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

:root{
  --ink:#07111F;
  --panel:#0E1B2E;
  --panel-deep:#0B1728;
  --text:#EAF4FF;
  --muted:#9FB3C8;
  --cyan:#19F5C5;
  --violet:#A855F7;
  --violet-text:#C084FC;
  --gold:#F5C76A;
  --blue:#38BDF8;
  --glass:#FFFFFF14;
  --line:rgba(234,244,255,.12);
  --line-cyan:rgba(25,245,197,.28);
  --line-violet:rgba(168,85,247,.34);
  --radius-lg:22px;
  --radius-md:14px;
  --radius-pill:999px;
  --shadow-lg:0 22px 50px rgba(2,7,15,.55);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --w:1200px;
  --w-wide:1360px;
  --gutter:clamp(16px,3vw,32px);
}

body{
  min-height:100vh;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--ink);
  background-image:
    radial-gradient(62vw 42vw at 10% -12%, rgba(25,245,197,.14), transparent 70%),
    radial-gradient(58vw 44vw at 94% 4%, rgba(168,85,247,.18), transparent 72%),
    radial-gradient(76vw 52vw at 50% 118%, rgba(56,189,248,.11), transparent 70%);
  background-attachment:fixed;
  background-repeat:no-repeat;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:repeating-linear-gradient(180deg, rgba(255,255,255,.025) 0 1px, transparent 1px 4px);
  opacity:.8;
}

h1,h2,h3,h4{line-height:1.2;letter-spacing:-.015em;font-weight:800;margin:0 0 .55em}
h1{font-size:clamp(2.3rem,5.2vw,4.1rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}
h3{font-size:clamp(1.15rem,2vw,1.6rem)}
h4{font-size:1.05rem}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--cyan)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
::selection{background:rgba(25,245,197,.32);color:#03121A}
[id]{scroll-margin-top:104px}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.display,.h-glow{text-shadow:0 0 28px rgba(25,245,197,.28)}

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  display:flex;
  justify-content:center;
  padding:14px var(--gutter);
  background:linear-gradient(180deg, rgba(7,17,31,.94), rgba(7,17,31,.62) 62%, rgba(7,17,31,0));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.header-inner{
  width:100%;
  max-width:var(--w-wide);
  display:flex;
  align-items:center;
  gap:12px;
}
.skip-link{
  position:absolute;
  top:-72px;
  left:var(--gutter);
  z-index:200;
  padding:11px 20px;
  border-radius:0 0 12px 12px;
  background:var(--cyan);
  color:#03121A;
  font-weight:700;
  font-size:14px;
  box-shadow:0 0 24px rgba(25,245,197,.6);
  transition:top .18s ease;
}
.skip-link:focus{top:0;color:#03121A}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 16px 8px 9px;
  border-radius:var(--radius-pill);
  background:rgba(14,27,46,.82);
  border:1px solid var(--line-cyan);
  box-shadow:0 10px 30px rgba(2,7,15,.45), inset 0 1px 0 rgba(255,255,255,.07);
  color:var(--text);
  flex:0 0 auto;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.brand:hover{border-color:rgba(25,245,197,.7);box-shadow:0 10px 34px rgba(25,245,197,.28)}
.brand-mark{
  display:grid;
  grid-template-columns:1fr 1fr;
  grid-template-rows:1fr 1fr;
  gap:3px;
  width:32px;
  height:32px;
  padding:7px;
  border-radius:10px;
  background:linear-gradient(140deg, rgba(25,245,197,.95), rgba(168,85,247,.9));
  box-shadow:0 0 18px rgba(25,245,197,.42), inset 0 0 0 1px rgba(255,255,255,.25);
}
.brand-mark span{background:var(--ink);border-radius:2px;display:block}
.brand-mark span:nth-child(2){opacity:.72}
.brand-mark span:nth-child(3){opacity:.72}
.brand-name{font-size:15.5px;font-weight:800;letter-spacing:.06em;white-space:nowrap}
.brand-badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  flex:0 0 auto;
  padding:5px 11px;
  border-radius:6px;
  border:1px solid rgba(245,199,106,.48);
  background:rgba(245,199,106,.09);
  color:var(--gold);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.16em;
  white-space:nowrap;
}
.brand-badge::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 9px var(--gold);
}

.site-nav{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:6px;
  padding:6px;
  border-radius:var(--radius-pill);
  background:rgba(14,27,46,.8);
  border:1px solid var(--line);
  box-shadow:0 12px 34px rgba(2,7,15,.45), inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  display:inline-block;
  padding:9px 13px;
  border-radius:var(--radius-pill);
  color:var(--muted);
  font-size:14.5px;
  font-weight:500;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:color .18s ease, background-color .18s ease, box-shadow .18s ease;
}
.nav-link:hover{color:var(--text);background:rgba(25,245,197,.1)}
.nav-link[aria-current="page"]{
  color:#03121A;
  font-weight:700;
  background:linear-gradient(120deg, var(--cyan), #74FFE2);
  box-shadow:0 0 0 1px rgba(25,245,197,.65), 0 0 22px rgba(25,245,197,.45);
}
.nav-link[aria-current="page"]:hover{color:#03121A}
.header-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 18px;
  border-radius:var(--radius-pill);
  background:linear-gradient(120deg, var(--violet), var(--blue));
  color:#061020;
  font-size:14px;
  font-weight:800;
  letter-spacing:.02em;
  white-space:nowrap;
  box-shadow:0 0 20px rgba(168,85,247,.42);
  transition:filter .18s ease, transform .18s ease, box-shadow .18s ease;
}
.header-cta::after{content:"→";font-family:var(--font-mono);font-size:13px}
.header-cta:hover{color:#061020;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 26px rgba(168,85,247,.6)}

.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  margin-left:auto;
  padding:0;
  border-radius:14px;
  background:rgba(14,27,46,.9);
  border:1px solid var(--line-cyan);
  color:var(--text);
  cursor:pointer;
  flex:0 0 auto;
  box-shadow:0 10px 26px rgba(2,7,15,.45);
}
.nav-toggle-bars{display:flex;flex-direction:column;gap:5px}
.nav-toggle-bars span{
  display:block;
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--cyan);
  box-shadow:0 0 8px rgba(25,245,197,.75);
  transition:transform .22s ease, opacity .18s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ Footer ============ */
.site-footer{
  position:relative;
  margin-top:clamp(64px,9vw,120px);
  padding:clamp(36px,6vw,64px) var(--gutter) 26px;
  border-top:1px solid var(--line-cyan);
  background:
    radial-gradient(72% 100% at 50% 0%, rgba(25,245,197,.09), transparent 72%),
    linear-gradient(180deg, #0A1626 0%, #060F1B 62%, #050A13 100%);
  z-index:2;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-2px;
  left:0;
  right:0;
  height:2px;
  background:linear-gradient(90deg, transparent, var(--cyan) 22%, var(--violet) 78%, transparent);
  opacity:.75;
}
.footer-inner{max-width:var(--w-wide);margin:0 auto}
.footer-top{
  display:grid;
  grid-template-columns:minmax(230px,.95fr) 2.5fr;
  gap:clamp(24px,4vw,56px);
}
.footer-brand-line{
  font-size:clamp(1.3rem,2.2vw,1.7rem);
  font-weight:800;
  letter-spacing:.08em;
  margin:0;
  color:var(--text);
  text-shadow:0 0 24px rgba(25,245,197,.35);
}
.footer-tagline{
  margin:12px 0 18px;
  max-width:32ch;
  font-size:14.5px;
  color:var(--muted);
}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--muted);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
}
.chip-gold{color:var(--gold);border-color:rgba(245,199,106,.45);background:rgba(245,199,106,.09)}
.chip-cyan{color:var(--cyan);border-color:var(--line-cyan);background:rgba(25,245,197,.09)}
.chip-violet{color:var(--violet-text);border-color:var(--line-violet);background:rgba(168,85,247,.11)}

.footer-cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(18px,3vw,32px);
}
.footer-col-title{
  margin:0 0 12px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.24em;
  color:var(--violet-text);
  text-transform:uppercase;
}
.footer-list{display:flex;flex-direction:column;gap:2px}
.footer-link{
  display:inline-block;
  padding:5px 0;
  color:var(--text);
  font-size:14.5px;
  border-bottom:1px solid transparent;
  transition:color .18s ease, border-color .18s ease;
}
.footer-link:hover{color:var(--cyan);border-bottom-color:rgba(25,245,197,.6)}
.footer-contact-list{gap:6px}
.footer-contact-item{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  font-size:13.5px;
  line-height:1.5;
  padding:3px 0;
}
.footer-key{
  flex:0 0 3.4em;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.12em;
  color:var(--muted);
  padding-top:2px;
}
.footer-val{color:var(--text);word-break:break-word}
.footer-meta{
  margin-top:clamp(26px,4vw,44px);
  padding-top:20px;
  border-top:1px solid rgba(234,244,255,.1);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
}
.footer-icp{
  margin:0;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--muted);
}
.footer-legal{display:flex;flex-wrap:wrap;gap:18px}
.footer-legal-link{
  font-size:12.5px;
  color:var(--muted);
  border-bottom:1px solid transparent;
  transition:color .18s ease, border-color .18s ease;
}
.footer-legal-link:hover{color:var(--cyan);border-bottom-color:rgba(25,245,197,.6)}

/* ============ Layout utilities ============ */
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 var(--gutter)}
.container-wide{max-width:var(--w-wide)}
.section{padding:clamp(48px,7vw,96px) 0}
.section-alt{
  padding:clamp(48px,7vw,96px) 0;
  background:linear-gradient(180deg, rgba(14,27,46,.55), rgba(11,23,40,.2));
  border-top:1px solid rgba(234,244,255,.07);
  border-bottom:1px solid rgba(234,244,255,.07);
}
.prose{max-width:72ch;color:#D6E6F6}
.prose p{margin:0 0 1.1em}
.prose ul,.prose ol{list-style:disc;padding-left:1.25em;margin:0 0 1.1em}
.prose ol{list-style:decimal}
.prose li{margin:0 0 .4em}
.prose h2,.prose h3{margin-top:1.6em}

/* ============ Text & labels ============ */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:linear-gradient(90deg, var(--cyan), transparent);
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:6px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  border:1px solid var(--line);
  color:var(--muted);
  background:rgba(255,255,255,.04);
}
.tag-cyan{color:var(--cyan);border-color:var(--line-cyan);background:rgba(25,245,197,.09)}
.tag-violet{color:var(--violet-text);border-color:var(--line-violet);background:rgba(168,85,247,.12)}
.tag-gold{color:var(--gold);border-color:rgba(245,199,106,.45);background:rgba(245,199,106,.09)}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:13px 24px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, filter .18s ease, border-color .18s ease;
}
.btn-primary{
  background:linear-gradient(120deg, var(--cyan), #63FFDF 58%, var(--blue));
  color:#03121A;
  box-shadow:0 0 26px rgba(25,245,197,.4);
}
.btn-primary:hover{color:#03121A;filter:brightness(1.07);transform:translateY(-1px);box-shadow:0 0 32px rgba(25,245,197,.58)}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border-color:var(--line-violet);
  color:var(--text);
}
.btn-ghost:hover{color:var(--cyan);border-color:var(--line-cyan);box-shadow:0 0 22px rgba(25,245,197,.25)}

/* ============ Breadcrumb ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-bottom:24px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--muted);
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(159,179,200,.45)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--text)}

/* ============ Panels ============ */
.panel{
  position:relative;
  padding:clamp(20px,3vw,30px);
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg, rgba(14,27,46,.95), rgba(11,23,40,.92));
  border:1px solid var(--line);
  box-shadow:var(--shadow-lg);
  overflow:hidden;
}
.panel::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(180deg, rgba(255,255,255,.07), transparent 42%);
  opacity:.55;
}
.panel > *{position:relative;z-index:1}
.panel-glass{
  background:rgba(14,27,46,.55);
  border-color:var(--line-cyan);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.panel-head{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:16px;
  padding-bottom:14px;
  border-bottom:1px solid rgba(234,244,255,.1);
}
.panel-title{
  margin:0;
  font-size:clamp(1.05rem,1.8vw,1.3rem);
  font-weight:800;
  letter-spacing:.01em;
}
.panel-body{color:#D6E6F6;font-size:15px}

/* ============ Step rail ============ */
.step-rail{
  position:relative;
  padding:0 0 0 28px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.step-rail::before{
  content:"";
  position:absolute;
  left:7px;
  top:8px;
  bottom:8px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg, var(--cyan), var(--violet));
  opacity:.55;
}
.step-node{position:relative}
.step-node::before{
  content:"";
  position:absolute;
  left:-28px;
  top:7px;
  width:12px;
  height:12px;
  border-radius:50%;
  background:var(--ink);
  border:2px solid var(--cyan);
  box-shadow:0 0 12px rgba(25,245,197,.7);
}
.step-node[data-state="done"]::before{background:var(--cyan)}
.step-node[data-state="done"]{opacity:.86}
.step-num{
  display:block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--cyan);
  margin-bottom:4px;
}

/* ============ TOC ============ */
.toc{
  position:sticky;
  top:104px;
  display:flex;
  flex-direction:column;
  gap:2px;
  padding-left:14px;
  border-left:1px solid rgba(234,244,255,.14);
}
.toc-link{
  padding:7px 0;
  font-size:13.5px;
  color:var(--muted);
  transition:color .18s ease, text-shadow .18s ease;
}
.toc-link:hover{color:var(--text)}
.toc-link.is-active{
  color:var(--cyan);
  font-weight:700;
  text-shadow:0 0 14px rgba(25,245,197,.55);
}
.is-active{scroll-margin-top:104px}

/* ============ Media ============ */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16/10;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line-cyan);
  background:
    linear-gradient(135deg, rgba(25,245,197,.18), rgba(168,85,247,.22)),
    repeating-linear-gradient(180deg, rgba(255,255,255,.05) 0 2px, transparent 2px 6px),
    var(--panel-deep);
  box-shadow:0 18px 44px rgba(2,7,15,.45);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame[data-ratio="wide"]{aspect-ratio:21/9}
.media-frame[data-ratio="square"]{aspect-ratio:1/1}
.media-frame[data-ratio="tall"]{aspect-ratio:3/4}
.media-caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--muted);
}
.media-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:clamp(14px,2vw,22px);
}
.scanline{
  position:absolute;
  inset:0;
  pointer-events:none;
  background:repeating-linear-gradient(180deg, rgba(25,245,197,.12) 0 1px, transparent 1px 5px);
  mix-blend-mode:screen;
  opacity:.6;
}

/* ============ Scroll progress & back to top ============ */
.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  z-index:120;
  width:0;
  height:3px;
  background:linear-gradient(90deg, var(--cyan), var(--violet));
  box-shadow:0 0 14px rgba(25,245,197,.7);
  transition:width .1s linear;
  pointer-events:none;
}
.to-top{
  position:fixed;
  right:var(--gutter);
  bottom:clamp(16px,3vw,28px);
  z-index:80;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:48px;
  height:48px;
  padding:0;
  border-radius:50%;
  border:1px solid var(--line-cyan);
  background:rgba(14,27,46,.92);
  color:var(--cyan);
  font-size:18px;
  cursor:pointer;
  opacity:0;
  transform:translateY(12px);
  pointer-events:none;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:opacity .24s ease, transform .24s ease, border-color .2s ease;
}
.to-top.is-visible{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{border-color:rgba(25,245,197,.85);box-shadow:0 0 22px rgba(25,245,197,.42)}

/* ============ Reveal ============ */
html.reveal-ready [data-reveal]{
  opacity:0;
  transform:translateY(16px);
}
html.reveal-ready [data-reveal].is-in{
  opacity:1;
  transform:none;
  transition:opacity .6s ease, transform .6s ease;
}

/* ============ Responsive ============ */
@media (max-width:1040px){
  .nav-toggle{display:inline-flex}
  .brand-badge{display:none}
  .site-nav{
    position:fixed;
    left:12px;
    right:12px;
    bottom:calc(12px + env(safe-area-inset-bottom,0px));
    z-index:95;
    margin-left:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:12px;
    border-radius:var(--radius-lg);
    max-height:72vh;
    overflow-y:auto;
    transform:translateY(calc(100% + 32px));
    opacity:0;
    pointer-events:none;
    transition:transform .28s ease, opacity .2s ease;
    box-shadow:0 24px 60px rgba(2,7,15,.72), 0 0 0 1px rgba(25,245,197,.18);
  }
  .site-nav[data-open="true"]{
    transform:none;
    opacity:1;
    pointer-events:auto;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:13px 16px;border-radius:var(--radius-md);font-size:16px}
  .header-cta{justify-content:center;margin-top:6px;padding:14px 16px}
  .toc{position:static;top:auto}
  .to-top{bottom:calc(84px + env(safe-area-inset-bottom,0px))}
}

@media (max-width:980px){
  .footer-top{grid-template-columns:1fr}
  .footer-brand-line{font-size:1.45rem}
}

@media (max-width:720px){
  body{font-size:15.5px;background-attachment:scroll}
  .site-header{padding:10px 14px}
  .brand{padding:7px 13px 7px 8px}
  .brand-name{font-size:14.5px}
  .footer-cols{grid-template-columns:1fr 1fr}
  .footer-col:last-child{grid-column:1 / -1}
  .footer-meta{flex-direction:column;align-items:flex-start}
}

@media (max-width:480px){
  .footer-cols{grid-template-columns:1fr}
  .footer-col:last-child{grid-column:auto}
  .brand-name{letter-spacing:.03em}
  .media-grid{grid-template-columns:1fr}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html{scroll-behavior:auto}
  html.reveal-ready [data-reveal]{opacity:1 !important;transform:none !important}
  .to-top{transition:none}
  body::after{opacity:.5}
}