:root{
  --ink:#111827;
  --muted:#667085;
  --line:#e8e9ec;
  --paper:#ffffff;
  --soft:#f6f6f3;
  --accent:#c66b23;
  --accent-dark:#9a4f18;
  --dark:#0d121b;
  --max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:var(--paper);
  font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic","Meiryo",sans-serif;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(calc(100% - 48px),var(--max));margin-inline:auto}

.site-header{
  position:fixed;inset:0 0 auto 0;z-index:50;
  border-bottom:1px solid transparent;
  transition:.35s ease;
}
.site-header.scrolled{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  border-color:var(--line);
}
.header-inner{height:82px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:11px}
.brand-logo{display:block;width:auto;height:54px;object-fit:contain}
.footer-logo{filter:brightness(0) invert(1);opacity:.94}
.brand-mark{
  width:42px;height:42px;display:grid;place-items:center;
  background:var(--accent);color:white;font-weight:800;letter-spacing:-1px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text strong{font-size:15px;letter-spacing:.03em}
.brand-text small{font-size:8px;letter-spacing:.2em;color:var(--muted);margin-top:5px}
.main-nav{display:flex;align-items:center;gap:28px;font-size:13px;font-weight:600}
.main-nav a{position:relative}
.main-nav a:not(.nav-cta)::after{
  content:"";position:absolute;left:0;bottom:-7px;width:0;height:1px;background:var(--ink);transition:.25s;
}
.main-nav a:hover::after{width:100%}
.nav-cta{padding:11px 18px;border:1px solid var(--ink)}
.menu-toggle{display:none;background:none;border:0;padding:10px}
.menu-toggle span{display:block;width:24px;height:1px;background:var(--ink);margin:6px 0}

.hero{
  min-height:100vh;position:relative;overflow:hidden;
  background:linear-gradient(135deg,#f8f8f4 0%,#fff 48%,#f1f0ea 100%);
  display:flex;align-items:center;
}
.hero-grid-bg{
  position:absolute;inset:0;opacity:.35;
  background-image:
    linear-gradient(to right,rgba(17,24,39,.05) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(17,24,39,.05) 1px,transparent 1px);
  background-size:80px 80px;
  mask-image:linear-gradient(to bottom,transparent,black 15%,black 85%,transparent);
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;
  gap:70px;padding-top:80px;
}
.eyebrow{font-size:11px;letter-spacing:.22em;font-weight:700;color:var(--accent);margin:0 0 18px}
.hero h1{
  margin:0;font-family:"Noto Serif JP","Yu Mincho","Hiragino Mincho ProN",serif;
  font-size:clamp(50px,5.6vw,78px);font-weight:600;line-height:1.2;letter-spacing:-.04em;
}
.hero-lead{max-width:620px;margin:32px 0 0;font-size:16px;color:#4b5563;line-height:2}
.hero-actions{display:flex;gap:12px;margin-top:36px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;min-height:52px;
  padding:0 25px;border:1px solid var(--ink);font-size:13px;font-weight:700;transition:.25s ease;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--accent);border-color:var(--accent)}
.btn-ghost:hover{background:var(--ink);color:white}
.btn-light{border-color:#fff;color:#fff}
.btn-light:hover{background:#fff;color:var(--dark)}

.hero-visual{position:relative;height:560px}
.building-card{
  position:absolute;border-radius:2px;
  background:linear-gradient(165deg,#2b313c,#111722);
  box-shadow:0 30px 70px rgba(17,24,39,.16);
  overflow:hidden;
}
.building-card-a{width:58%;height:74%;right:7%;top:6%;transform:skewY(-4deg)}
.building-card-b{width:48%;height:61%;left:6%;bottom:4%;background:linear-gradient(165deg,#d6d0c3,#9a9182);transform:skewY(4deg)}
.building-windows{
  position:absolute;inset:10%;
  background-image:
    linear-gradient(to right,rgba(255,255,255,.22) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.18) 1px,transparent 1px);
  background-size:34px 28px;
}
.hero-badge{
  position:absolute;left:0;bottom:12%;width:240px;background:white;padding:23px 24px;
  box-shadow:0 20px 55px rgba(17,24,39,.12);
}
.hero-badge span,.hero-badge small{display:block;font-size:9px;letter-spacing:.18em;color:var(--muted)}
.hero-badge strong{display:block;font-size:24px;margin:4px 0 8px}
.scroll-hint{
  position:absolute;left:26px;bottom:28px;font-size:9px;letter-spacing:.18em;
  writing-mode:vertical-rl;display:flex;gap:10px;align-items:center;color:var(--muted)
}

.section{padding:120px 0}
.split{display:grid;grid-template-columns:.82fr 1.18fr;gap:110px}
.section-heading h2{
  margin:0;font-family:"Noto Serif JP","Yu Mincho","Hiragino Mincho ProN",serif;
  font-size:clamp(36px,4vw,54px);line-height:1.35;font-weight:600;letter-spacing:-.03em;
}
.about-copy{font-size:15px;color:#4b5563;max-width:660px}
.about-copy p{margin:0 0 20px}
.about-copy .lead-copy{font-size:20px;color:var(--ink);font-weight:600}

.section-services{background:var(--soft)}
.section-heading.horizontal{
  display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:56px;
}
.section-heading.horizontal>p{margin:0;color:var(--muted);font-size:14px}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#dfe1e5;border:1px solid #dfe1e5}
.service-card{background:white;padding:42px;min-height:420px;position:relative}
.service-no{font-size:12px;color:var(--accent);font-weight:800;letter-spacing:.12em}
.service-card h3{font-size:26px;margin:38px 0 18px}
.service-card p{font-size:14px;color:var(--muted)}
.service-card ul{list-style:none;padding:0;margin:26px 0 0;border-top:1px solid var(--line)}
.service-card li{padding:9px 0;border-bottom:1px solid var(--line);font-size:13px}
.card-line{height:1px;background:var(--line);margin:42px 0 14px}
.card-note{font-size:9px!important;letter-spacing:.17em!important}

.values{background:white}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:55px;margin-top:66px}
.value-item{padding-top:22px;border-top:2px solid var(--ink)}
.value-item span{font-size:11px;color:var(--accent);font-weight:800}
.value-item h3{font-size:22px;margin:20px 0 13px}
.value-item p{font-size:14px;color:var(--muted);margin:0}

.overseas{padding-top:20px}
.overseas-panel{
  background:var(--dark);color:white;padding:64px 70px;
  display:flex;justify-content:space-between;align-items:center;gap:50px;
}
.overseas-panel h2{
  font-family:"Noto Serif JP","Yu Mincho",serif;font-size:42px;margin:0 0 14px
}
.overseas-panel p{margin:0;color:#c5cad2;max-width:700px}

.company-table{border-top:1px solid var(--ink)}
.company-table>div{
  display:grid;grid-template-columns:150px 1fr;gap:30px;padding:22px 0;border-bottom:1px solid var(--line)
}
.company-table span{font-size:12px;color:var(--muted)}
.company-table strong{font-size:14px;font-weight:600}

.contact{background:var(--accent);color:#fff}
.contact-inner{display:grid;grid-template-columns:.9fr 1.1fr;gap:90px;align-items:end}
.contact .eyebrow{color:#fff;opacity:.72}
.contact h2{font-family:"Noto Serif JP","Yu Mincho",serif;font-size:52px;margin:0 0 20px}
.contact p{margin:0;color:rgba(255,255,255,.8)}
.mail-link{
  border-top:1px solid rgba(255,255,255,.55);border-bottom:1px solid rgba(255,255,255,.55);
  padding:25px 0;display:grid;grid-template-columns:1fr auto auto;gap:22px;align-items:center
}
.mail-link span{font-size:13px}
.mail-link strong{font-size:22px}
.mail-link b{font-size:22px}

.site-footer{background:#0b1017;color:#d9dde4;padding:62px 0 24px}
.brand-footer .brand-text small{color:#848b96}
.site-footer p{font-size:12px;color:#9097a2;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:10px 40px;font-size:12px}
.footer-bottom{
  margin-top:58px;padding-top:20px;border-top:1px solid #222a35;
  display:flex;justify-content:space-between;font-size:10px;color:#777f89
}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

@media (max-width: 900px){
  .container{width:min(calc(100% - 36px),var(--max))}
  .main-nav{
    position:fixed;inset:82px 0 auto 0;background:white;border-bottom:1px solid var(--line);
    padding:22px 18px;display:none;flex-direction:column;align-items:stretch;gap:0
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:13px 8px;border-bottom:1px solid var(--line)}
  .nav-cta{margin-top:8px;text-align:center}
  .menu-toggle{display:block}
  .hero{min-height:auto;padding:150px 0 90px}
  .hero-inner{grid-template-columns:1fr;gap:45px;padding-top:0}
  .hero-visual{height:430px}
  .scroll-hint{display:none}
  .section{padding:84px 0}
  .split{grid-template-columns:1fr;gap:40px}
  .service-grid{grid-template-columns:1fr}
  .service-card{min-height:0}
  .value-grid{grid-template-columns:1fr;gap:35px}
  .section-heading.horizontal{display:block}
  .section-heading.horizontal>p{margin-top:18px}
  .overseas-panel{padding:48px 34px;display:block}
  .overseas-panel .btn{margin-top:28px}
  .contact-inner{grid-template-columns:1fr;gap:48px}
  .mail-link{grid-template-columns:1fr auto}
  .mail-link span{grid-column:1 / -1}
}
@media (max-width: 560px){
  .brand-logo{height:44px}
  .header-inner{height:72px}
  .main-nav{inset:72px 0 auto 0}
  .hero{padding-top:125px}
  .hero h1{font-size:43px}
  .hero-lead{font-size:14px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-visual{height:330px}
  .hero-badge{width:190px;padding:18px}
  .hero-badge strong{font-size:19px}
  .section{padding:70px 0}
  .section-heading h2{font-size:34px}
  .service-card{padding:30px 25px}
  .overseas-panel{padding:38px 25px}
  .overseas-panel h2{font-size:34px}
  .company-table>div{grid-template-columns:1fr;gap:6px}
  .contact h2{font-size:40px}
  .mail-link strong{font-size:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-links{grid-template-columns:1fr}
  .footer-bottom{display:block}
  .footer-bottom a{display:block;margin-top:12px}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none;transition:none}
}


/* Overseas investors page */
.overseas-page{padding-top:82px}
.overseas-hero{
  padding:120px 0 100px;
  background:linear-gradient(135deg,#f7f7f3 0%,#fff 55%,#eeeae3 100%);
  border-bottom:1px solid var(--line);
}
.overseas-hero-grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:90px;align-items:center
}
.overseas-hero h1{
  font-family:"Noto Serif JP","Yu Mincho","Hiragino Mincho ProN",serif;
  font-size:clamp(46px,5.5vw,72px);line-height:1.28;letter-spacing:-.035em;margin:0
}
.overseas-hero-lead{max-width:720px;color:var(--muted);margin:30px 0 0;font-size:16px;line-height:2}
.language-badges{display:flex;gap:8px;margin-top:26px}
.language-badges span{
  border:1px solid var(--line);background:white;padding:7px 12px;font-size:11px;font-weight:700;letter-spacing:.04em
}
.overseas-hero-card{
  background:var(--dark);color:white;min-height:370px;padding:40px;display:flex;flex-direction:column;justify-content:flex-end
}
.ohc-label{font-size:10px;letter-spacing:.23em;color:#aeb5c0}
.ohc-number{font-family:Georgia,serif;font-size:78px;line-height:1;margin:22px 0 18px;color:#fff}
.overseas-hero-card p{color:#c2c7cf;font-size:13px}
.ohc-line{height:1px;background:#333b47;margin:30px 0 16px}
.overseas-hero-card small{font-size:9px;letter-spacing:.17em;color:#7f8896}

.overseas-service-list{border-top:1px solid var(--ink)}
.overseas-service-row{
  display:grid;grid-template-columns:80px 1fr 130px;gap:30px;align-items:center;
  padding:32px 0;border-bottom:1px solid var(--line)
}
.overseas-service-row h3{margin:0 0 8px;font-size:22px}
.overseas-service-row p{margin:0;color:var(--muted);font-size:14px;max-width:760px}
.overseas-service-row small{text-align:right;font-size:9px;letter-spacing:.18em;color:#969da8}

.overseas-flow{background:#fff}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);margin-top:58px;border:1px solid var(--line)}
.flow-item{background:#fff;padding:32px;min-height:250px}
.flow-item span{font-size:11px;color:var(--accent);font-weight:800}
.flow-item h3{font-size:18px;margin:34px 0 12px}
.flow-item p{font-size:13px;color:var(--muted);margin:0}

.chinese-section{background:var(--soft)}
.chinese-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:100px}
.chinese-copy{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:#4b5563}
.cn-lead{font-size:20px;color:var(--ink);font-weight:700;margin-top:0}
.cn-points{margin-top:34px;border-top:1px solid var(--line)}
.cn-points>div{
  display:grid;grid-template-columns:140px 1fr;gap:24px;padding:18px 0;border-bottom:1px solid var(--line)
}
.cn-points strong{color:var(--ink)}
.cn-points span{font-size:14px}
.cn-note{font-size:12px!important;color:#7b838e!important;margin-top:25px}

.overseas-contact{background:var(--accent);color:white}
.overseas-contact-panel{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:end}
.overseas-contact .eyebrow{color:#fff;opacity:.75}
.overseas-contact h2{
  margin:0 0 14px;font-family:"Noto Serif JP","Yu Mincho",serif;font-size:44px;line-height:1.45
}
.overseas-contact p{color:rgba(255,255,255,.78)}
.light-link{border-color:rgba(255,255,255,.55)}
.contact-tel{text-align:right;font-size:13px;margin-top:14px}

@media (max-width:900px){
  .overseas-page{padding-top:72px}
  .overseas-hero{padding:90px 0 70px}
  .overseas-hero-grid{grid-template-columns:1fr;gap:45px}
  .overseas-hero-card{min-height:300px}
  .overseas-service-row{grid-template-columns:55px 1fr}
  .overseas-service-row small{display:none}
  .flow-grid{grid-template-columns:1fr 1fr}
  .chinese-grid{grid-template-columns:1fr;gap:45px}
  .overseas-contact-panel{grid-template-columns:1fr;gap:45px}
}
@media (max-width:560px){
  .overseas-hero h1{font-size:40px}
  .overseas-hero-card{padding:28px;min-height:250px}
  .ohc-number{font-size:58px}
  .overseas-service-row{grid-template-columns:1fr;gap:8px;padding:26px 0}
  .flow-grid{grid-template-columns:1fr}
  .cn-points>div{grid-template-columns:1fr;gap:4px}
  .overseas-contact h2{font-size:34px}
  .contact-tel{text-align:left}
}