/* ============================================================
   MG ARCADE / site.css — 共享外壳与基础组件
   ============================================================ */

/* ---------- 1. 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,ul,ol{margin:0}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit}

/* ---------- 2. Tokens ---------- */
:root{
  --ink:#06070A;
  --panel:#11151F;
  --line:#2A303C;
  --paper:#F3EFE6;
  --rock:#8C9199;
  --cyan:#17E6FF;
  --magenta:#FF2E93;
  --amber:#FFB000;
  --moss:#6F8F6A;
  --clay:#C46A4A;
  --deep-teal:#0D2A31;

  --rail-w:272px;
  --bar-h:64px;
  --gap:clamp(14px,1.6vw,22px);
  --maxw:1180px;

  --font-sans:"HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --ease:160ms cubic-bezier(.2,.7,.3,1);
  --shadow-lift:0 18px 40px -28px rgba(0,0,0,.9),0 0 0 1px rgba(23,230,255,.18);
}

/* ---------- 3. Base ---------- */
html,body{min-height:100%}
body{
  position:relative;
  min-height:100dvh;
  color:var(--paper);
  background-color:var(--ink);
  background-image:
    radial-gradient(900px 520px at 92% -8%,rgba(255,46,147,.13),transparent 62%),
    radial-gradient(820px 520px at 2% 104%,rgba(23,230,255,.10),transparent 60%),
    repeating-linear-gradient(0deg,rgba(42,48,60,.30) 0 1px,transparent 1px 76px),
    repeating-linear-gradient(90deg,rgba(42,48,60,.30) 0 1px,transparent 1px 76px);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:1;
  pointer-events:none;
  opacity:.5;
  background:repeating-linear-gradient(0deg,rgba(255,255,255,.018) 0 1px,transparent 1px 4px);
}
body.is-nav-locked{overflow:hidden}

h1,h2,h3,h4,h5,h6{line-height:1.15;letter-spacing:-.02em;font-weight:800;color:var(--paper)}
h1{font-size:clamp(2rem,4.6vw,3.4rem);font-weight:900}
h2{font-size:clamp(1.45rem,2.6vw,2.1rem)}
h3{font-size:clamp(1.1rem,1.7vw,1.4rem);font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
strong,b{font-weight:700;color:#fff}
a{color:var(--cyan);text-decoration:none;transition:color var(--ease)}
a:hover{color:#7DF2FF}
::selection{background:rgba(23,230,255,.28);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

.container{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:clamp(16px,3vw,40px);
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.visually-hidden{
  position:absolute !important;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;
}

/* ---------- 4. Skip link ---------- */
.skip-link{
  position:fixed;
  inset-block-start:10px;
  inset-inline-start:10px;
  z-index:300;
  padding:12px 18px;
  background:var(--cyan);
  color:#04121A;
  font:700 14px/1 var(--font-sans);
  letter-spacing:.02em;
  border:0;
  transform:translateY(-180%);
  transition:transform var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{transform:translateY(0);outline:2px solid var(--paper);outline-offset:3px}

/* ---------- 5. Header : side rail ---------- */
.site-rail{
  position:fixed;
  inset-block-start:0;
  inset-inline-start:0;
  z-index:90;
  display:flex;
  flex-direction:column;
  width:var(--rail-w);
  height:100vh;
  height:100dvh;
  background:linear-gradient(180deg,#0A0C12 0%,#06070A 62%,#08050C 100%);
  border-inline-end:1px solid var(--line);
  box-shadow:inset -1px 0 0 rgba(23,230,255,.10),12px 0 40px -30px rgba(0,0,0,.95);
}
.rail-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 20px 18px;
  border-block-end:1px solid var(--line);
}
.rail-brand{display:flex;align-items:center;gap:12px;min-width:0;text-decoration:none;color:var(--paper)}
.rail-brand:hover{color:var(--paper)}
.rail-brand__mark{
  display:grid;place-items:center;flex:0 0 auto;width:42px;height:42px;
  font-family:var(--font-mono);font-size:15px;font-weight:700;letter-spacing:.04em;
  color:var(--cyan);background:rgba(23,230,255,.07);
  border:1px solid rgba(23,230,255,.55);
  text-shadow:0 0 10px rgba(23,230,255,.85);
  box-shadow:0 0 20px -8px rgba(23,230,255,.95),inset 0 0 14px -8px rgba(23,230,255,.95);
}
.rail-brand__text{display:flex;flex-direction:column;gap:3px;min-width:0}
.rail-brand__line{
  font-size:13px;font-weight:700;letter-spacing:.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.rail-brand__tag{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.04em;color:var(--rock);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.rail-toggle{display:none}

.rail-scrim{display:none}

.rail-drawer{
  display:flex;
  flex-direction:column;
  gap:16px;
  flex:1 1 auto;
  min-height:0;
  overflow-y:auto;
  padding:18px 0 22px;
  scrollbar-width:thin;
}
.rail-label{
  margin:0;padding-inline:20px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--rock);
}

.rail-nav{width:100%}
.rail-nav__list{list-style:none;margin:0;padding:0;border-block-start:1px solid rgba(42,48,60,.7)}
.rail-nav__item{border-block-end:1px solid rgba(42,48,60,.7)}
.rail-nav__link{
  position:relative;
  display:flex;align-items:center;gap:10px;
  min-height:46px;padding:11px 20px;
  color:#BFC6D2;font-size:15px;font-weight:600;text-decoration:none;
  transition:color var(--ease),background-color var(--ease);
}
.rail-nav__link::before{
  content:"";position:absolute;inset-inline-start:0;inset-block:6px;width:2px;
  background:transparent;transition:background var(--ease),box-shadow var(--ease);
}
.rail-nav__idx{
  font-family:var(--font-mono);font-size:10.5px;font-weight:500;letter-spacing:.06em;
  color:var(--rock);transition:color var(--ease);
}
.rail-nav__name{flex:1 1 auto;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rail-nav__link::after{
  content:"";flex:0 0 auto;width:5px;height:5px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px var(--cyan);
  opacity:0;transition:opacity var(--ease);
}
.rail-nav__link:hover{color:var(--paper);background:rgba(23,230,255,.05)}
.rail-nav__link:hover::before{background:var(--line)}
.rail-nav__link[aria-current="page"]{
  color:#fff;
  background:linear-gradient(90deg,rgba(23,230,255,.16),rgba(23,230,255,0) 78%);
}
.rail-nav__link[aria-current="page"]::before{background:var(--cyan);box-shadow:0 0 12px rgba(23,230,255,.95)}
.rail-nav__link[aria-current="page"]::after{opacity:1}
.rail-nav__link[aria-current="page"] .rail-nav__idx{color:var(--cyan)}

.rail-actions{display:grid;gap:8px;padding-inline:20px}

.rail-meter{
  display:grid;grid-template-columns:1fr auto;align-items:center;
  gap:6px 10px;padding-inline:20px;
}
.rail-meter__label{
  grid-column:1 / -1;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.2em;color:var(--rock);
}
.rail-meter__track{
  position:relative;display:block;height:3px;
  background:rgba(42,48,60,.95);overflow:hidden;
}
.rail-meter__fill{
  display:block;height:100%;width:0%;
  background:linear-gradient(90deg,var(--cyan),var(--magenta));
  box-shadow:0 0 10px rgba(23,230,255,.6);
}
.rail-meter__pct{
  font-family:var(--font-mono);font-size:10.5px;color:var(--cyan);
  min-width:36px;text-align:end;
}

.rail-top{
  align-self:start;
  margin-inline:20px;
  padding:9px 12px;
  background:transparent;
  border:1px solid var(--line);
  color:var(--rock);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  cursor:pointer;
  opacity:0;visibility:hidden;
  transition:opacity var(--ease),color var(--ease),border-color var(--ease),background-color var(--ease);
}
.rail-top.is-ready{opacity:1;visibility:visible}
.rail-top:hover{color:var(--cyan);border-color:var(--cyan);background:rgba(23,230,255,.08)}

.rail-meta{
  margin:0;padding-inline:20px;
  font-family:var(--font-mono);font-size:10.5px;line-height:1.9;
  letter-spacing:.04em;color:#5C636F;
}

/* ---------- 6. Buttons & links ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 18px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--paper);
  font-family:var(--font-sans);font-size:14px;font-weight:700;letter-spacing:.02em;line-height:1;
  text-decoration:none;cursor:pointer;border-radius:0;
  transition:color var(--ease),background-color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.btn--block{width:100%}
.btn--primary{
  background:var(--cyan);border-color:var(--cyan);color:#04121A;
  box-shadow:0 0 22px -10px rgba(23,230,255,.95);
}
.btn--primary:hover{background:#63F2FF;border-color:#63F2FF;color:#04121A;box-shadow:0 0 30px -8px rgba(23,230,255,.95)}
.btn--ghost{color:var(--cyan);border-color:rgba(23,230,255,.42);background:rgba(23,230,255,.04)}
.btn--ghost:hover{color:#04121A;background:var(--cyan);border-color:var(--cyan)}
.btn--magenta{background:var(--magenta);border-color:var(--magenta);color:#12030A;box-shadow:0 0 22px -10px rgba(255,46,147,.9)}
.btn--magenta:hover{background:#FF5CA6;border-color:#FF5CA6;color:#12030A}
.btn--quiet{color:var(--rock);border-color:var(--line)}
.btn--quiet:hover{color:var(--paper);border-color:var(--rock);background:rgba(42,48,60,.4)}

.link-sweep{position:relative;display:inline-block;color:var(--cyan);text-decoration:none}
.link-sweep::after{
  content:"";position:absolute;inset-inline-start:0;inset-block-end:-2px;
  width:100%;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:left;
  transition:transform 180ms cubic-bezier(.2,.7,.3,1);
}
.link-sweep:hover::after,.link-sweep:focus-visible::after{transform:scaleX(1)}

/* ---------- 7. Footer ---------- */
.site-foot{
  position:relative;
  margin-block-start:clamp(48px,8vw,110px);
  padding-block:clamp(34px,5vw,62px) 0;
  background:linear-gradient(180deg,#0A0C13 0%,#06070A 55%,#05060A 100%);
  border-block-start:1px solid var(--line);
  overflow:hidden;
}
.site-foot::before{
  content:"";position:absolute;inset-block-start:0;inset-inline:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,230,255,.85) 18%,rgba(255,46,147,.85) 78%,transparent);
  opacity:.8;
}
.site-foot::after{
  content:"";position:absolute;inset-block-start:0;inset-inline:0;height:130px;
  background:radial-gradient(620px 130px at 12% 0,rgba(23,230,255,.11),transparent 70%);
  pointer-events:none;
}
.site-foot__grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1.65fr);
  gap:clamp(24px,4vw,56px);
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:clamp(16px,3vw,40px);
}
.foot-brand{display:flex;flex-direction:column;align-items:flex-start;min-width:0}
.foot-brand__link{
  display:inline-block;
  font-size:clamp(1.6rem,3vw,2.15rem);
  font-weight:900;letter-spacing:-.03em;line-height:1.1;
  color:var(--paper);text-decoration:none;
  transition:color var(--ease),text-shadow var(--ease);
}
.foot-brand__link:hover{color:var(--cyan);text-shadow:0 0 26px rgba(23,230,255,.55)}
.foot-brand__desc{
  margin-block:12px 0;
  max-width:34ch;
  font-size:14px;line-height:1.8;color:var(--rock);
}
.foot-contact{display:grid;gap:8px;width:100%;margin-block-start:20px}
.foot-copy{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;
  width:100%;padding:10px 12px;
  background:rgba(17,21,31,.75);
  border:1px solid var(--line);
  color:var(--paper);
  font-family:var(--font-mono);font-size:12.5px;
  text-align:start;cursor:pointer;
  transition:border-color var(--ease),background-color var(--ease);
}
.foot-copy:hover{border-color:rgba(23,230,255,.6);background:rgba(23,230,255,.06)}
.foot-copy__key{font-size:10px;letter-spacing:.16em;color:var(--rock)}
.foot-copy__val{
  font-variant-numeric:tabular-nums;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.foot-copy__state{font-size:10.5px;letter-spacing:.1em;color:var(--cyan)}
.foot-copy.is-copied{border-color:rgba(111,143,106,.75);background:rgba(111,143,106,.14)}
.foot-copy.is-copied .foot-copy__state{color:var(--moss)}
.foot-hours{
  margin-block:12px 0;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;color:#5C636F;
}

.foot-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.4vw,28px)}
.foot-col__title{
  position:relative;
  padding-block-end:10px;
  margin:0;
  font-family:var(--font-mono);font-size:10.5px;font-weight:500;
  letter-spacing:.22em;text-transform:uppercase;color:var(--rock);
  border-block-end:1px solid var(--line);
}
.foot-col__title::after{
  content:"";position:absolute;inset-block-end:-1px;inset-inline-start:0;
  width:20px;height:1px;background:var(--cyan);box-shadow:0 0 8px rgba(23,230,255,.9);
}
.foot-col__list{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:2px}
.foot-link{
  position:relative;display:inline-block;
  padding-block:6px;
  color:#BFC6D2;font-size:14px;font-weight:500;text-decoration:none;
  transition:color var(--ease),transform var(--ease);
}
.foot-link::after{
  content:"";position:absolute;inset-block-end:3px;inset-inline-start:0;
  width:100%;height:1px;background:var(--cyan);
  transform:scaleX(0);transform-origin:left;
  transition:transform 180ms cubic-bezier(.2,.7,.3,1);
}
.foot-link:hover{color:var(--cyan);transform:translateX(2px)}
.foot-link:hover::after{transform:scaleX(1)}

.foot-vertical{display:none}

.foot-base{
  position:relative;
  z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;
  max-width:var(--maxw);
  margin:clamp(28px,4vw,48px) auto 0;
  padding:18px clamp(16px,3vw,40px) 26px;
  border-block-start:1px solid var(--line);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.03em;color:#5C636F;
}
.foot-base__meta{margin:0}
.foot-top{
  margin-inline-start:auto;
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;
  background:transparent;border:1px solid var(--line);
  color:var(--rock);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  cursor:pointer;
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
.foot-top:hover{color:var(--cyan);border-color:var(--cyan);background:rgba(23,230,255,.08)}

/* ---------- 8. Shared page building blocks ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--rock);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan);box-shadow:0 0 8px rgba(23,230,255,.9)}

.breadcrumb{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.05em;color:var(--rock)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;list-style:none;margin:0;padding:0}
.breadcrumb li{display:flex;align-items:center;gap:10px}
.breadcrumb li+li::before{content:"/";color:var(--line)}
.breadcrumb a{color:var(--rock);text-decoration:none}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--paper)}

.page-head{padding-block:clamp(26px,4vw,54px) clamp(18px,3vw,34px)}
.page-head__title{
  margin-block-start:14px;
  font-size:clamp(2rem,5vw,3.5rem);font-weight:900;
  letter-spacing:-.03em;line-height:1.06;
}
.page-head__lede{
  margin-block-start:16px;
  max-width:64ch;
  font-size:clamp(15px,1.6vw,17px);line-height:1.8;color:#C3C9D4;
}

.section{padding-block:clamp(34px,5vw,72px);border-block-start:1px solid rgba(42,48,60,.75)}
.section__head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:12px 24px;
  margin-block-end:clamp(18px,2.4vw,30px);
}
.divider{height:1px;background:var(--line);border:0;margin-block:clamp(24px,3vw,40px)}

.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gap)}
.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-9{grid-column:span 9}
.span-12{grid-column:span 12}

.card{
  position:relative;
  padding:clamp(16px,2vw,24px);
  background:linear-gradient(160deg,#12161F 0%,#0D1018 100%);
  border:1px solid var(--line);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.card:hover,.card:focus-within{border-color:rgba(23,230,255,.55);box-shadow:var(--shadow-lift);transform:translateY(-2px)}
.card__title{margin:0 0 8px;font-size:1.05rem;font-weight:700;letter-spacing:-.01em}
.card__meta{font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--rock)}
.card--accent{
  border-color:rgba(23,230,255,.4);
  background:linear-gradient(150deg,rgba(13,42,49,.92),#0B0E15 72%);
}
.card--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);background:rgba(17,21,31,.85);
  color:var(--rock);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
}
.tag--cyan{color:var(--cyan);border-color:rgba(23,230,255,.45);background:rgba(23,230,255,.08)}
.tag--amber{color:var(--amber);border-color:rgba(255,176,0,.45);background:rgba(255,176,0,.08)}
.tag--magenta{color:var(--magenta);border-color:rgba(255,46,147,.45);background:rgba(255,46,147,.08)}
.tag--moss{color:var(--moss);border-color:rgba(111,143,106,.55);background:rgba(111,143,106,.12)}
.tag--clay{color:var(--clay);border-color:rgba(196,106,74,.5);background:rgba(196,106,74,.1)}

.stat__value{
  display:block;
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(1.8rem,4vw,2.8rem);line-height:1;letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;
  color:var(--amber);text-shadow:0 0 24px rgba(255,176,0,.35);
}
.stat__unit{font-size:.42em;letter-spacing:.08em;color:var(--rock);margin-inline-start:.4em}
.stat__label{
  display:block;margin-block-start:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--rock);
}

.table-wrap{overflow-x:auto;border:1px solid var(--line);background:rgba(13,16,24,.6)}
.data-table{width:100%;border-collapse:collapse;font-size:14px}
.data-table caption{
  padding:12px;
  text-align:start;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;
  color:var(--rock);
}
.data-table th{
  padding:10px 12px;
  text-align:start;font-weight:500;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--rock);
  background:rgba(17,21,31,.95);
  border-block-end:1px solid var(--line);
  white-space:nowrap;
}
.data-table td{
  padding:12px;
  color:#C7CDD8;
  border-block-end:1px solid rgba(42,48,60,.75);
  vertical-align:top;
}
.data-table tbody tr:last-child td{border-block-end:0}
.data-table tbody tr{transition:background-color var(--ease)}
.data-table tbody tr:hover td{background:rgba(23,230,255,.06);color:var(--paper)}
.data-table .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--paper)}

.media-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(140deg,#0D2A31,#11151F 58%,#1A0E1A 100%);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(0deg,rgba(6,7,10,.22) 0 1px,transparent 1px 3px);
}
.media-frame--16x9{aspect-ratio:16 / 9}
.media-frame--4x3{aspect-ratio:4 / 3}
.media-frame--1x1{aspect-ratio:1 / 1}
.media-frame--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - 26px),calc(100% - 26px) 100%,0 100%)}
.media-frame--empty{
  display:grid;place-items:center;
  background-image:
    repeating-linear-gradient(45deg,rgba(42,48,60,.55) 0 1px,transparent 1px 10px),
    linear-gradient(140deg,#0D2A31,#0B0E15);
}
.media-frame__cap{
  position:absolute;inset-block-end:0;inset-inline-start:0;z-index:2;
  padding:8px 12px;
  background:rgba(6,7,10,.82);
  border-block-start:1px solid var(--line);border-inline-end:1px solid var(--line);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;color:var(--rock);
}

.note{
  padding:10px 0 10px 14px;
  border-inline-start:2px solid var(--amber);
  color:var(--rock);font-size:13.5px;line-height:1.8;
}

/* ---------- 9. Reveal ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(10px);
  transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1);
}
.js [data-reveal].is-in{opacity:1;transform:none}

/* ---------- 10. Responsive ---------- */
@media (min-width:1024px){
  body{padding-inline-start:var(--rail-w)}
  .foot-vertical{
    display:flex;
    position:absolute;
    inset-block:0;
    inset-inline-end:0;
    align-items:center;
    padding-inline-end:14px;
    writing-mode:vertical-rl;
    font-family:var(--font-mono);font-size:10px;letter-spacing:.42em;
    color:rgba(140,145,153,.5);
    pointer-events:none;
  }
  .site-foot__grid{padding-inline-end:58px}
}

@media (max-width:1023px){
  body{padding-block-start:var(--bar-h)}
  .site-rail{
    width:100%;
    height:var(--bar-h);
    flex-direction:row;
    border-inline-end:0;
    border-block-end:1px solid var(--line);
    background:rgba(6,7,10,.96);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    box-shadow:0 1px 0 rgba(23,230,255,.14),0 18px 40px -30px #000;
  }
  .rail-bar{
    width:100%;height:var(--bar-h);
    padding:0 14px;gap:10px;
    border-block-end:0;
  }
  .rail-brand{gap:10px;flex:1 1 auto}
  .rail-brand__mark{width:36px;height:36px;font-size:13px}
  .rail-brand__line{font-size:13px}
  .rail-brand__tag{display:none}
  .rail-toggle{
    display:inline-flex;align-items:center;gap:8px;
    flex:0 0 auto;
    min-height:44px;padding:10px 14px;
    background:transparent;
    border:1px solid rgba(23,230,255,.45);
    color:var(--cyan);
    font-family:var(--font-sans);font-size:13px;font-weight:600;letter-spacing:.1em;
    cursor:pointer;
    transition:background-color var(--ease),border-color var(--ease);
  }
  .rail-toggle:hover{background:rgba(23,230,255,.1);border-color:var(--cyan)}
  .rail-toggle__bars{display:grid;gap:4px;width:16px}
  .rail-toggle__bars i{display:block;height:1.5px;background:currentColor;transition:transform var(--ease),opacity var(--ease)}
  .rail-toggle__text{line-height:1}
  .site-rail[data-open="true"] .rail-toggle{border-color:var(--magenta);color:var(--magenta);background:rgba(255,46,147,.1)}
  .site-rail[data-open="true"] .rail-toggle__bars i:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
  .site-rail[data-open="true"] .rail-toggle__bars i:nth-child(2){opacity:0}
  .site-rail[data-open="true"] .rail-toggle__bars i:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

  .rail-scrim{
    display:block;
    position:fixed;
    inset:var(--bar-h) 0 0;
    z-index:1;
    background:rgba(6,7,10,.76);
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity var(--ease),visibility var(--ease);
  }
  .site-rail[data-open="true"] .rail-scrim{opacity:1;visibility:visible;pointer-events:auto}

  .rail-drawer{
    position:fixed;
    inset-block-start:var(--bar-h);
    inset-inline:0;
    z-index:2;
    height:calc(100dvh - var(--bar-h));
    padding:14px 0 34px;
    background:#080A11;
    border-block-start:1px solid rgba(42,48,60,.9);
    overflow-y:auto;
    -webkit-overflow-scrolling:touch;
    opacity:0;visibility:hidden;pointer-events:none;
    transform:translateY(-8px);
    box-shadow:0 40px 60px -40px #000;
    transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
  }
  .site-rail[data-open="true"] .rail-drawer{
    opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0);
  }
  .rail-nav__link{min-height:52px;font-size:16px;padding-inline:18px}
  .rail-actions{grid-template-columns:1fr 1fr;padding-inline:18px}
  .rail-label,.rail-meter,.rail-meta{padding-inline:18px}
  .rail-top{margin-inline:18px}
  .rail-drawer .rail-top{opacity:1;visibility:visible}

  .site-foot__grid{grid-template-columns:1fr;gap:32px}
  .foot-cols{grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
  .foot-base{margin-block-start:28px}
  .foot-top{margin-inline-start:0}
}

@media (max-width:900px){
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-9{grid-column:span 6}
}
@media (max-width:620px){
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-9,.span-12{grid-column:span 12}
  .foot-cols{grid-template-columns:1fr 1fr}
  .foot-base{flex-direction:column;align-items:flex-start;gap:8px}
  .foot-copy{font-size:12px}
  .data-table th,.data-table td{padding:10px}
}

/* ---------- 11. 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;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .card:hover{transform:none}
  .foot-link:hover{transform:none}
}