:root{
  --ink:#14181f;
  --muted:#667085;
  --line:#e8ebf0;
  --bg:#ffffff;
  --soft:#f6f7f9;
  --accent:#1b7fd1;
  --warm:#f08a24;
  --grad:linear-gradient(90deg,#1b7fd1,#f08a24);
  --radius:18px;
  --gutter:clamp(20px,5vw,48px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:var(--bg);line-height:1.9;letter-spacing:.02em;
  font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic Medium","Yu Gothic","Meiryo",sans-serif;
  -webkit-text-size-adjust:100%;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.wrap{max-width:1040px;margin:0 auto;padding:0 var(--gutter)}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.9);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px)}
.site-header::after{content:"";display:block;height:2px;background:var(--grad);opacity:.85}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand img{height:26px;width:auto}
.nav ul{display:flex;gap:30px;list-style:none;margin:0;padding:0}
.nav a{position:relative;display:block;padding:6px 0;text-decoration:none;font-size:.88rem;font-weight:600;color:var(--muted);transition:color .2s}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav a:hover{color:var(--ink)}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.nav a[aria-current="page"]{color:var(--ink)}
.menu-btn{display:none;width:44px;height:44px;background:none;border:0;border-radius:10px;cursor:pointer;position:relative}
.menu-btn span{position:absolute;left:11px;right:11px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s,opacity .2s}
.menu-btn span:nth-child(1){top:16px}.menu-btn span:nth-child(2){top:21px}.menu-btn span:nth-child(3){top:26px}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* hero */
.hero{padding:clamp(20px,4vw,40px) 0 0}
.hero-img{border-radius:var(--radius);overflow:hidden;box-shadow:0 20px 50px -24px rgba(20,24,31,.35)}
.hero-img img{width:100%;aspect-ratio:950/250;object-fit:cover}
.hero-copy{text-align:center;padding:clamp(44px,8vw,88px) 0 clamp(8px,2vw,20px)}
.hero-copy h1{font-size:clamp(1.55rem,4.6vw,2.7rem);font-weight:800;letter-spacing:.04em;line-height:1.45;margin:0 0 .7em}
.hero-copy .lead{margin:0 auto}

/* sections */
section{padding:clamp(56px,9vw,104px) 0}
section.soft{background:var(--soft)}
.eyebrow{display:inline-block;font-size:.72rem;letter-spacing:.28em;font-weight:700;color:var(--warm);text-transform:uppercase;margin:0 0 10px}
h1,h2,h3{line-height:1.5;margin:0 0 .6em}
h2{font-size:clamp(1.4rem,3.2vw,1.9rem);font-weight:800;letter-spacing:.04em}
h3{font-size:1.05rem;font-weight:700}
.lead{color:var(--muted);max-width:42em}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px;counter-reset:c}
.card{counter-increment:c;background:#fff;border-radius:var(--radius);padding:34px 28px 28px;display:flex;flex-direction:column;box-shadow:0 1px 0 var(--line),0 12px 30px -22px rgba(20,24,31,.3);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:0 1px 0 var(--line),0 22px 40px -22px rgba(20,24,31,.35)}
.card::before{content:"0" counter(c);font-size:.8rem;font-weight:800;letter-spacing:.2em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:14px}
.card p{color:var(--muted);margin:0 0 20px;flex:1;font-size:.95rem}
.more{font-weight:700;font-size:.9rem;text-decoration:none}
.more::after{content:" →";transition:margin .2s}
.more:hover::after{margin-left:4px}

.note{border-left:3px solid var(--warm);background:var(--soft);padding:18px 24px;margin-top:36px;border-radius:0 12px 12px 0;color:var(--muted)}

/* page title */
.page-title{padding:clamp(44px,7vw,84px) 0 clamp(8px,2vw,16px)}
.crumb{font-size:.78rem;color:var(--muted);margin-bottom:22px}
.crumb a{text-decoration:none}
.crumb a:hover{text-decoration:underline}
.page-title h1{font-size:clamp(1.7rem,4.6vw,2.6rem);font-weight:800;letter-spacing:.04em;margin:0}
.page-title h1::after{content:"";display:block;width:56px;height:3px;background:var(--grad);margin-top:22px;border-radius:3px}
.page-title + section{padding-top:clamp(32px,5vw,56px)}

/* panels */
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:36px}
.panel{background:var(--soft);border-radius:var(--radius);padding:30px 28px}
.panel p{margin:0;color:var(--muted)}
.checks{list-style:none;padding:0;margin:14px 0 0}
.checks li{padding-left:1.7em;position:relative;margin:.5em 0;color:var(--muted)}
.checks li::before{content:"";position:absolute;left:.1em;top:.78em;width:.7em;height:.35em;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg) translateY(-50%)}
.flow{counter-reset:s;list-style:none;padding:0;margin:36px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.flow li{counter-increment:s;position:relative;padding-top:18px;border-top:2px solid var(--line)}
.flow li::before{content:"0" counter(s);display:block;font-size:1.6rem;font-weight:800;line-height:1;margin-bottom:12px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.flow strong{display:block;margin-bottom:4px}
.flow span{color:var(--muted);font-size:.9rem;display:block;line-height:1.8}
.sub-h{margin-top:clamp(48px,8vw,80px)}

/* company */
.dl{margin:0;border-top:1px solid var(--ink)}
.dl div{display:grid;grid-template-columns:200px 1fr;gap:24px;padding:26px 4px;border-bottom:1px solid var(--line)}
.dl dt{font-weight:700;font-size:.92rem}
.dl dd{margin:0;color:var(--muted)}
.dl dd strong{color:var(--ink);display:block;margin-top:.6em}
.dl dd strong:first-child{margin-top:0}
.dl ul{margin:.2em 0 0;padding-left:1.2em}
.dl .motto{margin:0;padding:0;list-style:none}
.motto li{padding:2px 0;color:var(--ink)}

/* footer */
.site-footer{background:var(--ink);color:#aab3c0;padding:56px 0 28px;font-size:.88rem}
.foot{display:flex;justify-content:space-between;align-items:flex-start;gap:32px;flex-wrap:wrap}
.foot img{height:24px;width:auto;filter:brightness(0) invert(1);margin-bottom:14px}
.foot ul{list-style:none;margin:0;padding:0;display:flex;gap:26px;flex-wrap:wrap}
.foot a{text-decoration:none;color:#e6eaf0}
.foot a:hover{text-decoration:underline}
.copy{margin-top:40px;padding-top:20px;border-top:1px solid #2a323e;font-size:.76rem;color:#7d8896}
.pagetop{position:fixed;right:18px;bottom:18px;background:#fff;color:var(--ink);border-radius:50%;width:44px;height:44px;display:grid;place-items:center;text-decoration:none;box-shadow:0 8px 24px -8px rgba(20,24,31,.4);opacity:0;pointer-events:none;transition:opacity .25s}
.pagetop.show{opacity:1;pointer-events:auto}

/* reveal */
.rv{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

@media (max-width:860px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);padding:8px var(--gutter) 18px}
  .nav.open{display:block}
  .nav ul{flex-direction:column;gap:0}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line);font-size:.95rem}
  .nav a::after{display:none}
  .nav a[aria-current="page"]{color:var(--accent)}
  .cards,.grid2{grid-template-columns:1fr}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px 20px}
  .dl div{grid-template-columns:1fr;gap:6px;padding:22px 0}
  .hero-img{border-radius:12px}
  .hero-img img{aspect-ratio:950/300}
}
@media (max-width:480px){
  .flow{grid-template-columns:1fr}
  .foot ul{gap:14px 20px}
}