:root{
  --ink:#07080C;
  --panel:#101218;
  --line:#1D2028;
  --gold-dim:#A87A18;
  --gold:#FFC94A;
  --teal-dim:#1B6E68;
  --teal:#4FE0D0;
  --rose:#FF5C8A;
  --text:#F2F4F8;
  --muted:#A8B0BE;
  --paper:#E9EDF5;
  --font-display:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Noto Sans Mono CJK SC",monospace;
  --wrap:1180px;
  --gutter:clamp(18px,4vw,40px);
  --gap:clamp(16px,3vw,32px);
  --sec-space:clamp(64px,9vw,132px);
  --radius-a:20px 6px 20px 6px;
  --radius-b:6px 20px 6px 20px;
  --radius-c:14px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(900px 620px at 10% -10%,rgba(79,224,208,.10),transparent 62%),
    radial-gradient(780px 560px at 94% 6%,rgba(255,201,74,.09),transparent 60%),
    radial-gradient(700px 540px at 58% 112%,rgba(255,92,138,.05),transparent 66%);
}
header,main,footer{position:relative;z-index:1}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.18;
  letter-spacing:.02em;
  margin:0 0 .6em;
  color:var(--text);
}
h1{font-size:clamp(40px,7.4vw,88px)}
h2{font-size:clamp(28px,4.4vw,44px)}
h3{font-size:clamp(21px,2.9vw,32px)}
h4{font-size:clamp(18px,2.2vw,24px)}
p{margin:0 0 1.1em;max-width:40em}
a{color:var(--teal);text-decoration:none}
a:hover{color:var(--gold)}
ul,ol{margin:0 0 1.1em;padding-left:1.15em}
img{max-width:100%;height:auto}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px}

.mono{font-family:var(--font-mono);letter-spacing:.08em;font-size:.92em}
.eyebrow{
  display:block;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--gold-dim);
  margin:0 0 10px;
}
.lede{font-size:clamp(17px,2.1vw,22px);line-height:1.78;max-width:34em;color:var(--text)}
.muted{color:var(--muted)}
.muted *{color:inherit}

.wrap{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section-block{padding-block:var(--sec-space);position:relative}
.section-block--tight{padding-block:clamp(36px,5vw,72px)}

.section-marker{
  display:flex;
  align-items:center;
  gap:16px;
  margin:0 0 clamp(20px,3vw,34px);
  font-family:var(--font-mono);
  font-size:clamp(20px,2.9vw,34px);
  font-weight:700;
  letter-spacing:.14em;
  color:var(--gold-dim);
  transition:color .3s ease,text-shadow .3s ease;
}
.section-marker::after{
  content:"";
  flex:1 1 auto;
  height:1px;
  min-width:40px;
  background:linear-gradient(90deg,var(--gold-dim),rgba(168,122,24,0));
  transition:background .3s ease;
}
[data-section].is-current .section-marker{
  color:var(--gold);
  text-shadow:0 0 18px rgba(255,201,74,.42);
}
[data-section].is-current .section-marker::after{
  background:linear-gradient(90deg,var(--gold),rgba(79,224,208,.35) 55%,rgba(79,224,208,0));
}
.divider-glow{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,rgba(0,0,0,0),var(--gold-dim),var(--teal-dim),rgba(0,0,0,0));
}

.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 24px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.14em;
  line-height:1.3;
  color:var(--text);
  background:transparent;
  border:1px solid var(--line);
  border-radius:999px 6px 999px 6px;
  text-decoration:none;
  overflow:hidden;
  cursor:pointer;
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.btn::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.22),rgba(255,255,255,0));
  transform:translateX(-120%);
  transition:transform .55s ease;
  pointer-events:none;
}
.btn:hover::after,.btn:focus-visible::after{transform:translateX(120%)}
.btn--gold{border-color:var(--gold-dim);color:var(--gold)}
.btn--gold:hover{background:rgba(255,201,74,.10);border-color:var(--gold);color:var(--gold)}
.btn--teal{border-color:var(--teal-dim);color:var(--teal)}
.btn--teal:hover{background:rgba(79,224,208,.10);border-color:var(--teal);color:var(--teal)}

.panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-a);
  padding:clamp(20px,3vw,34px);
  transition:border-color .18s ease;
}
.panel:hover{border-color:var(--gold-dim)}

.data-card{
  position:relative;
  overflow:hidden;
  padding:clamp(18px,2.6vw,26px);
  background:linear-gradient(158deg,rgba(27,110,104,.18),rgba(16,18,24,.94));
  border:1px solid var(--line);
  border-radius:var(--radius-b);
}
.data-card::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:linear-gradient(180deg,var(--gold),rgba(255,201,74,0));
}
.data-card__num{
  display:block;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(28px,4.4vw,44px);
  line-height:1.05;
  letter-spacing:.02em;
  color:var(--gold);
}
.data-card__label{
  display:block;
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.18em;
  color:var(--muted);
}
.data-card--teal::before{background:linear-gradient(180deg,var(--teal),rgba(79,224,208,0))}
.data-card--teal .data-card__num{color:var(--teal)}
.data-card--rose::before{background:linear-gradient(180deg,var(--rose),rgba(255,92,138,0))}
.data-card--rose .data-card__num{color:var(--rose)}

.index-strip{
  background:var(--paper);
  color:#0B0D12;
  border-radius:var(--radius-b);
  padding:clamp(18px,3vw,30px);
}
.index-strip *{color:inherit}
.index-strip__row{
  display:grid;
  grid-template-columns:56px minmax(0,1fr) auto;
  gap:12px;
  align-items:baseline;
  padding:12px 0;
  border-bottom:1px solid rgba(11,13,18,.14);
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.06em;
}
.index-strip__row:last-child{border-bottom:0}
.index-strip__no{color:#8A5F00;font-weight:700}
.index-strip__label{font-weight:600}
.index-strip__label a{color:#0B0D12;border-bottom:1px solid rgba(11,13,18,.35)}
.index-strip__label a:hover{color:#8A5F00;border-bottom-color:#8A5F00}
.index-strip__meta{color:rgba(11,13,18,.62);text-align:right}

.breadcrumb{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--muted);
  margin:0 0 22px;
}
.breadcrumb ol{
  list-style:none;
  margin:0;padding:0;
  display:flex;flex-wrap:wrap;gap:8px;
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--gold-dim)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--gold)}
.breadcrumb [aria-current="page"]{color:var(--text)}

.grid{display:grid;gap:var(--gap)}
.grid--7-5{grid-template-columns:7fr 5fr}
.grid--8-4{grid-template-columns:8fr 4fr}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--stack{grid-template-columns:1fr}

.figure{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--line);
  border-radius:var(--radius-a);
  background:
    radial-gradient(120% 100% at 20% 8%,rgba(79,224,208,.16),transparent 60%),
    radial-gradient(110% 90% at 88% 92%,rgba(255,201,74,.13),transparent 62%),
    #0C0E14;
}
.figure > img,.figure__media{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.figure--wide{aspect-ratio:21/9}
.figure--square{aspect-ratio:1/1}
.figure--tall{aspect-ratio:3/4}
.figure--overlay::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,8,12,0) 42%,rgba(7,8,12,.84));
  pointer-events:none;
}
.figure__caption{
  position:absolute;
  left:0;bottom:0;
  z-index:1;
  padding:14px 18px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--muted);
}

.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 14px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--muted);
  background:rgba(16,18,24,.7);
  border:1px solid var(--line);
  border-radius:999px;
  cursor:pointer;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.chip:hover{color:var(--text);border-color:var(--gold-dim)}
.chip.is-active,.chip[aria-pressed="true"]{
  color:var(--ink);
  background:var(--gold);
  border-color:var(--gold);
}
.tag{
  display:inline-block;
  padding:2px 9px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--teal);
  border:1px solid rgba(79,224,208,.35);
  border-radius:4px;
}
.tag--rose{color:var(--rose);border-color:rgba(255,92,138,.42)}
.status-dot{
  display:inline-block;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--rose);
  box-shadow:0 0 10px rgba(255,92,138,.85);
}
.copy-btn{
  padding:3px 10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--teal);
  background:transparent;
  border:1px solid var(--teal-dim);
  border-radius:4px;
  cursor:pointer;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.copy-btn:hover{color:var(--ink);background:var(--teal);border-color:var(--teal)}
.copy-btn.is-flash{color:var(--ink);background:var(--gold);border-color:var(--gold)}

.js-reveal [data-reveal]{
  opacity:0;
  transform:translateY(14px);
}
.js-reveal [data-reveal="shown"]{
  opacity:1;
  transform:none;
  transition:opacity .55s ease,transform .55s ease;
}

.skip-link{
  position:fixed;
  left:50%;
  top:-70px;
  transform:translateX(-50%);
  z-index:200;
  padding:10px 20px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--ink);
  background:var(--gold);
  border-radius:0 0 10px 10px;
  text-decoration:none;
  transition:top .2s ease;
}
.skip-link:focus{top:0;color:var(--ink)}

.read-progress{
  position:fixed;
  top:0;left:0;right:0;
  height:2px;
  z-index:120;
  background:rgba(255,255,255,.05);
  pointer-events:none;
}
.read-progress__bar{
  display:block;
  height:100%;
  width:0%;
  background:linear-gradient(90deg,var(--gold-dim),var(--gold) 60%,var(--teal));
  box-shadow:0 0 12px rgba(255,201,74,.55);
  transition:width .1s linear;
}

.masthead{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,8,12,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.masthead__glow{
  position:absolute;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(380px 200px at 22% 52%,rgba(79,224,208,.16),transparent 70%),
    radial-gradient(340px 180px at 78% 46%,rgba(255,201,74,.11),transparent 70%);
  animation:glow-drift 18s ease-in-out infinite alternate;
}
@keyframes glow-drift{
  from{transform:translate3d(-4%,0,0) scale(1);opacity:.72}
  to{transform:translate3d(5%,0,0) scale(1.14);opacity:1}
}
.masthead__inner{
  position:relative;
  z-index:1;
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding:20px var(--gutter) 14px;
  transition:padding .25s ease;
}
.masthead__brandline{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:14px;
}
.brand{
  justify-self:center;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:5px;
  text-decoration:none;
}
.brand__mark{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(30px,5.6vw,50px);
  line-height:1;
  letter-spacing:.08em;
  color:var(--text);
  text-shadow:
    0 0 22px rgba(255,201,74,.42),
    0 0 52px rgba(79,224,208,.22),
    0 0 2px rgba(255,201,74,.6);
  transition:font-size .25s ease;
}
.brand__sub{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.34em;
  color:var(--gold-dim);
  transition:opacity .25s ease;
}
.masthead__tools{
  justify-self:end;
  display:flex;
  align-items:center;
  gap:10px;
}
.account-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 15px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--teal);
  background:rgba(79,224,208,.06);
  border:1px solid var(--teal-dim);
  border-radius:999px;
  cursor:pointer;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.account-btn:hover,.account-btn[aria-expanded="true"]{
  color:var(--teal);
  border-color:var(--teal);
  background:rgba(79,224,208,.14);
}
.account-btn__dot{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--teal);
  box-shadow:0 0 8px rgba(79,224,208,.9);
}
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:8px 15px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
  background:transparent;
  border:1px solid var(--line);
  border-radius:999px;
  cursor:pointer;
  transition:color .18s ease,border-color .18s ease;
}
.nav-toggle__icon{display:flex;flex-direction:column;gap:4px}
.nav-toggle__bar{display:block;width:14px;height:1px;background:currentColor}
.nav-toggle[data-open]{color:var(--gold);border-color:var(--gold-dim)}
.nav{margin-top:14px}
.nav__list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:clamp(10px,2.6vw,34px);
}
.nav__link{
  display:inline-block;
  padding:6px 2px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.22em;
  color:var(--muted);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease,text-shadow .18s ease;
}
.nav__link:hover{color:var(--text);border-bottom-color:var(--gold-dim)}
.nav__link[aria-current="page"]{
  color:var(--gold);
  border-bottom-color:var(--gold);
  text-shadow:0 0 14px rgba(255,201,74,.45);
}
.masthead[data-condensed] .masthead__inner{padding-top:10px;padding-bottom:8px}
.masthead[data-condensed] .brand__mark{font-size:clamp(22px,3vw,30px)}
.masthead[data-condensed] .brand__sub{opacity:0}
.masthead[data-condensed] .nav{margin-top:8px}

.drawer{
  position:fixed;
  right:clamp(12px,3vw,26px);
  bottom:clamp(12px,3vw,26px);
  z-index:110;
  width:min(330px,calc(100vw - 24px));
  padding:20px;
  background:rgba(16,18,24,.97);
  border:1px solid var(--line);
  border-radius:var(--radius-b);
  box-shadow:0 24px 60px rgba(0,0,0,.62),inset 0 0 0 1px rgba(255,201,74,.06);
  transform:translateY(calc(100% + 34px));
  opacity:0;
  visibility:hidden;
  transition:transform .3s ease,opacity .3s ease,visibility .3s;
}
.drawer[data-open]{
  transform:none;
  opacity:1;
  visibility:visible;
}
.drawer__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:10px;
}
.drawer__title{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.2em;
  color:var(--gold);
}
.drawer__close{
  padding:3px 10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--muted);
  background:transparent;
  border:1px solid var(--line);
  border-radius:4px;
  cursor:pointer;
}
.drawer__close:hover{color:var(--gold);border-color:var(--gold-dim)}
.drawer__meta{
  margin:0 0 12px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--muted);
  max-width:none;
}
.drawer__list{
  list-style:none;
  margin:0 0 16px;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.drawer__list a{
  display:block;
  padding:9px 0;
  font-size:14px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer__list a:hover{color:var(--gold)}
.drawer__cta{width:100%}

.site-foot{
  margin-top:var(--sec-space);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(16,18,24,.62),rgba(7,8,12,1));
}
.site-foot__inner{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding:clamp(40px,6vw,72px) var(--gutter) 26px;
}
.site-foot__grid{
  display:grid;
  grid-template-columns:1.3fr 1fr 1.1fr;
  gap:var(--gap);
}
.foot-col__brand{
  margin:0 0 10px;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(24px,3vw,30px);
  letter-spacing:.06em;
  color:var(--text);
  text-shadow:0 0 20px rgba(255,201,74,.34);
  max-width:none;
}
.foot-col__desc{
  margin:0 0 16px;
  font-size:14.5px;
  color:var(--muted);
  max-width:24em;
}
.foot-col__title{
  margin:0 0 4px;
  padding-bottom:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.24em;
  color:var(--gold-dim);
  border-bottom:1px solid var(--line);
  max-width:none;
}
.foot-col__note{
  margin:14px 0 0;
  font-size:12.5px;
  color:var(--muted);
  max-width:24em;
}
.foot-flow{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px 16px;
}
.foot-flow a{
  display:inline-block;
  font-size:14px;
  color:var(--text);
  border-bottom:1px dashed var(--line);
  padding-bottom:2px;
}
.foot-flow a:hover{color:var(--gold);border-bottom-color:var(--gold-dim)}
.foot-links{
  list-style:none;
  margin:14px 0 0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:9px;
}
.foot-links a{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.12em;
  color:var(--muted);
}
.foot-links a:hover{color:var(--gold)}
.foot-contact{
  list-style:none;
  margin:14px 0 0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.foot-contact li{display:flex;flex-direction:column;gap:5px}
.foot-contact__k{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  color:var(--gold-dim);
}
.foot-contact__v{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  font-size:14px;
  color:var(--text);
}
.foot-contact__v .mono{font-size:13.5px;letter-spacing:.06em;color:var(--text)}
.site-foot__base{
  margin-top:clamp(30px,4vw,48px);
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  justify-content:space-between;
  font-size:11.5px;
  letter-spacing:.12em;
  color:var(--muted);
}

@media (max-width:1080px){
  .grid--7-5,.grid--8-4{grid-template-columns:1fr}
  .site-foot__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  body{font-size:16.5px}
  .nav-toggle{display:inline-flex}
  .masthead__brandline{grid-template-columns:1fr auto}
  .brand{justify-self:start;align-items:flex-start}
  .brand__mark{font-size:clamp(26px,7vw,38px)}
  .brand__sub{letter-spacing:.26em}
  .masthead__tools{justify-self:end}
  .nav{
    display:none;
    position:absolute;
    left:0;right:0;
    top:100%;
    margin-top:0;
    background:rgba(10,11,16,.99);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }
  .nav[data-open]{display:block}
  .nav__list{flex-direction:column;align-items:stretch;gap:0}
  .nav__link{
    display:block;
    padding:15px var(--gutter);
    border-bottom:1px solid var(--line);
    border-radius:0;
  }
  .nav__link:hover{border-bottom-color:var(--line);background:rgba(255,201,74,.05)}
  .nav__link[aria-current="page"]{
    border-bottom-color:var(--line);
    background:rgba(255,201,74,.08);
    border-left:2px solid var(--gold);
  }
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .grid--3{grid-template-columns:1fr}
  .site-foot__grid{grid-template-columns:1fr}
  .foot-flow{grid-template-columns:1fr}
  .index-strip__row{
    grid-template-columns:44px minmax(0,1fr);
    row-gap:4px;
  }
  .index-strip__meta{grid-column:2;text-align:left}
  .account-btn span:not(.account-btn__dot){display:none}
  .account-btn{padding:9px 12px}
  .site-foot__base{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
  .js-reveal [data-reveal]{opacity:1;transform:none}
  .masthead__glow{animation:none;opacity:.8}
  .btn::after{display:none}
}