/* ============================================================
   博狗看台 · 共享样式 /assets/site.css
   ============================================================ */

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:104px}
body{margin:0}
h1,h2,h3,h4,h5,p,ul,ol,dl,figure,blockquote,pre{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse}

/* ---------- tokens ---------- */
:root{
  --red:#8E1F2B;
  --red-dark:#5C121C;
  --gold:#D9A441;
  --gold-light:#F0D9A6;
  --ink:#2F3A42;
  --mist:#6F838F;
  --cream:#F6F1E7;
  --paper:#FFFDF8;
  --green:#2E6B57;
  --orange:#E0703C;

  --line:3px;
  --shadow:6px 6px 0 var(--red-dark);
  --shadow-hover:6px 9px 0 var(--red-dark);
  --rail:64px;

  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC","STSong","SimSun",Georgia,serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Futura","Avenir Next","Helvetica Neue",Helvetica,Arial,system-ui,sans-serif;

  --dur:.2s;
  --ease:ease-out;
}

/* ---------- base ---------- */
body{
  background:var(--cream);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
#main-content{flex:1 0 auto;display:block}
::selection{background:var(--gold);color:var(--red-dark)}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px}

/* ---------- typography ---------- */
.display{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(40px,6vw,88px);
  line-height:1.05;
  letter-spacing:-.02em;
  color:var(--ink);
}
.headline{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(26px,3.4vw,44px);
  line-height:1.18;
  letter-spacing:-.01em;
}
.lede{font-size:clamp(16px,1.5vw,19px);line-height:1.7;max-width:34em;color:var(--ink)}
.prose{max-width:34em;line-height:1.75}
.num{font-family:var(--font-num);font-weight:800;letter-spacing:.06em;font-size:1.5em;line-height:1}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:800;letter-spacing:.3em;
  color:var(--red);text-transform:uppercase;
}
.eyebrow::before{content:"";width:28px;height:3px;background:var(--gold)}
.anno{
  writing-mode:vertical-rl;
  font-size:12px;font-weight:700;letter-spacing:.3em;
  color:var(--mist);
}
strong{font-weight:800}
.band--red .display,.band--dark .display,.band--ink .display{color:var(--cream)}
.band--red .headline,.band--dark .headline,.band--ink .headline{color:var(--cream)}
.band--red .eyebrow,.band--dark .eyebrow,.band--ink .eyebrow{color:var(--gold-light)}
.band--red .lede,.band--dark .lede,.band--ink .lede{color:rgba(246,241,231,.86)}
.band--red a:hover,.band--dark a:hover,.band--ink a:hover{color:var(--gold)}

/* ---------- utilities ---------- */
.wrap{width:min(1240px,100% - 40px);margin-inline:auto}
.wrap--narrow{width:min(760px,100% - 40px);margin-inline:auto}
.stack{display:grid;gap:var(--stack-gap,16px)}
.flow > * + *{margin-top:var(--flow-gap,16px)}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:12px;top:-96px;z-index:200;
  background:var(--ink);color:var(--cream);
  border:3px solid var(--gold);
  padding:10px 16px;font-weight:700;font-size:13px;letter-spacing:.12em;
  transition:top var(--dur) var(--ease);
}
.skip-link:focus{top:12px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--paper);
  border-bottom:3px solid var(--red-dark);
  box-shadow:0 6px 0 rgba(92,18,28,.08);
}
.site-header::after{
  content:"";display:block;height:6px;
  background:repeating-linear-gradient(90deg,var(--mist) 0 1px,transparent 1px 14px);
  opacity:.35;
}
.header-frame{
  width:min(1400px,100% - 40px);
  margin-inline:auto;
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:clamp(12px,2vw,32px);
  padding:14px 0;
}
.header-brand{display:flex;align-items:center;gap:12px;grid-area:brand}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand__mark{
  background:var(--red);color:var(--gold-light);
  font-family:var(--font-num);font-weight:800;font-size:12px;letter-spacing:.16em;
  padding:6px 8px;border:2px solid var(--red-dark);
  box-shadow:3px 3px 0 var(--red-dark);
}
.brand__name{
  font-family:var(--font-display);font-weight:800;font-size:22px;
  letter-spacing:.06em;color:var(--red-dark);
}
.brand__note{
  writing-mode:vertical-rl;height:38px;
  font-size:10px;font-weight:700;letter-spacing:.34em;color:var(--mist);
}
.header-actions{display:flex;align-items:center;gap:12px;grid-area:actions}

/* island trigger */
.island-trigger{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--gold);color:var(--red-dark);
  border:3px solid var(--red-dark);
  padding:9px 14px;font-weight:800;font-size:13px;letter-spacing:.1em;
  box-shadow:5px 5px 0 var(--red-dark);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.island-trigger::before{
  content:"";width:8px;height:8px;background:var(--red-dark);
  box-shadow:0 0 0 0 rgba(92,18,28,.4);
}
.island-trigger:hover{transform:translateY(-3px);box-shadow:5px 8px 0 var(--red-dark);background:var(--gold-light)}

/* nav toggle */
.nav-toggle{
  display:none;align-items:center;gap:9px;
  border:3px solid var(--ink);background:var(--paper);color:var(--ink);
  padding:9px 12px;font-weight:800;font-size:13px;letter-spacing:.14em;
  box-shadow:4px 4px 0 var(--ink);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-toggle:hover{transform:translateY(-3px);box-shadow:4px 7px 0 var(--ink)}
.nav-toggle__bars{
  width:16px;height:2px;background:currentColor;
  box-shadow:0 -5px 0 currentColor,0 5px 0 currentColor;
}
.nav-toggle__label{white-space:nowrap}

/* nav */
.site-nav{grid-area:nav}
.site-nav__list{display:flex;flex-wrap:wrap;justify-content:center;gap:2px}
.site-nav__list a{
  display:block;padding:9px 13px;
  font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--ink);
  border-left:3px solid transparent;
  border-bottom:3px solid transparent;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-nav__list a:hover{background:var(--gold-light);border-bottom-color:var(--gold)}
.site-nav__list a[aria-current="page"]{
  background:var(--red);color:var(--cream);border-bottom-color:var(--gold);
}

/* left rail frame */
.rail{display:none}
.rail__text{
  writing-mode:vertical-rl;color:var(--gold);
  font-size:12px;font-weight:700;letter-spacing:.5em;
}

/* scroll progress */
.scroll-progress{
  position:absolute;left:0;bottom:-3px;height:3px;width:0;
  background:var(--gold);z-index:3;
}

/* ---------- footer ---------- */
.site-footer{
  margin-top:auto;
  background:var(--red-dark);
  color:var(--cream);
  border-top:3px solid var(--gold);
}
.footer-band{width:100%}
.footer-band__inner{
  width:min(1240px,100% - 40px);
  margin-inline:auto;
  padding:clamp(24px,3.6vw,44px) 0;
  display:grid;
  gap:18px;
}
.footer-band--paths{background:var(--red-dark);color:var(--cream)}
.footer-band--index{background:var(--paper);color:var(--ink);border-top:3px solid var(--red-dark)}
.footer-band--legal{background:var(--ink);color:var(--cream)}
.footer-band__label{
  font-size:12px;font-weight:800;letter-spacing:.3em;color:var(--gold);
}
.path-list{display:grid;grid-template-columns:repeat(4,1fr);border-left:3px solid var(--gold)}
.path-link{
  display:grid;grid-template-columns:auto 1fr;gap:2px 12px;
  padding:14px 16px;border-right:3px solid rgba(240,217,166,.22);
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.path-link:hover{background:var(--red);color:var(--cream)}
.path-link__num{
  font-family:var(--font-num);font-weight:800;font-size:20px;letter-spacing:.06em;
  color:var(--gold);line-height:1.3;
}
.path-link__label{font-weight:800;font-size:15px;letter-spacing:.06em}
.path-link__meta{grid-column:2;font-size:12px;letter-spacing:.08em;color:rgba(246,241,231,.6)}
.footer-band__inner--cols{grid-template-columns:1.4fr 1fr 1fr;gap:clamp(20px,3vw,48px)}
.footer-col{min-width:0}
.footer-col__title{
  font-size:12px;font-weight:800;letter-spacing:.28em;color:var(--red);
  padding-bottom:8px;border-bottom:3px solid var(--ink);margin-bottom:12px;
}
.footer-links{display:grid;gap:8px}
.footer-links a{
  display:inline-block;font-size:14px;font-weight:600;letter-spacing:.04em;
  border-bottom:2px solid transparent;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.footer-links a:hover{border-bottom-color:var(--gold);color:var(--red)}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand__mark{
  background:var(--red);color:var(--gold-light);
  font-family:var(--font-num);font-weight:800;font-size:12px;letter-spacing:.16em;
  padding:6px 8px;border:2px solid var(--red-dark);
}
.footer-brand__name{
  font-family:var(--font-display);font-weight:800;font-size:22px;letter-spacing:.06em;color:var(--red-dark);
}
.footer-brand__line{font-size:14px;color:var(--ink);max-width:24em}
.footer-brand__stamp{
  display:inline-block;margin-top:10px;
  border:2px solid var(--red);color:var(--red);
  font-size:11px;font-weight:700;letter-spacing:.2em;padding:4px 8px;
}
.footer-band__inner--legal{gap:14px}
.legal-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:10px 24px}
.legal-item{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:6px 0 6px 12px;border-left:3px solid rgba(217,164,65,.5);
  font-size:13px;
}
.legal-item__key{font-size:11px;font-weight:800;letter-spacing:.24em;color:var(--gold)}
.legal-item__val{font-weight:600;letter-spacing:.04em;color:var(--cream);word-break:break-all}
.legal-item--plain{border-left-color:rgba(111,131,143,.6)}
.copy-btn{
  border:2px solid var(--gold);color:var(--gold);
  font-size:11px;font-weight:800;letter-spacing:.16em;padding:3px 9px;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.copy-btn:hover{background:var(--gold);color:var(--red-dark)}
.legal-note{font-size:12px;letter-spacing:.06em;color:rgba(246,241,231,.68)}
.copy-hint{
  min-height:1.4em;font-size:12px;letter-spacing:.1em;color:var(--gold-light);
  opacity:0;transition:opacity var(--dur) var(--ease);
}
.copy-hint.is-on{opacity:1}

/* back to top */
.to-top{
  position:fixed;right:clamp(12px,2vw,28px);bottom:clamp(12px,2vw,28px);z-index:90;
  display:inline-flex;align-items:center;gap:8px;
  border:3px solid var(--red-dark);background:var(--gold);color:var(--red-dark);
  font-weight:800;font-size:12px;letter-spacing:.14em;padding:10px 14px;
  box-shadow:5px 5px 0 var(--red-dark);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{transform:translateY(-3px);box-shadow:5px 8px 0 var(--red-dark)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  border:3px solid var(--red-dark);background:var(--red);color:var(--cream);
  font-weight:800;font-size:14px;letter-spacing:.1em;
  padding:13px 22px;box-shadow:var(--shadow);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.btn:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.btn--ghost{background:var(--paper);color:var(--red-dark)}
.btn--ghost:hover{background:var(--gold-light)}
.btn--gold{background:var(--gold);color:var(--red-dark)}

/* ---------- breadcrumbs ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--mist);
}
.crumb a{border-bottom:2px solid transparent;transition:border-color var(--dur) var(--ease)}
.crumb a:hover{border-bottom-color:var(--gold)}
.crumb__sep{color:var(--gold);font-weight:800}
.crumb [aria-current="page"]{color:var(--red-dark)}

/* ---------- page head / frame ---------- */
.page-head{
  position:relative;
  border:var(--line) solid var(--red-dark);
  background:var(--paper);
  padding:clamp(26px,4.6vw,62px) clamp(20px,3.6vw,54px);
  box-shadow:8px 8px 0 rgba(92,18,28,.16);
  margin-top:clamp(22px,3.4vw,52px);
  display:grid;gap:18px;
}
.page-head--red{background:var(--red);color:var(--cream);border-color:var(--red-dark)}
.page-head--red .display{color:var(--cream)}
.page-head--red .lede{color:rgba(246,241,231,.88)}
.page-head--red .crumb,.page-head--red .crumb a{color:rgba(246,241,231,.78)}
.page-head--red .crumb [aria-current="page"]{color:var(--gold-light)}
.tick-frame{
  position:relative;
  border:var(--line) solid var(--red-dark);
  padding:clamp(18px,2.4vw,32px);
  background:
    linear-gradient(var(--gold),var(--gold)) left top/18px 3px no-repeat,
    linear-gradient(var(--gold),var(--gold)) left top/3px 18px no-repeat,
    linear-gradient(var(--gold),var(--gold)) right top/18px 3px no-repeat,
    linear-gradient(var(--gold),var(--gold)) right top/3px 18px no-repeat,
    linear-gradient(var(--gold),var(--gold)) left bottom/18px 3px no-repeat,
    linear-gradient(var(--gold),var(--gold)) left bottom/3px 18px no-repeat,
    linear-gradient(var(--gold),var(--gold)) right bottom/18px 3px no-repeat,
    linear-gradient(var(--gold),var(--gold)) right bottom/3px 18px no-repeat,
    var(--paper);
}

/* ---------- sections & bands ---------- */
.section{padding:clamp(40px,5.6vw,84px) 0}
.section--tight{padding:clamp(26px,3.4vw,48px) 0}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:14px 28px;margin-bottom:clamp(18px,2.4vw,32px)}
.band{width:100%}
.band__inner{
  width:min(1240px,100% - 40px);margin-inline:auto;
  padding:clamp(30px,4.4vw,64px) 0;
}
.band--paper{background:var(--paper)}
.band--gold{background:var(--gold-light)}
.band--red{background:var(--red);color:var(--cream)}
.band--dark{background:var(--red-dark);color:var(--cream)}
.band--ink{background:var(--ink);color:var(--cream)}

/* ---------- grids & rhythm ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,32px)}
.grid--7-5{grid-template-columns:7fr 5fr}
.grid--5-7{grid-template-columns:5fr 7fr}
.stair{display:grid;gap:14px}
.stair > *:nth-child(2){margin-left:24px}
.stair > *:nth-child(3){margin-left:48px}
.stair > *:nth-child(4){margin-left:72px}
.stagger > *:nth-child(2){margin-top:8px}
.stagger > *:nth-child(3){margin-top:16px}
.stagger > *:nth-child(4){margin-top:24px}

/* ---------- cards ---------- */
.card{
  background:var(--paper);
  border:3px solid var(--ink);
  box-shadow:var(--shadow);
  padding:clamp(18px,2.2vw,28px);
  display:grid;gap:10px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.card__title{font-family:var(--font-display);font-weight:800;font-size:clamp(20px,2vw,26px);line-height:1.3}
.card__meta{font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--mist)}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  border:2px solid var(--red-dark);background:var(--cream);color:var(--red-dark);
  font-size:12px;font-weight:800;letter-spacing:.14em;padding:4px 9px;
}
.tag--gold{background:var(--gold-light);border-color:var(--gold)}
.tag--ok{background:rgba(46,107,87,.1);border-color:var(--green);color:var(--green)}
.tag--warn{background:rgba(224,112,60,.12);border-color:var(--orange);color:var(--orange)}

/* ---------- index list ---------- */
.index-list{display:grid;border-top:3px solid var(--ink)}
.index-list__item{
  display:grid;grid-template-columns:64px 1fr auto;gap:8px 16px;align-items:baseline;
  padding:14px 8px;border-bottom:1px solid rgba(111,131,143,.35);
  transition:background-color var(--dur) var(--ease);
}
.index-list__item:hover{background:var(--gold-light)}
.index-list__num{font-family:var(--font-num);font-weight:800;font-size:22px;letter-spacing:.06em;color:var(--red)}
.index-list__title{font-weight:800;font-size:17px;letter-spacing:.04em}
.index-list__meta{font-size:12px;letter-spacing:.1em;color:var(--mist)}

/* ---------- research board ---------- */
.board{
  display:grid;gap:12px;
  border-left:6px solid var(--gold);
  padding-left:clamp(14px,2vw,22px);
}
.board__label{font-size:11px;font-weight:800;letter-spacing:.3em;color:var(--mist)}
.board__summary{font-family:var(--font-display);font-weight:800;font-size:clamp(19px,2vw,24px);line-height:1.4}
.board__evidence{border:2px dashed var(--mist);background:var(--paper);padding:12px 14px;font-size:15px;line-height:1.7}
.board__terms{display:flex;flex-wrap:wrap;gap:8px}
.board__more a{font-weight:800;border-bottom:3px solid var(--gold)}

/* ---------- media frames ---------- */
.media-frame{
  position:relative;width:100%;
  background:var(--paper);
  border:3px solid var(--red-dark);
  box-shadow:8px 8px 0 rgba(92,18,28,.85);
  overflow:hidden;
  aspect-ratio:16/10;
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--placeholder{
  background-image:repeating-linear-gradient(135deg,rgba(142,31,43,.14) 0 10px,transparent 10px 20px);
  background-color:var(--paper);
}
.media-frame__cap{
  position:absolute;left:0;bottom:0;
  background:var(--red-dark);color:var(--gold-light);
  font-size:12px;letter-spacing:.18em;padding:6px 12px;
}
.media-frame__tag{
  position:absolute;top:0;right:0;
  background:var(--gold);color:var(--red-dark);
  font-size:12px;font-weight:800;letter-spacing:.08em;padding:5px 10px;
}

/* ---------- details ---------- */
.details-panel{
  border:3px solid var(--ink);background:var(--paper);
  box-shadow:6px 6px 0 rgba(92,18,28,.9);
}
.details-panel > summary{
  cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;gap:14px;align-items:center;
  padding:14px 18px;font-weight:800;letter-spacing:.04em;
  background:var(--cream);border-bottom:3px solid transparent;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.details-panel > summary::-webkit-details-marker{display:none}
.details-panel > summary::after{content:"＋";color:var(--red);font-weight:800}
.details-panel[open] > summary{background:var(--gold-light);border-bottom-color:var(--ink)}
.details-panel[open] > summary::after{content:"－"}
.details-panel__body{padding:16px 18px 20px;font-size:15px;line-height:1.75}

/* ---------- tabs ---------- */
.tabset{display:grid}
.tabset__bar{display:flex;flex-wrap:wrap;border-bottom:3px solid var(--ink)}
.tab{
  border:3px solid var(--ink);border-bottom:0;background:var(--cream);color:var(--ink);
  padding:10px 16px;margin-right:-3px;margin-bottom:-3px;
  font-weight:800;font-size:13px;letter-spacing:.1em;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.tab:hover{background:var(--gold-light)}
.tab[aria-selected="true"]{background:var(--red);color:var(--cream);border-color:var(--red-dark)}
.tabpanel{padding:20px 0}
.tabpanel[hidden]{display:none}

/* ---------- reveal ---------- */
html.js-on .reveal{
  opacity:0;transform:translateY(12px);
  transition:opacity .45s var(--ease),transform .45s var(--ease);
}
html.js-on .reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (min-width:1180px){
  body{padding-left:var(--rail)}
  .rail{
    display:flex;align-items:center;justify-content:center;
    position:fixed;left:0;top:0;bottom:0;width:var(--rail);z-index:70;
    background:var(--red-dark);border-right:3px solid var(--red);
  }
}
@media (max-width:1080px){
  .footer-band__inner--cols{grid-template-columns:1fr 1fr}
  .footer-col--brand{grid-column:1 / -1}
  .path-list{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1000px){
  .header-frame{
    grid-template-columns:1fr auto;
    grid-template-areas:"brand actions" "nav nav";
    gap:10px 12px;padding:12px 0;
  }
  .brand__note{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{display:none;width:100%}
  .site-nav[data-open]{display:block;border-top:3px solid var(--red-dark);padding-top:8px}
  .site-nav__list{flex-direction:column;gap:0;justify-content:flex-start}
  .site-nav__list a{
    padding:13px 6px;font-size:16px;
    border-left:0;border-bottom:1px solid rgba(111,131,143,.3);
    border-right:0;
  }
  .site-nav__list a[aria-current="page"]{border-bottom-color:var(--gold)}
}
@media (max-width:900px){
  .grid--7-5,.grid--5-7{grid-template-columns:1fr}
  .stair > *:nth-child(2){margin-left:14px}
  .stair > *:nth-child(3){margin-left:28px}
  .stair > *:nth-child(4){margin-left:42px}
  .index-list__item{grid-template-columns:44px 1fr;gap:6px 12px}
  .index-list__meta{grid-column:2}
  .stagger > *:nth-child(2),.stagger > *:nth-child(3),.stagger > *:nth-child(4){margin-top:0}
}
@media (max-width:640px){
  body{font-size:16px}
  .header-frame,.wrap,.wrap--narrow,.footer-band__inner,.band__inner{width:min(100% - 28px,1240px)}
  .island-trigger{padding:8px 11px;font-size:12px}
  .nav-toggle{padding:8px 10px}
  .path-list{grid-template-columns:1fr;border-left:0}
  .path-link{border-right:0;border-left:3px solid var(--gold);border-bottom:2px solid rgba(240,217,166,.2)}
  .footer-band__inner--cols{grid-template-columns:1fr}
  .to-top{padding:9px 12px;font-size:11px}
  .anno{writing-mode:horizontal-tb;letter-spacing:.2em}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html.js-on .reveal{opacity:1;transform:none}
  .card:hover,.btn:hover,.island-trigger:hover,.nav-toggle:hover,.to-top:hover{transform:none}
}