:root{
  --navy:#0d223d;
  --navy-2:#173453;
  --silver:#b9bdc5;
  --silver-light:#eef0f3;
  --ink:#162235;
  --muted:#5f6874;
  --white:#ffffff;
  --line:#d9dde3;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:#fff;
  font-family:"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;
  line-height:1.8;
  letter-spacing:.03em;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(calc(100% - 40px),var(--max));margin:auto}
.section{padding:96px 0}
.section--soft{background:linear-gradient(135deg,#f8f9fb,#eef1f5)}
.eyebrow{
  font-family:Georgia,"Times New Roman",serif;
  letter-spacing:.12em;
  font-size:.82rem;
  color:var(--navy-2);
  margin:0 0 8px;
}
h1,h2,h3{
  font-family:"Yu Mincho","Hiragino Mincho ProN",Georgia,serif;
  font-weight:500;
  letter-spacing:.04em;
  line-height:1.45;
}
h2{font-size:clamp(2rem,4vw,3rem);margin:0 0 24px}
p{margin:0 0 1.2em}
.header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(13,34,61,.08);
}
.header-inner{
  height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px
}
.brand{display:flex;align-items:center;gap:14px}
.brand-mark{
  width:48px;height:48px;position:relative;display:grid;place-items:center;
}
.brand-mark::before,.brand-mark::after{
  content:"";position:absolute;border-radius:50% 10% 50% 10%;
  background:linear-gradient(135deg,#f7f7f7 0%,#9ea4ad 50%,#4e5560 100%);
  transform:rotate(-25deg);
}
.brand-mark::before{width:42px;height:14px;top:7px;left:3px}
.brand-mark::after{width:16px;height:38px;bottom:2px;right:12px}
.brand-name{font-family:Georgia,"Times New Roman",serif;font-size:1.55rem;letter-spacing:.12em}
.brand-sub{font-size:.72rem;margin-top:-3px}
.nav{display:flex;align-items:center;gap:34px;font-family:Georgia,"Times New Roman",serif;font-size:.85rem}
.nav a span{display:block;font-family:"Noto Sans JP",sans-serif;font-size:.66rem;text-align:center}
.contact-btn,.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:12px;
  min-height:50px;padding:0 30px;background:var(--navy);color:#fff;
  border:1px solid var(--navy);transition:.25s ease;
}
.contact-btn:hover,.btn:hover{background:#fff;color:var(--navy)}
.btn--light{background:#fff;color:var(--navy);border-color:var(--line)}
.btn--light:hover{background:var(--navy);color:#fff}
.menu-btn{display:none;border:0;background:transparent;font-size:1.7rem}

.hero{
  min-height:680px;
  background:
    linear-gradient(90deg,rgba(255,255,255,.98) 0%,rgba(255,255,255,.94) 42%,rgba(255,255,255,.18) 70%),
    radial-gradient(circle at 80% 35%,rgba(13,34,61,.16),transparent 32%),
    linear-gradient(135deg,#f6f7f9,#cfd6df);
  position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-6%;top:0;width:56%;height:100%;
  background:
    linear-gradient(120deg,transparent 0 40%,rgba(255,255,255,.45) 40% 42%,transparent 42%),
    repeating-linear-gradient(90deg,transparent 0 72px,rgba(13,34,61,.04) 72px 73px);
  transform:skewX(-6deg);
}
.hero-inner{min-height:680px;display:flex;align-items:center;position:relative;z-index:2}
.hero-copy{max-width:680px}
.hero h1{font-size:clamp(2.55rem,5.2vw,4.7rem);margin:0 0 28px}
.hero p{font-size:1.05rem;max-width:600px;color:#364354}
.hero-actions{margin-top:34px;display:flex;gap:16px;flex-wrap:wrap}

.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.visual{
  min-height:390px;position:relative;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(13,34,61,.04),rgba(13,34,61,.18)),
    linear-gradient(135deg,#cfd9e4,#6e879f);
}
.visual::before{
  content:"";position:absolute;inset:14% 10%;
  background:
    linear-gradient(90deg,transparent 0 7%,rgba(255,255,255,.75) 7% 10%,transparent 10% 28%,rgba(255,255,255,.55) 28% 31%,transparent 31% 58%,rgba(255,255,255,.65) 58% 62%,transparent 62%),
    linear-gradient(0deg,#294864 0 18%,transparent 18%);
  clip-path:polygon(0 100%,0 46%,8% 46%,8% 24%,18% 24%,18% 52%,28% 52%,28% 35%,39% 35%,39% 18%,48% 18%,48% 60%,62% 60%,62% 30%,74% 30%,74% 48%,84% 48%,84% 12%,94% 12%,94% 100%);
  opacity:.75;
}
.service-card{
  max-width:760px;border:1px solid var(--line);background:#fff;
  padding:36px;display:grid;grid-template-columns:180px 1fr;gap:36px;
  box-shadow:0 12px 40px rgba(19,35,55,.06);
}
.mcp-logo{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  border-right:1px solid var(--line);min-height:170px;
  font-family:Georgia,"Times New Roman",serif;color:#9a9ea5;
}
.mcp-logo strong{font-size:3.7rem;font-weight:400;line-height:1}
.mcp-logo span{font-size:.72rem;letter-spacing:.08em}
.service-card h3{font-size:1.55rem;margin:0 0 8px}
.text-link{display:inline-flex;gap:14px;align-items:center;border-bottom:1px solid #9ba3ad;padding-bottom:4px}
.reasons{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:48px}
.reason{padding:10px 34px;border-right:1px solid var(--line)}
.reason:last-child{border-right:0}
.reason-icon{font-size:2rem;margin-bottom:12px}
.reason h3{font-size:1.25rem;margin:0 0 8px}
.news-list{max-width:900px;margin:32px auto}
.news-item{
  display:grid;grid-template-columns:140px 120px 1fr;gap:18px;
  padding:16px 0;border-bottom:1px solid var(--line);align-items:center
}
.badge{font-size:.72rem;text-align:center;background:#d6d9df;padding:3px 10px}
.cta{
  padding:58px 0;text-align:center;
  background:
    linear-gradient(135deg,rgba(255,255,255,.82),rgba(202,209,220,.9)),
    repeating-linear-gradient(115deg,transparent 0 110px,rgba(255,255,255,.25) 110px 112px);
}
.footer{background:var(--navy);color:#fff;padding:48px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:34px}
.footer h4{font-family:Georgia,serif;letter-spacing:.08em;margin:0 0 8px}
.footer a{color:#dfe6ee;font-size:.86rem}
.copyright{border-top:1px solid rgba(255,255,255,.2);margin-top:32px;padding-top:18px;text-align:center;font-size:.75rem;color:#c9d2dd}
.page-hero{padding:110px 0 70px;background:linear-gradient(135deg,#f7f8fa,#e3e7ec)}
.page-hero h1{font-size:clamp(2.6rem,5vw,4.2rem);margin:0}
.content-grid{display:grid;grid-template-columns:280px 1fr;gap:70px}
.side-title{position:sticky;top:120px;height:max-content}
.info-table{width:100%;border-collapse:collapse}
.info-table th,.info-table td{padding:18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.info-table th{width:30%;font-weight:500}
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{border:1px solid var(--line);padding:28px;background:#fff}
.card h3{margin-top:0}
.form{display:grid;gap:18px;max-width:760px}
.form label{font-weight:600}
.form input,.form textarea,.form select{
  width:100%;padding:14px;border:1px solid var(--line);font:inherit;background:#fff
}
.form textarea{min-height:180px}
.note{font-size:.9rem;color:var(--muted);padding:16px;background:#f5f6f8;border-left:4px solid var(--silver)}

@media(max-width:900px){
  .nav{display:none;position:absolute;top:82px;left:0;right:0;background:#fff;padding:24px;flex-direction:column;gap:18px;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .menu-btn{display:block}
  .header .contact-btn{display:none}
  .hero,.hero-inner{min-height:580px}
  .hero::after{opacity:.3}
  .split,.content-grid{grid-template-columns:1fr;gap:38px}
  .service-card{grid-template-columns:1fr}
  .mcp-logo{border-right:0;border-bottom:1px solid var(--line);padding-bottom:26px}
  .reasons{grid-template-columns:1fr}
  .reason{border-right:0;border-bottom:1px solid var(--line);padding:24px 0}
  .news-item{grid-template-columns:100px 1fr}
  .news-item .badge{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cards{grid-template-columns:1fr}
}
@media(max-width:560px){
  .container{width:min(calc(100% - 28px),var(--max))}
  .section{padding:68px 0}
  .header-inner{height:72px}
  .brand-mark{width:38px;height:38px}
  .brand-name{font-size:1.18rem}
  .hero h1{font-size:2.45rem}
  .footer-grid{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr}
}


/* v2 refinements */
body{overflow-x:hidden}
.skip-link{
  position:absolute;left:-9999px;top:auto;
}
.skip-link:focus{
  left:16px;top:16px;z-index:1000;background:#fff;color:var(--navy);
  padding:10px 14px;border:1px solid var(--navy)
}
.hero-v2{
  position:relative;
  min-height:720px;
  display:flex;
  align-items:center;
  overflow:hidden;
  background:
    linear-gradient(90deg,rgba(255,255,255,.98) 0%,rgba(255,255,255,.94) 42%,rgba(255,255,255,.35) 66%,rgba(255,255,255,.08) 100%),
    linear-gradient(135deg,#f8f9fb 0%,#e3e8ee 46%,#bcc7d3 100%);
}
.hero-v2::before{
  content:"";
  position:absolute;inset:0 0 0 48%;
  background:
    radial-gradient(circle at 72% 35%,rgba(255,255,255,.85) 0 7%,transparent 8%),
    linear-gradient(145deg,transparent 0 22%,rgba(13,34,61,.10) 22% 24%,transparent 24% 38%,rgba(13,34,61,.08) 38% 40%,transparent 40%),
    linear-gradient(180deg,transparent 0 63%,rgba(13,34,61,.11) 63% 65%,transparent 65%);
  opacity:.9
}
.hero-v2::after{
  content:"";
  position:absolute;right:5%;bottom:0;width:42%;height:70%;
  background:
    linear-gradient(135deg,rgba(13,34,61,.88),rgba(41,72,100,.6));
  clip-path:polygon(14% 100%,14% 35%,25% 35%,25% 18%,39% 18%,39% 55%,51% 55%,51% 28%,63% 28%,63% 8%,76% 8%,76% 47%,88% 47%,88% 24%,100% 24%,100% 100%);
  opacity:.22
}
.hero-v2 .hero-inner{min-height:720px}
.hero-v2 .hero-copy{max-width:720px}
.hero-lead{
  font-size:1.08rem;
  max-width:620px;
  color:#344253;
  margin-bottom:0;
}
.hero-label{
  display:inline-flex;align-items:center;gap:10px;
  font-family:Georgia,"Times New Roman",serif;
  font-size:.78rem;letter-spacing:.16em;
  color:var(--navy-2);margin-bottom:18px
}
.hero-label::before{content:"";width:42px;height:1px;background:var(--silver)}
.hero-note{
  margin-top:18px;font-size:.82rem;color:#6c7480
}
.section-heading{max-width:720px;margin-bottom:42px}
.section-heading.center{margin-inline:auto;text-align:center}
.service-card--feature{
  max-width:none;
  grid-template-columns:220px 1fr 160px;
  align-items:center
}
.service-card--feature .service-action{
  display:flex;align-items:center;justify-content:flex-end
}
.metric-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-top:42px
}
.metric{
  padding:24px 28px;border-right:1px solid var(--line)
}
.metric:last-child{border-right:0}
.metric strong{
  display:block;font-family:Georgia,serif;font-size:1.7rem;font-weight:400;color:var(--navy)
}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-visible{opacity:1;transform:none}
@media(max-width:900px){
  .hero-v2,.hero-v2 .hero-inner{min-height:620px}
  .hero-v2::before{inset:0 0 0 28%;opacity:.55}
  .hero-v2::after{width:70%;opacity:.12}
  .service-card--feature{grid-template-columns:1fr}
  .service-card--feature .service-action{justify-content:flex-start}
  .metric-strip{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:0}
}


/* v3 official logo integration */
.brand--image{
  display:flex;
  align-items:center;
  min-width:0;
}
.brand--image img{
  display:block;
  width:210px;
  height:auto;
  object-fit:contain;
}
.header .brand--image img{
  max-height:58px;
}
.footer-logo img{
  width:220px;
  opacity:.98;
}
.hero-watermark{
  position:absolute;
  right:3%;
  top:50%;
  transform:translateY(-50%);
  width:min(34vw,430px);
  opacity:.075;
  filter:grayscale(1);
  z-index:1;
  pointer-events:none;
}
.hero-v2 .hero-copy{
  position:relative;
  z-index:2;
}
@media(max-width:900px){
  .brand--image img{width:170px}
  .header .brand--image img{max-height:48px}
  .hero-watermark{
    width:68vw;
    right:-12%;
    opacity:.05;
  }
}
@media(max-width:560px){
  .brand--image img{width:145px}
  .header .brand--image img{max-height:42px}
  .footer-logo img{width:180px}
}


/* v4 footer fix and company details */
.footer{
  overflow:hidden;
}
.footer-grid{
  align-items:start;
}
.footer-grid > div:first-child{
  min-width:250px;
}
.footer-logo{
  display:inline-flex;
  max-width:230px;
  margin-bottom:18px;
}
.footer-logo img{
  display:block;
  max-width:100%;
  height:auto;
}
.footer-company{
  color:#cbd4df;
  font-size:.78rem;
  line-height:1.75;
}
.footer-company p{
  margin:0 0 9px;
}
.footer h4{
  color:#fff;
}
.footer a:hover{
  color:#fff;
  text-decoration:underline;
  text-underline-offset:4px;
}
@media(max-width:900px){
  .footer-grid{
    grid-template-columns:minmax(230px,1.2fr) 1fr 1fr;
  }
}
@media(max-width:700px){
  .footer-grid{
    grid-template-columns:1fr 1fr;
  }
  .footer-grid > div:first-child{
    grid-column:1 / -1;
  }
}
@media(max-width:480px){
  .footer-grid{
    grid-template-columns:1fr;
  }
  .footer-grid > div:first-child{
    grid-column:auto;
  }
}

.visual--crane{
  background:radial-gradient(circle at 72% 30%,rgba(255,255,255,.92) 0 9%,transparent 10%),linear-gradient(135deg,#f1f3f6,#c8ced6);
}
.visual--crane::before{
  content:"";position:absolute;inset:16%;background:linear-gradient(135deg,#a8adb5,#606873);
  clip-path:polygon(8% 49%,40% 40%,52% 8%,61% 42%,92% 31%,68% 55%,88% 86%,53% 66%,28% 89%,40% 57%);opacity:.78;
}
.visual--crane::after{
  content:"";position:absolute;left:10%;right:10%;bottom:12%;height:1px;background:linear-gradient(90deg,transparent,var(--silver),transparent);
}

.honeypot{
  position:absolute!important;
  left:-9999px!important;
  width:1px!important;
  height:1px!important;
  overflow:hidden!important;
}
.privacy-check{
  display:flex!important;
  align-items:flex-start;
  gap:10px;
  font-weight:400!important;
}
.privacy-check input{
  width:auto!important;
  margin-top:.55em;
}
.privacy-check a{
  text-decoration:underline;
  text-underline-offset:3px;
}