/* ============================================================
   开云看台 · 共享样式 /assets/site.css
   夜场数据看台：深墨底 + 暖纸资料层 + 草皮绿识别 + 记分牌橙红
   ============================================================ */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;padding:0}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,address{margin:0}
ul[class],ol[class]{list-style:none;margin:0;padding:0}
img,svg,video{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit;margin:0}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
summary{list-style:none}

/* ---------- 2. tokens ---------- */
:root{
  --ink:#0B1A24;
  --ink-blue:#123648;
  --grass:#1E7A4E;
  --grass-deep:#0F5535;
  --score:#E4572E;
  --score-ink:#A83312;
  --paper:#F4EFE4;
  --paper-deep:#E6DDCC;
  --chalk:#FCFBF6;
  --steel:#6E7C86;
  --grid:#C9D6DC;

  --font-display:"Oswald","Barlow Condensed","Source Han Sans SC","Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --font-heading:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:var(--font-heading);
  --font-mono:"IBM Plex Mono","JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;

  --fs-13:13px;
  --fs-15:15px;
  --fs-18:18px;
  --fs-22:22px;
  --fs-28:28px;
  --fs-40:40px;
  --fs-64:64px;
  --fs-96:96px;

  --shell:1280px;
  --gutter:clamp(18px,4vw,56px);
  --radius:2px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --shadow-lift:0 22px 44px -30px rgba(11,26,36,.7);
  --chalk-text:rgba(252,251,246,.74);
  --chalk-dim:rgba(252,251,246,.5);
  --chalk-line:rgba(201,214,220,.26);
}

/* ---------- 3. base typography ---------- */
body{
  background-color:var(--paper);
  background-image:linear-gradient(180deg,rgba(230,221,204,.55) 0 1px,transparent 1px);
  background-size:100% 132px;
  color:var(--ink);
  font-family:var(--font-body);
  font-size:var(--fs-18);
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-heading);font-weight:700;line-height:1.25;letter-spacing:-.005em}
h1{font-size:clamp(32px,4.4vw,64px)}
h2{font-size:clamp(26px,3.2vw,44px);margin-top:1.1em}
h3{font-size:clamp(20px,2.2vw,26px);margin-top:1em}
p+p{margin-top:1.5em}
strong,b{font-weight:700}
::selection{background:var(--grass);color:var(--chalk)}

:focus-visible{outline:2px solid var(--grass);outline-offset:2px;border-radius:1px}
:focus:not(:focus-visible){outline:none}

/* ---------- 4. utilities ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:300;
  background:var(--score);color:var(--ink);
  padding:10px 18px;font-family:var(--font-mono);font-size:var(--fs-13);
  letter-spacing:.08em;font-weight:700;
}
.skip-link:focus{left:8px;top:8px}
.eyebrow{
  display:inline-block;
  font-family:var(--font-mono);font-size:var(--fs-13);
  letter-spacing:.2em;text-transform:uppercase;color:var(--score-ink);
}
.display{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(40px,7vw,112px);
  line-height:.94;
  letter-spacing:-.01em;
  text-transform:uppercase;
}
.rule{height:1px;border:0;background:var(--grid);margin:0}
.rule--chalk{
  height:2px;border:0;
  background-image:repeating-linear-gradient(90deg,rgba(252,251,246,.85) 0 16px,rgba(252,251,246,0) 16px 30px);
  opacity:.75;
}

/* ---------- 5. buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;
  font-family:var(--font-heading);font-size:var(--fs-15);font-weight:700;line-height:1.3;
  letter-spacing:.02em;text-align:left;
  border:1px solid transparent;border-radius:var(--radius);
  cursor:pointer;background:transparent;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .2s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn--score{background:var(--score);color:var(--ink)}
.btn--score:hover{background:#ef6c44}
.btn--grass{background:var(--grass);color:var(--chalk)}
.btn--grass:hover{background:var(--grass-deep)}
.btn--ghost{border-color:rgba(201,214,220,.5);color:var(--chalk)}
.btn--ghost:hover{border-color:var(--grass);background:rgba(30,122,78,.18)}
.btn--ink{background:var(--ink);color:var(--paper)}
.btn--ink:hover{background:var(--ink-blue)}
.btn--quiet{border-color:var(--score);color:var(--score-ink)}
.btn--quiet:hover{background:var(--score);color:var(--ink)}
.btn--block{width:100%}

/* ---------- 6. header ---------- */
.site-header{position:relative;z-index:120;background:var(--ink);color:var(--paper)}
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:3px;
  background:rgba(11,26,36,.45);z-index:140;pointer-events:none;
}
.scroll-progress__bar{
  display:block;height:100%;width:0;
  background:var(--score);
  box-shadow:0 0 10px rgba(228,87,46,.55);
  transition:width .14s linear;
}
.header-upper{background:var(--ink);border-bottom:1px solid var(--chalk-line)}
.header-upper__inner{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto auto;
  align-items:center;
  gap:clamp(14px,2.4vw,34px);
  padding-block:14px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{
  position:relative;flex:0 0 34px;width:34px;height:34px;
  background:var(--grass);border-radius:1px;overflow:hidden;
}
.brand__mark-line{
  position:absolute;left:7px;right:7px;height:2px;background:var(--chalk);
  transform-origin:left center;
}
.brand__mark-line:nth-child(1){top:11px;transform:rotate(-18deg)}
.brand__mark-line:nth-child(2){bottom:11px;transform:rotate(18deg)}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{
  font-family:var(--font-display);font-size:var(--fs-22);
  letter-spacing:.06em;color:var(--chalk);text-transform:uppercase;
}
.brand__note{font-family:var(--font-mono);font-size:var(--fs-13);color:var(--chalk-dim);letter-spacing:.05em}
.brand:hover .brand__name{color:#8fe0b4}
.header-upper__line{
  font-family:var(--font-mono);font-size:var(--fs-13);line-height:1.5;
  letter-spacing:.05em;color:var(--chalk-text);
  border-left:1px solid var(--chalk-line);padding-left:14px;
}
.season-switcher{
  display:flex;align-items:center;gap:10px;
  min-width:0;max-width:44vw;
}
.season-switcher__label{
  font-family:var(--font-mono);font-size:var(--fs-13);
  letter-spacing:.18em;color:var(--chalk-dim);flex:0 0 auto;
}
.season-switcher__track{
  display:flex;align-items:center;gap:6px;
  overflow-x:auto;padding:2px 0 4px;
  scrollbar-width:thin;
}
.season-switcher__input{
  position:absolute;width:1px;height:1px;opacity:0;pointer-events:none;
}
.season-switcher__item{
  flex:0 0 auto;white-space:nowrap;cursor:pointer;
  padding:5px 12px;border:1px solid rgba(201,214,220,.34);border-radius:1px;
  font-family:var(--font-mono);font-size:var(--fs-13);letter-spacing:.04em;
  color:var(--chalk-text);
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.season-switcher__item:hover{border-color:var(--grass);color:var(--chalk)}
.season-switcher__input:checked + .season-switcher__item{
  background:var(--grass);border-color:var(--grass);color:var(--chalk);
}
.season-switcher__input:focus-visible + .season-switcher__item{
  outline:2px solid var(--grass);outline-offset:2px;
}
.header-lower{background:var(--ink-blue)}
.header-lower__inner{
  display:grid;grid-template-columns:minmax(0,1fr) auto;
  align-items:center;gap:18px;
}
.site-nav__list{display:flex;flex-wrap:wrap;align-items:center;gap:2px}
.site-nav__link{
  position:relative;display:block;
  padding:16px 18px;
  font-size:var(--fs-15);font-weight:700;color:rgba(252,251,246,.78);
  transition:color .22s var(--ease),background-color .22s var(--ease);
}
.site-nav__link::after{
  content:"";position:absolute;left:18px;right:18px;bottom:10px;height:1px;
  background:var(--chalk);transform:scaleX(0);transform-origin:left center;
  transition:transform .28s var(--ease);
}
.site-nav__link:hover{color:var(--chalk)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{
  color:var(--chalk);background-color:rgba(30,122,78,.3);
}
.site-nav__link[aria-current="page"]::after{
  background:var(--score);transform:scaleX(1);
}
.header-lower__meta{
  font-family:var(--font-mono);font-size:var(--fs-13);
  color:var(--chalk-dim);white-space:nowrap;letter-spacing:.04em;
  border-left:1px solid var(--chalk-line);padding-left:18px;
}
.nav-toggle{
  display:none;align-items:center;gap:12px;
  background:transparent;border:1px solid rgba(201,214,220,.36);border-radius:var(--radius);
  color:var(--chalk);padding:12px 14px;cursor:pointer;
  font-family:var(--font-mono);font-size:var(--fs-13);letter-spacing:.16em;
  transition:border-color .22s var(--ease),background-color .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--grass);background:rgba(30,122,78,.16)}
.nav-toggle__bars{display:grid;gap:4px;width:20px;flex:0 0 20px}
.nav-toggle__bars span{
  display:block;height:2px;background:var(--chalk);transform-origin:center;
  transition:transform .28s var(--ease),opacity .28s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 7. footer ---------- */
.site-footer{
  position:relative;margin-top:clamp(48px,8vw,120px);
  background:var(--ink);color:var(--paper);
  border-top:4px solid var(--grass);
}
.site-footer::before{
  content:"";position:absolute;top:-4px;left:0;width:62%;height:4px;background:var(--grass);
}
.site-footer::after{
  content:"";position:absolute;top:-4px;right:0;width:38%;height:4px;background:var(--score);
}
.footer-main__inner{
  display:grid;
  grid-template-columns:minmax(220px,1fr) minmax(0,2.1fr);
  gap:clamp(26px,5vw,72px);
  padding-block:clamp(40px,6vw,76px);
}
.footer-brand__name{
  font-family:var(--font-display);font-size:var(--fs-28);
  letter-spacing:.06em;color:var(--chalk);text-transform:uppercase;
}
.footer-brand__note{
  margin-top:8px;font-family:var(--font-mono);font-size:var(--fs-13);
  color:var(--chalk-text);letter-spacing:.05em;
}
.footer-brand__line{
  margin-top:14px;font-size:var(--fs-15);line-height:1.7;color:var(--chalk-dim);max-width:34em;
}
.footer-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
.footer-nav__title{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-heading);font-size:var(--fs-15);font-weight:700;
  color:var(--chalk);letter-spacing:.06em;margin-bottom:14px;
}
.footer-nav__title::before{
  content:"";width:14px;height:3px;background:var(--grass);flex:0 0 14px;
}
.footer-nav__list{display:flex;flex-direction:column;gap:2px}
.footer-nav__link{
  display:inline-block;padding:5px 0;
  font-size:var(--fs-15);color:var(--chalk-text);
  border-bottom:1px solid transparent;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.footer-nav__link:hover{color:var(--chalk);border-bottom-color:var(--grass)}
.footer-contact{
  background:var(--ink-blue);border-top:1px solid var(--chalk-line);
}
.footer-contact__inner{
  display:grid;grid-template-columns:minmax(200px,1fr) minmax(0,2.1fr);
  gap:clamp(20px,4vw,56px);
  padding-block:clamp(26px,3.6vw,44px);
}
.footer-contact__lead{
  font-size:var(--fs-15);line-height:1.75;color:var(--chalk-text);max-width:28em;
}
.footer-contact__list{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px clamp(18px,3vw,40px);
}
.footer-contact__item{
  display:flex;flex-direction:column;gap:2px;
  border-left:1px solid var(--chalk-line);padding-left:12px;
}
.footer-contact__k{
  font-family:var(--font-mono);font-size:var(--fs-13);
  letter-spacing:.14em;color:var(--chalk-dim);
}
.footer-contact__v{
  font-family:var(--font-mono);font-size:var(--fs-13);line-height:1.65;
  color:var(--chalk-text);word-break:break-word;
}
.footer-legal{border-top:1px solid var(--chalk-line);background:var(--ink)}
.footer-legal__inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 26px;
  padding-block:20px;
}
.footer-legal__copy,.footer-legal__icp,.footer-legal__note{
  font-family:var(--font-mono);font-size:var(--fs-13);letter-spacing:.04em;
}
.footer-legal__copy{color:var(--chalk-text)}
.footer-legal__icp{color:var(--chalk-dim)}
.footer-legal__note{color:var(--chalk-dim);margin-left:auto}

/* ---------- 8. breadcrumbs ---------- */
.breadcrumbs{padding:18px 0;font-family:var(--font-mono);font-size:var(--fs-13);color:var(--steel)}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumbs li+li::before{content:"/";margin-right:8px;color:var(--grid)}
.breadcrumbs a{color:var(--ink-blue);border-bottom:1px solid var(--grid);transition:border-color .2s var(--ease)}
.breadcrumbs a:hover{border-bottom-color:var(--grass)}
.breadcrumbs [aria-current="page"]{color:var(--score-ink)}

/* ---------- 9. sections & layout ---------- */
.section{padding-block:clamp(40px,7vw,96px)}
.section--band{background:var(--paper-deep)}
.section--deep{background:var(--ink);color:var(--paper)}
.section--deep h2,.section--deep h3{color:var(--chalk)}
.layout-split{
  display:grid;grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(18px,3vw,40px);align-items:start;
}
.layout-split__rail{grid-column:1 / span 3;min-width:0}
.layout-split__main{grid-column:4 / span 9;min-width:0}
.layout-split--mirror .layout-split__rail{grid-column:10 / span 3}
.layout-split--mirror .layout-split__main{grid-column:1 / span 9}
.rail-note{
  position:sticky;top:120px;
  writing-mode:vertical-rl;
  font-family:var(--font-mono);font-size:var(--fs-13);
  letter-spacing:.24em;text-transform:uppercase;color:var(--steel);
}
.section-head{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 18px;
  margin-bottom:clamp(20px,3vw,40px);
  padding-bottom:14px;border-bottom:1px solid var(--grid);
}
.section-head__no{
  font-family:var(--font-mono);font-size:var(--fs-13);
  letter-spacing:.2em;color:var(--score-ink);
}
.section-head__title{
  font-family:var(--font-heading);font-weight:700;
  font-size:clamp(26px,3.2vw,44px);line-height:1.25;color:inherit;
}

/* ---------- 10. prose ---------- */
.prose{max-width:42em;font-size:var(--fs-18);line-height:1.85}
.prose p+p{margin-top:1.5em}
.prose h2{margin-top:2.2em;margin-bottom:.6em}
.prose h3{margin-top:1.8em;margin-bottom:.4em}
.prose ul,.prose ol{margin-top:1em;padding-left:1.3em}
.prose li+li{margin-top:.5em}
.prose a{color:var(--score-ink);border-bottom:1px solid var(--grass)}
.prose a:hover{background:rgba(30,122,78,.14)}
.prose--lead{font-size:var(--fs-22);line-height:1.7;color:var(--ink-blue)}

/* ---------- 11. data components ---------- */
.kpi{display:flex;flex-direction:column;gap:6px}
.kpi__value{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(48px,7vw,112px);line-height:.92;letter-spacing:-.01em;
  color:var(--score);
}
.kpi__label{
  font-family:var(--font-mono);font-size:var(--fs-13);
  letter-spacing:.12em;color:var(--steel);
}
.section--deep .kpi__label{color:var(--chalk-dim)}
.card{
  background:var(--paper);border:1px solid var(--grid);border-radius:var(--radius);
  padding:clamp(18px,2.4vw,32px);
  box-shadow:0 14px 34px -30px rgba(11,26,36,.6);
}
.card--deep{background:var(--ink-blue);border-color:var(--chalk-line);color:var(--paper)}
.card--glass{
  background:rgba(11,26,36,.55);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(252,251,246,.18);color:var(--paper);
}
.card--score{transition:transform .28s var(--ease),box-shadow .28s var(--ease)}
.card--score:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}
.score-split{
  display:grid;grid-template-rows:1fr 1fr;
  border:1px solid rgba(252,251,246,.35);
  background:var(--chalk);border-radius:var(--radius);overflow:hidden;
}
.score-split__half{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 18px;
  font-family:var(--font-mono);font-size:var(--fs-13);letter-spacing:.1em;
}
.score-split__half--up{background:var(--grass);color:var(--chalk)}
.score-split__half--down{background:var(--ink-blue);color:var(--chalk)}
.score-split__value{
  font-family:var(--font-display);font-size:var(--fs-28);
  line-height:1;color:var(--chalk);
}
.tag{
  display:inline-block;padding:3px 10px;border:1px solid var(--grass);border-radius:1px;
  font-family:var(--font-mono);font-size:var(--fs-13);letter-spacing:.06em;
  color:var(--grass-deep);
}
.tag--score{border-color:var(--score);color:var(--score-ink)}
.tag--chalk{border-color:rgba(252,251,246,.5);color:var(--chalk)}

/* ---------- 12. data table ---------- */
.data-table{
  font-family:var(--font-mono);font-size:var(--fs-15);
  font-variant-numeric:tabular-nums;
  border-top:1px solid var(--grid);
}
.data-table th,.data-table td{
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--grid);
  vertical-align:middle;
}
.data-table thead th{
  background:var(--paper-deep);color:var(--ink);
  font-size:var(--fs-13);letter-spacing:.12em;text-transform:uppercase;
  position:sticky;top:0;
}
.data-table tbody tr:nth-child(even){background:rgba(230,221,204,.55)}
.data-table tbody tr:hover{background:rgba(30,122,78,.1)}
.data-sort{
  display:inline-flex;align-items:center;gap:8px;
  background:none;border:0;padding:0;cursor:pointer;
  font:inherit;letter-spacing:inherit;text-transform:inherit;color:inherit;
}
.data-sort::after{content:"↕";color:var(--steel)}
.data-sort[data-sort-dir="asc"]::after{content:"↑";color:var(--grass)}
.data-sort[data-sort-dir="desc"]::after{content:"↓";color:var(--grass)}

/* ---------- 13. expandable rounds ---------- */
.expand{
  background:var(--paper);border-top:1px solid var(--grid);border-radius:var(--radius);
}
.expand[open]{background:var(--chalk)}
.expand__summary{
  display:flex;align-items:center;gap:14px;cursor:pointer;
  padding:16px 18px;
  font-family:var(--font-mono);font-size:var(--fs-15);letter-spacing:.04em;color:var(--ink);
}
.expand__summary::-webkit-details-marker{display:none}
.expand__summary::after{
  content:"";width:11px;height:11px;margin-left:auto;flex:0 0 11px;
  border-right:2px solid var(--grass);border-bottom:2px solid var(--grass);
  transform:rotate(45deg);
  transition:transform .3s var(--ease);
}
.expand[open] .expand__summary::after{transform:rotate(-135deg)}
.expand__body{padding:0 18px 22px;font-size:var(--fs-15);line-height:1.8;color:var(--ink-blue)}

/* ---------- 14. media ---------- */
.media{
  position:relative;overflow:hidden;border-radius:var(--radius);
  background-color:var(--ink-blue);border:1px solid var(--grid);
}
.media img{width:100%;height:100%;object-fit:cover;filter:saturate(.72) contrast(1.05)}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(11,26,36,.04),rgba(11,26,36,.38));
}
.media--hero{aspect-ratio:16 / 9}
.media--wide{aspect-ratio:21 / 9}
.media--square{aspect-ratio:1 / 1}
.media--portrait{aspect-ratio:3 / 4}
.media--empty{
  background-image:
    linear-gradient(var(--chalk-line) 1px,transparent 1px),
    linear-gradient(90deg,var(--chalk-line) 1px,transparent 1px);
  background-size:48px 48px,48px 48px;
}
.media__placeholder{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:var(--fs-13);letter-spacing:.18em;
  color:var(--chalk-dim);text-transform:uppercase;
}
.media__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:12px 16px;
  font-family:var(--font-mono);font-size:var(--fs-13);line-height:1.6;
  color:var(--chalk);background:linear-gradient(180deg,rgba(11,26,36,0),rgba(11,26,36,.8));
}

/* ---------- 15. motion ---------- */
[data-reveal]{
  opacity:0;transform:translateX(24px);
  transition:opacity .48s var(--ease),transform .52s var(--ease);
}
[data-reveal].is-visible{opacity:1;transform:none}
.reveal-quiet{opacity:0;transition:opacity .5s var(--ease)}
.reveal-quiet.is-visible{opacity:1}

/* ---------- 16. responsive ---------- */
@media (min-width:901px){
  .site-header{position:sticky;top:0}
}
@media (max-width:1180px){
  .header-upper__inner{grid-template-columns:auto minmax(0,1fr) auto}
  .header-upper__line{display:none}
  .season-switcher{max-width:none}
}
@media (max-width:980px){
  .header-upper__inner{grid-template-columns:1fr auto;row-gap:10px}
  .brand{grid-column:1;grid-row:1}
  .header-upper__inner .btn{grid-column:2;grid-row:1;justify-self:end;padding:9px 14px;font-size:var(--fs-13)}
  .season-switcher{grid-column:1 / -1;grid-row:2}
  .header-lower__inner{grid-template-columns:1fr;gap:0;padding-block:10px}
  .nav-toggle{display:inline-flex}
  .header-lower__meta{display:none}
  .site-nav{display:none;padding:6px 0 14px;border-top:1px solid var(--chalk-line);margin-top:10px}
  .site-nav[data-open]{display:block}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__link{padding:14px 4px;font-size:var(--fs-18);border-bottom:1px solid var(--chalk-line)}
  .site-nav__link::after{display:none}
  .site-nav__link[aria-current="page"]{background-color:transparent;box-shadow:inset 3px 0 0 var(--score)}
}
@media (max-width:900px){
  .layout-split{grid-template-columns:repeat(6,minmax(0,1fr))}
  .layout-split__rail{grid-column:1 / -1}
  .layout-split__main{grid-column:1 / -1}
  .layout-split--mirror .layout-split__rail{grid-column:1 / -1}
  .layout-split--mirror .layout-split__main{grid-column:1 / -1}
  .rail-note{position:static;writing-mode:horizontal-tb;letter-spacing:.14em}
  .footer-main__inner{grid-template-columns:1fr;gap:32px}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-contact__inner{grid-template-columns:1fr;gap:20px}
  .footer-legal__note{margin-left:0}
}
@media (max-width:640px){
  body{font-size:var(--fs-15)}
  .prose{font-size:var(--fs-15)}
  .prose--lead{font-size:var(--fs-18)}
  .header-upper__inner .btn{padding:8px 12px}
  .brand__mark{flex-basis:28px;width:28px;height:28px}
  .brand__name{font-size:var(--fs-18)}
  .footer-nav{grid-template-columns:1fr}
  .footer-contact__list{grid-template-columns:1fr}
  .footer-legal__inner{flex-direction:column;align-items:flex-start;gap:6px}
  .kpi__value{font-size:var(--fs-64)}
  .data-table{font-size:var(--fs-13)}
  .data-table th,.data-table td{padding:10px 8px}
}

/* ---------- 17. reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal],.reveal-quiet{opacity:1;transform:none}
}