/* =========================================================
   /assets/site.css — 澳门黄金金版 · 中国站 共享外壳
   01 reset · 02 tokens · 03 base · 04 header · 05 nav
   06 index panel · 07 footer · 08 layout components
   09 motion · 10 responsive · 11 reduced motion
   ========================================================= */

/* ---------- 01 reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd,fieldset{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit;text-decoration:none}
[hidden]{display:none !important}

/* ---------- 02 tokens ---------- */
:root{
  --ink-950:#0B0B0D;
  --ink-900:#14141A;
  --ink-800:#1F1E24;
  --champagne:#D9B36C;
  --gold-light:#F0D9A8;
  --copper:#B87A3D;
  --ivory:#F3EEE4;
  --mist:#9A94A0;
  --crimson:#7A2A33;
  --teal:#2E6F6A;
  --line:#3A3A44;
  --paper:#EAE3D6;

  --font-display:Georgia,"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-body:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-label:"Oswald","Barlow Condensed","Helvetica Neue","PingFang SC",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --radius-panel:18px;
  --radius-float:14px;
  --radius-pill:999px;
  --shift:12px;
  --shell:1240px;
  --gutter:clamp(20px,4vw,72px);
  --ease:cubic-bezier(.22,1,.36,1);
  --dur:220ms;
}

/* ---------- 03 base ---------- */
html,body{min-height:100%}
body{
  position:relative;
  background-color:var(--ink-950);
  background-image:
    repeating-linear-gradient(118deg,rgba(240,217,168,.028) 0 1px,transparent 1px 8px),
    radial-gradient(70% 55% at 84% -10%,rgba(217,179,108,.17),transparent 62%),
    radial-gradient(58% 48% at 2% 4%,rgba(184,122,61,.13),transparent 60%),
    radial-gradient(90% 70% at 50% 110%,rgba(46,111,106,.10),transparent 66%);
  background-attachment:fixed;
  background-repeat:no-repeat;
  color:var(--ivory);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.2;letter-spacing:-.01em}
p{max-width:38em}
::selection{background:rgba(217,179,108,.32);color:var(--gold-light)}
:focus-visible{outline:2px solid var(--gold-light);outline-offset:3px;border-radius:4px}
#main-content:focus{outline:none}
.site-footer,.page-shell{position:relative;z-index:1}

/* ---------- 04 header ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:300;
  display:inline-block;padding:10px 18px;border-radius:var(--radius-pill);
  background:linear-gradient(120deg,var(--gold-light),var(--champagne) 60%,var(--copper));
  color:#17130C;font-family:var(--font-label);font-size:13px;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;
  transform:translateY(-180%);transition:transform 180ms var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  padding:20px var(--gutter) 0;
  pointer-events:none;
}
.site-header__inner{
  position:relative;
  max-width:var(--shell);margin:0 auto;
  display:flex;justify-content:center;
  pointer-events:auto;
}
.progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:140;
  background:rgba(217,179,108,.12);
}
.progress__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--copper),var(--champagne) 55%,var(--gold-light));
  box-shadow:0 0 12px rgba(217,179,108,.55);
}

.capsule{
  display:flex;align-items:center;gap:clamp(12px,1.8vw,28px);
  width:100%;max-width:100%;
  padding:9px 12px 9px 18px;
  border:1px solid rgba(217,179,108,.22);
  border-radius:var(--radius-pill);
  background:linear-gradient(180deg,rgba(31,30,36,.94),rgba(16,16,22,.94));
  -webkit-backdrop-filter:blur(14px) saturate(125%);
  backdrop-filter:blur(14px) saturate(125%);
  box-shadow:0 22px 50px -32px #000,inset 0 1px 0 rgba(240,217,168,.16);
  transition:padding var(--dur) var(--ease),background var(--dur) var(--ease);
}
.site-header[data-scrolled] .capsule{
  padding:6px 10px 6px 16px;
  background:linear-gradient(180deg,rgba(24,23,29,.97),rgba(11,11,13,.97));
  border-color:rgba(217,179,108,.32);
}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;padding:2px 4px 2px 0}
.brand__mark{
  width:12px;height:12px;flex:none;border-radius:50%;
  background:radial-gradient(circle at 32% 26%,var(--gold-light),var(--champagne) 44%,var(--copper) 100%);
  box-shadow:0 0 0 1px rgba(240,217,168,.5),0 0 16px rgba(217,179,108,.6);
  animation:markPulse 7s ease-in-out infinite;
}
.brand__text{display:flex;flex-direction:column;line-height:1.12}
.brand__name{
  font-family:var(--font-display);font-size:16px;font-weight:700;letter-spacing:.02em;
  white-space:nowrap;color:var(--ivory);
}
.brand__sub{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--mist);
}
.capsule__actions{display:flex;align-items:center;gap:8px;margin-left:auto;flex:0 0 auto}

/* ---------- 05 nav ---------- */
.nav{
  display:flex;align-items:center;justify-content:center;
  flex:1 1 auto;min-width:0;overflow:hidden;
  max-width:760px;
  transition:max-width var(--dur) var(--ease),opacity 180ms var(--ease),visibility 180ms var(--ease);
  visibility:visible;opacity:1;
}
.nav__list{display:flex;align-items:center;gap:2px}
.nav__item{display:flex}
.nav__link{
  display:inline-block;padding:8px 12px;border-radius:var(--radius-pill);
  font-family:var(--font-label);font-size:13.5px;font-weight:600;
  letter-spacing:.08em;color:rgba(243,238,228,.76);
  white-space:nowrap;
  transition:color 160ms var(--ease),background 160ms var(--ease);
}
.nav__link:hover{color:var(--gold-light);background:rgba(217,179,108,.10)}
.nav__link[aria-current="page"]{
  color:var(--gold-light);
  background:linear-gradient(180deg,rgba(217,179,108,.20),rgba(184,122,61,.12));
  box-shadow:inset 0 -2px 0 var(--crimson);
}

.nav-toggle{
  display:none;position:relative;width:40px;height:40px;flex:none;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  background:rgba(31,30,36,.92);cursor:pointer;
  transition:border-color 160ms var(--ease),background 160ms var(--ease);
}
.nav-toggle:hover{border-color:rgba(217,179,108,.5)}
.nav-toggle__bar{
  position:absolute;left:11px;right:11px;height:1.5px;border-radius:2px;
  background:var(--gold-light);
  transition:transform 200ms var(--ease),opacity 160ms var(--ease),top 200ms var(--ease);
}
.nav-toggle__bar:nth-child(1){top:14px}
.nav-toggle__bar:nth-child(2){top:19.5px}
.nav-toggle__bar:nth-child(3){top:25px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){top:19.5px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0;transform:scaleX(.4)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){top:19.5px;transform:rotate(-45deg)}

/* ---------- 06 zone index panel ---------- */
.zone-index{
  position:absolute;top:calc(100% + 12px);right:0;
  width:min(560px,100%);
  padding:20px 20px 16px;
  border:1px solid rgba(217,179,108,.24);
  border-radius:var(--radius-panel);
  background:linear-gradient(162deg,#1C1B22,#0E0E13 72%);
  box-shadow:0 44px 90px -46px #000,inset 0 1px 0 rgba(240,217,168,.12);
  animation:panelIn 220ms var(--ease) both;
}
.zone-index__head{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding-bottom:12px;margin-bottom:8px;
  border-bottom:1px solid var(--line);
}
.zone-index__title{
  font-family:var(--font-label);font-size:11.5px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--mist);
}
.zone-index__meta{font-family:var(--font-mono);font-size:11px;color:var(--champagne)}
.zone-index__list{display:grid;grid-template-columns:1fr 1fr;gap:2px}
.zone-index__item{min-width:0}
.zone-index__item a{
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;align-items:start;
  padding:11px 10px;border-radius:var(--radius-float);
  transition:background 160ms var(--ease),transform 160ms var(--ease);
}
.zone-index__item a:hover{background:rgba(217,179,108,.10);transform:translateX(2px)}
.zone-index__num{font-family:var(--font-mono);font-size:11.5px;color:var(--copper);line-height:1.9}
.zone-index__text{display:block;min-width:0}
.zone-index__label{
  display:block;font-family:var(--font-display);font-size:15px;
  font-weight:700;line-height:1.4;color:var(--ivory);
}
.zone-index__desc{
  display:block;font-size:12.5px;line-height:1.6;
  color:var(--mist);letter-spacing:.01em;
}

/* ---------- 07 footer ---------- */
.site-footer{
  margin-top:clamp(64px,8vw,120px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(20,20,26,.72),rgba(11,11,13,.98));
}
.site-footer__inner{
  max-width:var(--shell);margin:0 auto;
  padding:clamp(40px,5vw,68px) var(--gutter) 30px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;
  gap:clamp(24px,3vw,48px);
}
.footer-brand{min-width:0}
.footer-brand__name{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-display);font-size:20px;font-weight:700;
  letter-spacing:.02em;color:var(--ivory);max-width:none;
}
.footer-brand__mark{
  width:10px;height:10px;flex:none;border-radius:50%;
  background:radial-gradient(circle at 32% 26%,var(--gold-light),var(--champagne) 46%,var(--copper) 100%);
  box-shadow:0 0 0 1px rgba(240,217,168,.45),0 0 12px rgba(217,179,108,.5);
}
.footer-brand__tagline{margin-top:12px;max-width:30ch;font-size:14px;line-height:1.8;color:var(--mist)}
.footer-col{min-width:0}
.footer-col__title{
  margin-bottom:12px;
  font-family:var(--font-label);font-size:11.5px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--champagne);
}
.footer-list{display:grid;gap:1px}
.footer-list__item{min-width:0}
.footer-list__link{
  display:inline-block;padding:5px 0;font-size:14.5px;
  color:rgba(243,238,228,.8);
  border-bottom:1px solid transparent;
  transition:color 160ms var(--ease),border-color 160ms var(--ease);
}
.footer-list__link:hover{color:var(--gold-light);border-bottom-color:rgba(217,179,108,.55)}
.footer-contact{display:grid;gap:10px}
.footer-contact__row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:14px}
.footer-contact__label{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--mist);min-width:34px;
}
.footer-contact__value{color:var(--ivory);word-break:break-all;line-height:1.7}
.copy-btn{
  appearance:none;cursor:pointer;flex:none;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;
  color:var(--mist);padding:2px 9px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(243,238,228,.05);
  transition:color 160ms var(--ease),border-color 160ms var(--ease),background 160ms var(--ease);
}
.copy-btn:hover{color:var(--gold-light);border-color:rgba(217,179,108,.45)}
.copy-btn[data-copied]{color:var(--ivory);border-color:var(--teal);background:rgba(46,111,106,.3)}
.footer-note{
  margin-top:4px;font-size:12.5px;line-height:1.75;
  color:var(--mist);max-width:34ch;
}
.footer-legal{
  margin-top:clamp(28px,4vw,44px);padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 24px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.05em;color:var(--mist);
}
.footer-legal__copy{max-width:none}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:8px 18px}
.footer-legal__links a{color:var(--mist);transition:color 160ms var(--ease)}
.footer-legal__links a:hover{color:var(--champagne)}

/* ---------- 08 layout components ---------- */
.page-shell{
  max-width:var(--shell);margin:0 auto;
  padding:clamp(108px,12vw,148px) var(--gutter) 0;
}
.section{margin-top:clamp(48px,7vw,92px)}
.section__head{display:grid;gap:10px;margin-bottom:clamp(20px,3vw,32px)}
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-label);font-size:11.5px;font-weight:600;
  letter-spacing:.22em;text-transform:uppercase;color:var(--champagne);
}
.eyebrow::before{
  content:"";width:26px;height:1px;flex:none;
  background:linear-gradient(90deg,var(--copper),var(--champagne),transparent);
}
.display{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(34px,5.1vw,68px);line-height:1.12;letter-spacing:-.012em;
  color:var(--ivory);
}
@supports ((-webkit-background-clip:text) or (background-clip:text)){
  .display{
    background-image:linear-gradient(152deg,var(--gold-light) 0%,var(--ivory) 46%,#C6BCA9 100%);
    -webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent;color:transparent;
  }
}
.h1{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(28px,3.6vw,48px);line-height:1.2;letter-spacing:-.01em;color:var(--ivory);
}
.h2{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(22px,2.4vw,32px);line-height:1.3;color:var(--ivory);
}
.lede{
  margin-top:16px;max-width:38ch;
  font-size:clamp(15.5px,1.25vw,17px);line-height:1.9;
  color:rgba(243,238,228,.82);
}
.prose{max-width:38em;color:rgba(243,238,228,.84);font-size:16px;line-height:1.9}
.prose p + p{margin-top:14px}
.prose strong{color:var(--gold-light);font-weight:600}

.grid{display:grid;gap:clamp(16px,2.2vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,58fr) minmax(0,42fr);align-items:start}

.panel{
  position:relative;min-width:0;
  padding:clamp(20px,3vw,32px);
  border:1px solid var(--line);border-radius:var(--radius-panel);
  background:linear-gradient(165deg,rgba(31,30,36,.9),rgba(18,18,23,.88));
  box-shadow:inset 0 1px 0 rgba(240,217,168,.07),0 30px 60px -50px #000;
}
.panel--quiet{
  background:linear-gradient(165deg,rgba(20,20,26,.72),rgba(11,11,13,.72));
  border-color:rgba(58,58,68,.8);
}
.stack{display:grid;gap:var(--shift)}

.band{
  width:100vw;margin-left:calc(50% - 50vw);
  margin-top:clamp(48px,7vw,92px);
  padding:clamp(26px,3.4vw,44px) 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:
    linear-gradient(100deg,rgba(217,179,108,.10),rgba(184,122,61,.06) 46%,rgba(46,111,106,.08));
}
.band__inner{
  max-width:var(--shell);margin:0 auto;padding:0 var(--gutter);
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(16px,2vw,32px);
}

.chapter{
  display:grid;grid-template-columns:auto minmax(0,1fr);
  gap:clamp(14px,2vw,26px);align-items:start;
  padding-top:clamp(24px,3.4vw,40px);
  border-top:1px solid var(--line);
}
.chapter__num{
  font-family:var(--font-mono);font-size:clamp(26px,3.2vw,42px);
  line-height:1;letter-spacing:-.02em;
  background-image:linear-gradient(160deg,var(--gold-light),var(--champagne) 45%,var(--copper));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:var(--champagne);
}
.chapter__body{min-width:0}
.chapter__title{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(19px,2.1vw,27px);line-height:1.35;color:var(--ivory);
}
.chapter__text{
  margin-top:10px;max-width:36em;
  font-size:15.5px;line-height:1.85;color:rgba(243,238,228,.78);
}

.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--mist);
}
.breadcrumbs a{color:var(--mist);transition:color 160ms var(--ease)}
.breadcrumbs a:hover{color:var(--champagne)}
.breadcrumbs__sep{color:var(--line)}
.breadcrumbs [aria-current="page"]{color:var(--champagne)}

.actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:clamp(20px,3vw,30px)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:10px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:transparent;
  font-family:var(--font-label);font-size:13px;font-weight:600;
  letter-spacing:.09em;text-transform:uppercase;color:var(--ivory);
  cursor:pointer;white-space:nowrap;
  transition:color 160ms var(--ease),border-color 160ms var(--ease),background 160ms var(--ease),transform 160ms var(--ease);
}
.btn:hover{border-color:rgba(217,179,108,.55);color:var(--gold-light)}
.btn--ghost{background:rgba(243,238,228,.04)}
.btn--ghost:hover{background:rgba(217,179,108,.12)}
.btn--gold{
  border-color:transparent;color:#17130C;
  background-image:linear-gradient(120deg,var(--gold-light),var(--champagne) 48%,var(--copper));
  background-size:180% 100%;background-position:0% 50%;
  box-shadow:0 10px 26px -16px rgba(217,179,108,.95),inset 0 1px 0 rgba(255,255,255,.35);
  animation:sheen 9s ease-in-out infinite alternate;
}
.btn--gold:hover{color:#0B0B0D;transform:translateY(-1px)}
.btn--switch{padding:9px 16px;font-size:12.5px}
.btn--index{font-size:12.5px;padding:8px 14px}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-pill);
  border:1px solid rgba(217,179,108,.32);background:rgba(217,179,108,.09);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--champagne);
}
.tag--teal{border-color:rgba(46,111,106,.6);background:rgba(46,111,106,.2);color:#8FC8C1}

.filter-bar{
  display:flex;flex-wrap:wrap;gap:6px;padding:6px;
  width:fit-content;max-width:100%;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  background:rgba(20,20,26,.72);
}
.filter-btn{
  appearance:none;cursor:pointer;
  padding:8px 14px;border-radius:var(--radius-pill);
  border:1px solid transparent;background:transparent;
  font-family:var(--font-label);font-size:12.5px;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:rgba(243,238,228,.72);
  transition:color 160ms var(--ease),background 160ms var(--ease),transform 160ms var(--ease);
}
.filter-btn:hover{color:var(--gold-light);background:rgba(217,179,108,.1)}
.filter-btn[aria-pressed="true"]{
  color:#17130C;
  background:linear-gradient(120deg,var(--gold-light),var(--champagne) 55%,var(--copper));
  box-shadow:0 8px 20px -14px rgba(217,179,108,.9);
}

.media{
  position:relative;isolation:isolate;overflow:hidden;
  aspect-ratio:16/9;width:100%;
  border:1px solid var(--line);border-radius:var(--radius-panel);
  background:
    radial-gradient(120% 140% at 18% 0%,rgba(217,179,108,.3),transparent 56%),
    radial-gradient(110% 130% at 100% 100%,rgba(46,111,106,.22),transparent 62%),
    linear-gradient(142deg,#1C1B22,#0B0B0D);
}
.media::after{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background-image:repeating-linear-gradient(120deg,rgba(240,217,168,.075) 0 1px,transparent 1px 9px);
  mix-blend-mode:overlay;
}
.media img{width:100%;height:100%;object-fit:cover;position:relative;z-index:1}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:4/5}
.media--square{aspect-ratio:1/1}
.media__caption{
  position:absolute;left:14px;bottom:12px;z-index:3;
  padding:4px 10px;border-radius:var(--radius-pill);
  border:1px solid rgba(217,179,108,.28);background:rgba(11,11,13,.62);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.09em;
  color:rgba(243,238,228,.8);
}

/* ---------- 09 motion ---------- */
@keyframes sheen{from{background-position:0% 50%}to{background-position:100% 50%}}
@keyframes panelIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
@keyframes markPulse{0%,100%{box-shadow:0 0 0 1px rgba(240,217,168,.5),0 0 14px rgba(217,179,108,.5)}50%{box-shadow:0 0 0 1px rgba(240,217,168,.7),0 0 22px rgba(217,179,108,.8)}}

html.js [data-reveal]{opacity:0;transform:translateY(14px)}
html.js [data-reveal].is-visible{
  opacity:1;transform:none;
  transition:opacity 520ms var(--ease),transform 520ms var(--ease);
}

/* ---------- 10 responsive ---------- */
@media (min-width:861px){
  .site-header[data-scrolled] .nav{
    max-width:0;opacity:0;visibility:hidden;
  }
  .stack > *:nth-child(even){margin-left:var(--shift)}
}
@media (max-width:1100px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .footer-grid > .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:900px){
  .grid--split{grid-template-columns:minmax(0,1fr)}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .band__inner{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:860px){
  .site-header{padding:12px clamp(12px,3vw,20px) 0}
  .capsule{padding:8px 10px 8px 14px;gap:10px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav{
    position:fixed;left:12px;right:12px;bottom:12px;z-index:130;
    display:block;max-width:none;overflow:visible;
    padding:14px;
    border:1px solid rgba(217,179,108,.28);
    border-radius:22px;
    background:linear-gradient(168deg,#1C1B22,#0D0D12 74%);
    box-shadow:0 -24px 70px -40px #000,0 30px 70px -40px #000,inset 0 1px 0 rgba(240,217,168,.12);
    transform:translateY(calc(100% + 28px));
    opacity:0;visibility:hidden;
    transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
  }
  .nav[data-open]{transform:none;opacity:1;visibility:visible}
  .nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .nav__link{
    display:block;padding:14px 16px;border-radius:var(--radius-float);
    font-size:15px;letter-spacing:.06em;color:var(--ivory);
  }
  .nav__link[aria-current="page"]{
    box-shadow:inset 3px 0 0 var(--crimson),inset 0 0 0 1px rgba(217,179,108,.24);
  }
  body.is-nav-open{overflow:hidden}
  .zone-index{right:0;left:0;width:auto;max-height:70vh;overflow:auto}
  .zone-index__list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-grid > .footer-brand{grid-column:1 / -1}
  .footer-grid > .footer-col:last-child{grid-column:1 / -1}
  .brand__name{font-size:15px}
  .brand__sub{font-size:9.5px;letter-spacing:.16em}
  .btn--index{display:none}
}
@media (max-width:640px){
  body{font-size:16px;line-height:1.85}
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .band__inner{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-legal{flex-direction:column;align-items:flex-start}
  .btn--switch{padding:8px 12px;font-size:11.5px;letter-spacing:.06em}
  .chapter{gap:12px}
  .media--wide{aspect-ratio:16/9}
}

/* ---------- 11 reduced motion ---------- */
@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.js [data-reveal]{opacity:1;transform:none}
  .nav[data-open]{transform:none}
  .btn--gold{background-position:50% 50%}
}