:root{
  --bg:#060606;
  --fg:#f4f3ee;
  --muted:#b3b2ac;
  --sub:#797973;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.16);
  --container:min(1320px, calc(100vw - 48px));
  --shadow:0 24px 80px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--fg);
  background:
    radial-gradient(circle at 0% 0%, rgba(255,255,255,.055), transparent 22%),
    radial-gradient(circle at 100% 12%, rgba(255,255,255,.03), transparent 20%),
    linear-gradient(180deg, #070707 0%, #050505 100%);
  font-family:Arial,"Helvetica Neue","Hiragino Sans","Yu Gothic",sans-serif;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  letter-spacing:.01em;
}
body::before{
  content:"";
  position:fixed; inset:0; pointer-events:none; opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.85'/%3E%3C/svg%3E");
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
.container{width:var(--container);margin:0 auto}
.section{padding:110px 0;border-bottom:1px solid var(--line)}

.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(6,6,6,.80);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{
  min-height:84px;
  display:grid;
  grid-template-columns:auto 1fr auto auto;
  align-items:center;
  gap:22px;
}
.brand img{width:142px}
.desktop-nav{
  display:flex; justify-content:center; gap:28px;
  font-size:11px; letter-spacing:.17em;
}
.header-cta{
  font-size:11px; letter-spacing:.17em;
  border:1px solid rgba(255,255,255,.16);
  border-radius:999px; padding:12px 16px;
}
.desktop-nav a,.header-cta,.mobile-nav a{transition:opacity .2s ease}
.desktop-nav a:hover,.header-cta:hover,.mobile-nav a:hover{opacity:.58}

.menu-toggle{
  display:none;
  appearance:none; border:0; background:none;
  width:42px; height:42px; padding:0;
}
.menu-toggle span{
  display:block; width:20px; height:1px; background:#fff; margin:6px auto;
}
.mobile-nav{
  display:none;
  padding:0 0 18px;
  gap:10px;
  flex-wrap:wrap;
}
.mobile-nav a{
  border:1px solid rgba(255,255,255,.12);
  padding:11px 13px;
  border-radius:999px;
  font-size:10px;
  letter-spacing:.14em;
}
.mobile-nav.is-open{display:flex}

.hero{
  min-height:calc(100vh - 84px);
  display:flex;
  align-items:center;
  padding-top:42px;
}
.hero-topline,.hero-bottomline,.panel-top{
  display:flex; align-items:center; justify-content:space-between; gap:14px;
}
.hero-topline{
  margin-bottom:42px;
  font-size:10px; letter-spacing:.22em; color:var(--sub);
}
.dot{
  width:8px; height:8px; border-radius:50%;
  background:#fff; opacity:.65;
  box-shadow:0 0 18px rgba(255,255,255,.44);
}
.hero-grid{
  display:grid; grid-template-columns:1.15fr .85fr; gap:48px; align-items:end;
}
.eyebrow{
  margin:0 0 18px;
  font-size:11px; letter-spacing:.22em; color:var(--sub);
}
h1,h2{margin:0; font-weight:700; letter-spacing:-.075em}
h1{
  font-size:clamp(66px, 9vw, 154px);
  line-height:.88;
}
h2{
  font-size:clamp(56px, 6vw, 104px);
  line-height:.92;
}
h1 span,h2 span{
  color:transparent; -webkit-text-stroke:1.2px #fff;
}
.hero-side>p{
  margin:0 0 24px;
  font-size:16px; line-height:1.95; color:var(--muted);
}
.hero-card,.feature-list,.people-card,.brands-stage,.company-card{
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,255,255,.026), rgba(255,255,255,.008));
  box-shadow:var(--shadow);
}
.hero-card{
  border-radius:24px;
  padding:22px 22px 20px;
}
.hero-card strong{
  display:block; margin-bottom:10px;
  font-size:12px; letter-spacing:.18em;
}
.hero-card p{
  margin:0; font-size:14px; line-height:1.85; color:#c9c8c2;
}
.hero-bottomline{
  margin-top:48px;
  font-size:10px; letter-spacing:.22em; color:var(--sub);
}
.hero-bottomline .line{
  flex:1; height:1px;
  background:linear-gradient(90deg, rgba(255,255,255,.18), rgba(255,255,255,.02));
}

.split-grid,.why-grid,.company-grid{
  display:grid; grid-template-columns:1fr 1fr; gap:54px; align-items:start;
}
.panel-num,.panel-tag{
  font-size:10px; letter-spacing:.2em; color:var(--sub);
}
.panel-small{
  margin:0 0 16px; font-size:15px; color:#9b9b96;
}
.panel-desc{
  margin:24px 0 0; font-size:16px; line-height:1.95; color:var(--muted); max-width:38em;
}
.feature-list{
  border-radius:28px; overflow:hidden;
}
.feature-item{
  display:grid; grid-template-columns:54px 1fr; gap:18px;
  padding:26px 24px; border-bottom:1px solid var(--line);
}
.feature-item:last-child{border-bottom:none}
.feature-item > span{
  font-size:10px; letter-spacing:.18em; color:var(--sub); padding-top:6px;
}
.feature-item h3{
  margin:0 0 8px; font-size:26px; letter-spacing:-.03em;
}
.feature-item p{
  margin:0; color:#979791; font-size:13px; line-height:1.7;
}

.people-section{background:linear-gradient(180deg, rgba(255,255,255,.015), transparent)}
.people-card{
  border-radius:32px; padding:42px 34px;
}
.people-logo{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:48px 12px;
}
.people-logo img{
  width:min(520px,100%); margin:0 auto;
}
.people-copy{
  margin:28px 0 0; font-size:28px; line-height:1.65;
}

.why-copy{
  padding:8px 0 0 28px;
  border-left:1px solid var(--line-strong);
  background:linear-gradient(90deg, rgba(255,255,255,.02), transparent);
}
.why-copy p{
  margin:0 0 24px; font-size:18px; line-height:1.95; color:var(--muted);
}
.why-copy p:last-child{margin-bottom:0}
.why-copy .strong{font-size:24px; color:#fff}

.brands-head{margin-bottom:38px}
.brands-stage{
  border-radius:32px; overflow:hidden;
}
.brand-hero{
  min-height:220px; display:flex; align-items:center; justify-content:center;
  padding:34px; border-bottom:1px solid var(--line);
}
.brand-hero img{max-height:88px}
.brand-grid{display:grid; grid-template-columns:repeat(3,1fr)}
.mini-grid{display:grid; grid-template-columns:repeat(4,1fr)}
.brand-card{
  min-height:190px;
  display:flex; align-items:center; justify-content:center;
  padding:28px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.brand-grid .brand-card:nth-child(3n){border-right:none}
.mini-grid .brand-card:nth-child(4n){border-right:none}
.brand-card img{
  max-height:70px; max-width:100%; object-fit:contain;
}
.brand-card.small{min-height:150px}
.brand-card.wide{grid-column:span 4}
.brand-card.wide img{max-height:72px}

.company-card{
  border-radius:28px; overflow:hidden;
}
.company-row{
  display:grid; grid-template-columns:150px 1fr; gap:18px;
  padding:20px 22px; border-bottom:1px solid var(--line);
}
.company-row:last-child{border-bottom:none}
.company-row span{
  font-size:10px; letter-spacing:.18em; color:var(--sub);
}
.company-row strong{
  font-size:15px; font-weight:500; line-height:1.55;
}

.cta-wrap{
  min-height:50vh; display:flex; flex-direction:column; justify-content:space-between;
}
.cta-label{
  margin:0; font-size:10px; letter-spacing:.22em; color:var(--sub);
}
.cta-bottom{
  display:flex; justify-content:space-between; gap:24px; align-items:end;
}
.cta-bottom p{
  margin:0; font-size:16px; line-height:1.9; color:var(--muted);
}
.cta-button{
  border:1px solid rgba(255,255,255,.9);
  border-radius:999px; padding:16px 22px;
  font-size:11px; letter-spacing:.18em; white-space:nowrap;
}

.site-footer{padding:26px 0 28px}
.footer-inner{
  display:flex; justify-content:space-between; align-items:flex-end; gap:20px;
  color:#666; font-size:10px; letter-spacing:.18em;
}
.footer-inner img{width:128px; opacity:.42}

@media (max-width:1100px){
  .hero-grid,.split-grid,.why-grid,.company-grid{
    grid-template-columns:1fr;
    gap:34px;
  }
  .people-copy{font-size:24px}
}

@media (max-width:860px){
  .section{padding:78px 0}
  .header-inner{
    min-height:74px;
    grid-template-columns:auto 1fr auto;
  }
  .desktop-nav,.header-cta{display:none}
  .menu-toggle{display:block; justify-self:end}
  .hero{
    min-height:auto;
    padding-top:34px;
  }
  .hero-topline{margin-bottom:28px}
  h1{font-size:15.5vw}
  h2{font-size:13vw}
  .hero-side > p,.panel-desc,.why-copy p,.cta-bottom p{font-size:14px}
  .feature-item h3{font-size:20px}
  .brand-grid{grid-template-columns:1fr 1fr}
  .brand-grid .brand-card:nth-child(3n){border-right:1px solid var(--line)}
  .brand-grid .brand-card:nth-child(2n){border-right:none}
  .mini-grid{grid-template-columns:1fr 1fr}
  .mini-grid .brand-card:nth-child(4n){border-right:1px solid var(--line)}
  .mini-grid .brand-card:nth-child(2n){border-right:none}
  .brand-card.wide{grid-column:span 2}
  .brand-card,.brand-card.small{min-height:132px}
  .company-row{grid-template-columns:100px 1fr}
  .cta-bottom{
    flex-direction:column; align-items:flex-start;
  }
}

@media (max-width:520px){
  :root{--container:min(100vw - 32px,100%)}
  .section{padding:62px 0}
  .hero{padding-top:20px}
  .hero-topline,.hero-bottomline,.panel-top,.cta-label{font-size:9px}
  .eyebrow{font-size:10px}
  h1{font-size:15.2vw}
  h2{font-size:14vw}
  .hero-card,.feature-list,.people-card,.brands-stage,.company-card{border-radius:22px}
  .hero-card{padding:18px}
  .hero-card p,.hero-side>p,.panel-desc,.why-copy p,.cta-bottom p{font-size:13px}
  .feature-item{
    grid-template-columns:34px 1fr;
    padding:18px 16px;
  }
  .feature-item h3{font-size:18px}
  .people-card{padding:22px 18px}
  .people-logo{padding:28px 4px}
  .people-copy{font-size:18px}
  .why-copy{padding:0 0 0 14px}
  .why-copy .strong{font-size:18px}
  .brand-hero{min-height:150px; padding:24px}
  .brand-hero img{max-height:56px}
  .brand-grid{grid-template-columns:1fr}
  .brand-grid .brand-card{border-right:none}
  .mini-grid{grid-template-columns:1fr 1fr}
  .brand-card,.brand-card.small{min-height:118px; padding:20px 12px}
  .company-row{
    grid-template-columns:1fr;
    gap:8px;
    padding:16px;
  }
  .cta-wrap{min-height:44vh}
  .cta-button{padding:14px 18px}
  .footer-inner{
    flex-direction:column; align-items:flex-start;
  }
}

.company-row a{
  color:inherit;
  text-decoration:none;
  transition:opacity .2s ease;
}
.company-row a:hover{
  opacity:.58;
}

/* ===== ナビ ドロップダウン（SERVICE → ケイゾク） ===== */
.desktop-nav{overflow:visible}
.nav-dd{position:relative; display:inline-flex; align-items:center}
.nav-dd-trigger{
  appearance:none; background:none; border:0; cursor:pointer;
  color:inherit; font-family:inherit; line-height:1;
  font-size:11px; letter-spacing:.17em;
  padding:0; display:inline-flex; align-items:center; gap:6px;
  transition:opacity .2s ease;
}
.nav-dd-trigger::after{content:"▾"; font-size:9px; opacity:.65; transition:transform .2s ease}
.nav-dd-trigger:hover{opacity:.58}
.nav-dd:hover .nav-dd-trigger::after,
.nav-dd.is-open .nav-dd-trigger::after{transform:rotate(180deg)}
.nav-dd-menu{
  position:absolute; top:100%; left:50%;
  transform:translateX(-50%);
  padding-top:22px;                /* 透明のブリッジ：ホバー移動で消えないように */
  opacity:0; visibility:hidden; pointer-events:none;
  transition:opacity .2s ease;
  z-index:200;
}
.nav-dd-panel{
  min-width:172px;
  background:rgba(10,10,10,.97);
  border:1px solid rgba(255,255,255,.14);
  border-radius:14px; padding:8px;
  box-shadow:0 24px 60px rgba(0,0,0,.5);
  transform:translateY(8px);
  transition:transform .2s ease;
}
.nav-dd:hover .nav-dd-menu,
.nav-dd:focus-within .nav-dd-menu,
.nav-dd.is-open .nav-dd-menu{opacity:1; visibility:visible; pointer-events:auto}
.nav-dd:hover .nav-dd-panel,
.nav-dd:focus-within .nav-dd-panel,
.nav-dd.is-open .nav-dd-panel{transform:translateY(0)}
.nav-dd-panel a{
  display:block; padding:12px 14px; border-radius:9px;
  font-size:12px; letter-spacing:.06em; color:var(--fg);
  white-space:nowrap; transition:background .2s ease;
}
.nav-dd-panel a:hover{background:rgba(255,255,255,.08)}

/* モバイル：タップで開閉 */
.m-dd{display:inline-flex; flex-wrap:wrap; gap:10px; align-items:center}
.m-dd-trigger{
  appearance:none; cursor:pointer;
  border:1px solid rgba(255,255,255,.12); background:none;
  color:inherit; font-family:inherit;
  padding:11px 13px; border-radius:999px;
  font-size:10px; letter-spacing:.14em;
  display:inline-flex; align-items:center; gap:6px;
}
.m-dd-trigger::after{content:"▾"; font-size:8px; opacity:.7; transition:transform .2s ease}
.m-dd.is-open .m-dd-trigger::after{transform:rotate(180deg)}
.m-dd-link{display:none}
.m-dd.is-open .m-dd-link{
  display:inline-block;
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.22);
}