/* ============ 宝威体育 · 共享外壳样式 /assets/site.css ============ */

/* --- reset --- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit}
img,svg{max-width:100%}

/* --- tokens --- */
:root{
  --pitch-night:#071C18;
  --prairie:#1F6E4F;
  --prairie-light:#3E9A72;
  --bao-blue:#1B4E8C;
  --blue-deep:#0C2D52;
  --data-orange:#FF6A2B;
  --score-gold:#F2B733;
  --bone:#F5F2E9;
  --ink:#10161A;
  --slate:#5A6B70;

  --paper:rgba(255,255,255,.74);
  --hairline:rgba(16,22,26,.10);
  --bone-72:rgba(245,242,233,.72);
  --bone-62:rgba(245,242,233,.62);
  --bone-48:rgba(245,242,233,.48);

  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC","STSong",Georgia,"Times New Roman",serif;
  --font-body:"Inter","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;

  --fs-12:12px; --fs-14:14px; --fs-17:17px; --fs-21:21px;
  --fs-28:28px; --fs-38:38px; --fs-52:52px; --fs-72:72px;

  --r-lg:28px; --r-md:20px; --r-sm:14px; --r-pill:999px;
  --gap:20px;
  --shadow-1:0 10px 28px rgba(7,28,24,.08);
  --shadow-2:0 24px 50px rgba(7,28,24,.18);
  --shell:1240px;
  --header-h:76px;
}

/* --- base typography --- */
body{
  margin:0;
  background:var(--bone);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:var(--fs-17);
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.05;
  letter-spacing:-.02em;
  color:inherit;
}
h1{font-size:var(--fs-52)}
h2{font-size:var(--fs-38)}
h3{font-size:var(--fs-28);line-height:1.22;letter-spacing:-.01em}
h4{font-size:var(--fs-21);line-height:1.35;letter-spacing:0;font-weight:700}
p{letter-spacing:.01em}
a{color:inherit}
::selection{background:var(--prairie-light);color:var(--bone)}
:focus-visible{outline:2px solid var(--data-orange);outline-offset:3px;border-radius:10px}
#main-content{display:block}

/* --- utilities --- */
.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}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.text-slate{color:var(--slate)}
.text-bone{color:var(--bone)}
.stack>*+*{margin-top:16px}
.cluster{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.divider{height:1px;border:0;background:var(--hairline);margin:0}

/* --- layout --- */
.wrap{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:24px}
.wrap--narrow{max-width:900px}
.section{padding:72px 0}
.section--tight{padding:44px 0}
.grid{display:grid;gap:var(--gap)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--aside{grid-template-columns:minmax(0,7fr) minmax(0,4fr);column-gap:clamp(28px,7vw,96px)}

.surface{
  background:var(--paper);
  border:1px solid var(--hairline);
  border-radius:var(--r-lg);
  padding:clamp(24px,4vw,48px);
}

.prose{max-width:40em;color:var(--ink)}
.prose>*+*{margin-top:1.1em}
.prose h2{margin-top:2em;font-size:var(--fs-28)}
.prose h3{margin-top:1.6em;font-size:var(--fs-21)}
.prose ul{list-style:none}
.prose li{position:relative;padding-left:1.5em;margin-top:.5em}
.prose li::before{content:"";position:absolute;left:0;top:.8em;width:9px;height:2px;border-radius:2px;background:var(--prairie-light)}
.prose a{color:var(--bao-blue);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.prose a:hover{color:var(--data-orange)}
.prose strong{font-weight:700}
.prose blockquote{
  border-left:4px solid var(--prairie-light);
  padding:4px 0 4px 20px;
  font-family:var(--font-display);
  font-size:var(--fs-21);
  line-height:1.5;
  color:var(--blue-deep);
}

/* --- section heads / bands --- */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px 28px;margin-bottom:32px}
.section-head__text{max-width:40em}
.section-title{font-size:var(--fs-38)}
.section-lede{margin-top:10px;color:var(--slate);font-size:var(--fs-17)}
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:var(--fs-12);font-weight:700;letter-spacing:.16em;
  color:var(--prairie);margin-bottom:12px;
}
.kicker::before{content:"";width:24px;height:3px;border-radius:2px;background:var(--data-orange)}

.band{
  position:relative;overflow:hidden;
  border-radius:32px;
  padding:clamp(26px,4vw,44px);
  background:var(--bao-blue);
  color:var(--bone);
}
.band--green{background:linear-gradient(120deg,var(--prairie),var(--blue-deep))}
.band--night{background:var(--pitch-night)}
.band__title{font-family:var(--font-display);font-size:var(--fs-38);line-height:1.1;color:var(--bone)}
.band__text{margin-top:12px;max-width:44em;color:var(--bone-72)}
.band__chips{margin-top:24px}
.band:not(.band--night):not(.band--green)::after{
  content:"";position:absolute;right:-100px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%,rgba(62,154,114,.42),transparent 64%);
  pointer-events:none;
}

.chip-strip{display:flex;gap:10px;overflow-x:auto;padding:4px 2px 10px;scrollbar-width:thin}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--r-pill);
  background:rgba(245,242,233,.10);
  border:1px solid rgba(245,242,233,.22);
  color:var(--bone);
  font-size:var(--fs-12);font-weight:700;letter-spacing:.08em;white-space:nowrap;
  text-decoration:none;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.chip:hover{transform:translateY(-2px);background:rgba(245,242,233,.22)}
.chip.is-active{background:var(--score-gold);border-color:var(--score-gold);color:var(--ink)}

/* --- breadcrumb --- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:var(--fs-12);letter-spacing:.06em;color:var(--slate)}
.breadcrumb__item{display:inline-flex;align-items:center;gap:10px}
.breadcrumb__item+.breadcrumb__item::before{content:"";display:inline-block;width:14px;height:1px;background:rgba(90,107,112,.6)}
.breadcrumb a{color:var(--slate);text-decoration:none;border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease}
.breadcrumb a:hover{color:var(--bao-blue);border-bottom-color:var(--bao-blue)}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:700}

/* --- buttons --- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border:1px solid transparent;border-radius:var(--r-pill);
  background:transparent;
  font-family:var(--font-body);font-size:var(--fs-14);font-weight:700;letter-spacing:.06em;
  text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn--sm{height:38px;padding:0 18px;font-size:var(--fs-12)}
.btn--primary{background:var(--prairie);color:var(--bone)}
.btn--primary:hover{background:var(--prairie-light)}
.btn--cta{background:var(--data-orange);color:var(--ink)}
.btn--cta:hover{background:#FF7E45}
.btn--outline{border-color:rgba(27,78,140,.4);color:var(--blue-deep)}
.btn--outline:hover{background:rgba(27,78,140,.10)}
.btn--ghost{border-color:rgba(245,242,233,.38);color:var(--bone)}
.btn--ghost:hover{background:rgba(245,242,233,.14)}

/* --- bento --- */
.bento{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gap)}
.bento__cell{
  grid-column:span var(--span,6);
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  padding:26px;
  background:var(--paper);
  border:1px solid var(--hairline);
}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}
.span-12{grid-column:span 12}
.bento__cell--deep{background:var(--pitch-night);border-color:rgba(245,242,233,.12);color:var(--bone)}
.bento__cell--blue{background:var(--bao-blue);border-color:rgba(245,242,233,.14);color:var(--bone)}
.bento__cell--green{background:linear-gradient(150deg,var(--prairie),var(--blue-deep));border-color:rgba(245,242,233,.14);color:var(--bone)}
.bento__cell--soft{background:rgba(31,110,79,.08);border-color:rgba(31,110,79,.18)}
.bento__cell--flush{padding:0}

/* --- data card --- */
.data-card{display:flex;flex-direction:column;gap:10px;height:100%}
.data-card__num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:var(--fs-52);line-height:1;letter-spacing:-.03em;
  color:var(--data-orange);
}
.data-card__num--gold{color:var(--score-gold)}
.data-card__num--blue{color:var(--bao-blue)}
.data-card__num--bone{color:var(--bone)}
.data-card__label{font-size:var(--fs-14);font-weight:700;letter-spacing:.04em}
.data-card__note{font-size:var(--fs-14);line-height:1.7;color:var(--slate)}
.bento__cell--deep .data-card__note,
.bento__cell--blue .data-card__note,
.bento__cell--green .data-card__note{color:var(--bone-62)}
.bento__cell--deep .data-card__label,
.bento__cell--blue .data-card__label,
.bento__cell--green .data-card__label{color:var(--bone)}

/* --- tags --- */
.tag{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);border:1px solid rgba(27,78,140,.24);
  background:transparent;color:var(--blue-deep);
  font-size:var(--fs-12);font-weight:700;letter-spacing:.06em;
}
.tag--gold{background:rgba(242,183,51,.18);border-color:rgba(242,183,51,.5);color:#7A5606}
.tag--orange{background:rgba(255,106,43,.14);border-color:rgba(255,106,43,.42);color:#A83A0D}
.tag--green{background:rgba(31,110,79,.12);border-color:rgba(31,110,79,.3);color:var(--prairie)}

/* --- timeline --- */
.timeline-strip{display:flex;align-items:flex-end;gap:6px;height:64px}
.timeline-seg{
  flex:1 1 0;height:var(--h,46%);
  border-radius:8px 8px 4px 4px;
  background:rgba(27,78,140,.14);
  transition:background .35s ease,height .35s ease;
}
.timeline-seg.is-lit{background:linear-gradient(180deg,var(--data-orange),var(--prairie-light))}
.bento__cell--deep .timeline-seg,
.bento__cell--blue .timeline-seg{background:rgba(245,242,233,.16)}
.timeline-axis{display:flex;justify-content:space-between;margin-top:10px;font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.04em;color:var(--slate)}
.bento__cell--deep .timeline-axis,
.bento__cell--blue .timeline-axis{color:var(--bone-48)}

/* --- media frames --- */
.media-frame{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--r-lg);
  aspect-ratio:16/9;
  background:linear-gradient(140deg,var(--prairie),var(--blue-deep));
}
.media-frame::after{
  content:"";position:absolute;inset:0;border-radius:inherit;
  box-shadow:inset 0 0 0 1px rgba(245,242,233,.16);pointer-events:none;
}
.media-frame>img,.media-frame>svg,.media-frame>picture>img{
  display:block;width:100%;height:100%;object-fit:cover;
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--map{aspect-ratio:3/2}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--band{aspect-ratio:16/7;border-radius:24px}
.media-frame__caption{
  position:absolute;left:16px;right:16px;bottom:16px;
  padding:10px 14px;border-radius:16px;
  background:rgba(7,28,24,.74);color:var(--bone);
  font-size:var(--fs-12);letter-spacing:.06em;line-height:1.6;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}

/* --- reveal / spine / toc --- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease}
.reveal.is-in{opacity:1;transform:none}
.spine-section{position:relative}
.spine-section::before{
  content:"";position:absolute;left:-24px;top:8px;bottom:8px;width:0;
  border-radius:3px;background:linear-gradient(180deg,var(--prairie),var(--prairie-light));
  transition:width .45s ease;
}
.spine-section.is-in::before{width:4px}

.toc{
  display:flex;flex-direction:column;gap:4px;padding:18px;
  border-radius:24px;background:rgba(27,78,140,.06);border:1px solid rgba(27,78,140,.14);
}
.toc__title{font-size:var(--fs-12);font-weight:700;letter-spacing:.14em;color:var(--bao-blue);margin-bottom:6px}
.toc__link{
  display:block;padding:8px 12px;border-radius:14px;
  border-left:3px solid transparent;
  color:var(--slate);text-decoration:none;font-size:var(--fs-14);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc__link:hover{background:rgba(27,78,140,.08);color:var(--blue-deep)}
.toc__link.is-active{background:rgba(27,78,140,.12);color:var(--blue-deep);font-weight:700;border-left-color:var(--data-orange)}

/* ============ HEADER ============ */
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  padding:12px 20px;background:var(--bao-blue);color:var(--bone);
  border-radius:0 0 16px 0;font-size:var(--fs-14);font-weight:700;text-decoration:none;
}
.skip-link:focus{left:0}

.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,242,233,.94);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--hairline);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--prairie),var(--bao-blue) 55%,var(--prairie-light));
}
.site-header.is-condensed{box-shadow:var(--shadow-1)}
.header-progress{
  position:absolute;left:0;right:0;bottom:0;height:3px;
  background:rgba(16,22,26,.07);overflow:hidden;
}
.header-progress__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--prairie),var(--prairie-light) 46%,var(--data-orange));
  transition:width .12s linear;
}
.header-shell{
  position:relative;
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding:16px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  transition:padding .3s ease;
}
.site-header.is-condensed .header-shell{padding-top:9px;padding-bottom:9px}

.brand-lockup{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);flex:0 0 auto}
.brand-mark{
  flex:none;width:40px;height:40px;border-radius:14px;
  display:grid;place-items:center;color:var(--bone);
  background:linear-gradient(150deg,var(--prairie),var(--blue-deep));
  box-shadow:inset 0 0 0 1px rgba(245,242,233,.20);
  transition:width .3s ease,height .3s ease,border-radius .3s ease;
}
.brand-mark svg{width:23px;height:23px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-family:var(--font-display);font-weight:900;font-size:var(--fs-21);letter-spacing:.02em}
.brand-tag{margin-top:2px;font-size:var(--fs-12);letter-spacing:.08em;color:var(--slate)}
.site-header.is-condensed .brand-mark{width:32px;height:32px;border-radius:12px}
.site-header.is-condensed .brand-name{font-size:var(--fs-17)}
.site-header.is-condensed .brand-tag{display:none}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  height:40px;padding:0 15px;
  border-radius:var(--r-pill);border:1px solid rgba(27,78,140,.3);
  background:transparent;color:var(--blue-deep);
  font-size:var(--fs-12);font-weight:700;letter-spacing:.08em;cursor:pointer;
}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle__bars i{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.nav-cluster{display:flex;align-items:center;gap:20px}
.nav-pills{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.nav-pill{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid rgba(27,78,140,.22);
  color:var(--blue-deep);text-decoration:none;
  font-size:var(--fs-14);font-weight:600;letter-spacing:.04em;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.nav-pill:hover{background:rgba(27,78,140,.10);transform:translateY(-2px)}
.nav-pill[aria-current="page"]{background:var(--bao-blue);border-color:var(--bao-blue);color:var(--bone)}
.nav-pill[aria-current="page"]::after{
  content:"";position:absolute;left:50%;bottom:4px;width:22px;height:2px;
  border-radius:2px;background:var(--data-orange);transform:translateX(-50%);
}
.site-header.is-condensed .nav-pill{height:32px}
.nav-cta{flex:0 0 auto}

/* ============ FOOTER ============ */
.site-footer{
  position:relative;overflow:hidden;
  margin-top:72px;padding:64px 0 28px;
  background:var(--pitch-night);color:var(--bone);
  border-radius:32px 32px 0 0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;
  background:linear-gradient(90deg,var(--prairie),var(--prairie-light) 52%,var(--score-gold));
}
.site-footer::after{
  content:"";position:absolute;right:-120px;top:-150px;width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle at 34% 34%,rgba(62,154,114,.34),transparent 64%);
  pointer-events:none;
}
.footer-shell{position:relative;z-index:1;width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:24px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.5fr;gap:40px 32px}

.footer-wordmark{font-family:var(--font-display);font-weight:900;font-size:var(--fs-28);letter-spacing:.02em;color:var(--bone)}
.footer-pitch{margin-top:10px;font-size:var(--fs-14);letter-spacing:.06em;color:var(--bone-62)}
.footer-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.stat-cell{
  flex:1 1 96px;min-width:96px;
  padding:14px 16px;border-radius:18px;
  background:rgba(245,242,233,.06);border:1px solid rgba(245,242,233,.10);
}
.stat-num{
  display:block;font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:var(--fs-28);line-height:1.1;letter-spacing:-.02em;color:var(--score-gold);
}
.stat-label{display:block;margin-top:4px;font-size:var(--fs-12);letter-spacing:.08em;color:var(--bone-62)}

.footer-col__title{
  font-family:var(--font-body);font-size:var(--fs-12);font-weight:700;
  letter-spacing:.14em;color:var(--prairie-light);margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-link{
  display:inline-block;width:fit-content;
  color:var(--bone-72);text-decoration:none;font-size:var(--fs-14);letter-spacing:.02em;
  transition:color .2s ease,transform .2s ease;
}
.footer-link:hover{color:var(--bone);transform:translateX(3px)}

.contact-list{display:flex;flex-direction:column;gap:14px}
.contact-row{display:flex;flex-direction:column;gap:2px}
.contact-label{font-size:var(--fs-12);letter-spacing:.12em;color:var(--bone-48)}
.contact-value{font-size:var(--fs-14);letter-spacing:.02em;color:var(--bone);word-break:break-all}
.contact-value--mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.footer-note{margin-top:14px;max-width:34em;font-size:var(--fs-12);line-height:1.75;color:rgba(245,242,233,.5)}

.footer-base{
  margin-top:52px;padding-top:20px;
  border-top:1px solid rgba(245,242,233,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;
  font-size:var(--fs-12);letter-spacing:.06em;color:rgba(245,242,233,.52);
}
.footer-icp{font-family:var(--font-mono);letter-spacing:.02em}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){
  .nav-toggle{display:inline-flex}
  .nav-cluster{
    position:absolute;left:24px;right:24px;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:14px;
    padding:18px;border-radius:24px;
    background:var(--bone);border:1px solid var(--hairline);
    box-shadow:var(--shadow-2);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
  }
  .nav-cluster[data-open="true"]{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-pills{flex-direction:column;align-items:stretch;gap:6px}
  .nav-pill{height:46px;justify-content:flex-start;padding:0 18px;border-radius:16px;font-size:var(--fs-14)}
  .site-header.is-condensed .nav-pill{height:46px}
  .nav-pill[aria-current="page"]::after{left:auto;right:18px;top:50%;bottom:auto;width:18px;transform:translateY(-50%)}
  .nav-cta{width:100%}
  .grid--aside{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:1024px){
  .bento{grid-template-columns:repeat(6,minmax(0,1fr))}
  .bento__cell,.span-3,.span-4,.span-5,.span-6,.span-7,.span-8{grid-column:span 3}
  .span-12{grid-column:span 6}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col--brand,.footer-col--contact{grid-column:span 2}
  h1{font-size:var(--fs-38)}
  h2{font-size:var(--fs-28)}
}
@media (max-width:760px){
  .section{padding:52px 0}
  .section--tight{padding:36px 0}
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .spine-section::before{left:-14px}
  .header-shell{padding:14px 18px}
  .wrap,.footer-shell{padding-inline:18px}
}
@media (max-width:640px){
  .bento{grid-template-columns:minmax(0,1fr)}
  .bento__cell,.span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-12{grid-column:span 1}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-col--brand,.footer-col--contact{grid-column:span 1}
  .brand-tag{display:none}
  h1,h2{font-size:34px}
  h3{font-size:var(--fs-21)}
  .data-card__num{font-size:var(--fs-38)}
  .band,.bento__cell,.surface{border-radius:22px}
  .site-footer{border-radius:24px 24px 0 0;margin-top:56px;padding-top:48px}
}
@media (max-width:400px){
  .brand-name{font-size:var(--fs-17)}
}

/* ============ MOTION PREFERENCES ============ */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .reveal{opacity:1!important;transform:none!important}
  .spine-section::before{width:4px!important}
  .btn:hover,.nav-pill:hover,.chip:hover,.footer-link:hover{transform:none}
}