:root{
  --void:#03070F;
  --navy:#07111F;
  --navy-2:#0B1829;
  --panel:#101F35;
  --panel-2:#152840;
  --cyan:#00E8FF;
  --cyan-hot:#5CFFF7;
  --cyan-dim:rgba(0,232,255,.12);
  --steel:#7A9BB8;
  --text:#EAF6FF;
  --muted:#8AA3B8;
  --line:rgba(0,232,255,.2);
  --line-soft:rgba(0,232,255,.1);
  --glow:rgba(0,232,255,.35);
  --font:"Noto Sans JP",sans-serif;
  --font-d:"Rajdhani","Noto Sans JP",sans-serif;
  --ease:cubic-bezier(.22,1,.36,1);
  --nav-h:4.35rem;
  --ink:#03070F;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scrollbar-width:none;-ms-overflow-style:none}
html::-webkit-scrollbar{display:none;width:0;height:0}
body{scrollbar-width:none;-ms-overflow-style:none}
body::-webkit-scrollbar,*::-webkit-scrollbar{display:none;width:0;height:0}
html,body{margin:0;padding:0}
body.yk{
  margin:0;padding:0;
  font-family:var(--font);
  color:var(--text);
  background:
    linear-gradient(180deg,rgba(0,232,255,.03),transparent 18%),
    var(--void);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3{font-family:var(--font-d);margin:0 0 .4em;line-height:1.12;font-weight:700;letter-spacing:.01em}
p{margin:0 0 1em}
address{font-style:normal}

.yk-skip{position:absolute;top:0;left:-9999px;background:var(--cyan);color:var(--ink);padding:.7rem 1rem;z-index:200;font-weight:700}
.yk-skip:focus{left:0}

/* —— Nav —— */
.yk-nav{
  position:fixed;inset:0 0 auto;z-index:80;
  display:flex;align-items:center;gap:1.1rem;
  min-height:var(--nav-h);
  padding:.8rem max(1rem,env(safe-area-inset-right)) .8rem max(1.2rem,env(safe-area-inset-left));
  background:transparent;
  transition:background .35s var(--ease),box-shadow .35s var(--ease),border-color .35s;
  border-bottom:1px solid transparent;
}
.yk-nav.is-solid,
body.is-nav-open .yk-nav{
  background:rgba(3,7,15,.92);
  backdrop-filter:blur(18px) saturate(1.2);
  box-shadow:0 12px 40px rgba(0,0,0,.45);
  border-bottom-color:var(--line);
}
.yk-nav__logo{
  font-family:var(--font-d);font-size:1.55rem;font-weight:700;color:#fff;
  letter-spacing:.04em;line-height:1;text-transform:lowercase;
}
.yk-nav__logo small{
  display:block;font-size:.58rem;letter-spacing:.38em;color:var(--cyan);
  font-weight:600;margin-top:.2rem;font-family:var(--font);
}
.yk-nav__links{margin-left:auto;display:flex;gap:1.25rem;font-size:.88rem;font-weight:600}
.yk-nav__links a{
  opacity:.7;transition:opacity .2s,color .2s;
  position:relative;padding:.2rem 0;
}
.yk-nav__links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:1px;
  background:var(--cyan);transition:right .3s var(--ease);
}
.yk-nav__links a.is-on,.yk-nav__links a:hover{opacity:1;color:var(--cyan-hot)}
.yk-nav__links a.is-on::after,.yk-nav__links a:hover::after{right:0}
.yk-nav__cta{margin-left:.4rem}

.yk-btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:.82rem 1.35rem;border-radius:.2rem;font-weight:700;font-size:.92rem;
  border:0;cursor:pointer;background:var(--cyan);color:var(--ink);
  font-family:var(--font);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,border-color .25s;
  -webkit-tap-highlight-color:transparent;
  box-shadow:0 0 0 1px rgba(0,232,255,.4),0 10px 28px var(--glow);
  letter-spacing:.02em;
}
.yk-btn:hover{transform:translateY(-2px);background:var(--cyan-hot);box-shadow:0 0 0 1px var(--cyan-hot),0 14px 36px var(--glow)}
.yk-btn:active{transform:scale(.97)}
.yk-btn--ghost{
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4);
  box-shadow:none;
}
.yk-btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:none;background:var(--cyan-dim)}
.yk-btn--cyan{background:transparent;color:var(--cyan);border:1px solid var(--cyan);box-shadow:0 0 24px rgba(0,232,255,.15)}
.yk-btn--cyan:hover{background:var(--cyan);color:var(--ink)}
.yk-btn--line{background:rgba(0,232,255,.06);color:#fff;border:1px solid var(--line);box-shadow:none}
.yk-btn--sand{background:var(--cyan);color:var(--ink)}

.yk-burger{
  display:none;margin-left:auto;width:48px;height:48px;min-width:48px;min-height:48px;padding:0;
  background:rgba(16,31,53,.9);border:1px solid var(--line);border-radius:.25rem;
  color:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:6px;
  -webkit-tap-highlight-color:transparent;z-index:95;position:relative;
  transition:background .25s,border-color .25s,transform .25s var(--ease);
}
.yk-burger:hover{border-color:var(--cyan);background:var(--cyan-dim)}
.yk-burger i{
  display:block;width:20px;height:2px;background:currentColor;border-radius:1px;
  transition:transform .38s var(--ease),opacity .28s,width .28s;
  transform-origin:center;
}
.yk-burger[aria-expanded="true"]{background:var(--cyan);color:var(--ink);border-color:var(--cyan)}
.yk-burger[aria-expanded="true"] i:nth-child(1){transform:translateY(8px) rotate(45deg)}
.yk-burger[aria-expanded="true"] i:nth-child(2){opacity:0;width:0}
.yk-burger[aria-expanded="true"] i:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

body.is-nav-open{
  overflow:hidden;
  touch-action:none;
  overscroll-behavior:none;
  position:fixed;
  width:100%;
  left:0;right:0;
}

/* —— Drawer —— */
.yk-drawer{
  position:fixed;inset:0;z-index:90;
  pointer-events:none;visibility:hidden;
}
.yk-drawer.is-open{
  pointer-events:auto;visibility:visible;
}
.yk-drawer__scrim{
  position:absolute;inset:0;
  background:rgba(1,4,10,.72);
  backdrop-filter:blur(8px);
  opacity:0;
  transition:opacity .38s var(--ease);
}
.yk-drawer.is-open .yk-drawer__scrim{opacity:1}
.yk-drawer__panel{
  position:absolute;right:0;top:0;bottom:0;width:min(360px,92vw);
  background:
    linear-gradient(165deg,rgba(0,232,255,.08),transparent 40%),
    linear-gradient(185deg,#0C1A2E 0%,var(--void) 100%);
  border-left:1px solid var(--line);
  padding:max(1.2rem,calc(env(safe-area-inset-top) + 4.9rem)) max(1.4rem,env(safe-area-inset-right)) max(1.75rem,env(safe-area-inset-bottom)) 1.4rem;
  display:grid;gap:0;align-content:start;
  box-shadow:-24px 0 64px rgba(0,0,0,.55);
  overflow-y:auto;-webkit-overflow-scrolling:touch;
  transform:translateX(104%);
  transition:transform .48s var(--ease);
}
.yk-drawer.is-open .yk-drawer__panel{transform:translateX(0)}
.yk-drawer.is-closing .yk-drawer__panel{transform:translateX(104%)}
.yk-drawer.is-closing .yk-drawer__scrim{opacity:0}
.yk-drawer__brand{
  font-family:var(--font-d);font-size:1.7rem;font-weight:700;color:#fff;margin:0 0 1.15rem;
  padding-bottom:1rem;border-bottom:1px solid var(--line);letter-spacing:.04em;line-height:1;
}
.yk-drawer__brand small{
  display:block;font-family:var(--font);font-size:.72rem;letter-spacing:.2em;color:var(--cyan);
  font-weight:600;margin-top:.45rem;
}
.yk-drawer__panel > a:not(.yk-btn){
  font-weight:600;color:var(--muted);padding:.9rem 0;min-height:54px;
  display:flex;align-items:center;border-bottom:1px solid var(--line-soft);
  font-size:1.08rem;transition:color .2s,padding-left .28s var(--ease),background .2s;
}
.yk-drawer__panel > a:not(.yk-btn).is-on,
.yk-drawer__panel > a:not(.yk-btn):hover{color:#fff;padding-left:.4rem;color:var(--cyan-hot)}
.yk-drawer__panel > .yk-btn{
  margin-top:1.25rem;justify-content:center;min-height:52px;width:100%;
}
.yk-drawer.is-open .yk-drawer__panel > a:not(.yk-btn),
.yk-drawer.is-open .yk-drawer__panel > .yk-btn{
  opacity:0;animation:ykSlideIn .5s var(--ease) both;
}
.yk-drawer.is-open .yk-drawer__panel > a:nth-child(2){animation-delay:.06s}
.yk-drawer.is-open .yk-drawer__panel > a:nth-child(3){animation-delay:.1s}
.yk-drawer.is-open .yk-drawer__panel > a:nth-child(4){animation-delay:.14s}
.yk-drawer.is-open .yk-drawer__panel > a:nth-child(5){animation-delay:.18s}
.yk-drawer.is-open .yk-drawer__panel > a:nth-child(6){animation-delay:.22s}
.yk-drawer.is-open .yk-drawer__panel > .yk-btn{animation-delay:.3s}
@keyframes ykSlideIn{from{opacity:0;transform:translateX(22px)}to{opacity:1;transform:none}}

#yk-main{margin:0;padding:0}
.yk-progress{display:none}

/* —— Shared —— */
.yk-k{
  color:var(--cyan);letter-spacing:.28em;text-transform:uppercase;
  font-size:.68rem;font-weight:700;display:inline-block;margin-bottom:.55rem;
  font-family:var(--font-d);
}
.yk-muted{color:var(--muted)}
.yk-meta{color:var(--cyan);font-weight:700;font-size:.82rem;margin:0 0 .35rem;letter-spacing:.04em;font-family:var(--font-d)}
.yk-sec{padding:4.75rem clamp(1.1rem,4vw,3.25rem)}
.yk-sec--dense{padding-block:4.25rem}
.yk-sec--panel{
  background:
    linear-gradient(90deg,transparent,rgba(0,232,255,.03),transparent),
    var(--navy);
  border-block:1px solid var(--line-soft);
}
.yk-sec--mist{background:linear-gradient(180deg,rgba(0,232,255,.04),transparent)}
.yk-head{max-width:620px;margin-bottom:2rem}
.yk-head h2{font-size:clamp(1.75rem,3.6vw,2.6rem);color:#fff;letter-spacing:.02em}
.yk-head--row{
  max-width:1180px;margin-inline:auto;margin-bottom:2rem;
  display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:1rem 2rem;
}
.yk-head--row .yk-muted{max-width:36ch;margin:0}

.yk-ken{animation:ykKen 24s ease-in-out infinite alternate;will-change:transform}
@keyframes ykKen{from{transform:scale(1)}to{transform:scale(1.08) translate(-1%,-.6%)}}

.yk-pulse{
  width:8px;height:8px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 0 rgba(0,232,255,.6);
  animation:ykPulse 1.8s ease-out infinite;flex-shrink:0;
}
@keyframes ykPulse{
  0%{box-shadow:0 0 0 0 rgba(0,232,255,.55)}
  70%{box-shadow:0 0 0 10px rgba(0,232,255,0)}
  100%{box-shadow:0 0 0 0 rgba(0,232,255,0)}
}

/* —— Hero —— */
.yk-hero{
  position:relative;min-height:100vh;min-height:100dvh;
  display:grid;align-items:end;overflow:hidden;
}
.yk-hero__media,.yk-hero__media img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 28%;
}
.yk-hero__veil{
  position:absolute;inset:0;
  background:
    linear-gradient(105deg,rgba(3,7,15,.97) 0%,rgba(3,7,15,.78) 42%,rgba(3,7,15,.35) 72%,rgba(3,7,15,.55) 100%),
    linear-gradient(0deg,rgba(3,7,15,.92) 0%,transparent 42%);
}
.yk-hero__grid{
  position:absolute;inset:0;pointer-events:none;z-index:1;opacity:.35;
  background-image:
    linear-gradient(rgba(0,232,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,232,255,.07) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(105deg,#000 20%,transparent 70%);
}
.yk-hero__frame{position:absolute;inset:1.25rem;z-index:2;pointer-events:none}
.yk-hero__frame span{position:absolute;width:28px;height:28px;border-color:var(--cyan);border-style:solid;opacity:.7}
.yk-hero__frame span:nth-child(1){top:0;left:0;border-width:2px 0 0 2px}
.yk-hero__frame span:nth-child(2){top:0;right:0;border-width:2px 2px 0 0}
.yk-hero__frame span:nth-child(3){bottom:0;left:0;border-width:0 0 2px 2px}
.yk-hero__frame span:nth-child(4){bottom:0;right:0;border-width:0 2px 2px 0}
.yk-hero__status{
  position:absolute;top:calc(var(--nav-h) + .85rem);left:clamp(1.15rem,5vw,4rem);z-index:3;
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--font-d);font-size:.78rem;letter-spacing:.18em;color:var(--cyan);
  font-weight:600;text-transform:uppercase;
}
.yk-hero__copy{
  position:relative;z-index:3;
  padding:calc(var(--nav-h) + 3.5rem) clamp(1.15rem,5vw,4rem) 3.75rem;
  max-width:820px;
}
.yk-hero__brand{
  font-family:var(--font-d);font-size:clamp(3.6rem,13vw,7.2rem);
  font-weight:700;color:#fff;line-height:.88;margin:0 0 1rem;letter-spacing:.02em;
  text-shadow:0 0 60px rgba(0,232,255,.25);
}
.yk-hero__brand small{
  display:block;font-size:.18em;letter-spacing:.32em;color:var(--cyan);
  margin-top:.55rem;font-weight:600;font-family:var(--font);
}
.yk-hero h1{
  color:#fff;font-size:clamp(1.35rem,3.2vw,2.05rem);font-weight:600;max-width:14ch;
  letter-spacing:.04em;
}
.yk-hero__lead{color:rgba(234,246,255,.88);max-width:38ch;font-size:1.02rem;margin-bottom:0}
.yk-hero__actions{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.5rem}

/* —— Ticker —— */
.yk-ticker{
  overflow:hidden;border-block:1px solid var(--line);
  background:var(--navy-2);padding:1.05rem 0;
}
.yk-ticker__track{
  display:flex;gap:2.75rem;width:max-content;
  animation:ykMarquee 32s linear infinite;
  font-family:var(--font-d);font-weight:600;font-size:.95rem;letter-spacing:.14em;
  color:var(--cyan);text-transform:uppercase;
}
.yk-ticker__track span{white-space:nowrap}
.yk-ticker__track span::before{content:"// ";opacity:.55}
@keyframes ykMarquee{to{transform:translateX(-50%)}}

/* —— Signal (intro + stats over image) —— */
.yk-signal{
  position:relative;min-height:min(78vh,720px);
  display:grid;align-items:stretch;overflow:hidden;
}
.yk-signal__media,.yk-signal__media img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.yk-signal__veil{
  position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(3,7,15,.94) 0%,rgba(3,7,15,.72) 48%,rgba(3,7,15,.45) 100%),
    linear-gradient(0deg,rgba(3,7,15,.75),transparent 40%);
}
.yk-signal__in{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:2rem;
  padding:3.75rem clamp(1.15rem,4vw,3.25rem);
  max-width:1240px;margin:0 auto;width:100%;align-items:center;
}
.yk-signal__copy h2{font-size:clamp(1.7rem,3.4vw,2.5rem);color:#fff}
.yk-signal__copy p{color:rgba(234,246,255,.88);max-width:42ch;margin-bottom:0}
.yk-chips{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:1.2rem}
.yk-chips li{
  padding:.4rem .8rem;font-size:.78rem;font-weight:600;
  border:1px solid var(--line);background:rgba(0,232,255,.08);color:var(--cyan);
  font-family:var(--font-d);letter-spacing:.06em;
}
.yk-signal__stats{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}
.yk-signal__stats article{
  background:rgba(7,17,31,.78);border:1px solid var(--line);
  padding:1.35rem 1.1rem;min-height:112px;
  backdrop-filter:blur(10px);
  display:flex;flex-direction:column;justify-content:center;
}
.yk-signal__stats strong{
  display:block;font-family:var(--font-d);font-size:clamp(1.6rem,3vw,2.15rem);
  color:var(--cyan);margin-bottom:.25rem;letter-spacing:.04em;font-weight:700;
}
.yk-signal__stats span{color:var(--muted);font-size:.86rem}

/* —— Bento services —— */
.yk-bento{
  display:grid;grid-template-columns:repeat(6,1fr);gap:.85rem;
  max-width:1180px;margin:0 auto;
}
.yk-bento__item{
  grid-column:span 2;position:relative;overflow:hidden;
  border:1px solid var(--line);background:var(--panel);
  min-height:280px;display:flex;flex-direction:column;
  transition:border-color .3s,transform .3s var(--ease),box-shadow .3s;
}
.yk-bento__item--lg{grid-column:span 4;grid-row:span 2;min-height:100%}
.yk-bento__item:hover{
  border-color:rgba(0,232,255,.55);
  transform:translateY(-3px);
  box-shadow:0 18px 40px rgba(0,0,0,.35),0 0 30px rgba(0,232,255,.08);
}
.yk-bento__media{flex:1;min-height:150px;overflow:hidden;position:relative}
.yk-bento__item--lg .yk-bento__media{min-height:320px}
.yk-bento__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.yk-bento__body{
  padding:1.15rem 1.2rem 1.3rem;
  background:linear-gradient(180deg,rgba(7,17,31,.92),var(--navy));
  border-top:1px solid var(--line-soft);
}
.yk-bento__body h3{color:#fff;font-size:1.15rem;margin:.1rem 0 .4rem;letter-spacing:.03em}
.yk-bento__body p{color:var(--muted);margin:0;font-size:.9rem}
.yk-bento__item--lg .yk-bento__body{padding:1.4rem 1.5rem 1.55rem}
.yk-bento__item--lg .yk-bento__body h3{font-size:1.4rem}

/* legacy svc alias for other pages */
.yk-svc{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;max-width:1180px;margin:0 auto}
.yk-svc__card{background:var(--panel);border:1px solid var(--line);overflow:hidden;display:flex;flex-direction:column}
.yk-svc__media{aspect-ratio:16/11;overflow:hidden}
.yk-svc__media img{width:100%;height:100%;object-fit:cover}
.yk-svc__body{padding:1.2rem 1.25rem 1.4rem}
.yk-svc__body h3{color:#fff;font-size:1.12rem}
.yk-svc__body p{color:var(--muted);margin:0;font-size:.93rem}

/* —— Hotline —— */
.yk-hotline{
  position:relative;min-height:min(68vh,640px);display:grid;align-items:center;overflow:hidden;
}
.yk-hotline__media,.yk-hotline__media img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.yk-hotline__veil{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(3,7,15,.95) 8%,rgba(3,7,15,.6) 55%,rgba(3,7,15,.35));
}
.yk-hotline__copy{
  position:relative;z-index:2;padding:3.75rem clamp(1.15rem,5vw,4rem);max-width:640px;
}
.yk-hotline__copy h2{font-size:clamp(1.9rem,4.2vw,3rem);color:#fff}
.yk-hotline__copy p{color:rgba(234,246,255,.9);max-width:36ch;margin-bottom:0}
.yk-hotline__actions{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.35rem}

/* legacy emerg */
.yk-emerg{position:relative;min-height:min(72vh,680px);display:grid;align-items:center;overflow:hidden}
.yk-emerg__media,.yk-emerg__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.yk-emerg__veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,7,15,.94) 12%,rgba(3,7,15,.5) 55%,rgba(3,7,15,.3))}
.yk-emerg__copy{position:relative;z-index:2;padding:3.75rem clamp(1.15rem,5vw,4rem);max-width:620px}
.yk-emerg__copy h2{font-size:clamp(1.85rem,4vw,2.9rem);color:#fff}
.yk-emerg__copy p{color:rgba(234,246,255,.9);max-width:36ch;margin-bottom:0}
.yk-emerg__actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.35rem}

/* —— Protocol process —— */
.yk-proto{
  display:grid;grid-template-columns:repeat(4,1fr);gap:.75rem;
  max-width:1180px;margin:0 auto;
}
.yk-proto article{
  border:1px solid var(--line);background:var(--panel);overflow:hidden;height:100%;
  display:flex;flex-direction:column;
}
.yk-proto__media{position:relative;aspect-ratio:5/3.4;overflow:hidden}
.yk-proto__media img{width:100%;height:100%;object-fit:cover}
.yk-proto__media b{
  position:absolute;left:0;bottom:0;
  font-family:var(--font-d);font-size:1.65rem;color:var(--ink);font-weight:700;
  background:var(--cyan);padding:.2rem .65rem;letter-spacing:.06em;
}
.yk-proto__body{padding:1rem 1.05rem 1.2rem;flex:1}
.yk-proto h3{color:#fff;font-size:1.05rem;margin:0 0 .35rem}
.yk-proto p{color:var(--muted);font-size:.88rem;margin:0}

.yk-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;max-width:1180px;margin:0 auto}
.yk-flow article{background:var(--panel);border:1px solid var(--line);overflow:hidden;height:100%}
.yk-flow__media{position:relative;aspect-ratio:5/3.3;overflow:hidden}
.yk-flow__media img{width:100%;height:100%;object-fit:cover}
.yk-flow__media b{position:absolute;left:.75rem;bottom:.75rem;font-family:var(--font-d);font-size:1.5rem;color:var(--ink);background:var(--cyan);padding:.15rem .5rem}
.yk-flow h3{padding:.95rem 1.05rem .3rem;color:#fff;font-size:1.02rem}
.yk-flow p{padding:0 1.05rem 1.15rem;color:var(--muted);font-size:.88rem;margin:0}

/* —— Dual / why —— */
.yk-dual{
  display:grid;grid-template-columns:1.05fr .95fr;min-height:min(80vh,700px);
  border-block:1px solid var(--line-soft);
}
.yk-dual__media{overflow:hidden;min-height:360px;position:relative}
.yk-dual__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;min-height:100%}
.yk-dual__copy{
  background:var(--navy);padding:clamp(2.5rem,5vw,4rem) clamp(1.4rem,4vw,3.5rem);
  display:flex;flex-direction:column;justify-content:center;
  border-left:1px solid var(--line);
}
.yk-dual__copy h2{font-size:clamp(1.7rem,3.2vw,2.45rem);color:#fff}
.yk-why{display:grid;gap:.65rem;margin:1.2rem 0 1.5rem}
.yk-why li{
  padding:.9rem 1rem;border-left:3px solid var(--cyan);
  background:rgba(0,232,255,.05);
}
.yk-why strong{display:block;color:#fff;margin-bottom:.12rem;font-family:var(--font-d);letter-spacing:.03em}
.yk-why span{color:var(--muted);font-size:.9rem}

.yk-split{display:grid;grid-template-columns:1fr 1fr;gap:2.25rem;align-items:center;max-width:1180px;margin:0 auto}
.yk-split__media{overflow:hidden;border:1px solid var(--line);min-height:340px}
.yk-split__media img{width:100%;height:100%;object-fit:cover;min-height:360px}
.yk-split__copy h2{font-size:clamp(1.65rem,3vw,2.35rem);color:#fff}

/* —— Rates —— */
.yk-rates{
  display:grid;grid-template-columns:repeat(4,1fr);gap:.75rem;
  max-width:1180px;margin:0 auto;
}
.yk-rates article{
  background:var(--panel);border:1px solid var(--line);
  padding:1.45rem 1.2rem;min-height:165px;
  transition:border-color .25s,transform .25s var(--ease),box-shadow .25s;
}
.yk-rates article:hover{
  border-color:var(--cyan);transform:translateY(-3px);
  box-shadow:0 0 28px rgba(0,232,255,.12);
}
.yk-rates h3{color:#fff;font-size:1.02rem;letter-spacing:.04em}
.yk-rates__num{
  font-family:var(--font-d);font-size:1.75rem;font-weight:700;color:var(--cyan);
  margin:.35rem 0 .5rem;letter-spacing:.04em;
}
.yk-rates p{color:var(--muted);margin:0;font-size:.88rem}

.yk-price{display:grid;grid-template-columns:repeat(4,1fr);gap:.9rem;max-width:1180px;margin:0 auto}
.yk-price article{background:var(--panel);border:1px solid var(--line);padding:1.4rem 1.2rem;min-height:160px}
.yk-price h3{color:#fff;font-size:1.02rem}
.yk-price__num{font-family:var(--font-d);font-size:1.6rem;font-weight:700;color:var(--cyan);margin:.35rem 0 .5rem}
.yk-price p{color:var(--muted);margin:0;font-size:.88rem}

/* —— Field voices —— */
.yk-field{
  display:grid;grid-template-columns:repeat(3,1fr);gap:.85rem;
  max-width:1180px;margin:0 auto;
}
.yk-field blockquote{
  margin:0;background:var(--panel);border:1px solid var(--line);
  padding:1.35rem;display:grid;gap:.85rem;height:100%;
}
.yk-field__media{width:52px;height:52px;overflow:hidden;border:2px solid var(--cyan)}
.yk-field__media img{width:100%;height:100%;object-fit:cover}
.yk-field p{font-family:var(--font-d);font-size:1.08rem;color:#fff;margin:0;line-height:1.5;letter-spacing:.02em}
.yk-field cite{font-style:normal;font-size:.86rem;color:var(--cyan);font-weight:700}
.yk-field cite span{color:var(--muted);font-weight:500}

.yk-voices{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem;max-width:1180px;margin:0 auto}
.yk-voices blockquote{margin:0;background:var(--panel);border:1px solid var(--line);padding:1.3rem;display:grid;gap:.85rem;height:100%}
.yk-voices__media{width:56px;height:56px;border-radius:50%;overflow:hidden;border:2px solid var(--cyan)}
.yk-voices__media img{width:100%;height:100%;object-fit:cover}
.yk-voices p{font-family:var(--font-d);font-size:1.02rem;color:#fff;margin:0;line-height:1.55}
.yk-voices cite{font-style:normal;font-size:.86rem;color:var(--cyan);font-weight:700}
.yk-voices cite span{color:var(--muted);font-weight:500}

/* —— FAQ band —— */
.yk-faqband{
  display:grid;grid-template-columns:.9fr 1.1fr;min-height:min(85vh,760px);
  border-block:1px solid var(--line-soft);
}
.yk-faqband__media{overflow:hidden;position:relative;min-height:320px}
.yk-faqband__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.yk-faqband__copy{
  background:var(--navy-2);padding:clamp(2.5rem,5vw,4rem) clamp(1.3rem,4vw,3.25rem);
  border-left:1px solid var(--line);display:flex;flex-direction:column;justify-content:center;
}
.yk-faqband__copy .yk-head{margin-bottom:1.25rem}

.yk-faq-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:2.25rem;align-items:start;max-width:1180px;margin:0 auto}
.yk-faq-grid__media{overflow:hidden;border:1px solid var(--line);position:sticky;top:calc(var(--nav-h) + 1rem)}
.yk-faq-grid__media img{width:100%;aspect-ratio:4/5;object-fit:cover}
.yk-faq-grid__copy .yk-head{margin-bottom:1.25rem}

.yk-faq details{
  border:1px solid var(--line);padding:0;margin-bottom:.55rem;
  background:rgba(3,7,15,.45);overflow:hidden;
}
.yk-faq summary{
  cursor:pointer;font-weight:700;color:#fff;padding:1.05rem 1.15rem;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:52px;
  font-family:var(--font-d);letter-spacing:.03em;
}
.yk-faq summary::-webkit-details-marker{display:none}
.yk-faq summary::after{
  content:"+";font-family:var(--font-d);font-size:1.35rem;color:var(--cyan);
  transition:transform .28s var(--ease);flex-shrink:0;
}
.yk-faq details[open] summary{border-bottom:1px solid var(--line-soft)}
.yk-faq details[open] summary::after{content:"–";color:var(--cyan-hot)}
.yk-faq details p{margin:0;padding:0 1.15rem 1.15rem;color:var(--muted)}

/* —— Journal —— */
.yk-journal{
  display:grid;grid-template-columns:repeat(3,1fr);gap:.85rem;
  max-width:1180px;margin:0 auto;
}
.yk-journal article{
  background:var(--panel);border:1px solid var(--line);overflow:hidden;
  height:100%;display:flex;flex-direction:column;
  transition:border-color .25s,transform .25s var(--ease);
}
.yk-journal article:hover{border-color:rgba(0,232,255,.5);transform:translateY(-3px)}
.yk-journal img{width:100%;aspect-ratio:16/11;object-fit:cover}
.yk-journal__body{padding:1.15rem 1.2rem 1.35rem;flex:1}
.yk-journal h3{color:#fff;font-size:1.1rem}
.yk-journal p{color:var(--muted);margin:0;font-size:.9rem}

.yk-blog{display:grid;grid-template-columns:repeat(3,1fr);gap:1.15rem;max-width:1180px;margin:0 auto}
.yk-blog article{background:var(--panel);border:1px solid var(--line);overflow:hidden;height:100%;display:flex;flex-direction:column}
.yk-blog img{width:100%;aspect-ratio:16/11;object-fit:cover}
.yk-blog__body{padding:1.15rem 1.2rem 1.35rem;flex:1}
.yk-blog h3{color:#fff;font-size:1.08rem}
.yk-blog p{color:var(--muted);margin:0;font-size:.9rem}

/* —— Cover areas —— */
.yk-cover{
  position:relative;min-height:min(70vh,620px);display:grid;align-items:end;overflow:hidden;
}
.yk-cover__media,.yk-cover__media img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.yk-cover__veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,15,.35),rgba(3,7,15,.92) 55%);
}
.yk-cover__in{
  position:relative;z-index:2;padding:3.5rem clamp(1.15rem,4vw,3.25rem);
  max-width:1180px;margin:0 auto;width:100%;
}
.yk-cover .yk-head{margin-bottom:1.5rem}
.yk-cover .yk-muted{color:rgba(234,246,255,.75)}
.yk-cover__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.75rem}
.yk-cover__grid article{
  background:rgba(7,17,31,.82);border:1px solid var(--line);
  padding:1.35rem 1.15rem;min-height:120px;backdrop-filter:blur(8px);
  display:flex;flex-direction:column;justify-content:center;gap:.3rem;
  transition:border-color .25s,transform .25s var(--ease);
}
.yk-cover__grid article:hover{border-color:var(--cyan);transform:translateY(-2px)}
.yk-cover__grid strong{font-family:var(--font-d);font-size:1.15rem;color:#fff;font-weight:700;letter-spacing:.03em}
.yk-cover__grid span{color:var(--muted);font-size:.9rem}

.yk-areas{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;max-width:1180px;margin:0 auto}
.yk-areas article{
  background:var(--panel);border:1px solid var(--line);padding:1.45rem 1.2rem;min-height:130px;
  display:flex;flex-direction:column;justify-content:center;gap:.35rem;
}
.yk-areas strong{font-family:var(--font-d);font-size:1.15rem;color:#fff;font-weight:700}
.yk-areas span{color:var(--muted);font-size:.9rem}

/* —— CTA —— */
.yk-cta{
  position:relative;padding:5.25rem 1.35rem;text-align:center;overflow:hidden;min-height:420px;
  display:grid;place-items:center;
}
.yk-cta__media,.yk-cta__media img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.yk-cta__veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(3,7,15,.55),rgba(3,7,15,.92)),
    radial-gradient(600px 280px at 50% 80%,rgba(0,232,255,.18),transparent 70%);
}
.yk-cta__in{position:relative;z-index:2;max-width:560px}
.yk-cta h2{font-size:clamp(1.8rem,4vw,2.8rem);color:#fff}
.yk-cta p{color:rgba(234,246,255,.9);margin:0 auto 1.35rem;max-width:36ch}
.yk-cta__actions{display:flex;flex-wrap:wrap;gap:.7rem;justify-content:center}

/* —— Legacy page structures —— */
.yk-chapter{
  margin:0;padding:0;min-height:100vh;min-height:100dvh;
  position:relative;display:grid;align-items:end;overflow:hidden;
}
.yk-chapter__media,.yk-chapter__media img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center top;
  transform-origin:center top;animation:ykKen 22s ease-in-out infinite alternate;
}
.yk-chapter__veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,15,.3),rgba(3,7,15,.92));
}
.yk-chapter__copy{position:relative;z-index:2;padding:0 clamp(1.15rem,5vw,4rem) 4.5rem;max-width:720px}
.yk-chapter__brand{font-family:var(--font-d);font-size:clamp(2.8rem,9vw,5.2rem);color:#fff;line-height:.95;font-weight:700;letter-spacing:.03em}
.yk-chapter__brand small{display:block;font-size:.28em;letter-spacing:.28em;color:var(--cyan);margin-top:.4rem}
.yk-chapter h1,.yk-chapter h2{color:#fff;font-size:clamp(1.35rem,3vw,2.1rem)}
.yk-chapter p{color:rgba(234,246,255,.9);max-width:36ch}
.yk-chapter__actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.3rem}

.yk-dest{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.yk-dest article{position:relative;overflow:hidden;min-height:280px;border:1px solid var(--line)}
.yk-dest img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.yk-dest .body{
  position:relative;z-index:2;padding:1.25rem;margin-top:auto;
  background:linear-gradient(transparent,rgba(3,7,15,.94));height:100%;
  display:flex;flex-direction:column;justify-content:flex-end;
}

.yk-pack{display:grid;gap:1.25rem}
.yk-pack article{
  display:grid;grid-template-columns:1.1fr 1fr;gap:0;
  background:var(--panel);overflow:hidden;min-height:260px;border:1px solid var(--line);
}
.yk-pack img{width:100%;height:100%;object-fit:cover;min-height:240px}
.yk-pack .body{padding:1.75rem;display:grid;align-content:center}
.yk-pack .price{color:var(--cyan);font-weight:700;font-size:1.2rem;font-family:var(--font-d)}

.yk-team{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
.yk-team article{background:var(--panel);overflow:hidden;border:1px solid var(--line)}
.yk-team img{width:100%;aspect-ratio:4/5;object-fit:cover;display:block;position:static}
.yk-team__body{padding:1.25rem 1.35rem 1.5rem}
.yk-team__body h3{margin:.2rem 0 .5rem;color:#fff}
.yk-team__body p{margin:0;color:rgba(234,246,255,.9)}

.yk-path{stroke:var(--cyan);stroke-width:2;fill:none;stroke-dasharray:800;stroke-dashoffset:800}
.yk-path.drawn{animation:ykDraw 2.2s var(--ease) forwards}
@keyframes ykDraw{to{stroke-dashoffset:0}}
.yk-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.yk-steps li{background:var(--cyan-dim);padding:1.4rem;border-top:3px solid var(--cyan)}
.yk-steps b{display:block;color:var(--cyan);font-size:1.5rem;font-family:var(--font-d)}

.yk-stack{display:grid;gap:.85rem}
.yk-stack article{background:var(--panel);padding:1.25rem;border:1px solid var(--line)}
.yk-stack article h3{color:#fff;margin:0 0 .35rem}
.yk-stack article p{margin:0;color:var(--muted)}

.yk-form{display:grid;gap:.9rem}
.yk-form input,.yk-form textarea{
  width:100%;padding:.85rem 1rem;border-radius:.2rem;
  border:1px solid var(--line);background:#050B14;color:#fff;font:inherit;
}
.yk-form input:focus,.yk-form textarea:focus{outline:1px solid var(--cyan);border-color:var(--cyan)}
.yk-map iframe{width:100%;height:300px;border:0}

.yk-pill-row{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.15rem}
.yk-pill-row li{
  padding:.42rem .85rem;font-size:.8rem;font-weight:600;
  border:1px solid var(--line);background:var(--cyan-dim);color:var(--cyan);
}
.yk-intro{display:grid;grid-template-columns:1.05fr 1fr;gap:2.25rem;max-width:1180px;margin:0 auto}
.yk-intro h2{font-size:clamp(1.65rem,3.2vw,2.35rem);color:#fff}
.yk-intro__stats{display:grid;grid-template-columns:1fr 1fr;gap:.9rem}
.yk-intro__stats article{background:var(--panel);border:1px solid var(--line);padding:1.4rem 1.15rem;min-height:118px;display:flex;flex-direction:column;justify-content:center}
.yk-intro__stats strong{display:block;font-family:var(--font-d);font-size:clamp(1.55rem,3vw,2.05rem);color:var(--cyan);margin-bottom:.3rem}
.yk-intro__stats span{color:var(--muted);font-size:.88rem}
.yk-marquee{overflow:hidden;border-block:1px solid var(--line);background:var(--navy-2);padding:1rem 0}
.yk-marquee__track{display:flex;gap:2.5rem;width:max-content;animation:ykMarquee 34s linear infinite;font-family:var(--font-d);font-weight:700;font-size:.92rem;letter-spacing:.08em;color:var(--cyan)}
.yk-marquee__track span{white-space:nowrap}

/* —— Footer —— */
.yk-foot{
  padding:3.25rem clamp(1.15rem,4vw,3rem) 1.5rem;
  border-top:1px solid var(--line);font-size:.9rem;color:var(--muted);background:#02060C;
}
.yk-foot__grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:2rem;max-width:1200px;margin:0 auto 1.5rem}
.yk-foot__brand{
  display:block;font-family:var(--font-d);font-size:1.65rem;color:var(--cyan);
  margin-bottom:.35rem;font-weight:700;letter-spacing:.04em;
}
.yk-foot__tag{
  color:var(--cyan);font-size:.78rem;letter-spacing:.18em;margin:0 0 .75rem;
  font-family:var(--font-d);font-weight:600;opacity:.85;
}
.yk-foot h3{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);margin:0 0 .8rem;font-family:var(--font-d)}
.yk-foot ul{display:grid;gap:.4rem;list-style:none;padding:0;margin:0}
.yk-foot a{color:inherit}.yk-foot a:hover{color:var(--cyan)}
.yk-foot address{font-style:normal;display:grid;gap:.45rem;color:var(--text)}
.yk-foot__social{display:grid;gap:.4rem}
.yk-foot__copy{max-width:1200px;margin:0 auto;padding-top:1.2rem;border-top:1px solid var(--line-soft);font-size:.82rem}

/* —— Reveal —— */
.js [data-yk]{
  opacity:0;transform:translateY(28px);
  transition:opacity .85s var(--ease),transform .85s var(--ease);
  transition-delay:calc(var(--d,0)*70ms);
}
.js [data-yk].in{opacity:1;transform:none}
.js .yk-reveal-img,.js [data-yk] img{
  transform:scale(1.08);transition:transform 1.2s var(--ease);
}
.js [data-yk].in .yk-reveal-img,.js [data-yk].in img{transform:scale(1)}
.js .yk-bento__media,.js .yk-proto__media,.js .yk-dual__media,.js .yk-faqband__media,.js .yk-journal article,
.js .yk-svc__media,.js .yk-flow__media,.js .yk-split__media,.js .yk-faq-grid__media,.js .yk-blog article{
  overflow:hidden;
}

@media(max-width:1100px){
  .yk-bento{grid-template-columns:repeat(2,1fr)}
  .yk-bento__item,.yk-bento__item--lg{grid-column:span 1;grid-row:span 1}
  .yk-bento__item--lg .yk-bento__media{min-height:220px}
  .yk-svc,.yk-blog,.yk-voices,.yk-journal,.yk-field{grid-template-columns:1fr 1fr}
  .yk-proto,.yk-flow,.yk-price,.yk-rates,.yk-areas,.yk-cover__grid{grid-template-columns:1fr 1fr}
  .yk-signal__in,.yk-dual,.yk-faqband,.yk-intro,.yk-split,.yk-faq-grid{grid-template-columns:1fr}
  .yk-dual__media{min-height:300px}
  .yk-faqband__media{min-height:280px}
  .yk-faq-grid__media{position:static;max-height:380px}
  .yk-faq-grid__media img{aspect-ratio:16/10;max-height:380px}
  .yk-dual__copy{border-left:0;border-top:1px solid var(--line)}
  .yk-faqband__copy{border-left:0;border-top:1px solid var(--line)}
  .yk-split__media{min-height:260px}
  .yk-split__media img{min-height:260px}
}

@media(max-width:900px){
  .yk-foot__grid{grid-template-columns:1fr 1fr}
  .yk-nav__links,.yk-nav__cta{display:none}
  .yk-burger{display:flex}
  .yk-nav{
    background:rgba(3,7,15,.94);backdrop-filter:blur(16px);
    padding-top:max(.8rem,env(safe-area-inset-top));
    border-bottom-color:var(--line-soft);
  }
  .yk-dest,.yk-steps,.yk-team{grid-template-columns:1fr 1fr}
  .yk-pack article{grid-template-columns:1fr}
  .yk-sec{padding:3.15rem max(1rem,env(safe-area-inset-right)) 3.15rem max(1rem,env(safe-area-inset-left))}
  .yk-btn{min-height:48px}
  .yk-hero{min-height:100svh}
  .yk-hero__frame{inset:.85rem}
  .yk-hero__status{font-size:.7rem;letter-spacing:.12em}
  .yk-signal{min-height:auto}
  .yk-signal__in{padding:3rem 1.1rem}
  .yk-hotline{min-height:auto}
  [style*="repeat(3"],[style*="repeat(4"]{grid-template-columns:1fr 1fr!important}
}

@media(max-width:640px){
  .yk-bento,.yk-svc,.yk-blog,.yk-voices,.yk-journal,.yk-field,.yk-proto,.yk-flow,.yk-price,.yk-rates,.yk-areas,.yk-cover__grid,.yk-dest,.yk-steps,.yk-team,.yk-signal__stats,.yk-intro__stats{grid-template-columns:1fr}
  .yk-foot__grid{grid-template-columns:1fr}
  .yk-hero__actions,.yk-hotline__actions,.yk-emerg__actions,.yk-cta__actions{flex-direction:column;align-items:stretch}
  .yk-hero__actions .yk-btn,.yk-hotline__actions .yk-btn,.yk-emerg__actions .yk-btn,.yk-cta__actions .yk-btn{justify-content:center;width:100%}
  .yk-hero__copy{padding-bottom:max(3rem,env(safe-area-inset-bottom))}
  .yk-hero__brand{font-size:clamp(3rem,16vw,4.4rem)}
  .yk-ticker__track{animation-duration:24s}
  .yk-sec{padding:2.6rem 1rem}
  .yk-cover__grid article,.yk-areas article{min-height:110px}
  .yk-hotline__copy,.yk-emerg__copy{padding:3rem 1.1rem}
  .yk-cta{min-height:360px;padding:4rem 1.1rem}
  .yk-head--row{flex-direction:column;align-items:flex-start}
  [style*="grid-template-columns"]{grid-template-columns:1fr!important}
}

@media(prefers-reduced-motion:reduce){
  .yk-ken,.yk-hero__media img,.yk-chapter__media img,.yk-ticker__track,.yk-marquee__track,.yk-pulse,
  .yk-drawer__panel,.yk-drawer__scrim,.yk-drawer.is-open .yk-drawer__panel > a,.yk-drawer.is-open .yk-drawer__panel > .yk-btn{animation:none!important;transition:none!important}
  .yk-drawer__panel{transform:none}
  .yk-drawer.is-open .yk-drawer__panel{transform:none}
  .js [data-yk],.js [data-yk] img,.js .yk-reveal-img{transition:none!important;opacity:1!important;transform:none!important}
  .yk-btn:hover{transform:none}
}