:root{
  --ink:#14100E;
  --ink-soft:#221B16;
  --gold:#D9A441;
  --gold-deep:#A9762A;
  --cinnabar:#B83A2E;
  --cinnabar-deep:#8C2A22;
  --jade:#2E8B84;
  --jade-light:#7FC8BF;
  --paper:#F5EFE3;
  --sand:#6E6459;
  --line:rgba(217,164,65,.26);
  --line-soft:rgba(245,239,227,.12);
  --rail-w:88px;
  --topbar-h:74px;
  --page-max:1320px;
  --gutter:clamp(18px,4vw,48px);
  --r-l:28px;
  --r-m:18px;
  --r-s:12px;
  --pill:999px;
  --shadow:0 28px 70px -40px rgba(0,0,0,.95);
  --ease:cubic-bezier(.22,.68,.31,1);
  --font-display:"Songti SC","STSong","Source Han Serif SC","Noto Serif SC","SimSun",serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-mono:"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  color:var(--paper);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 620px at 82% -8%, rgba(217,164,65,.12), transparent 68%),
    radial-gradient(880px 520px at 4% 106%, rgba(184,58,46,.12), transparent 70%),
    repeating-linear-gradient(45deg, rgba(217,164,65,.035) 0 1px, transparent 1px 9px),
    repeating-linear-gradient(-45deg, rgba(245,239,227,.02) 0 1px, transparent 1px 13px);
  background-attachment:fixed;
}
img,svg{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,dl,dd,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--gold);color:var(--ink)}
#main-content{scroll-margin-top:calc(var(--topbar-h) + 20px)}

:where(a,button,[tabindex]):focus-visible{
  outline:2px solid var(--jade-light);
  outline-offset:3px;
  border-radius:6px;
}

.cs-container{
  width:100%;
  max-width:var(--page-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

/* ================= HEADER ================= */
.cs-header{
  position:sticky;
  top:0;
  z-index:50;
}
.cs-skip{
  position:fixed;
  left:calc(var(--rail-w) + 12px);
  top:12px;
  z-index:90;
  transform:translateY(-260%);
  display:inline-block;
  padding:10px 18px;
  border-radius:var(--pill);
  background:linear-gradient(160deg,var(--gold),var(--gold-deep));
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  text-decoration:none;
  transition:transform .22s var(--ease);
}
.cs-skip:focus{transform:translateY(0)}

.cs-topbar{
  position:relative;
  z-index:2;
  background:linear-gradient(180deg, rgba(20,16,14,.97), rgba(20,16,14,.88));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.cs-topbar__inner{
  max-width:var(--page-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
  min-height:var(--topbar-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.cs-topbar__meta{
  display:flex;
  align-items:center;
  gap:10px;
}

.cs-brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--paper);
  min-width:0;
}
.cs-brand__seal{
  width:42px;
  height:42px;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  border-radius:14px;
  font-family:var(--font-display);
  font-weight:800;
  font-size:21px;
  line-height:1;
  color:var(--ink);
  background:linear-gradient(150deg,var(--gold),var(--gold-deep));
  box-shadow:inset 0 0 0 1px rgba(20,16,14,.35), 0 10px 24px -14px rgba(217,164,65,.95);
}
.cs-brand__text{display:block;min-width:0}
.cs-brand__name{
  display:block;
  font-family:var(--font-display);
  font-weight:800;
  font-size:19px;
  line-height:1.25;
  letter-spacing:.05em;
  color:var(--paper);
}
.cs-brand__sub{
  display:block;
  font-size:11.5px;
  line-height:1.5;
  letter-spacing:.22em;
  color:rgba(245,239,227,.55);
}
.cs-brand--footer{margin-bottom:16px}

.cs-mark{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  padding:5px 10px;
  border-radius:var(--pill);
  border:1px solid var(--line);
  color:var(--gold);
  white-space:nowrap;
}
.cs-mark--sub{
  color:rgba(245,239,227,.62);
  border-color:var(--line-soft);
  letter-spacing:.2em;
}

.cs-cta{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:11px 20px;
  border-radius:var(--pill);
  border:1px solid transparent;
  font-family:var(--font-body);
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .18s var(--ease), box-shadow .18s var(--ease), background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}
.cs-cta--jade{
  background:linear-gradient(160deg,var(--jade),#1f625d);
  color:#F2FBF9;
  box-shadow:0 14px 30px -20px rgba(46,139,132,.95), inset 0 0 0 1px rgba(127,200,191,.5);
}
.cs-cta--jade::before{
  content:"";
  width:7px;height:7px;border-radius:50%;
  background:var(--jade-light);
  box-shadow:0 0 0 3px rgba(127,200,191,.24);
}
.cs-cta--gold{
  background:linear-gradient(160deg,var(--gold),var(--gold-deep));
  color:var(--ink);
  box-shadow:0 14px 30px -20px rgba(217,164,65,.95);
}
.cs-cta--ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--paper);
}
.cs-cta:hover{transform:translateY(-2px)}
.cs-cta:active{transform:translateY(0) scale(.985)}
.cs-section--paper .cs-cta--ghost{color:var(--ink);border-color:rgba(20,16,14,.26)}

.cs-navtoggle{
  display:none;
  position:relative;
  width:46px;height:46px;
  padding:0;
  border-radius:14px;
  border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(34,27,22,.95),rgba(20,16,14,.95));
  cursor:pointer;
  place-items:center;
}
.cs-navtoggle__bar{
  display:block;
  width:20px;height:2px;
  margin:2.5px auto;
  border-radius:2px;
  background:var(--gold);
  transition:transform .22s var(--ease), opacity .18s linear;
}
.cs-navtoggle[aria-expanded="true"] .cs-navtoggle__bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.cs-navtoggle[aria-expanded="true"] .cs-navtoggle__bar:nth-child(2){opacity:0}
.cs-navtoggle[aria-expanded="true"] .cs-navtoggle__bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ================= SIDE RAIL ================= */
.cs-rail{
  position:fixed;
  left:0;
  top:0;
  z-index:3;
  width:var(--rail-w);
  height:100dvh;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  padding:16px 9px;
  overflow-y:auto;
  background:linear-gradient(180deg,#1B1512 0%,#100D0B 55%,#1B1512 100%);
  border-right:1px solid var(--line);
  box-shadow:14px 0 44px -34px #000;
  scrollbar-width:none;
}
.cs-rail::-webkit-scrollbar{width:0}
.cs-rail::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    radial-gradient(circle at 50% 4%, rgba(217,164,65,.18), transparent 42%),
    repeating-linear-gradient(0deg, rgba(245,239,227,.035) 0 1px, transparent 1px 26px);
  opacity:.9;
}
.cs-rail__list{
  position:relative;
  width:100%;
  margin-block:auto;
  display:flex;
  flex-direction:column;
  gap:9px;
}
.cs-rail__close{display:none}
.cs-tab{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:7px;
  padding:11px 4px;
  border-radius:15px;
  border:1px solid rgba(217,164,65,.2);
  background:linear-gradient(165deg,rgba(34,27,22,.96),rgba(20,16,14,.96));
  color:rgba(245,239,227,.82);
  text-decoration:none;
  transition:transform .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease), box-shadow .18s var(--ease);
}
.cs-tab__num{
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--gold);
}
.cs-tab__label{
  writing-mode:vertical-rl;
  text-orientation:upright;
  font-size:12.5px;
  line-height:1;
  letter-spacing:.2em;
}
.cs-tab:hover{
  transform:translateY(-2px);
  border-color:var(--gold);
  color:var(--paper);
  box-shadow:0 14px 26px -20px rgba(217,164,65,.9);
}
.cs-tab[aria-current="page"]{
  background:linear-gradient(160deg,var(--gold),var(--gold-deep));
  border-color:var(--gold);
  color:var(--ink);
  box-shadow:0 16px 32px -22px rgba(217,164,65,.95), inset 0 0 0 1px rgba(20,16,14,.25);
}
.cs-tab[aria-current="page"] .cs-tab__num{color:rgba(20,16,14,.72)}
.cs-tab[aria-current="page"]:hover{transform:translateY(-2px)}

.cs-rail__foot{
  position:relative;
  width:100%;
  display:flex;
  justify-content:center;
  padding-top:8px;
}
.cs-rail__status{
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  text-decoration:none;
  font-size:10.5px;
  letter-spacing:.2em;
  color:var(--jade-light);
}
.cs-rail__status span:last-child{writing-mode:vertical-rl;text-orientation:upright}
.cs-dot{
  width:9px;height:9px;
  border-radius:50%;
  background:var(--jade-light);
  box-shadow:0 0 0 4px rgba(46,139,132,.24);
  animation:cs-pulse 3.4s var(--ease) infinite;
}
@keyframes cs-pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(46,139,132,.24)}
  50%{box-shadow:0 0 0 9px rgba(46,139,132,.05)}
}

.cs-scrim{
  position:fixed;
  inset:0;
  z-index:1;
  background:rgba(8,6,5,.62);
  backdrop-filter:blur(2px);
  opacity:0;
  pointer-events:none;
  transition:opacity .28s var(--ease);
}
.cs-scrim[data-open="true"]{opacity:1;pointer-events:auto}
body.cs-nav-open{overflow:hidden}

/* ================= FOOTER ================= */
.cs-footer{
  position:relative;
  margin-top:clamp(40px,6vw,90px);
  padding-top:clamp(46px,6vw,78px);
  background:linear-gradient(180deg,#181310 0%,#0E0B0A 100%);
  border-top:1px solid var(--line);
  overflow:hidden;
}
.cs-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:180px;
  pointer-events:none;
  background:
    radial-gradient(600px 140px at 14% 0%, rgba(217,164,65,.16), transparent 70%),
    repeating-linear-gradient(45deg, rgba(217,164,65,.05) 0 1px, transparent 1px 12px);
  -webkit-mask-image:linear-gradient(180deg,#000,transparent);
  mask-image:linear-gradient(180deg,#000,transparent);
}
.cs-footer__grid{
  position:relative;
  max-width:var(--page-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
  display:grid;
  grid-template-columns:1.35fr .85fr 1.15fr;
  gap:clamp(28px,4vw,64px);
  padding-bottom:clamp(32px,4vw,52px);
}
.cs-footer__note{
  font-size:14px;
  line-height:1.75;
  color:rgba(245,239,227,.62);
  max-width:34ch;
}
.cs-footer__chips{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:18px;
}
.cs-chip{
  padding:5px 13px;
  border-radius:var(--pill);
  border:1px solid var(--line);
  color:rgba(245,239,227,.74);
  font-size:12.5px;
  letter-spacing:.08em;
  background:rgba(217,164,65,.06);
}
.cs-footer__title{
  font-family:var(--font-display);
  font-size:16px;
  font-weight:800;
  letter-spacing:.16em;
  color:var(--gold);
  margin-bottom:16px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line-soft);
}
.cs-footer__list{display:grid;gap:10px}
.cs-footer__list a{
  display:inline-block;
  font-size:14.5px;
  color:rgba(245,239,227,.74);
  text-decoration:none;
  transition:color .18s var(--ease), transform .18s var(--ease);
}
.cs-footer__list a::before{
  content:"";
  display:inline-block;
  width:6px;height:6px;
  margin-right:9px;
  border-radius:2px;
  transform:rotate(45deg) translateY(-2px);
  background:var(--gold-deep);
}
.cs-footer__list a:hover{color:var(--gold);transform:translateX(3px)}
.cs-footer__meta{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:9px 14px;
  font-size:14px;
}
.cs-footer__meta dt{
  font-size:11.5px;
  letter-spacing:.16em;
  color:rgba(245,239,227,.46);
  padding-top:4px;
  white-space:nowrap;
}
.cs-footer__meta dd{
  color:rgba(245,239,227,.86);
  word-break:break-word;
}
.cs-footer__icp{
  margin-top:18px;
  display:inline-block;
  padding:6px 12px;
  border-radius:var(--radius,8px);
  border-radius:8px;
  border-left:3px solid var(--cinnabar);
  background:rgba(184,58,46,.14);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:rgba(245,239,227,.78);
}
.cs-footer__legal{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:16px;
}
.cs-footer__legal a{
  font-size:13px;
  color:rgba(245,239,227,.66);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease), border-color .18s var(--ease);
}
.cs-footer__legal a:hover{color:var(--jade-light);border-bottom-color:var(--jade-light)}
.cs-footer__base{
  position:relative;
  max-width:var(--page-max);
  margin-inline:auto;
  padding:18px var(--gutter) 26px;
  border-top:1px dashed rgba(217,164,65,.2);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.cs-footer__copy{
  font-size:12.5px;
  letter-spacing:.08em;
  color:rgba(245,239,227,.48);
}

/* ================= PAGE PARTS ================= */
.cs-section{
  position:relative;
  padding-block:clamp(54px,7vw,104px);
}
.cs-section--paper{
  background:var(--paper);
  color:var(--ink);
  background-image:repeating-linear-gradient(45deg, rgba(20,16,14,.03) 0 1px, transparent 1px 11px);
}
.cs-section--ink{background:linear-gradient(180deg,rgba(34,27,22,.7),rgba(20,16,14,.9))}
.cs-section--bevel-top{clip-path:polygon(0 2.6vw,100% 0,100% 100%,0 100%)}
.cs-section--bevel-bottom{clip-path:polygon(0 0,100% 0,100% calc(100% - 2.6vw),0 100%)}

.cs-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--gold);
  margin-bottom:14px;
}
.cs-eyebrow::after{
  content:"";
  width:52px;height:1px;
  background:linear-gradient(90deg,var(--gold),transparent);
}
.cs-section--paper .cs-eyebrow{color:var(--gold-deep)}
.cs-section--paper .cs-eyebrow::after{background:linear-gradient(90deg,var(--gold-deep),transparent)}

.cs-display{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(38px,5.2vw,64px);
  line-height:1.12;
  letter-spacing:.02em;
  color:var(--paper);
  -webkit-text-stroke:1.2px var(--gold);
  text-shadow:0 2px 0 rgba(20,16,14,.85), 0 20px 44px rgba(0,0,0,.45);
}
.cs-h2{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(27px,3.4vw,44px);
  line-height:1.22;
  letter-spacing:.02em;
  color:var(--paper);
}
.cs-h3{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(19px,2vw,26px);
  line-height:1.35;
  color:var(--paper);
}
.cs-lead{
  font-size:clamp(16px,1.4vw,19px);
  line-height:1.8;
  color:rgba(245,239,227,.78);
  max-width:62ch;
}
.cs-text{
  font-size:17px;
  line-height:1.8;
  color:rgba(245,239,227,.78);
  max-width:66ch;
}
.cs-section--paper .cs-display{color:var(--ink);-webkit-text-stroke:1.2px var(--gold-deep);text-shadow:none}
.cs-section--paper .cs-h2,
.cs-section--paper .cs-h3{color:var(--ink)}
.cs-section--paper .cs-lead,
.cs-section--paper .cs-text{color:#40372F}

.cs-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:36px;
  height:36px;
  padding:0 9px;
  border-radius:12px;
  font-family:var(--font-mono);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--ink);
  background:linear-gradient(160deg,var(--gold),var(--gold-deep));
  box-shadow:inset 0 0 0 1px rgba(20,16,14,.28), 0 10px 22px -16px rgba(217,164,65,.95);
}
.cs-badge--jade{
  background:linear-gradient(160deg,var(--jade),#1f625d);
  color:#F2FBF9;
  box-shadow:inset 0 0 0 1px rgba(127,200,191,.5);
}

.cs-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:clamp(16px,1.8vw,24px);
}
.cs-col-3{grid-column:span 3}
.cs-col-4{grid-column:span 4}
.cs-col-5{grid-column:span 5}
.cs-col-6{grid-column:span 6}
.cs-col-8{grid-column:span 8}
.cs-col-12{grid-column:span 12}

.cs-card{
  position:relative;
  padding:clamp(20px,2.2vw,30px);
  border-radius:var(--r-l);
  border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(34,27,22,.96),rgba(20,16,14,.96));
  box-shadow:var(--shadow);
}
.cs-card--paper{
  background:var(--paper);
  color:var(--ink);
  border-color:rgba(20,16,14,.14);
}
.cs-card__title{
  font-family:var(--font-display);
  font-size:clamp(19px,1.8vw,22px);
  font-weight:700;
  line-height:1.35;
  margin-bottom:8px;
  color:var(--paper);
}
.cs-card--paper .cs-card__title{color:var(--ink)}
.cs-card__meta{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.16em;
  color:rgba(245,239,227,.5);
}
.cs-card--paper .cs-card__meta{color:var(--sand)}

.cs-band{
  border-block:1px solid var(--line);
  background:linear-gradient(90deg,rgba(184,58,46,.16),rgba(217,164,65,.12) 55%,rgba(46,139,132,.10));
  padding-block:16px;
  overflow-x:auto;
  scrollbar-width:thin;
}
.cs-band__row{
  display:flex;
  align-items:center;
  gap:10px;
  padding-inline:var(--gutter);
  width:max-content;
  min-width:100%;
}

.cs-pillbar{
  display:inline-flex;
  flex-wrap:wrap;
  gap:8px;
  padding:6px;
  border-radius:var(--pill);
  border:1px solid var(--line);
  background:rgba(34,27,22,.72);
}
.cs-pill{
  appearance:none;
  border:1px solid transparent;
  background:transparent;
  border-radius:var(--pill);
  padding:9px 18px;
  font-size:14px;
  letter-spacing:.04em;
  color:rgba(245,239,227,.72);
  text-decoration:none;
  cursor:pointer;
  transition:background .18s var(--ease), color .18s var(--ease), transform .18s var(--ease);
}
.cs-pill:hover{color:var(--paper);background:rgba(217,164,65,.14)}
.cs-pill[aria-selected="true"],
.cs-pill[aria-current="true"],
.cs-pill.is-active{
  background:linear-gradient(160deg,var(--gold),var(--gold-deep));
  color:var(--ink);
  font-weight:700;
}

.cs-figure{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin:0;
}
.cs-figure__media{
  position:relative;
  overflow:hidden;
  aspect-ratio:4/3;
  border-radius:var(--r-m);
  border:1px solid var(--line);
  background:
    radial-gradient(circle at 74% 18%, rgba(217,164,65,.22), transparent 58%),
    linear-gradient(160deg,#241C16,#15100E);
}
.cs-figure__media img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.cs-figure__media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(245,239,227,.06), inset 0 -60px 70px -60px rgba(0,0,0,.9);
}
.cs-figure--wide .cs-figure__media{aspect-ratio:16/9}
.cs-figure--tall .cs-figure__media{aspect-ratio:3/4}
.cs-figure--square .cs-figure__media{aspect-ratio:1/1}
.cs-figure__cap{
  font-size:13px;
  line-height:1.7;
  color:rgba(245,239,227,.58);
}
.cs-section--paper .cs-figure__cap{color:var(--sand)}

.cs-list-tight{
  font-size:14.5px;
  line-height:1.62;
  color:rgba(245,239,227,.74);
}
.cs-list-tight li{
  position:relative;
  padding-left:16px;
  margin-bottom:6px;
}
.cs-list-tight li::before{
  content:"";
  position:absolute;
  left:0;
  top:.62em;
  width:6px;height:6px;
  border-radius:2px;
  transform:rotate(45deg);
  background:var(--gold-deep);
}
.cs-section--paper .cs-list-tight{color:#40372F}

.cs-breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(245,239,227,.55);
  margin-bottom:18px;
}
.cs-breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.cs-breadcrumb li+li::before{content:"/";color:var(--gold-deep)}
.cs-breadcrumb a{text-decoration:none;color:rgba(245,239,227,.72)}
.cs-breadcrumb a:hover{color:var(--gold)}
.cs-breadcrumb [aria-current="page"]{color:var(--gold)}

.cs-toc{
  border-left:1px solid var(--line);
  padding-left:16px;
  font-size:14px;
}
.cs-toc a{
  display:block;
  margin-left:-18px;
  padding:7px 0 7px 16px;
  border-left:2px solid transparent;
  text-decoration:none;
  color:rgba(245,239,227,.62);
  transition:color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
}
.cs-toc a:hover{color:var(--paper)}
.cs-toc a.is-active{
  color:var(--gold);
  border-left-color:var(--gold);
  background:linear-gradient(90deg,rgba(217,164,65,.14),transparent);
}

/* ================= MOTION / UTILITY ================= */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .52s var(--ease), transform .52s var(--ease);
  transition-delay:calc(var(--i,0) * 60ms);
}
[data-reveal].is-in{opacity:1;transform:none}

.cs-progress{
  position:fixed;
  left:0;
  right:0;
  top:0;
  height:3px;
  z-index:70;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cinnabar),var(--gold) 55%,var(--jade-light));
  pointer-events:none;
}
.cs-totop{
  position:fixed;
  right:clamp(14px,3vw,32px);
  bottom:clamp(14px,3vw,32px);
  z-index:65;
  width:48px;
  height:48px;
  display:grid;
  place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:linear-gradient(160deg,#241C16,#14100E);
  color:var(--gold);
  font-size:17px;
  line-height:1;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  box-shadow:0 18px 40px -22px #000;
  transition:opacity .24s var(--ease), transform .24s var(--ease), visibility .24s linear, border-color .18s var(--ease), color .18s var(--ease);
}
.cs-totop[data-visible="true"]{opacity:1;visibility:visible;transform:none}
.cs-totop:hover{border-color:var(--gold);color:var(--paper)}

/* ================= RESPONSIVE ================= */
@media (min-width:1024px){
  body{padding-left:var(--rail-w)}
}

@media (max-width:1023px){
  :root{--topbar-h:64px}
  body{padding-left:0;font-size:16.5px}
  .cs-skip{left:12px}

  .cs-navtoggle{display:grid}

  .cs-rail{
    left:auto;
    right:0;
    top:0;
    width:min(304px,86vw);
    height:100dvh;
    transform:translateX(102%);
    visibility:hidden;
    align-items:stretch;
    justify-content:flex-start;
    gap:14px;
    padding:16px 16px 26px;
    border-right:0;
    border-left:1px solid var(--line);
    box-shadow:-28px 0 70px -34px #000;
    transition:transform .32s var(--ease), visibility .32s linear;
  }
  .cs-rail[data-open="true"]{
    transform:translateX(0);
    visibility:visible;
  }
  .cs-rail__list{margin-block:0;gap:10px}
  .cs-rail__close{
    display:inline-flex;
    align-self:flex-end;
    align-items:center;
    justify-content:center;
    padding:8px 16px;
    border-radius:var(--pill);
    border:1px solid var(--line);
    background:rgba(217,164,65,.1);
    color:var(--gold);
    font-size:13px;
    letter-spacing:.12em;
    cursor:pointer;
  }
  .cs-tab{
    flex-direction:row;
    justify-content:flex-start;
    gap:14px;
    padding:14px 16px;
    border-radius:18px;
  }
  .cs-tab__num{
    font-size:11px;
    padding:3px 7px;
    border-radius:6px;
    border:1px solid var(--line);
  }
  .cs-tab__label{
    writing-mode:horizontal-tb;
    font-size:15.5px;
    letter-spacing:.12em;
  }
  .cs-rail__foot{margin-top:auto;padding-top:8px}
  .cs-rail__status{
    flex-direction:row;
    gap:10px;
    font-size:13px;
    letter-spacing:.14em;
  }
  .cs-rail__status span:last-child{writing-mode:horizontal-tb}

  .cs-grid{grid-template-columns:repeat(6,1fr)}
  .cs-col-3,.cs-col-4{grid-column:span 3}
  .cs-col-5,.cs-col-6{grid-column:span 6}
  .cs-col-8{grid-column:span 6}

  .cs-footer__grid{grid-template-columns:1fr 1fr}
  .cs-footer__brand{grid-column:1 / -1}
  .cs-footer__contact{grid-column:1 / -1}
}

@media (max-width:640px){
  :root{--topbar-h:60px}
  .cs-topbar__inner{gap:10px}
  .cs-brand__seal{width:36px;height:36px;font-size:18px;border-radius:11px}
  .cs-brand__name{font-size:16.5px;letter-spacing:.03em}
  .cs-brand__sub{font-size:10px;letter-spacing:.16em}
  .cs-mark{display:none}
  .cs-cta{padding:9px 15px;font-size:13px;letter-spacing:.04em}
  .cs-cta--jade::before{width:6px;height:6px}

  .cs-grid{grid-template-columns:1fr}
  .cs-col-3,.cs-col-4,.cs-col-5,.cs-col-6,.cs-col-8,.cs-col-12{grid-column:1 / -1}

  .cs-footer__grid{grid-template-columns:1fr;gap:26px}
  .cs-footer__base{flex-direction:column;align-items:flex-start;gap:8px}
  .cs-footer__meta{grid-template-columns:1fr;gap:2px 0}
  .cs-footer__meta dd{margin-bottom:10px}
  .cs-totop{width:44px;height:44px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
  [data-reveal]{opacity:1 !important;transform:none !important}
  .cs-tab:hover,.cs-cta:hover,.cs-footer__list a:hover{transform:none}
}