@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;700&family=Noto+Serif+JP:wght@300;600&display=swap');
*{box-sizing:border-box;margin:0;padding:0;}
.demo-wrap{width:100%;min-height:520px;background:#0e1a14;position:relative;overflow:hidden;font-family:'Noto Sans JP',sans-serif;}
.demo-bg{position:absolute;inset:0;background:linear-gradient(160deg,#0e1a14 0%,#1a2e20 60%,#0b1510 100%);}
.demo-bg-text{position:absolute;bottom:-20px;right:-10px;font-family:'Noto Serif JP',serif;font-size:140px;font-weight:600;color:rgba(255,255,255,.03);line-height:1;user-select:none;letter-spacing:-.02em;}

.fs-nav-header{
  position:absolute;top:0;left:0;right:0;
  height:72px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 40px;
  z-index:300;
}
.nav-logo{
  font-family: var(--font-sans);
  font-size:16px;
  font-weight:600;
  color:black;
  line-height:1.35;
  letter-spacing:.02em;
}
.nav-logo small{
  display:block;
  font-family: var(--font-sans);
  font-size:10px;
  font-weight:300;
  color:rgba(0, 0, 0, 0.45);
  margin-top:2px;
  letter-spacing:.12em;}

.burger{
  width:48px;
  height:48px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  background:none;
  border:none;
  position:relative;
}
.burger-line{
  display:block;
  width:28px;
  height:1.5px;
  background:black;
  transform-origin:center;
  transition:transform .45s cubic-bezier(.77,0,.175,1),opacity .45s cubic-bezier(.77,0,.175,1),top .45s cubic-bezier(.77,0,.175,1);
  position:absolute;
}
.burger-line:nth-child(1){top:18px;}
.burger-line:nth-child(2){top:24px;}
.burger-line:nth-child(3){top:30px;}
.burger.is-open .burger-line:nth-child(1){top:24px;transform:rotate(45deg);background-color: white;}
.burger.is-open .burger-line:nth-child(2){opacity:0;transform:scaleX(0);background-color: white;}
.burger.is-open .burger-line:nth-child(3){top:24px;transform:rotate(-45deg);background-color: white;}

.nav-overlay{
  position:absolute;inset:0;
    background-color: rgba(98,184,80,var(--tw-bg-opacity, 1));
  z-index:200;
  display:flex;align-items:center;
  padding:0 48px;
  clip-path:polygon(0 0,100% 0,100% 0,0 0);
  transition:clip-path .7s cubic-bezier(.77,0,.175,1);
  pointer-events:none;
  height: 100svh;
}
.nav-overlay.is-open{
  clip-path:polygon(0 0,100% 0,100% 100%,0 100%);
  pointer-events:auto;
}

.nav-inner{
  width:100%;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0 60px;
  align-items:center;
}

.nav-list{list-style:none;}
.nav-list li{overflow:hidden;border-bottom:1px solid rgba(255,255,255,.08);}
.nav-list li:first-child{border-top:1px solid rgba(255,255,255,.08);}
.nav-list li a{
  display:flex;
  align-items:baseline;
  gap:20px;
  padding:20px 0;
  text-decoration:none;
  color:#fff;
  transform:translateY(40px);opacity:0;
  transition:transform .6s cubic-bezier(.77,0,.175,1),opacity .6s cubic-bezier(.77,0,.175,1);
}
.nav-overlay.is-open .nav-list li a{transform:translateY(0);opacity:1;}
.nav-list li:nth-child(1) a{transition-delay:.10s;}
.nav-list li:nth-child(2) a{transition-delay:.16s;}
.nav-list li:nth-child(3) a{transition-delay:.22s;}
.nav-list li:nth-child(4) a{transition-delay:.28s;}
.nav-list li:nth-child(5) a{transition-delay:.34s;}

.nav-num{
  font-size:11px;
  font-weight:300;
  color:rgba(255,255,255,.35);
  letter-spacing:.1em;
  min-width:28px;
}
.nav-jp{
    font-family: var(--font-sans);
  font-size:22px;font-weight:600;letter-spacing:.04em;line-height:1;}
.nav-en{font-size:11px;font-weight:300;color:rgba(255,255,255,.4);letter-spacing:.18em;margin-left:auto;align-self:center;text-transform:uppercase;}
.nav-list li a:hover .nav-jp{color:rgba(255,255,255,.6);}

.nav-deco{display:flex;flex-direction:column;align-items:flex-end;gap:32px;opacity:0;transform:translateX(20px);transition:opacity .7s ease .3s,transform .7s ease .3s;}
.nav-overlay.is-open .nav-deco{opacity:1;transform:translateX(0);}
.nav-deco-title{  font-family: var(--font-sans);font-size:72px;font-weight:300;color:rgba(255,255,255,.07);line-height:1;letter-spacing:-.02em;text-align:right;}
.nav-contact-btn{display:inline-flex;align-items:center;gap:10px;border:1px solid rgba(255,255,255,.3);border-radius:2px;padding:14px 28px;font-size:13px;font-weight:400;color:#fff;letter-spacing:.1em;text-decoration:none;cursor:pointer;background:none;font-family:'Noto Sans JP',sans-serif;transition:background .3s,border-color .3s;}
.nav-contact-btn:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.6);}
.nav-contact-btn svg{width:14px;height:14px;flex-shrink:0;}
.nav-social{display:flex;gap:20px;margin-top:8px;}
.nav-social a{font-size:11px;letter-spacing:.15em;color:rgba(255,255,255,.35);text-decoration:none;text-transform:uppercase;transition:color .3s;}
.nav-social a:hover{color:rgba(255,255,255,.8);}

.demo-content{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;color:rgba(255,255,255,.4);pointer-events:none;z-index:10;}
.demo-content p{font-size:13px;letter-spacing:.1em;font-weight:300;}