:root{
  --font-head:"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --ink:#061029;
  --ink-deep:#030A1B;
  --panel:#0E2A4F;
  --panel-2:#123566;
  --cyan:#22E0D0;
  --ice:#A8F5EE;
  --orange:#FF8A1F;
  --red:#E4342F;
  --yellow:#FFD23F;
  --mist:#F4F8FB;
  --graphite:#2A3542;
  --violet:#6C5CE7;

  --text:rgba(244,248,251,.86);
  --text-dim:rgba(244,248,251,.58);
  --line:rgba(168,245,238,.14);
  --line-strong:rgba(168,245,238,.32);

  --r-a:22px 6px 22px 6px;
  --r-b:6px 22px 6px 22px;
  --r-card:16px 16px 5px 16px;
  --r-pill:999px;

  --shell:1240px;
  --gutter:clamp(16px,4vw,40px);
  --header-h:64px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd,fieldset{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:800;letter-spacing:-.02em;line-height:1.18;color:var(--mist)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg{display:block;max-width:100%}
img{height:auto}
table{border-collapse:collapse;width:100%}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
::selection{background:rgba(34,224,208,.32);color:var(--mist)}

body{
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(900px 620px at 12% -10%, rgba(34,224,208,.16), transparent 62%),
    radial-gradient(760px 520px at 96% 4%, rgba(108,92,231,.17), transparent 60%),
    radial-gradient(720px 500px at 46% 116%, rgba(255,138,31,.10), transparent 62%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  color:var(--text);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  overflow-x:hidden;
}

/* ---------- 布局容器 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(34px,5.2vw,72px)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px 26px;margin-bottom:clamp(18px,2.6vw,32px)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-num);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan)}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;opacity:.75}
.divider{height:1px;border:0;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 跳转与进度 ---------- */
.skip-link{
  position:fixed;left:14px;top:-70px;z-index:140;
  padding:11px 18px;border-radius:0 0 14px 14px;
  background:var(--cyan);color:#02121F;font-family:var(--font-head);font-weight:800;font-size:14px;
  transition:top .16s ease;
}
.skip-link:focus{top:0}
.scroll-progress{
  position:fixed;left:0;top:0;width:100%;height:2px;z-index:130;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--violet) 55%,var(--orange));
  pointer-events:none;will-change:transform;
}

/* ---------- 品牌 ---------- */
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.brand__mark{
  width:38px;height:38px;flex:0 0 auto;display:grid;place-items:center;
  border-radius:13px 4px 13px 4px;color:#04121F;
  background:linear-gradient(140deg,var(--cyan) 8%,var(--ice) 46%,var(--violet) 108%);
  box-shadow:0 10px 26px -16px rgba(34,224,208,.95);
}
.brand__text{display:grid;gap:1px;min-width:0}
.brand__name{font-family:var(--font-head);font-weight:900;font-size:19px;line-height:1.12;letter-spacing:-.01em;color:var(--mist)}
.brand__domain{font-family:var(--font-num);font-size:10.5px;letter-spacing:.09em;color:var(--cyan);line-height:1.2}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:linear-gradient(180deg, rgba(6,16,41,.97) 0%, rgba(6,16,41,.86) 100%);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header[data-condensed="true"]{box-shadow:0 18px 40px -30px rgba(0,0,0,.95)}
.header-bar{
  display:flex;align-items:center;gap:clamp(10px,1.8vw,24px);
  min-height:var(--header-h);padding-block:9px;
  transition:padding .2s ease;
}
.site-header[data-condensed="true"] .header-bar{padding-block:6px}

.primary-nav{display:flex;align-items:center;margin-inline:auto;min-width:0}
.nav-list{display:flex;align-items:center}
.nav-list > li{position:relative}
.nav-list > li + li::before{
  content:"";position:absolute;left:0;top:50%;width:1px;height:13px;
  background:var(--line-strong);transform:translateY(-50%);
}
.nav-link{
  position:relative;display:block;padding:9px 14px;
  font-family:var(--font-head);font-size:14px;font-weight:500;
  color:rgba(244,248,251,.76);white-space:nowrap;
  transition:color .14s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--cyan);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--mist)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--cyan);font-weight:700}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.header-commands{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.cmd-link{
  display:inline-block;padding:6px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);color:var(--ice);
  font-family:var(--font-num);font-size:12.5px;letter-spacing:.04em;white-space:nowrap;
  transition:border-color .14s ease,color .14s ease,background .14s ease;
}
.cmd-link:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(34,224,208,.09)}
.cmd-link--hot{border-color:rgba(255,138,31,.5);color:var(--orange)}
.cmd-link--hot:hover{border-color:var(--orange);color:var(--orange);background:rgba(255,138,31,.1)}

.header-cta{flex:0 0 auto}
.nav-toggle{
  display:none;align-items:center;gap:9px;flex:0 0 auto;
  padding:8px 14px;border:1px solid var(--line-strong);border-radius:var(--r-pill);
  font-family:var(--font-num);font-size:12.5px;letter-spacing:.08em;color:var(--ice);
  transition:border-color .14s ease,color .14s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars i{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .18s ease,opacity .18s 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)}

.status-strip{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px 24px;
  padding-block:8px;border-top:1px solid var(--line);
  max-height:52px;overflow:hidden;
  font-family:var(--font-num);font-size:11.5px;letter-spacing:.05em;color:var(--text-dim);
  transition:max-height .24s ease,padding .24s ease,opacity .18s ease;
}
.site-header[data-condensed="true"] .status-strip{max-height:0;padding-block:0;opacity:0;border-top-color:transparent}
.status-strip__item{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.status-strip__item strong{color:var(--ice);font-weight:600}
.status-dot{
  width:7px;height:7px;border-radius:50%;background:var(--cyan);flex:0 0 auto;
  animation:statusPulse 1.9s ease-out infinite;
}
@keyframes statusPulse{
  0%{box-shadow:0 0 0 0 rgba(34,224,208,.55)}
  70%{box-shadow:0 0 0 7px rgba(34,224,208,0)}
  100%{box-shadow:0 0 0 0 rgba(34,224,208,0)}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border:1px solid transparent;border-radius:var(--r-pill);
  font-family:var(--font-head);font-size:14px;font-weight:700;letter-spacing:.01em;
  white-space:nowrap;cursor:pointer;
  transition:transform .12s ease,box-shadow .16s ease,background .16s ease,border-color .16s ease,color .16s ease;
}
.btn--primary{background:linear-gradient(120deg,var(--cyan) 0%,#1AC2EA 100%);color:#02121F;box-shadow:0 12px 30px -16px rgba(34,224,208,.95)}
.btn--primary:hover{transform:translateY(-1px);box-shadow:0 18px 36px -16px rgba(34,224,208,1)}
.btn--amber{background:var(--orange);color:#1B0C00;box-shadow:0 12px 30px -18px rgba(255,138,31,.95)}
.btn--amber:hover{transform:translateY(-1px)}
.btn--ghost{border-color:var(--line-strong);color:var(--ice);background:rgba(168,245,238,.04)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(34,224,208,.1)}
.btn--sm{padding:8px 15px;font-size:13px}

/* ---------- 面板 / 卡片 ---------- */
.panel{
  position:relative;overflow:hidden;
  padding:clamp(18px,2.6vw,32px);
  border:1px solid var(--line);border-radius:var(--r-a);
  background:linear-gradient(150deg, rgba(14,42,79,.92) 0%, rgba(6,16,41,.88) 100%);
}
.panel--tinted{background:linear-gradient(140deg, rgba(34,224,208,.13) 0%, rgba(108,92,231,.12) 46%, rgba(6,16,41,.9) 100%)}
.card{
  position:relative;display:block;overflow:hidden;height:100%;
  padding:clamp(18px,2.4vw,28px);
  border:1px solid var(--line);border-radius:var(--r-card);
  background:linear-gradient(150deg, rgba(14,42,79,.88) 0%, rgba(6,16,41,.86) 100%);
  transition:transform .14s ease,border-color .14s ease,box-shadow .18s ease;
}
.card:hover,.card:focus-visible{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:0 26px 50px -34px rgba(34,224,208,.85)}

/* ---------- 数字与标签 ---------- */
.metric{display:grid;gap:3px}
.metric__value{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:800;
  font-size:clamp(32px,4.2vw,54px);line-height:1;letter-spacing:-.03em;color:var(--mist);
}
.metric__value--cyan{color:var(--cyan)}
.metric__value--orange{color:var(--orange)}
.metric__value--hero{font-size:clamp(56px,9vw,116px)}
.metric__label{font-size:13px;letter-spacing:.02em;color:var(--text-dim)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border:1px solid currentColor;border-radius:var(--r-pill);
  font-family:var(--font-num);font-size:11.5px;letter-spacing:.06em;line-height:1.6;
}
.tag--cyan{color:var(--cyan);background:rgba(34,224,208,.1)}
.tag--red{color:var(--red);background:rgba(228,52,47,.14)}
.tag--yellow{color:var(--yellow);background:rgba(255,210,63,.12)}
.tag--orange{color:var(--orange);background:rgba(255,138,31,.12)}
.tag--violet{color:#A99BFF;background:rgba(108,92,231,.18)}

.dataline{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 2px;border-bottom:1px dashed rgba(168,245,238,.14);font-size:14.5px}
.dataline:last-child{border-bottom:0}
.dataline__num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:700;color:var(--cyan)}

/* ---------- 图片容器 ---------- */
.frame{
  position:relative;display:block;width:100%;overflow:hidden;isolation:isolate;
  aspect-ratio:16/9;border:1px solid var(--line);border-radius:var(--r-a);
  background:linear-gradient(135deg, rgba(34,224,208,.14) 0%, rgba(108,92,231,.18) 52%, rgba(6,16,41,.92) 100%);
}
.frame img{width:100%;height:100%;object-fit:cover}
.frame--wide{aspect-ratio:21/9}
.frame--square{aspect-ratio:1/1}
.frame--tall{aspect-ratio:3/4}
.frame--card{aspect-ratio:4/3}
.frame--grid::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(168,245,238,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(168,245,238,.08) 1px,transparent 1px);
  background-size:36px 36px;
}
.frame__caption{
  position:absolute;left:0;right:0;bottom:0;padding:10px 14px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.04em;color:var(--ice);
  background:linear-gradient(0deg, rgba(6,16,41,.94), rgba(6,16,41,0));
}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-num);font-size:12.5px;letter-spacing:.03em;color:var(--text-dim)}
.breadcrumb > li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb > li + li::before{content:"/";color:rgba(168,245,238,.32)}
.breadcrumb a{transition:color .14s ease}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--mist)}

/* ---------- 正文 ---------- */
.prose{max-width:74ch;font-size:17px;line-height:1.8;color:var(--text)}
.prose > * + *{margin-top:1.05em}
.prose h2{font-size:clamp(24px,3vw,32px);margin-top:1.9em}
.prose h3{font-size:clamp(19px,2.2vw,23px);margin-top:1.6em}
.prose ul{display:grid;gap:.5em;padding-left:1.15em}
.prose ul > li{position:relative}
.prose ul > li::before{content:"";position:absolute;left:-1.15em;top:.66em;width:7px;height:7px;border-radius:2px;background:var(--cyan)}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(34,224,208,.36)}
.prose a:hover{border-bottom-color:var(--cyan)}

/* ---------- 栅格 ---------- */
.grid{display:grid;gap:clamp(16px,2.1vw,26px)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(258px,1fr))}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.span-4{grid-column:span 4}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}

/* ---------- 章节目录 ---------- */
.toc{position:sticky;top:calc(var(--header-h) + 22px)}
.toc__title{font-family:var(--font-num);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--text-dim);margin-bottom:12px}
.toc__list{display:grid;gap:2px}
.toc__link{
  display:block;padding:8px 12px;border-left:2px solid var(--line);
  font-size:13.5px;color:var(--text-dim);
  transition:color .14s ease,border-color .14s ease,background .14s ease;
}
.toc__link:hover{color:var(--mist);border-left-color:var(--line-strong)}
.toc__link[aria-current="true"]{color:var(--cyan);border-left-color:var(--cyan);background:rgba(34,224,208,.07)}

/* ---------- 折叠面板 ---------- */
.accordion{border-top:1px solid var(--line)}
.accordion__item{border-bottom:1px solid var(--line)}
.accordion__trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 4px;text-align:left;
  font-family:var(--font-head);font-weight:700;font-size:clamp(16px,1.6vw,19px);color:var(--mist);
  transition:color .14s ease;
}
.accordion__trigger:hover{color:var(--cyan)}
.accordion__icon{position:relative;width:20px;height:20px;flex:0 0 auto}
.accordion__icon::before,.accordion__icon::after{
  content:"";position:absolute;left:50%;top:50%;width:14px;height:2px;border-radius:2px;
  background:var(--cyan);transform:translate(-50%,-50%);transition:transform .2s ease;
}
.accordion__icon::after{transform:translate(-50%,-50%) rotate(90deg)}
.accordion__item[data-open="true"] .accordion__icon::after{transform:translate(-50%,-50%) rotate(0deg)}
.accordion__panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .26s ease}
.accordion__item[data-open="true"] .accordion__panel{grid-template-rows:1fr}
.accordion__body{overflow:hidden}
.accordion__body > *:first-child{margin-top:0}
.accordion__body > *:last-child{margin-bottom:20px}

/* ---------- 标签页 ---------- */
.tabs__list{display:flex;flex-wrap:wrap;gap:8px;padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:20px}
.tab{
  padding:8px 15px;border:1px solid var(--line);border-radius:var(--r-pill);
  font-family:var(--font-num);font-size:13px;letter-spacing:.04em;color:var(--text-dim);
  transition:color .14s ease,border-color .14s ease,background .14s ease;
}
.tab:hover{color:var(--mist);border-color:var(--line-strong)}
.tab[aria-selected="true"]{color:#02121F;background:var(--cyan);border-color:var(--cyan);font-weight:700}
.tab__panel[hidden]{display:none}

/* ---------- 横向卡带 ---------- */
.rail{display:flex;gap:14px;overflow-x:auto;padding-bottom:14px;scroll-snap-type:x mandatory}
.rail > *{flex:0 0 clamp(238px,26vw,304px);scroll-snap-align:start}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-track{background:rgba(168,245,238,.07);border-radius:99px}
.rail::-webkit-scrollbar-thumb{background:var(--graphite);border-radius:99px}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:clamp(14px,3vw,32px);bottom:clamp(14px,3vw,32px);z-index:100;
  width:46px;height:46px;display:grid;place-items:center;
  border:1px solid var(--line-strong);border-radius:15px 5px 15px 5px;
  background:var(--panel);color:var(--cyan);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,border-color .14s ease;
}
.to-top[data-visible="true"]{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--cyan);background:var(--panel-2)}

/* ---------- 进场 ---------- */
html.has-js .reveal{opacity:0;transform:translateY(16px);transition:opacity .34s ease,transform .34s ease}
html.has-js .reveal.is-in{opacity:1;transform:none}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(56px,8vw,112px);
  padding-top:clamp(34px,5vw,58px);
  border-top:1px solid var(--line);
  background:
    radial-gradient(720px 340px at 88% 0%, rgba(34,224,208,.1), transparent 62%),
    linear-gradient(180deg, rgba(6,16,41,.6) 0%, var(--ink-deep) 100%);
}
.footer-top{display:grid;grid-template-columns:minmax(220px,1.05fr) minmax(0,3fr);gap:clamp(24px,4vw,56px)}
.footer-brand{display:grid;gap:12px;align-content:start}
.brand--footer .brand__name{font-size:20px}
.footer-brand__note{font-size:14px;color:var(--text-dim);max-width:26ch}
.footer-brand__stat{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);font-size:12px;letter-spacing:.04em;color:var(--ice)}
.footer-cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(18px,2.4vw,32px)}
.footer-col__title{font-family:var(--font-num);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);margin-bottom:13px}
.footer-col__list{display:grid;gap:9px}
.footer-col__list a{display:inline-block;font-size:14px;color:var(--text-dim);transition:color .14s ease,transform .14s ease}
.footer-col__list a:hover{color:var(--cyan);transform:translateX(3px)}

.footer-contact{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px 30px;
  margin-top:clamp(28px,4vw,50px);padding:clamp(18px,2.6vw,28px);
  border:1px solid var(--line);border-radius:var(--r-a);
  background:linear-gradient(120deg, rgba(14,42,79,.78) 0%, rgba(6,16,41,.42) 100%);
}
.contact-item{display:grid;gap:5px;min-width:0}
.contact-item__label{font-family:var(--font-num);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-dim)}
.contact-item__value{font-size:14.5px;line-height:1.65;color:var(--mist);word-break:break-word}
.contact-item__value--num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:700;color:var(--cyan);letter-spacing:.01em}

.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;
  margin-top:clamp(24px,3vw,38px);padding:18px 0 28px;
  border-top:1px solid var(--line);
  font-family:var(--font-num);font-size:12.5px;letter-spacing:.05em;color:var(--text-dim);
}
.footer-base__sign{color:var(--ice)}
.footer-base__legal{color:var(--text-dim)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .header-commands{display:none}
}
@media (max-width:1080px){
  .footer-top{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .primary-nav{
    position:absolute;left:var(--gutter);right:var(--gutter);top:100%;
    display:none;z-index:95;margin-inline:0;
    padding:14px;max-height:min(72vh,520px);overflow-y:auto;
    border:1px solid var(--line-strong);border-radius:var(--r-a);
    background:linear-gradient(160deg, var(--panel) 0%, var(--ink) 100%);
    box-shadow:0 32px 60px -34px rgba(0,0,0,.95);
  }
  .primary-nav[data-open="true"]{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-list > li + li::before{display:none}
  .nav-link{padding:12px 14px;font-size:16px;border-radius:12px}
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{background:rgba(34,224,208,.11)}
  .span-4,.span-6,.span-7,.span-8{grid-column:span 12}
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .toc{position:static}
}
@media (max-width:760px){
  body{background-attachment:scroll;font-size:16.5px}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
}
@media (max-width:560px){
  .header-cta{display:none}
  .brand__domain{display:none}
  .brand__mark{width:34px;height:34px}
  .footer-cols{grid-template-columns:1fr}
  .footer-base{font-size:12px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html.has-js .reveal{opacity:1;transform:none;transition:none}
  .status-dot{animation:none;box-shadow:0 0 0 3px rgba(34,224,208,.28)}
}