/* ==========================================================================
   银河总站 · 共享样式表 /assets/site.css
   01 Reset · 02 Tokens · 03 Base · 04 Layout · 05 Type · 06 Components
   07 Header · 08 Footer · 09 Utilities · 10 Responsive · 11 Motion
   ========================================================================== */

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

/* 02 · Tokens ------------------------------------------------------------- */
:root{
  --void:#070B18;
  --deep:#0E1730;
  --orbit:#16224A;
  --line:#2A3A6B;
  --silver:#8C9BB8;
  --moon:#E8EDF7;
  --mist:#F5F7FB;
  --ink:#111A33;
  --violet:#7B5CD6;
  --violet-soft:#A78BFA;
  --highlight:#C9D6F0;

  --muted:var(--silver);
  --hair:var(--line);

  --radius-lg:26px;
  --radius-md:18px;
  --radius-sm:12px;
  --pill:999px;

  --shell:1240px;
  --gutter:clamp(18px,4vw,44px);

  --font-display:"Inter Tight","Helvetica Neue","Source Han Sans SC","Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Helvetica Neue",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"SF Mono","JetBrains Mono",ui-monospace,Menlo,monospace;
}

/* 03 · Base --------------------------------------------------------------- */
body{
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.8;
  letter-spacing:.005em;
  color:var(--moon);
  background:var(--void);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:rgba(123,92,214,.45);color:#fff}
:focus-visible{outline:2px solid var(--highlight);outline-offset:3px;border-radius:6px}

/* 04 · Layout ------------------------------------------------------------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.band{padding-block:clamp(48px,7vw,96px)}
.band--void{background:var(--void);color:var(--moon)}
.band--deep{background:var(--deep);color:var(--moon)}
.band--orbit{
  background:linear-gradient(180deg,var(--deep) 0%,var(--orbit) 100%);
  color:var(--moon);
}
.band--mist{
  background:var(--mist);
  color:var(--ink);
  --muted:#5B6A88;
  --hair:#D7DFEE;
}

.grid-12{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:clamp(18px,2.4vw,32px);
}
.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}
.offset-1{grid-column-start:2}

/* 05 · Type --------------------------------------------------------------- */
.display{
  font-family:var(--font-display);
  font-weight:200;
  font-size:clamp(2.6rem,7vw,6rem);
  line-height:1.02;
  letter-spacing:-.02em;
  color:currentColor;
}
.display--sm{
  font-size:clamp(2rem,4.4vw,3.4rem);
  line-height:1.1;
  letter-spacing:-.015em;
}
.lede{
  font-size:clamp(1rem,1.35vw,1.16rem);
  line-height:1.85;
  color:var(--muted);
  max-width:46ch;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  letter-spacing:.16em;
  font-weight:500;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.eyebrow::before{
  content:"";
  display:block;
  width:1px;
  height:14px;
  background:var(--violet);
}
.section-head{display:grid;gap:12px;max-width:62ch}
.section-head__title{
  font-family:var(--font-display);
  font-weight:300;
  font-size:clamp(1.6rem,3vw,2.6rem);
  line-height:1.15;
  letter-spacing:-.015em;
}
.section-head__note{font-size:15px;line-height:1.85;color:var(--muted);margin:0}
.prose{max-width:62ch;font-size:16.5px;line-height:1.85}
.prose p+p{margin-top:1.05em}
.prose a{color:var(--violet-soft);text-underline-offset:3px}
.prose h2,.prose h3{
  font-family:var(--font-display);
  font-weight:300;
  letter-spacing:-.01em;
  line-height:1.25;
  margin-top:1.8em;
}
.prose h2{font-size:clamp(1.4rem,2.2vw,1.9rem)}
.prose h3{font-size:1.18rem;font-weight:500}
.prose ul{margin-top:1em;padding-left:1.1em;list-style:disc}
.prose li+li{margin-top:.45em}

/* 06 · Components --------------------------------------------------------- */
/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border-radius:var(--pill);
  border:1px solid transparent;
  font-family:inherit;
  font-size:14px;
  font-weight:500;
  line-height:1.4;
  letter-spacing:.02em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
}
.btn--primary{
  background:var(--violet);
  color:#fff;
  border-color:rgba(167,139,250,.6);
}
.btn--primary:hover,.btn--primary:focus-visible{background:#8A6CE4;transform:translateY(-2px)}
.btn--ghost{
  background:transparent;
  color:var(--moon);
  border-color:rgba(123,92,214,.55);
}
.btn--ghost:hover,.btn--ghost:focus-visible{
  background:rgba(123,92,214,.18);
  border-color:var(--violet-soft);
  transform:translateY(-2px);
}
.btn--quiet{
  background:rgba(22,34,74,.72);
  color:var(--moon);
  border-color:var(--line);
}
.btn--quiet:hover,.btn--quiet:focus-visible{background:rgba(22,34,74,.95);border-color:var(--violet)}
.band--mist .btn--ghost{color:var(--ink);border-color:rgba(123,92,214,.45)}
.band--mist .btn--ghost:hover,.band--mist .btn--ghost:focus-visible{background:rgba(123,92,214,.12)}
.band--mist .btn--quiet{background:#fff;color:var(--ink);border-color:#D7DFEE}

/* cards */
.card{
  position:relative;
  display:block;
  padding:clamp(20px,2.4vw,30px);
  border-radius:var(--radius-lg);
  border:1px solid var(--hair);
  background:rgba(22,34,74,.55);
  color:var(--moon);
  text-decoration:none;
  transition:transform .24s ease,border-color .24s ease,background-color .24s ease;
}
.card:hover,.card:focus-visible{
  transform:translateY(-4px);
  border-color:rgba(123,92,214,.7);
  background:rgba(22,34,74,.88);
}
.card--light{background:#fff;color:var(--ink);border-color:#DDE4F2}
.card--light:hover,.card--light:focus-visible{background:#fff;border-color:rgba(123,92,214,.55);box-shadow:0 18px 40px -28px rgba(17,26,51,.55)}
.card__title{
  font-family:var(--font-display);
  font-weight:400;
  font-size:clamp(1.05rem,1.5vw,1.25rem);
  line-height:1.35;
  letter-spacing:-.01em;
}
.card__note{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--muted)}
.card__meta{
  margin-top:18px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.card:hover .card__meta{color:var(--violet-soft)}

/* pills / tabs */
.pill-set{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 15px;
  border-radius:var(--pill);
  border:1px solid var(--hair);
  background:rgba(22,34,74,.5);
  color:var(--muted);
  font-size:12.5px;
  letter-spacing:.06em;
  text-decoration:none;
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.pill:hover{color:var(--moon);border-color:rgba(123,92,214,.6)}
.pill[aria-selected="true"],.pill--active{
  background:rgba(123,92,214,.22);
  border-color:var(--violet);
  color:var(--moon);
}
.band--mist .pill{background:rgba(14,23,48,.04);border-color:#CFD8EA}
.band--mist .pill:hover{color:var(--ink);border-color:rgba(123,92,214,.6)}
.band--mist .pill[aria-selected="true"],.band--mist .pill--active{
  background:rgba(123,92,214,.14);
  border-color:var(--violet);
  color:var(--ink);
}
.tab-panel{display:block}

/* table */
.table{
  width:100%;
  border-collapse:collapse;
  font-size:14.5px;
  line-height:1.7;
  font-variant-numeric:tabular-nums;
}
.table caption{
  text-align:left;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
  padding-bottom:12px;
}
.table th{
  text-align:left;
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.14em;
  color:var(--muted);
  padding:12px 14px;
  border-bottom:1px solid var(--hair);
  white-space:nowrap;
}
.table td{padding:14px;border-bottom:1px solid var(--hair);transition:background-color .18s ease}
.table tbody tr:hover td{background:rgba(123,92,214,.1)}
.table .num{text-align:right;font-family:var(--font-mono);letter-spacing:.01em}

/* figure / image container */
.figure{margin:0;position:relative}
.figure__media{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--hair);
  aspect-ratio:16/10;
  background-color:var(--deep);
  background-image:
    linear-gradient(rgba(201,214,240,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(201,214,240,.07) 1px,transparent 1px),
    radial-gradient(80% 70% at 25% 15%,rgba(123,92,214,.32),transparent 62%),
    linear-gradient(160deg,var(--orbit),var(--deep));
  background-size:56px 56px,56px 56px,cover,cover;
}
.figure__media img{width:100%;height:100%;object-fit:cover}
.figure__media--tall{aspect-ratio:3/4}
.figure__media--wide{aspect-ratio:21/9}
.figure__caption{margin-top:10px;font-size:12px;letter-spacing:.1em;color:var(--muted)}

/* breadcrumb */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--muted);
}
.breadcrumb__link{
  color:var(--muted);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.breadcrumb__link:hover,.breadcrumb__link:focus-visible{color:var(--moon);border-color:var(--violet)}
.breadcrumb__sep{opacity:.5}
.breadcrumb__current{color:currentColor}

/* 07 · Header ------------------------------------------------------------- */
.skip-link{
  position:fixed;
  top:10px;
  left:50%;
  z-index:200;
  transform:translate(-50%,-220%);
  padding:10px 20px;
  border-radius:var(--pill);
  background:var(--violet);
  color:#fff;
  font-size:13px;
  letter-spacing:.04em;
  text-decoration:none;
  transition:transform .2s ease;
}
.skip-link:focus,.skip-link:focus-visible{transform:translate(-50%,0)}

.cmd-bar{
  position:sticky;
  top:0;
  z-index:60;
  color:var(--moon);
  background:
    radial-gradient(120% 160% at 88% -40%,rgba(123,92,214,.22),transparent 58%),
    linear-gradient(180deg,rgba(14,23,48,.97),rgba(14,23,48,.88));
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.cmd-bar__inner{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,22px);
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:10px var(--gutter);
}
.cmd-bar__progress{
  position:absolute;
  left:0;
  bottom:-1px;
  width:100%;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--violet),var(--violet-soft) 70%,var(--highlight));
  pointer-events:none;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
  color:var(--moon);
  text-decoration:none;
}
.brand__glyph{
  position:relative;
  flex:0 0 auto;
  width:34px;
  height:34px;
  border-radius:50%;
  border:1px solid var(--line);
  background:radial-gradient(circle at 32% 26%,rgba(123,92,214,.55),rgba(14,23,48,0) 62%);
}
.brand__glyph::before{
  content:"";
  position:absolute;
  inset:5px;
  border-radius:50%;
  border:1px solid rgba(201,214,240,.26);
  transform:rotate(-24deg) scaleY(.55);
}
.brand__glyph::after{
  content:"";
  position:absolute;
  top:0;
  right:3px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--violet-soft);
  box-shadow:0 0 10px 2px rgba(123,92,214,.6);
}
.brand__text{display:block;line-height:1.2}
.brand__name{
  display:block;
  font-size:17px;
  font-weight:600;
  letter-spacing:.05em;
}
.brand__line{
  display:block;
  margin-top:3px;
  font-size:10.5px;
  letter-spacing:.18em;
  color:var(--silver);
}

.site-nav{flex:1 1 auto;min-width:0}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:2px;
  overflow-x:auto;
  scrollbar-width:none;
}
.site-nav__list::-webkit-scrollbar{display:none}
.site-nav__item{display:flex;flex:0 0 auto}
.site-nav__link{
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:8px 12px;
  border-radius:var(--pill);
  border:1px solid transparent;
  color:var(--silver);
  font-size:14px;
  line-height:1.5;
  white-space:nowrap;
  text-decoration:none;
  transition:color .2s ease,background-color .2s ease,border-color .2s ease;
}
.site-nav__no{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.08em;
  color:rgba(140,155,184,.62);
  font-variant-numeric:tabular-nums;
}
.site-nav__link:hover,
.site-nav__link:focus-visible{
  color:var(--moon);
  background:var(--orbit);
  border-color:var(--line);
}
.site-nav__link[aria-current="page"]{
  color:var(--moon);
  background:rgba(123,92,214,.2);
  border-color:rgba(123,92,214,.6);
}
.site-nav__link[aria-current="page"] .site-nav__no{color:var(--violet-soft)}

.node-jump{position:relative;display:flex;align-items:center;flex:0 0 auto}
.node-jump__input{
  width:clamp(132px,13vw,172px);
  padding:8px 14px;
  border-radius:var(--pill);
  border:1px solid var(--line);
  background:rgba(7,11,24,.6);
  color:var(--moon);
  font-family:inherit;
  font-size:13px;
  line-height:1.5;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.node-jump__input::placeholder{color:rgba(140,155,184,.72)}
.node-jump__input:hover{border-color:rgba(123,92,214,.5)}
.node-jump__input:focus{
  outline:none;
  border-color:var(--violet-soft);
  background:rgba(22,34,74,.92);
  box-shadow:0 0 0 3px rgba(123,92,214,.22);
}
.node-jump__status{
  position:absolute;
  top:calc(100% + 8px);
  right:0;
  margin:0;
  padding:3px 10px;
  border-radius:8px;
  border:1px solid var(--line);
  background:var(--orbit);
  color:var(--silver);
  font-size:11.5px;
  letter-spacing:.06em;
  white-space:nowrap;
  font-variant-numeric:tabular-nums;
}
.node-jump__status:empty{display:none}

.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
  flex:0 0 auto;
  width:44px;
  height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(22,34,74,.7);
  color:var(--moon);
  cursor:pointer;
  transition:border-color .2s ease,background-color .2s ease;
}
.nav-toggle:hover,.nav-toggle:focus-visible{border-color:var(--violet);background:rgba(22,34,74,.95)}
.nav-toggle__bar{
  display:block;
  width:18px;
  height:1.5px;
  border-radius:2px;
  background:var(--moon);
  transition:transform .24s ease,opacity .2s ease;
}
.cmd-bar[data-open] .nav-toggle__bar:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.cmd-bar[data-open] .nav-toggle__bar:nth-child(2){opacity:0}
.cmd-bar[data-open] .nav-toggle__bar:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}
.cmd-bar__cta{flex:0 0 auto;white-space:nowrap}

/* 08 · Footer ------------------------------------------------------------- */
.site-footer{
  position:relative;
  overflow:hidden;
  padding-top:clamp(48px,7vw,88px);
  background:
    radial-gradient(110% 80% at 82% -10%,rgba(123,92,214,.18),transparent 60%),
    radial-gradient(90% 60% at 6% 0%,rgba(42,58,107,.55),transparent 62%),
    var(--void);
  color:var(--moon);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(140,155,184,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,155,184,.07) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(70% 80% at 50% 0%,#000,transparent 78%);
  mask-image:radial-gradient(70% 80% at 50% 0%,#000,transparent 78%);
}
.footer__inner{
  position:relative;
  z-index:1;
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.footer__top{
  display:grid;
  grid-template-columns:minmax(220px,1.25fr) minmax(130px,.75fr) minmax(130px,.75fr) minmax(240px,1.35fr);
  gap:clamp(26px,4vw,56px);
  padding-bottom:clamp(30px,4vw,54px);
}
.footer__brand .brand{margin-bottom:16px}
.footer__tagline{
  font-size:14.5px;
  line-height:1.9;
  color:rgba(232,237,247,.7);
  max-width:30ch;
}
.footer__meta{
  margin-top:14px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--silver);
  font-variant-numeric:tabular-nums;
}
.footer__col{min-width:0}
.footer__col-title{
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:16px;
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.18em;
  color:var(--silver);
}
.footer__col-title::before{
  content:"";
  width:14px;
  height:1px;
  background:var(--violet);
  flex:0 0 auto;
}
.footer__links{display:grid;gap:2px}
.footer__link{
  display:inline-flex;
  align-items:center;
  padding:5px 0;
  font-size:14.5px;
  color:rgba(232,237,247,.74);
  text-decoration:none;
  transition:color .2s ease,transform .2s ease;
}
.footer__link:hover,.footer__link:focus-visible{color:var(--moon);transform:translateX(3px)}
.footer__contact-list{display:grid;gap:0}
.footer__contact-item{
  display:grid;
  gap:2px;
  padding:9px 0;
  border-bottom:1px dashed rgba(42,58,107,.85);
}
.footer__contact-label{
  font-size:10.5px;
  letter-spacing:.18em;
  color:var(--silver);
}
.footer__contact-value{
  font-size:14px;
  line-height:1.7;
  color:var(--moon);
  word-break:break-word;
  font-variant-numeric:tabular-nums;
}
.footer__note{
  margin-top:16px;
  font-size:12.5px;
  line-height:1.9;
  color:var(--silver);
  max-width:42ch;
}
.footer__legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 26px;
  padding-block:18px clamp(22px,3vw,34px);
  border-top:1px solid rgba(42,58,107,.85);
  font-size:12px;
  color:var(--silver);
}
.footer__copy{margin:0;font-variant-numeric:tabular-nums}
.footer__copy--note{color:rgba(140,155,184,.78)}
.footer__legal-links{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  margin:0;
  margin-left:auto;
  padding:0;
  list-style:none;
}
.footer__legal-link{
  color:var(--silver);
  text-decoration:none;
  border-bottom:1px solid transparent;
  padding-bottom:1px;
  transition:color .2s ease,border-color .2s ease;
}
.footer__legal-link:hover,.footer__legal-link:focus-visible{color:var(--moon);border-color:var(--violet)}

.to-top{
  position:fixed;
  right:clamp(14px,2.4vw,28px);
  bottom:clamp(14px,2.4vw,28px);
  z-index:55;
  padding:10px 18px;
  border-radius:var(--pill);
  border:1px solid rgba(123,92,214,.55);
  background:rgba(14,23,48,.92);
  color:var(--moon);
  font-size:12.5px;
  letter-spacing:.08em;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,border-color .2s ease,background-color .2s ease;
}
.to-top[data-visible]{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.to-top:hover,.to-top:focus-visible{
  border-color:var(--violet-soft);
  background:rgba(123,92,214,.28);
}

/* 09 · Utilities ---------------------------------------------------------- */
.sr-only{
  position:absolute;
  width:1px;
  height:1px;
  margin:-1px;
  padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  clip-path:inset(50%);
  white-space:nowrap;
  border:0;
}
.rule{
  height:1px;
  border:0;
  background:linear-gradient(90deg,transparent,var(--hair) 20%,var(--hair) 80%,transparent);
}

/* 10 · Responsive --------------------------------------------------------- */
@media (max-width:1140px){
  .node-jump{display:none}
}
@media (max-width:1023px){
  .footer__top{grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,40px)}
  .footer__brand{grid-column:1/-1}
}
@media (max-width:899px){
  .nav-toggle{display:inline-flex}
  .cmd-bar__inner{flex-wrap:wrap;gap:10px 12px;padding-block:10px}
  .brand{order:1;flex:1 1 auto}
  .nav-toggle{order:2}
  .site-nav{
    order:3;
    flex:1 0 100%;
    display:none;
    padding-top:10px;
    border-top:1px solid rgba(42,58,107,.75);
  }
  .site-nav__list{flex-direction:column;align-items:stretch;gap:2px;overflow:visible}
  .site-nav__link{
    width:100%;
    padding:11px 14px;
    border-radius:14px;
    font-size:15px;
    justify-content:flex-start;
  }
  .node-jump{order:4;flex:1 0 100%;display:none}
  .node-jump__input{width:100%}
  .node-jump__status{position:static;margin-top:8px;display:inline-block}
  .cmd-bar__cta{order:5;flex:1 0 100%;display:none}
  .cmd-bar[data-open] .site-nav,
  .cmd-bar[data-open] .node-jump,
  .cmd-bar[data-open] .cmd-bar__cta{display:flex}
  .cmd-bar[data-open] .cmd-bar__inner{max-height:calc(100vh - 12px);overflow-y:auto}
  .grid-12 > *{grid-column:span 12}
  .offset-1{grid-column-start:auto}
}
@media (max-width:639px){
  body{font-size:16px}
  .footer__top{grid-template-columns:1fr}
  .footer__legal{flex-direction:column;align-items:flex-start}
  .footer__legal-links{margin-left:0}
  .footer__tagline,.footer__note{max-width:none}
  .band{padding-block:clamp(38px,9vw,64px)}
}

/* 11 · 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;
  }
  .card:hover,.card:focus-visible,
  .btn:hover,.btn:focus-visible,
  .footer__link:hover,.footer__link:focus-visible{transform:none}
}