@charset "UTF-8";

:root{
  --bg:#070707;
  --bg2:#101010;
  --panel:#151515;
  --text:#f7f3ea;
  --muted:#b9b2a7;
  --line:rgba(255,255,255,.14);
  --gold:#d4af37;
  --gold2:#f3d77b;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",Meiryo,sans-serif;
  line-height:1.8;
  letter-spacing:.04em;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}

.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  height:78px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 5vw;
  background:linear-gradient(to bottom,rgba(0,0,0,.68),rgba(0,0,0,.05));
  backdrop-filter:blur(10px);
}
.brand{
  display:flex;
  align-items:center;
  gap:14px;
  font-size:15px;
  font-weight:700;
}
.brand-mark{
  width:32px;height:16px;display:inline-block;
  background:linear-gradient(135deg,var(--gold),var(--gold2));
  clip-path:polygon(0 70%,18% 70%,38% 0,56% 0,35% 70%,55% 70%,75% 0,94% 0,72% 70%,100% 70%,100% 100%,0 100%);
}
.nav{
  display:flex;
  align-items:center;
  gap:28px;
  font-size:14px;
  color:#eee;
}
.nav a{opacity:.86;transition:.25s}
.nav a:hover{opacity:1;color:var(--gold2)}
.menu-btn{display:none}

.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background:url("assets/hero.png") center center/cover no-repeat;
  transform:scale(1.02);
}
.hero-shade{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(0,0,0,.82) 0%,rgba(0,0,0,.45) 42%,rgba(0,0,0,.05) 100%),
    linear-gradient(0deg,rgba(0,0,0,.78) 0%,rgba(0,0,0,0) 42%);
}
.hero-content{
  position:relative;
  z-index:2;
  padding:0 7vw;
  max-width:880px;
}
.eyebrow{
  margin:0 0 20px;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.24em;
  font-weight:700;
}
.gold{color:var(--gold)}
h1,h2,h3,p{margin-top:0}
h1{
  font-family:"Hiragino Mincho ProN","Yu Mincho",serif;
  font-size:clamp(58px,8vw,132px);
  line-height:1.02;
  letter-spacing:.06em;
  margin-bottom:30px;
  text-shadow:0 18px 50px rgba(0,0,0,.6);
}
.hero-copy{
  font-family:"Hiragino Mincho ProN","Yu Mincho",serif;
  font-size:clamp(22px,3vw,42px);
  line-height:1.5;
  margin-bottom:34px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:180px;
  height:54px;
  border-radius:999px;
  font-weight:800;
  transition:.25s;
}
.btn.primary{
  background:linear-gradient(135deg,var(--gold),var(--gold2));
  color:#111;
}
.btn.ghost{
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
}
.btn:hover{transform:translateY(-3px)}
.scroll-sign{
  position:absolute;
  left:7vw;
  bottom:36px;
  z-index:2;
  font-size:12px;
  color:var(--muted);
  letter-spacing:.28em;
}
.scroll-sign:after{
  content:"";
  display:block;
  width:1px;height:48px;
  margin:12px 0 0 6px;
  background:linear-gradient(to bottom,var(--gold),transparent);
}

.section{
  padding:120px 7vw;
  position:relative;
}
.section-head{
  max-width:860px;
  margin-bottom:54px;
}
.section h2{
  font-family:"Hiragino Mincho ProN","Yu Mincho",serif;
  font-size:clamp(38px,5vw,76px);
  line-height:1.16;
  margin-bottom:22px;
}
.section h3{
  font-size:clamp(25px,3vw,40px);
  line-height:1.35;
}
.split{
  display:grid;
  grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);
  gap:64px;
  align-items:center;
}
.text p{color:#d7d1c8}
.small-copy{
  color:var(--gold2)!important;
  font-weight:800;
}
.image-card{
  border-radius:28px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 40px 90px rgba(0,0,0,.55);
}
.image-card img{width:100%;height:100%;object-fit:cover}

.lab-report{
  padding:70px 7vw;
  background:linear-gradient(135deg,#111,#070707);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.report-inner{
  max-width:1180px;
  margin:auto;
}
.report-inner h2{
  font-family:"Hiragino Mincho ProN","Yu Mincho",serif;
  font-size:clamp(34px,5vw,68px);
}
.report-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin:34px 0;
}
.report-grid div{
  border:1px solid var(--line);
  padding:26px;
  background:rgba(255,255,255,.035);
  border-radius:18px;
}
.report-grid span{
  display:block;
  color:var(--muted);
  font-size:13px;
}
.report-grid strong{
  display:block;
  font-size:32px;
  color:var(--gold2);
}
.note{color:var(--muted);font-size:13px}

.numbers-section{
  background:radial-gradient(circle at top right,rgba(212,175,55,.12),transparent 36%),#090909;
}
.numbers-wrap{
  border-radius:30px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 45px 120px rgba(0,0,0,.6);
}
.numbers-wrap img{width:100%}
.kpi-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:28px;
}
.kpi{
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  border-radius:20px;
  padding:26px;
}
.kpi span{
  display:block;
  font-family:"Times New Roman",serif;
  font-size:64px;
  line-height:1;
  color:var(--gold2);
}
.kpi p{margin:8px 0 0;color:#ddd}

.service{background:#0d0d0d}
.service-row{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:54px;
  align-items:center;
  padding:54px 0;
  border-top:1px solid var(--line);
}
.service-row.reverse{
  grid-template-columns:.92fr 1.08fr;
}
.service-row.reverse .service-img{order:2}
.service-img{
  border-radius:26px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 30px 80px rgba(0,0,0,.46);
}
.service-img img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.service-number{
  color:var(--gold);
  font-weight:900;
  letter-spacing:.2em;
}
.service-text p,.service-text li{color:#d8d2ca}
.service-text ul{padding-left:1.2em}
blockquote{
  margin:28px 0 0;
  padding:22px 26px;
  border-left:3px solid var(--gold);
  background:rgba(255,255,255,.045);
  font-family:"Hiragino Mincho ProN","Yu Mincho",serif;
  font-size:22px;
}

.achievements{
  min-height:440px;
  background:
    linear-gradient(rgba(0,0,0,.68),rgba(0,0,0,.85)),
    radial-gradient(circle at center,rgba(212,175,55,.12),transparent 38%);
  text-align:center;
}
.empty-works{
  display:flex;
  justify-content:center;
  gap:18px;
  flex-wrap:wrap;
}
.empty-works p{
  min-width:210px;
  padding:24px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:18px;
  font-size:24px;
  font-weight:800;
}

.message{
  display:grid;
  grid-template-columns:.95fr 1.05fr;
  gap:60px;
  align-items:center;
  background:#080808;
}
.message-img{
  border-radius:28px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 40px 110px rgba(0,0,0,.62);
}
.message-img img{width:100%;height:100%;object-fit:cover}
.position{color:var(--gold2);font-weight:900}
.big-quote{
  font-family:"Hiragino Mincho ProN","Yu Mincho",serif;
  font-size:clamp(28px,3vw,48px);
  line-height:1.35;
  color:#fff;
}
.message-text p:not(.eyebrow):not(.position):not(.big-quote){color:#d6d0c8}

.members{background:#0f0f0f}
.member-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.member-card{
  min-height:250px;
  padding:34px;
  border:1px solid var(--line);
  border-radius:24px;
  background:linear-gradient(145deg,rgba(255,255,255,.07),rgba(255,255,255,.025));
}
.member-card span{color:var(--gold)}
.member-card p{color:#d2ccc2}

.recruit{
  background:
    linear-gradient(90deg,rgba(0,0,0,.82),rgba(0,0,0,.58)),
    url("assets/hero.png") center/cover fixed;
}
.recruit-box{
  max-width:960px;
  padding:56px;
  border-radius:30px;
  background:rgba(0,0,0,.58);
  border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.recruit-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
  margin-top:30px;
}
.recruit-list div{
  padding:28px;
  border-radius:20px;
  background:rgba(255,255,255,.055);
}
.recruit li{margin-bottom:8px}

.faq{background:#080808}
.faq-list{
  max-width:980px;
}
details{
  border-top:1px solid var(--line);
  padding:24px 0;
}
details:last-child{border-bottom:1px solid var(--line)}
summary{
  cursor:pointer;
  font-size:22px;
  font-weight:800;
}
details p{
  margin:16px 0 0;
  color:var(--gold2);
  font-size:20px;
}

.final-cta{
  min-height:72vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:110px 7vw;
  background:
    linear-gradient(rgba(0,0,0,.52),rgba(0,0,0,.82)),
    url("assets/het.png") center/cover no-repeat;
}
.final-cta h2{
  font-family:"Hiragino Mincho ProN","Yu Mincho",serif;
  font-size:clamp(44px,7vw,100px);
  margin-bottom:16px;
}
.final-cta p{font-size:22px;color:#e5ded4}

.reveal{
  opacity:0;
  transform:translateY(26px);
  transition:opacity .9s ease, transform .9s ease;
}
.reveal.show{
  opacity:1;
  transform:none;
}

.sp{display:none}

@media (max-width: 900px){
  .site-header{height:68px;padding:0 22px}
  .brand span:last-child{font-size:13px}
  .menu-btn{
    display:flex;
    flex-direction:column;
    gap:6px;
    width:42px;
    height:42px;
    border:0;
    background:transparent;
    align-items:center;
    justify-content:center;
  }
  .menu-btn span{
    width:26px;height:2px;background:#fff;
    display:block;
  }
  .nav{
    position:fixed;
    top:68px;
    left:0;right:0;
    display:none;
    flex-direction:column;
    gap:0;
    background:rgba(0,0,0,.94);
    border-top:1px solid var(--line);
    padding:18px 24px 28px;
  }
  .nav.open{display:flex}
  .nav a{
    width:100%;
    padding:16px 0;
    border-bottom:1px solid var(--line);
  }
  .hero{min-height:92vh}
  .hero-content{padding:0 26px}
  .hero-shade{
    background:
      linear-gradient(90deg,rgba(0,0,0,.86),rgba(0,0,0,.36)),
      linear-gradient(0deg,rgba(0,0,0,.75),transparent);
  }
  .btn{width:100%}
  .section{padding:82px 24px}
  .split,.message,.service-row,.service-row.reverse{
    grid-template-columns:1fr;
    gap:32px;
  }
  .service-row.reverse .service-img{order:0}
  .report-grid,.kpi-grid,.member-grid,.recruit-list{
    grid-template-columns:1fr;
  }
  .report-grid strong{font-size:28px}
  .empty-works{display:grid}
  .recruit{background-attachment:scroll}
  .recruit-box{padding:30px}
  .sp{display:block}
}