/* ============================================================
   亚星赛事 · 共享样式 /assets/site.css
   深空底 + 网格刻度 + 语义色的数据指挥中心外壳
   ============================================================ */

:root{
  --ink:#060B18;
  --panel:#0C1426;
  --panel-deep:#080E1D;
  --line:#16223C;
  --text:#E8F1FF;
  --muted:#8FA3C4;
  --cyan:#22E0D0;
  --orange:#FF8A3D;
  --yellow:#FFD166;
  --blue:#4C7DFF;
  --green:#1FBF8F;
  --grid:#7C8DB5;

  --rail-w:232px;
  --topbar-h:68px;
  --radius:2px;
  --measure:38em;
  --ease:cubic-bezier(.22,.61,.36,1);

  --font-display:"Arial Narrow","Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0}
a{color:inherit;text-decoration:none}
kbd{font-family:var(--font-mono)}
table{border-collapse:collapse;width:100%}

/* ---------- 页面底座 ---------- */
body{
  min-height:100vh;
  padding-left:var(--rail-w);
  padding-top:var(--topbar-h);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 620px at 82% -12%, rgba(76,125,255,.11), transparent 62%),
    radial-gradient(900px 520px at -6% 104%, rgba(34,224,208,.07), transparent 66%),
    repeating-linear-gradient(0deg, rgba(124,141,181,.055) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(90deg, rgba(124,141,181,.055) 0 1px, transparent 1px 34px);
  background-attachment:fixed;
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  transition:padding-left 220ms var(--ease);
}
body.is-nav-open,
body.is-overlay-open{overflow:hidden}

main{display:block;min-height:56vh}
#main-content{scroll-margin-top:calc(var(--topbar-h) + 20px)}
main:focus{outline:none}

::selection{background:rgba(34,224,208,.28);color:#fff}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:1px;
}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:200;
  padding:11px 18px;
  background:var(--cyan);
  color:#04161A;
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  transform:translateY(-180%);
  transition:transform 180ms var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 顶部条 ---------- */
.topbar{
  position:fixed;
  top:0;
  left:var(--rail-w);
  right:0;
  height:var(--topbar-h);
  z-index:60;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-inline:clamp(14px,2.2vw,32px);
  background:rgba(6,11,24,.88);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  transition:left 220ms var(--ease);
}
.topbar::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg, rgba(34,224,208,.55), rgba(34,224,208,0) 42%);
  pointer-events:none;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  min-width:0;
  padding:2px 0;
}
.brand-mark{
  position:relative;
  flex:none;
  width:30px;
  height:30px;
  border:1px solid var(--line);
  background:linear-gradient(180deg, var(--panel), var(--panel-deep));
  display:grid;
  place-items:center;
}
.brand-mark::before{
  content:"";
  width:11px;
  height:11px;
  border:1px solid var(--cyan);
  transform:rotate(45deg);
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:4px;
  border-top:1px dashed rgba(124,141,181,.5);
  border-left:1px dashed rgba(124,141,181,.5);
}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.15;
  min-width:0;
}
.brand-name{
  font-family:var(--font-display);
  font-size:17px;
  font-weight:700;
  letter-spacing:.07em;
  color:var(--text);
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  white-space:nowrap;
}
.brand:hover .brand-mark::before{border-color:var(--yellow)}

.topbar__tools{
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
}

/* 状态灯 */
.status-lamp{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 11px;
  border:1px solid var(--line);
  background:rgba(12,20,38,.72);
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--muted);
  white-space:nowrap;
}
.status-lamp__dot{
  width:7px;height:7px;
  flex:none;
  background:var(--green);
  border-radius:50%;
  animation:lampPulse 4.6s ease-out infinite;
}
@keyframes lampPulse{
  0%{box-shadow:0 0 0 0 rgba(31,191,143,.55)}
  18%{box-shadow:0 0 0 6px rgba(31,191,143,0)}
  100%{box-shadow:0 0 0 0 rgba(31,191,143,0)}
}

/* 工具按钮 */
.tool-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:36px;
  padding:0 12px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--muted);
  font-size:13px;
  letter-spacing:.03em;
  cursor:pointer;
  transition:border-color 180ms var(--ease),color 180ms var(--ease),background-color 180ms var(--ease);
}
.tool-btn:hover{
  border-color:rgba(34,224,208,.5);
  color:var(--text);
  background:rgba(34,224,208,.06);
}
.tool-btn__ico{
  position:relative;
  width:12px;height:12px;
  flex:none;
  border:1px solid currentColor;
  border-radius:50%;
}
.tool-btn__ico::after{
  content:"";
  position:absolute;
  right:-4px;
  bottom:-3px;
  width:6px;
  height:1px;
  background:currentColor;
  transform:rotate(45deg);
}
.tool-btn__kbd{
  font-size:10px;
  padding:2px 5px;
  border:1px solid var(--line);
  color:var(--muted);
  line-height:1.2;
}

/* 移动端汉堡 */
.nav-toggle{
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  width:38px;
  height:38px;
  flex:none;
  border:1px solid var(--line);
  cursor:pointer;
  transition:border-color 180ms var(--ease),background-color 180ms var(--ease);
}
.nav-toggle:hover{border-color:rgba(34,224,208,.5);background:rgba(34,224,208,.06)}
.nav-toggle__bar{
  display:block;
  width:16px;
  height:1px;
  background:var(--text);
  transition:transform 200ms var(--ease),opacity 200ms var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- 侧边轨道 ---------- */
.rail{
  position:fixed;
  inset:0 auto 0 0;
  z-index:70;
  width:var(--rail-w);
  display:flex;
  flex-direction:column;
  padding:calc(var(--topbar-h) + 22px) 18px 22px;
  overflow-y:auto;
  overscroll-behavior:contain;
  background:linear-gradient(180deg, #0A101F 0%, #080D1A 58%, #060B18 100%);
  border-right:1px solid var(--line);
}
.rail::after{
  content:"";
  position:absolute;
  top:0;right:-1px;bottom:0;width:1px;
  background:linear-gradient(180deg, rgba(34,224,208,.5), rgba(34,224,208,0) 40%);
  pointer-events:none;
}
.rail__head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
  padding:0 10px 12px;
  margin-bottom:14px;
  border-bottom:1px solid var(--line);
}
.rail__label{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--muted);
}
.rail__count{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--cyan);
}

.nav{flex:1 1 auto}
.nav__list{
  display:flex;
  flex-direction:column;
  gap:2px;
}
.nav__item{display:block}
.nav__link{
  position:relative;
  display:grid;
  grid-template-columns:26px minmax(0,1fr);
  align-items:center;
  gap:10px;
  padding:10px;
  border:1px solid transparent;
  color:var(--muted);
  font-size:14.5px;
  letter-spacing:.02em;
  transition:color 180ms var(--ease),background-color 180ms var(--ease),border-color 180ms var(--ease);
}
.nav__idx{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:rgba(143,163,196,.7);
  transition:color 180ms var(--ease);
}
.nav__label{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav__link:hover{
  color:var(--text);
  background:rgba(34,224,208,.05);
  border-color:rgba(34,224,208,.22);
}
.nav__link[aria-current="page"]{
  color:var(--text);
  background:linear-gradient(90deg, rgba(34,224,208,.13), rgba(34,224,208,0));
  border-color:rgba(34,224,208,.34);
}
.nav__link[aria-current="page"] .nav__idx{color:var(--cyan)}
.nav__link[aria-current="page"]::before{
  content:"";
  position:absolute;
  left:-18px;
  top:50%;
  width:3px;
  height:18px;
  background:var(--cyan);
  transform:translateY(-50%);
}

.rail__foot{
  margin-top:auto;
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:14px;
}
.rail__meter{
  display:grid;
  grid-template-columns:1fr auto auto;
  align-items:baseline;
  gap:6px;
}
.rail__meter-label{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
}
.rail__meter-value{
  font-family:var(--font-mono);
  font-size:20px;
  line-height:1;
  color:var(--yellow);
}
.rail__meter-unit{
  font-family:var(--font-mono);
  font-size:10px;
  color:var(--muted);
}
.rail__meter-track{
  grid-column:1 / -1;
  position:relative;
  height:2px;
  margin-top:7px;
  background:var(--line);
  overflow:hidden;
}
.rail__meter-fill{
  position:absolute;
  inset:0 auto 0 0;
  width:0%;
  background:linear-gradient(90deg, var(--cyan), var(--blue));
  transition:width 120ms linear;
}

/* 遮罩 */
.nav-scrim{display:none}
.nav-scrim[data-open]{
  display:block;
  position:fixed;
  inset:0;
  z-index:65;
  background:rgba(4,7,14,.66);
  cursor:pointer;
}

/* ---------- 快速跳转调板 ---------- */
.quickjump{
  position:fixed;
  inset:0;
  z-index:90;
  display:grid;
  align-items:start;
  justify-items:center;
  padding:12vh 20px 24px;
  background:rgba(4,7,14,.74);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
}
.quickjump[hidden]{display:none}
.quickjump__panel{
  width:min(620px,100%);
  padding:18px;
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:0 30px 80px -30px rgba(0,0,0,.95);
}
.quickjump__head{
  display:flex;
  align-items:center;
  gap:12px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
}
.quickjump__label{
  flex:none;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
}
.quickjump__input{
  flex:1 1 auto;
  min-width:0;
  padding:6px 2px;
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
  font-size:16px;
  color:var(--text);
  outline:none;
  transition:border-color 180ms var(--ease);
}
.quickjump__input::placeholder{color:rgba(143,163,196,.65)}
.quickjump__input:focus{border-bottom-color:var(--cyan)}
.quickjump__input:focus-visible{outline:none}
.quickjump__close{
  flex:none;
  padding:6px 11px;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:12px;
  letter-spacing:.06em;
  cursor:pointer;
  transition:border-color 180ms var(--ease),color 180ms var(--ease);
}
.quickjump__close:hover{border-color:rgba(34,224,208,.5);color:var(--text)}
.quickjump__list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1px;
  margin-top:14px;
  background:var(--line);
}
.quickjump__item{background:var(--panel)}
.quickjump__item[hidden]{display:none}
.quickjump__link{
  display:grid;
  grid-template-columns:26px minmax(0,1fr);
  align-items:center;
  gap:10px;
  padding:12px 14px;
  color:var(--text);
  font-size:14px;
  transition:background-color 160ms var(--ease);
}
.quickjump__link:hover{background:rgba(34,224,208,.1)}
.quickjump__link[aria-current="page"] .nav__idx{color:var(--cyan)}
.quickjump__empty{
  margin-top:14px;
  font-size:13px;
  color:var(--muted);
}
.quickjump__empty[hidden]{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:42px;
  padding:0 18px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text);
  font-family:var(--font-body);
  font-size:14px;
  letter-spacing:.04em;
  text-align:center;
  cursor:pointer;
  transition:background-color 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);
}
.btn--solid{
  background:var(--cyan);
  border-color:var(--cyan);
  color:#04161A;
  font-weight:700;
}
.btn--solid:hover{background:#5BF0E4;border-color:#5BF0E4}
.btn--ghost:hover{
  border-color:rgba(34,224,208,.5);
  color:var(--cyan);
  background:rgba(34,224,208,.07);
}
.btn--block{width:100%}

/* ---------- 通用布局 ---------- */
.container{
  width:100%;
  max-width:1240px;
  margin-inline:auto;
  padding-inline:clamp(18px,3vw,40px);
}
.section{padding-block:clamp(56px,7.5vw,116px)}
.section--tight{padding-block:clamp(36px,4.5vw,64px)}

.rule{
  height:1px;
  border:0;
  background:linear-gradient(90deg, var(--line), rgba(22,34,60,0) 92%);
}

.grid{display:grid;gap:clamp(16px,2vw,24px)}
.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(0,1.9fr) minmax(0,1fr)}

/* ---------- 排版 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:currentColor;
  flex:none;
}
.page-title{
  font-family:var(--font-display);
  font-size:clamp(34px,6vw,68px);
  font-weight:700;
  line-height:1.05;
  letter-spacing:-.015em;
  color:var(--text);
}
.section-title{
  font-family:var(--font-display);
  font-size:clamp(24px,3.2vw,36px);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.01em;
  color:var(--text);
}
.prose{
  max-width:var(--measure);
  color:var(--text);
  font-size:16.5px;
  line-height:1.75;
}
.prose p{margin-bottom:1.1em}
.prose p:last-child{margin-bottom:0}
.prose strong{font-weight:600;color:var(--text)}
.prose a{
  color:var(--cyan);
  border-bottom:1px solid rgba(34,224,208,.35);
}
.prose a:hover{border-bottom-color:var(--cyan)}
.prose ul{margin:0 0 1.1em;padding-left:0}
.prose li{
  position:relative;
  padding-left:18px;
  margin-bottom:.5em;
  color:var(--muted);
}
.prose li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:7px;
  height:1px;
  background:var(--cyan);
}

.mono{
  font-family:var(--font-mono);
  letter-spacing:.02em;
  color:var(--text);
}

/* ---------- 状态标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 8px;
  border:1px solid var(--line);
  background:rgba(12,20,38,.7);
  color:var(--muted);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  white-space:nowrap;
}
.tag--cyan{color:var(--cyan);border-color:rgba(34,224,208,.4);background:rgba(34,224,208,.08)}
.tag--orange{color:var(--orange);border-color:rgba(255,138,61,.4);background:rgba(255,138,61,.09)}
.tag--yellow{color:var(--yellow);border-color:rgba(255,209,102,.38);background:rgba(255,209,102,.08)}
.tag--green{color:var(--green);border-color:rgba(31,191,143,.4);background:rgba(31,191,143,.09)}
.tag--blue{color:var(--blue);border-color:rgba(76,125,255,.42);background:rgba(76,125,255,.09)}

.dot{
  display:inline-block;
  width:8px;
  height:8px;
  flex:none;
  border:1px solid rgba(255,255,255,.16);
  background:var(--line);
}
.dot--cyan{background:var(--cyan);border-color:var(--cyan)}
.dot--orange{background:var(--orange);border-color:var(--orange)}
.dot--yellow{background:var(--yellow);border-color:var(--yellow)}
.dot--green{background:var(--green);border-color:var(--green)}
.dot--blue{background:var(--blue);border-color:var(--blue)}

/* ---------- 读数 ---------- */
.stat{display:flex;flex-direction:column;gap:6px}
.stat__value{
  font-family:var(--font-mono);
  font-size:clamp(28px,4vw,44px);
  line-height:1;
  letter-spacing:-.02em;
  color:var(--cyan);
}
.stat__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
}

/* ---------- 卡片 ---------- */
.card{
  position:relative;
  padding:clamp(18px,2.4vw,26px);
  background:linear-gradient(180deg, rgba(12,20,38,.95), rgba(9,15,29,.95));
  border:1px solid var(--line);
  box-shadow:0 1px 0 rgba(255,255,255,.02), 0 18px 40px -34px rgba(0,0,0,.95);
  transition:border-color 200ms var(--ease),transform 200ms var(--ease);
}
.card--hover:hover{
  border-color:rgba(34,224,208,.34);
  transform:translateY(-2px);
}

/* ---------- 抽象图容器 ---------- */
.media-frame{
  position:relative;
  width:100%;
  aspect-ratio:16 / 9;
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(12,20,38,.92), rgba(8,13,26,.96));
}
.media-frame::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:0;
  background-image:
    repeating-linear-gradient(0deg, rgba(124,141,181,.13) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg, rgba(124,141,181,.13) 0 1px, transparent 1px 28px);
  pointer-events:none;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:radial-gradient(82% 62% at 18% 0%, rgba(34,224,208,.16), transparent 70%);
  pointer-events:none;
}
.media-frame > img,
.media-frame > svg,
.media-frame > picture,
.media-frame > picture > img,
.media-frame > canvas{
  position:relative;
  z-index:2;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame--16x9{aspect-ratio:16 / 9}
.media-frame--4x3{aspect-ratio:4 / 3}
.media-frame--3x2{aspect-ratio:3 / 2}
.media-frame--1x1{aspect-ratio:1 / 1}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--muted);
}
.breadcrumb a{color:var(--muted);transition:color 160ms var(--ease)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb__sep{color:rgba(124,141,181,.5)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,110px);
  border-top:1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(12,20,38,.55), rgba(6,11,24,0) 58%),
    var(--ink);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:1px;
  background:linear-gradient(90deg, rgba(34,224,208,0), rgba(34,224,208,.5), rgba(34,224,208,0));
  pointer-events:none;
}
.footer__grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:clamp(24px,4vw,56px);
  padding-block:clamp(48px,7vw,84px);
}
.footer__brand{
  display:flex;
  flex-direction:column;
  gap:16px;
  max-width:36ch;
}
.footer__brandline{display:flex;align-items:center;gap:11px}
.footer__name{
  font-family:var(--font-display);
  font-size:20px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--text);
}
.footer__desc{
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
}
.legend{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:9px 14px;
  margin-top:2px;
}
.legend__item{
  display:flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--muted);
}
.footer__col{min-width:0}
.footer__title{
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer__list{
  display:flex;
  flex-direction:column;
  gap:11px;
}
.footer__list--text{gap:9px}
.footer__link{
  display:inline-block;
  font-size:14px;
  color:var(--muted);
  transition:color 160ms var(--ease);
}
.footer__link:hover{color:var(--cyan)}
.footer__text{
  font-size:13.5px;
  line-height:1.7;
  color:var(--muted);
}
.footer__text .mono{color:var(--text)}
.footer__base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 22px;
  padding-block:20px 30px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--muted);
}
.footer__legal{color:rgba(143,163,196,.82)}

/* ---------- 滚动显现 ---------- */
[data-reveal]{
  transition:opacity 320ms var(--ease),transform 320ms var(--ease);
}
body.is-reveal-ready [data-reveal]:not(.is-visible){
  opacity:0;
  transform:translateY(12px);
}

/* ---------- 平板 ---------- */
@media (max-width:1024px){
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__brand{grid-column:1 / -1}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--aside{grid-template-columns:minmax(0,1fr)}
}

/* ---------- 移动端 ---------- */
@media (max-width:900px){
  :root{--rail-w:0px;--topbar-h:60px}

  body{
    padding-left:0;
    background-attachment:scroll;
    font-size:16px;
  }

  .topbar{left:0}

  .rail{
    width:min(310px,86vw);
    padding:20px 18px 22px;
    transform:translateX(-100%);
    transition:transform 220ms var(--ease);
    box-shadow:30px 0 70px -30px rgba(0,0,0,.95);
  }
  .rail[data-open]{transform:translateX(0)}

  .nav-toggle{display:inline-flex}

  .tool-btn__kbd{display:none}

  .grid--2,
  .grid--3{grid-template-columns:minmax(0,1fr)}

  .quickjump{
    padding:8vh 14px 20px;
    align-items:start;
  }
  .quickjump__list{grid-template-columns:minmax(0,1fr)}

  .page-title{font-size:clamp(30px,8.4vw,46px)}
  .section{padding-block:clamp(48px,10vw,72px)}
}

@media (max-width:640px){
  .status-lamp__text{display:none}
  .status-lamp{padding:6px 9px}
  .tool-btn__text{display:none}
  .tool-btn{padding:0 11px}
  .brand-sub{font-size:9px;letter-spacing:.14em}

  .footer__grid{grid-template-columns:minmax(0,1fr);padding-block:44px}
  .legend{grid-template-columns:minmax(0,1fr)}
  .footer__base{flex-direction:column;align-items:flex-start}
}

@media (max-width:400px){
  .brand-sub{display:none}
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  body.is-reveal-ready [data-reveal]:not(.is-visible){
    opacity:1;
    transform:none;
  }
}