{margin-bottom:1.2em}
p:last-child{margin-bottom:0}
strong{font-weight:700;color:var(--ink)}
.num,.mono{font-family:var(--mono);font-size:15px;letter-spacing:.02em}

:focus-visible{outline:2px solid var(--moss);outline-offset:2px}
.header-rail :focus-visible{outline-color:var(--gold)}
.site-footer :focus-visible{outline-color:var(--vivid)}

.skip-link{
  position:absolute;
  left:12px;
  top:-72px;
  z-index:120;
  padding:12px 18px;
  background:var(--moss);
  color:var(--paper);
  font:700 13px/1 var(--sans);
  letter-spacing:.08em;
  border-radius:var(--radius);
  transition:top 160ms ease;
}
.skip-link:focus{top:10px}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--paper);
  border-bottom:var(--hair) solid var(--line);
}
.scroll-progress{
  position:absolute;
  left:0;
  bottom:-1px;
  width:100%;
  height:2px;
  background:linear-gradient(90deg,var(--vivid),var(--gold));
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform 120ms linear;
  pointer-events:none;
}
.header-rail{
  background:var(--ink);
  color:var(--paper);
  border-bottom:1px solid rgba(201,162,74,.45);
}
.rail-inner{
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,26px);
  min-height:58px;
  padding:6px var(--pad);
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{display:flex;align-items:flex-end;gap:3px;height:24px;width:15px}
.brand-mark i{display:block;width:3px}
.brand-mark i:nth-child(1){height:9px;background:rgba(245,242,233,.5)}
.brand-mark i:nth-child(2){height:16px;background:var(--vivid)}
.brand-mark i:nth-child(3){height:24px;background:var(--gold)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font:700 16px/1.15 var(--sans);letter-spacing:.06em;color:var(--paper)}
.brand-sub{font:400 11px/1.35 var(--sans);letter-spacing:.16em;color:rgba(245,242,233,.62)}
.rail-ticks{
  flex:1 1 auto;
  min-width:20px;
  height:22px;
  background-image:repeating-linear-gradient(90deg,rgba(245,242,233,.3) 0 1px,transparent 1px 12px);
  background-repeat:repeat-x;
  background-size:12px 8px;
  background-position:0 100%;
}
.rail-actions{display:flex;align-items:center;gap:clamp(8px,1.5vw,18px);flex:0 0 auto}
.rail-stat{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.02em;
  color:rgba(245,242,233,.68);
  white-space:nowrap;
}
.rail-stat b{color:var(--vivid);font-weight:700}
.rail-cta{white-space:nowrap}

.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  margin-left:auto;
  padding:0 14px;
  border:1px solid rgba(245,242,233,.42);
  border-radius:var(--radius);
  background:transparent;
  color:var(--paper);
  font:700 12px/1 var(--sans);
  letter-spacing:.14em;
  cursor:pointer;
  transition:border-color 160ms ease,color 160ms ease;
}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold)}
.nav-toggle-bars{display:grid;gap:4px;width:16px}
.nav-toggle-bars i{display:block;height:1px;background:currentColor;transition:transform 200ms ease}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:first-child{transform:translateY(2.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:last-child{transform:translateY(-2.5px) rotate(-45deg)}
.nav-toggle-label{font:700 12px/1 var(--sans);letter-spacing:.14em}

.site-nav{
  background:var(--paper);
  max-height:0;
  overflow:hidden;
  border-bottom:1px solid transparent;
  transition:max-height 280ms ease,border-color 200ms ease;
}
.site-nav[data-open]{
  max-height:min(72vh,560px);
  overflow:auto;
  border-bottom-color:var(--line);
}
.nav-list{display:flex;flex-direction:column}
.nav-list a{
  display:flex;
  align-items:center;
  gap:12px;
  min-height:48px;
  padding:0 var(--pad);
  border-top:var(--hair) solid var(--line);
  color:var(--ink);
  font:600 15px/1.2 var(--sans);
  transition:background-color 160ms ease,color 160ms ease;
}
.nav-idx{font-family:var(--mono);font-size:11px;letter-spacing:.02em;color:var(--rock)}
.nav-label{display:inline-block}
.nav-list a:hover{background:var(--moss-bg)}
.nav-list a[aria-current="page"]{
  color:var(--moss);
  background:linear-gradient(90deg,var(--moss-bg),rgba(230,237,230,0) 72%);
}
.nav-list a[aria-current="page"] .nav-idx{color:var(--gold)}

/* ---------- buttons / chips ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 18px;
  border:1px solid transparent;
  border-radius:var(--radius);
  background:transparent;
  font:700 13px/1 var(--sans);
  letter-spacing:.08em;
  cursor:pointer;
  transition:background-color 160ms ease,color 160ms ease,border-color 160ms ease;
}
.btn-primary{background:var(--moss);border-color:var(--moss);color:var(--paper)}
.btn-primary:hover{background:var(--vivid);border-color:var(--vivid);color:var(--ink)}
.btn-ghost{border-color:rgba(245,242,233,.42);color:var(--paper)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn-outline{border-color:var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--moss);color:var(--moss)}
.btn-sm{min-height:38px;padding:0 14px;font-size:12px}

.chip{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 16px;
  border:var(--hair) solid var(--line);
  border-radius:var(--radius);
  background:transparent;
  color:var(--ink);
  font:700 12px/1 var(--sans);
  letter-spacing:.08em;
  cursor:pointer;
  transition:background-color 180ms ease,color 180ms ease,border-color 180ms ease;
}
.chip:hover{border-color:var(--moss);color:var(--moss)}
.chip[aria-pressed="true"]{background:var(--moss);border-color:var(--moss);color:var(--paper)}

/* ---------- layout ---------- */
.shell{width:var(--shell);margin-inline:auto}
.section{padding-block:clamp(40px,6vw,88px)}
.section--tight{padding-block:clamp(28px,4vw,56px)}
.section--moss{background:var(--moss-bg)}
.section--ink{background:var(--ink);color:rgba(245,242,233,.86)}
.section--ink h1,.section--ink h2,.section--ink h3,.section--ink h4{color:var(--paper)}
.section--ink .lede{color:rgba(245,242,233,.8)}
.section--ink .eyebrow{color:var(--vivid)}
.rule{height:1px;background:var(--line)}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
  font:700 12px/1 var(--sans);
  letter-spacing:.18em;
  color:var(--moss);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold)}
.lede{
  max-width:64ch;
  font-size:clamp(16px,1.6vw,18px);
  line-height:1.8;
  color:#3E4753;
}

/* ---------- grid & components ---------- */
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gap)}
.grid-12 > *{grid-column:span 12;min-width:0}
.col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-12{grid-column:span 12}

.card{
  padding:clamp(16px,2.2vw,26px);
  border:var(--hair) solid var(--line);
  border-radius:var(--radius);
  background:var(--card);
}
.card--moss{background:var(--moss-bg);border-color:#D3DED3}
.card--ink{background:var(--ink);border-color:#22394F;color:rgba(245,242,233,.82)}
.card--ink h3,.card--ink h4{color:var(--paper)}

.index-list{border-top:var(--hair) solid var(--line)}
.index-list > li{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  gap:14px;
  align-items:baseline;
  padding:14px 0;
  border-bottom:var(--hair) solid var(--line);
}

.data-band{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  border:var(--hair) solid var(--line);
  background:var(--moss-bg);
}
.data-band > *{
  padding:16px 18px;
  border-right:var(--hair) solid var(--line);
}
.data-band > *:last-child{border-right:0}
.data-band b{font-family:var(--mono);font-size:clamp(20px,2.4vw,28px);color:var(--moss);letter-spacing:.02em}

.crumbs{padding-block:14px;border-bottom:var(--hair) solid var(--line)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--rock)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li::after{content:"/";color:var(--line)}
.crumbs li:last-child::after{content:""}
.crumbs a{color:var(--rock)}
.crumbs a:hover{color:var(--moss)}
.crumbs [aria-current="page"]{color:var(--ink);font-weight:600}

/* ---------- media frames ---------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16/9;
  overflow:hidden;
  border:var(--hair) solid var(--line);
  border-radius:var(--radius);
  background:var(--moss-bg);
}
.media-frame img,.media-frame svg,.media-frame picture{width:100%;height:100%;object-fit:cover;display:block}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame__tag{
  position:absolute;
  left:0;
  bottom:0;
  padding:8px 12px;
  background:var(--ink);
  color:var(--paper);
  font:700 11px/1 var(--sans);
  letter-spacing:.1em;
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(245,242,233,.78);
  border-top:3px solid var(--moss);
}
.footer-frame{
  width:var(--shell);
  margin-inline:auto;
  padding-top:clamp(36px,5vw,64px);
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(24px,3vw,40px);
  padding-bottom:clamp(28px,4vw,48px);
}
.footer-brand__name{
  margin-bottom:10px;
  font:700 18px/1.2 var(--sans);
  letter-spacing:.06em;
  color:var(--paper);
}
.footer-brand__line{
  margin-bottom:14px;
  font-size:13px;
  line-height:1.8;
  letter-spacing:.02em;
  color:rgba(245,242,233,.7);
}
.footer-brand__meta{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.02em;
  color:var(--gold);
}
.footer-col{min-width:0}
.footer-head{
  margin-bottom:16px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(245,242,233,.18);
  font:700 12px/1 var(--sans);
  letter-spacing:.18em;
  color:var(--gold);
}
.footer-list{display:grid;gap:2px}
.footer-list a{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:38px;
  font-size:14px;
  color:rgba(245,242,233,.78);
  transition:color 160ms ease,padding-left 160ms ease;
}
.footer-list a:hover{color:var(--vivid);padding-left:4px}
.footer-idx{font-family:var(--mono);font-size:11px;color:rgba(245,242,233,.42)}
.contact-list{display:grid;gap:12px}
.contact-list li{display:grid;gap:4px}
.contact-key{font:700 11px/1 var(--sans);letter-spacing:.14em;color:rgba(245,242,233,.5)}
.contact-val{font-size:14px;color:rgba(245,242,233,.86);word-break:break-word}
.footer-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  align-items:center;
  justify-content:space-between;
  padding-block:18px;
  border-top:1px solid rgba(245,242,233,.18);
}
.footer-copy{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.02em;
  color:rgba(245,242,233,.6);
}
.footer-note{font-size:12px;line-height:1.7;color:rgba(245,242,233,.52)}
.footer-note a{color:var(--vivid);text-decoration:underline;text-underline-offset:3px}

/* ---------- reveal ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(8px);
  transition:opacity var(--speed) ease,transform var(--speed) ease;
}
.js [data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- breakpoints ---------- */
@media (max-width:719px){
  .rail-ticks{display:none}
  .rail-stat{display:none}
  .rail-cta{display:none}
}
@media (min-width:720px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .col-3,.col-4,.col-5,.col-6{grid-column:span 6}
  .col-7,.col-8,.col-9{grid-column:span 12}
}
@media (min-width:960px){
  .nav-toggle{display:none}
  .site-nav{max-height:none;overflow:visible;border-bottom-color:transparent}
  .nav-list{flex-direction:row;flex-wrap:wrap;padding-inline:var(--pad)}
  .nav-list a{
    padding:0 22px;
    min-height:54px;
    border-top:0;
    border-left:var(--hair) solid var(--line);
  }
  .nav-list li:last-child a{border-right:var(--hair) solid var(--line)}
  .nav-list a[aria-current="page"]{
    background:var(--moss-bg);
    box-shadow:inset 0 -2px 0 var(--moss);
  }
}
@media (min-width:1080px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.25fr}
  .col-3{grid-column:span 3}
  .col-4{grid-column:span 4}
  .col-5{grid-column:span 5}
  .col-6{grid-column:span 6}
  .col-7{grid-column:span 7}
  .col-8{grid-column:span 8}
  .col-9{grid-column:span 9}
}

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