:root{
  --paper:#f3f2eb;
  --paper-2:#ecebe3;
  --white:#fbfbf8;
  --ink:#171914;
  --ink-soft:#63655e;
  --line:#d4d4ca;
  --blue:#0c78bf;
  --leaf:#72835a;
  --night:#1c2b38;
  --max:1220px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue","Noto Sans JP","Noto Sans SC","Yu Gothic",Arial,sans-serif;
  line-height:1.9;
  letter-spacing:.015em;
  -webkit-font-smoothing:antialiased;
}
body.menu-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
.wrap{width:min(calc(100% - 54px),var(--max));margin:0 auto}
.section{padding:128px 0;border-top:1px solid var(--line)}
.section.white{background:var(--white)}
.section.dark{background:var(--night);color:#fff;border-top:0}
.eyebrow{
  margin:0 0 14px;
  color:var(--leaf);
  font-size:11px;
  line-height:1;
  font-weight:800;
  letter-spacing:.18em;
  text-transform:uppercase;
}
.section-no{
  font-size:12px;
  color:var(--leaf);
  font-weight:800;
  letter-spacing:.12em;
  margin-bottom:18px;
}
h1,h2,h3,p{margin-top:0}
h1,h2,.display,.jp-serif{
  font-family:"Yu Mincho","Hiragino Mincho ProN","Noto Serif JP","Noto Serif SC",serif;
  font-weight:500;
}
h1{
  margin-bottom:28px;
  font-size:clamp(52px,8vw,112px);
  line-height:1.03;
  letter-spacing:-.05em;
}
h2{
  margin-bottom:18px;
  font-size:clamp(38px,5.7vw,72px);
  line-height:1.18;
  letter-spacing:-.035em;
}
h3{
  margin-bottom:12px;
  font-size:22px;
  line-height:1.48;
}
p{color:var(--ink-soft);margin-bottom:0}
.dark p{color:rgba(255,255,255,.72)}
.section-head{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:80px;
  align-items:end;
  margin-bottom:70px;
}
.section-head .en-title{
  display:block;
  margin-top:10px;
  font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  font-size:clamp(18px,2vw,28px);
  line-height:1.2;
  letter-spacing:-.02em;
  color:var(--ink-soft);
}
.kicker{
  max-width:750px;
  color:var(--ink);
  font-size:clamp(18px,2.2vw,28px);
  line-height:1.6;
}
.btn{
  min-height:50px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0 24px;
  border:1px solid var(--ink);
  background:var(--ink);
  color:#fff;
  font-size:12px;
  font-weight:800;
  letter-spacing:.12em;
  transition:.2s ease;
}
.btn:hover{background:transparent;color:var(--ink)}
.btn.outline{background:transparent;color:var(--ink)}
.btn.outline:hover{background:var(--ink);color:#fff}
.btn.white{background:#fff;color:var(--night);border-color:#fff}
.btn.white:hover{background:transparent;color:#fff}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.on{opacity:1;transform:none}

/* Header */
.site-header{
  position:fixed;z-index:100;top:0;left:0;right:0;
  background:rgba(243,242,235,.92);
  border-bottom:1px solid rgba(23,25,20,.12);
  backdrop-filter:blur(15px);
}
.nav{height:82px;display:flex;align-items:center;justify-content:space-between;gap:26px}
.brand{display:flex;align-items:center;gap:14px;min-width:0}
.brand img{width:124px;height:auto}
.brand-copy{
  color:var(--ink-soft);
  font-size:10px;
  line-height:1.45;
  letter-spacing:.09em;
  text-transform:uppercase;
  white-space:nowrap
}
.nav-right{display:flex;align-items:center;gap:18px}
.nav-links{display:flex;align-items:center;gap:22px;font-size:11px;font-weight:800;letter-spacing:.08em}
.nav-links a{padding:8px 0;position:relative}
.nav-links a:after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:1px;background:var(--blue);transition:.2s}
.nav-links a:hover:after{right:0}
.lang{position:relative}
.lang button{
  height:38px;padding:0 12px;border:1px solid var(--line);background:transparent;
  color:var(--ink);font-size:11px;font-weight:800;letter-spacing:.06em
}
.lang-menu{
  display:none;position:absolute;right:0;top:45px;min-width:150px;
  background:var(--white);border:1px solid var(--line);box-shadow:0 12px 32px rgba(0,0,0,.08)
}
.lang.open .lang-menu{display:block}
.lang-menu a{display:block;padding:10px 14px;font-size:12px;border-bottom:1px solid var(--line)}
.lang-menu a:last-child{border-bottom:0}
.menu-btn{display:none;width:42px;height:42px;background:transparent;border:1px solid var(--line);font-size:20px}

/* Hero */
.hero{
  min-height:100vh;
  padding:150px 0 0;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  overflow:hidden
}
.hero-main{
  width:min(calc(100% - 54px),var(--max));
  margin:0 auto;
  display:grid;
  grid-template-columns:1.17fr .83fr;
  gap:76px;
  align-items:end;
  padding:30px 0 78px
}
.hero-logo{width:min(550px,92%);margin-bottom:40px}
.hero h1 span{display:block}
.hero h1 .accent{color:var(--blue)}
.hero .hero-en{
  display:block;
  margin:22px 0 0;
  font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  font-size:clamp(22px,3vw,38px);
  line-height:1.2;
  color:var(--ink-soft);
  letter-spacing:-.035em
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}
.hero-side{
  padding:0 0 9px 0
}
.hero-side .manifesto{
  margin-bottom:32px;
  color:var(--ink);
  font-size:clamp(25px,3.5vw,48px);
  line-height:1.25;
  letter-spacing:-.04em
}
.hero-side p{max-width:540px}
.hero-list{list-style:none;padding:0;margin:36px 0 0;border-top:1px solid var(--ink)}
.hero-list li{
  display:grid;grid-template-columns:44px 1fr auto;gap:12px;align-items:center;
  padding:13px 0;border-bottom:1px solid var(--line);font-size:12px
}
.hero-list .idx{color:var(--leaf)}
.hero-list span:last-child{color:var(--ink-soft)}

.latest-bar{
  border-top:1px solid var(--ink);
  background:var(--white);
}
.latest-inner{
  width:min(calc(100% - 54px),var(--max));
  margin:0 auto;
  min-height:74px;
  display:grid;
  grid-template-columns:160px 130px 1fr auto;
  align-items:center;
  gap:20px;
  font-size:12px
}
.latest-label{font-weight:900;color:var(--blue);letter-spacing:.14em}
.latest-date{color:var(--ink-soft)}
.latest-title{font-weight:700}
.latest-arrow{font-size:18px;color:var(--blue)}

/* Mission */
.mission-copy{
  display:grid;grid-template-columns:1.1fr .9fr;gap:86px;align-items:start
}
.mission-phrase{
  color:var(--ink);
  font-size:clamp(30px,4.4vw,58px);
  line-height:1.42;
  letter-spacing:-.035em
}
.mission-side{
  padding-top:12px
}
.wordmark-meaning{
  margin-top:44px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--ink);
  border-bottom:1px solid var(--ink)
}
.wordmark-meaning div{padding:22px 15px;border-right:1px solid var(--line)}
.wordmark-meaning div:last-child{border-right:0}
.wordmark-meaning b{display:block;font-size:30px;color:var(--blue);line-height:1}
.wordmark-meaning small{display:block;margin-top:10px;color:var(--ink-soft)}

/* Challenge */
.challenge-intro{
  max-width:850px;
  margin-bottom:50px;
  font-size:clamp(20px,2.3vw,30px);
  color:var(--ink);
  line-height:1.7
}
.challenge-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--ink);
  border-bottom:1px solid var(--ink)
}
.challenge{
  min-height:330px;
  padding:30px 28px 34px;
  border-right:1px solid var(--line);
  position:relative
}
.challenge:last-child{border-right:0}
.challenge .n{font-size:12px;color:var(--leaf);font-weight:800;margin-bottom:64px}
.challenge h3{font-family:"Yu Mincho","Hiragino Mincho ProN","Noto Serif JP",serif;font-size:27px;font-weight:500}
.challenge .en{display:block;color:var(--ink-soft);font-size:12px;margin-top:5px;letter-spacing:.03em}
.challenge .line{width:38px;height:2px;background:var(--blue);margin:24px 0}

/* Solution */
.solution-hero{
  display:grid;
  grid-template-columns:1fr 1fr;
  min-height:560px;
  background:var(--night);
  color:#fff
}
.solution-copy{
  padding:70px;
  display:flex;
  flex-direction:column;
  justify-content:space-between
}
.solution-copy h2{color:#fff}
.solution-copy .en-title{color:rgba(255,255,255,.55)}
.solution-visual{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(circle at 25% 30%, rgba(12,120,191,.85) 0 8%, transparent 9%),
    radial-gradient(circle at 70% 64%, rgba(114,131,90,.8) 0 12%, transparent 13%),
    linear-gradient(140deg,#24384a 0 45%,#18242f 45% 100%)
}
.solution-visual:before,
.solution-visual:after{
  content:"";position:absolute;border:1px solid rgba(255,255,255,.22);border-radius:50%
}
.solution-visual:before{width:360px;height:360px;left:12%;top:12%}
.solution-visual:after{width:520px;height:520px;right:-20%;bottom:-24%}
.solution-word{
  position:absolute;left:10%;bottom:10%;right:8%;
  font-family:"Helvetica Neue",Arial,sans-serif;
  font-size:clamp(45px,7vw,96px);
  line-height:.9;
  font-weight:200;
  letter-spacing:-.06em;
  color:#fff
}
.flow{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  border-top:1px solid rgba(255,255,255,.35);
  margin-top:55px
}
.flow-item{
  padding:22px 14px 0 0;
  border-right:1px solid rgba(255,255,255,.2)
}
.flow-item:last-child{border-right:0}
.flow-item .n{font-size:10px;color:#a9c68b}
.flow-item strong{display:block;margin-top:14px;color:#fff;font-size:14px;line-height:1.55}

/* Services */
.service-grid{
  display:grid;grid-template-columns:repeat(2,1fr);
  border-top:1px solid var(--ink);border-left:1px solid var(--line)
}
.service-card{
  min-height:390px;
  padding:34px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:transparent;
  transition:.2s ease
}
.service-card:hover{background:var(--white)}
.card-index{font-size:11px;color:var(--leaf);letter-spacing:.14em;margin-bottom:38px}
.service-card h3{font-family:"Yu Mincho","Hiragino Mincho ProN","Noto Serif JP",serif;font-size:28px;font-weight:500}
.service-card ul{padding-left:18px;color:var(--ink-soft);margin:18px 0 0}
.service-card .outcome{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;font-weight:750;color:var(--ink)}

/* Industries */
.industry-list{border-top:1px solid var(--ink)}
.industry-row{
  display:grid;grid-template-columns:78px 1fr auto;align-items:center;gap:20px;
  border-bottom:1px solid var(--line);padding:26px 0
}
.industry-row .n{font-size:11px;color:var(--leaf)}
.industry-row strong{
  font-family:"Yu Mincho","Hiragino Mincho ProN","Noto Serif JP",serif;
  font-size:clamp(22px,3vw,38px);font-weight:500;letter-spacing:-.02em
}
.industry-row .arrow{font-size:21px;color:var(--blue)}

/* strengths */
.strength-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.strength{padding:30px 24px;min-height:285px;border-right:1px solid var(--line)}
.strength:last-child{border-right:0}
.strength .mark{color:var(--blue);font-size:30px;font-weight:300}
.strength strong{display:block;margin:52px 0 12px;font-size:17px}

/* process */
.process{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.step{padding:28px 18px 34px;min-height:235px;border-right:1px solid var(--line)}
.step:last-child{border-right:0}
.step .step-no{font-size:11px;color:var(--leaf);margin-bottom:60px}
.step strong{font-size:15px;line-height:1.65}

/* Cases */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case{border-top:1px solid var(--ink);padding-top:0}
.case-visual{
  aspect-ratio:4/3;
  position:relative;overflow:hidden;
  background:
    linear-gradient(135deg,rgba(12,120,191,.95) 0 27%,transparent 27%),
    linear-gradient(45deg,rgba(114,131,90,.92) 0 22%,transparent 22%),
    linear-gradient(150deg,#d9d9d0 0 55%,#a8aaa2 55% 100%)
}
.case:nth-child(2) .case-visual{
  background:
    linear-gradient(160deg,#1d2e3b 0 42%,transparent 42%),
    linear-gradient(30deg,rgba(12,120,191,.85) 0 25%,transparent 25%),
    linear-gradient(150deg,#c9c8be 0 50%,#ecebe3 50% 100%)
}
.case:nth-child(3) .case-visual{
  background:
    radial-gradient(circle at 72% 30%,rgba(114,131,90,.95) 0 15%,transparent 16%),
    linear-gradient(130deg,#d7d5ca 0 43%,#f1f0e9 43% 100%)
}
.case-visual:after{
  content:"ATOR / CASE";position:absolute;right:16px;bottom:12px;
  color:#fff;font-size:10px;font-weight:900;letter-spacing:.16em
}
.case-body{padding:25px 2px 0}
.case .sector{font-size:10px;color:var(--leaf);letter-spacing:.13em;text-transform:uppercase}
.case h3{margin-top:8px;font-family:"Yu Mincho","Hiragino Mincho ProN","Noto Serif JP",serif;font-size:25px;font-weight:500}
.case .scope{margin-top:18px;padding-top:15px;border-top:1px solid var(--line);font-size:11px;color:var(--ink);font-weight:750}

/* News */
.news-list{border-top:1px solid var(--ink)}
.news-item{
  display:grid;grid-template-columns:135px 1fr auto;gap:28px;align-items:center;
  padding:27px 4px;border-bottom:1px solid var(--line)
}
.news-date{font-size:11px;font-weight:800;color:var(--leaf)}
.news-title{font-size:15px;font-weight:700}
.news-arrow{font-size:20px;color:var(--blue)}

/* Company */
.company-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:74px;align-items:start}
.company-logo-panel{
  background:var(--white);min-height:390px;
  display:flex;align-items:center;justify-content:center;padding:50px
}
.company-logo-panel img{width:min(420px,90%)}
.company-table{border-top:1px solid var(--ink)}
.company-row{display:grid;grid-template-columns:135px 1fr;gap:24px;padding:18px 0;border-bottom:1px solid var(--line);font-size:14px}
.company-row dt{color:var(--ink-soft)}
.company-row dd{margin:0}
.leader{
  margin-top:50px;padding-top:36px;border-top:1px solid var(--ink);
  display:grid;grid-template-columns:150px 1fr;gap:28px
}
.leader-mark{
  aspect-ratio:1;background:var(--night);color:#fff;
  display:flex;align-items:flex-end;padding:17px;
  font-size:14px;font-weight:900;letter-spacing:.1em
}
.leader .role{font-size:10px;color:var(--leaf);letter-spacing:.1em;text-transform:uppercase}
.leader .name{font-family:"Yu Mincho","Hiragino Mincho ProN","Noto Serif JP",serif;font-size:25px;margin:4px 0 14px}

/* Vision */
.vision-statement{
  max-width:1040px;
  color:#fff;
  font-family:"Yu Mincho","Hiragino Mincho ProN","Noto Serif JP",serif;
  font-size:clamp(38px,6vw,78px);
  line-height:1.28;
  letter-spacing:-.035em
}

/* Contact */
.contact-wrap{
  display:grid;grid-template-columns:.82fr 1.18fr;gap:80px
}
.contact-lead{
  font-family:"Yu Mincho","Hiragino Mincho ProN","Noto Serif JP",serif;
  font-size:clamp(33px,4.6vw,62px);
  line-height:1.3;
  color:var(--ink)
}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
label{font-size:11px;font-weight:800}
.req{font-size:9px;color:var(--leaf);margin-left:5px}
input,select,textarea{
  width:100%;border:0;border-bottom:1px solid var(--line);
  background:transparent;color:var(--ink);padding:12px 2px;outline:none;border-radius:0
}
input:focus,select:focus,textarea:focus{border-color:var(--blue)}
textarea{min-height:150px;resize:vertical}
.checkline{display:flex;gap:9px;align-items:flex-start;font-size:11px;color:var(--ink-soft)}
.checkline input{width:auto;margin-top:6px}
.hp{position:absolute!important;left:-99999px!important;opacity:0!important}
.form-note{font-size:10px;color:var(--ink-soft);margin-top:12px}

/* footer */
footer{padding:34px 0 46px;background:var(--paper);border-top:1px solid var(--ink);font-size:10px;color:var(--ink-soft)}
.footer-row{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.footer-links{display:flex;gap:18px}

/* Privacy + result */
.legal{padding-top:145px}
.legal-body{max-width:850px}
.legal-body h2{font-size:28px;margin-top:46px}
.result-page{min-height:100vh;display:flex;align-items:center;padding:120px 0}
.result-box{max-width:760px;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);padding:42px 0}

@media(max-width:1050px){
  .nav-links{display:none}
  .menu-btn{display:block}
  .nav-right{gap:9px}
  .nav-links.open{
    display:flex;position:fixed;top:82px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:flex-start;background:var(--paper);
    padding:34px 28px;font-size:15px;z-index:101
  }
  .hero-main,.section-head,.mission-copy,.company-layout,.contact-wrap{grid-template-columns:1fr}
  .hero-main{align-items:start}
  .solution-hero{grid-template-columns:1fr}
  .solution-visual{min-height:420px}
  .service-grid{grid-template-columns:1fr}
  .strength-grid{grid-template-columns:repeat(2,1fr)}
  .process{grid-template-columns:1fr}
  .step{min-height:auto;border-right:0;border-bottom:1px solid var(--line)}
  .step:last-child{border-bottom:0}
  .step .step-no{margin-bottom:22px}
  .case-grid{grid-template-columns:1fr}
}
@media(max-width:720px){
  .wrap,.hero-main,.latest-inner{width:min(calc(100% - 30px),var(--max))}
  .section{padding:88px 0}
  .nav{height:72px}
  .brand img{width:102px}
  .brand-copy{display:none}
  .nav-links.open{top:72px}
  .hero{padding-top:110px;min-height:auto}
  .hero-main{padding-bottom:58px;gap:42px}
  .hero-logo{margin-bottom:28px}
  .latest-inner{grid-template-columns:1fr auto;gap:4px 14px;padding:14px 0}
  .latest-label{grid-column:1/-1}
  .latest-title{grid-column:1/2}
  .latest-date{font-size:10px}
  .challenge-grid{grid-template-columns:1fr}
  .challenge{min-height:auto;border-right:0;border-bottom:1px solid var(--line)}
  .challenge:last-child{border-bottom:0}
  .challenge .n{margin-bottom:28px}
  .wordmark-meaning{grid-template-columns:repeat(2,1fr)}
  .wordmark-meaning div:nth-child(2){border-right:0}
  .wordmark-meaning div:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .solution-copy{padding:42px 26px}
  .flow{grid-template-columns:1fr}
  .flow-item{border-right:0;border-bottom:1px solid rgba(255,255,255,.2);padding:16px 0}
  .flow-item:last-child{border-bottom:0}
  .strength-grid{grid-template-columns:1fr}
  .strength{border-right:0;border-bottom:1px solid var(--line);min-height:auto}
  .strength:last-child{border-bottom:0}
  .strength strong{margin-top:30px}
  .company-row{grid-template-columns:100px 1fr}
  .leader{grid-template-columns:110px 1fr}
  .news-item{grid-template-columns:92px 1fr}
  .news-arrow{display:none}
  .contact-form{grid-template-columns:1fr}
  .field.full{grid-column:auto}
}