/*
 * Hallmark stamp — Trust & Play
 * macrostructure: Human purpose → business → real products and work → human/AI collaboration → company
 * nav: compact wordmark + four anchors / footer: brand close
 * theme: deep navy credibility + sunrise yellow wit + crisp white evidence surfaces
 * audience: 名刺交換後に、会社の事業と信用の土台を確かめに来る取引先候補・金融機関担当者
 * pre-emit critique: trust comes from evidence, hierarchy, restraint; play is carried by the name, mark, and yellow only
 */
:root{
  --navy-950:#0d2238;
  --navy-900:#123254;
  --navy-800:#173f69;
  --navy-700:#24527d;
  --sun:#f8b83f;
  --sun-soft:#ffdda0;
  --ink:#14202c;
  --muted:#5e6a75;
  --line:#dce2e7;
  --paper:#f5f7f8;
  --white:#fff;
  --font-display:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --font-body:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --font-latin:"Manrope",sans-serif;
  --font-logo:"Zen Maru Gothic","Hiragino Maru Gothic ProN",sans-serif;
  --shell:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:clip;-webkit-text-size-adjust:100%}
body{margin:0;overflow-x:clip;background:var(--white);color:var(--ink);font-family:var(--font-body);font-size:1rem;line-height:1.9;font-feature-settings:"palt" 1;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-underline-offset:.25em;text-decoration-thickness:1px}
:focus-visible{outline:3px solid var(--sun);outline-offset:4px}
.shell{width:min(calc(100% - 3rem),var(--shell));margin-inline:auto}
.skip{position:fixed;left:1rem;top:1rem;z-index:100;background:var(--sun);color:var(--navy-950);font-weight:700;padding:.65rem 1rem;text-decoration:none;clip-path:inset(50%);width:1px;height:1px;overflow:hidden;white-space:nowrap}
.skip:focus{clip-path:none;width:auto;height:auto;overflow:visible}

/* Header */
.site-header{position:relative;z-index:10;background:var(--white);border-bottom:1px solid var(--line)}
.header-inner{min-height:88px;display:flex;align-items:center;justify-content:space-between;gap:2rem}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;white-space:nowrap}
.brand img{width:42px}
.brand span{font-family:var(--font-logo);font-size:1.05rem;font-weight:700;letter-spacing:.04em;color:var(--navy-900)}
.site-header nav{display:flex;align-items:center;gap:clamp(1rem,3vw,2.3rem);font-size:.875rem;font-weight:700;letter-spacing:.04em}
.site-header nav a{text-decoration:none;color:#33414d;padding:.5rem 0}
.site-header nav a:hover{color:var(--navy-700)}
.site-header .nav-contact{padding:.6rem 1rem;border:1px solid var(--navy-800)}

/* Hero */
.hero{position:relative;background:var(--navy-950);color:var(--white);isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(255,255,255,.035),transparent 42%);z-index:-1}
.hero-grid{min-height:700px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(340px,.9fr);gap:clamp(3rem,7vw,7rem);align-items:center;padding-block:clamp(4.5rem,9vw,8rem)}
.eyebrow,.section-label{font-family:var(--font-latin);font-size:.75rem;line-height:1.4;font-weight:800;letter-spacing:.2em;text-transform:uppercase}
.eyebrow{color:var(--sun);margin:0 0 2.25rem;font-family:var(--font-body);font-size:.875rem;letter-spacing:.1em}
.eyebrow span{color:rgba(255,255,255,.45);padding-inline:.35rem}
.hero h1{font-family:var(--font-display);font-size:clamp(3.2rem,6vw,5.9rem);font-weight:900;line-height:1.15;letter-spacing:-.045em;margin:0;max-width:8.5em}
.hero h1 small{display:block;margin-bottom:.6rem;font-family:var(--font-latin);font-size:.18em;line-height:1;font-weight:800;letter-spacing:.18em;color:rgba(255,255,255,.7)}
.hero h1 span{color:var(--sun)}
.hero-lead{max-width:42rem;margin:2.3rem 0 0;font-size:clamp(1.05rem,1.5vw,1.25rem);line-height:2;color:rgba(255,255,255,.82)}
.hero-meta{display:flex;flex-wrap:wrap;gap:.75rem 1.75rem;margin-top:2.5rem;font-family:var(--font-latin);font-size:.78rem;font-weight:700;letter-spacing:.12em;color:rgba(255,255,255,.62)}
.hero-meta span+span::before{content:"";display:inline-block;width:1.6rem;height:1px;background:rgba(255,255,255,.32);vertical-align:middle;margin-right:1.5rem}
.logo-stage{position:relative;aspect-ratio:1/1;display:grid;place-items:center;align-content:center;background:var(--white);color:var(--navy-900);border-radius:50%;box-shadow:0 28px 80px rgba(0,0,0,.28);overflow:hidden}
.logo-stage::after{content:"";position:absolute;inset:7%;border:1px solid rgba(18,50,84,.08);border-radius:50%;pointer-events:none}
.logo-stage>img{position:relative;z-index:2;width:48%;margin:0 auto .35rem}
.logo-name{position:relative;z-index:2;margin:0;font-family:var(--font-logo);font-size:clamp(1.25rem,2.7vw,2.25rem);font-weight:700;letter-spacing:.06em}
.logo-en{position:relative;z-index:2;margin:.65rem 0 0;font-family:var(--font-latin);font-size:.63rem;font-weight:800;letter-spacing:.22em;color:var(--muted)}
.orbit{position:absolute;border:1px solid rgba(18,50,84,.09);border-radius:50%}
.orbit-one{width:76%;height:76%;right:-35%;top:-6%}
.orbit-two{width:58%;height:58%;left:-27%;bottom:-8%}
.hero-rule{height:8px;display:grid;grid-template-columns:1fr minmax(0,var(--shell)) 1fr}
.hero-rule::before{content:"";background:var(--sun)}
.hero-rule span{background:linear-gradient(90deg,var(--sun) 0 17%,var(--navy-700) 17% 100%)}
.hero-rule::after{content:"";background:var(--navy-700)}

/* Shared type */
.section-label{color:var(--navy-700);margin:0 0 1.2rem}
.section-intro{display:grid;grid-template-columns:13rem 1fr;align-items:end;margin-bottom:3.5rem}
.section-intro .section-label{margin:0 0 .65rem}
.section-intro h2,.identity h2,.system h2,.profile h2,.company h2,.contact h2{font-family:var(--font-display);font-weight:900;letter-spacing:-.035em;line-height:1.35;margin:0}
.section-intro h2{font-size:clamp(2.2rem,4.2vw,4rem)}
.section-intro.light .section-label{color:var(--sun)}
.section-intro.light h2{color:var(--white)}

/* Identity */
.section-white{background:var(--white)}
.identity{padding-block:clamp(6rem,11vw,10rem)}
.identity-grid{display:grid;grid-template-columns:13rem 1fr;gap:2rem}
.identity h2{font-size:clamp(2.5rem,5.2vw,5rem);max-width:12em}
.identity h2::after{content:"";display:block;width:4.5rem;height:8px;background:var(--sun);margin-top:2.2rem}
.large-copy{max-width:48rem;margin:2.3rem 0 0;font-size:clamp(1.05rem,1.6vw,1.28rem);color:#3f4a54}

/* Business */
.business{background:var(--paper);padding-block:clamp(5rem,10vw,9rem)}
.business-row{display:grid;grid-template-columns:5rem minmax(230px,.75fr) minmax(0,1.25fr);gap:clamp(1.5rem,4vw,4rem);padding:3.5rem 0;border-top:1px solid #bdc7cf;align-items:start}
.business-row:last-child{border-bottom:1px solid #bdc7cf}
.business-number{font-family:var(--font-latin);font-weight:800;font-size:.78rem;letter-spacing:.14em;color:var(--navy-700);padding-top:.45rem}
.business-kind{font-family:var(--font-latin);font-weight:800;font-size:.7rem;letter-spacing:.18em;color:var(--muted);margin:0 0 .8rem}
.business-title h3{font-size:clamp(1.7rem,3vw,2.75rem);line-height:1.4;letter-spacing:-.025em;margin:0}
.business-title strong{font-family:var(--font-latin);font-size:1.2em;color:var(--navy-700)}
.business-body p{margin:0 0 1.1rem}
.business-headline{font-size:clamp(1.2rem,2vw,1.55rem);font-weight:700;line-height:1.65;color:var(--navy-900)}
.business-note{font-size:.9rem;color:var(--muted);padding-top:.7rem;border-top:1px solid var(--line)}
.business-row.primary{position:relative}
.business-row.primary::after{content:"";position:absolute;left:0;top:-4px;width:5rem;height:8px;background:var(--sun)}

/* Proof */
.foundation{background:var(--navy-900);color:var(--white);padding-block:clamp(5.5rem,10vw,9rem)}
.work-intro{font-size:1rem;color:#c5d6e6;margin:-1.5rem 0 2.5rem}
.work-feature{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:clamp(2rem,5vw,4.5rem);align-items:center;padding-bottom:3.5rem}
.work-feature figure{margin:0;min-width:0}
.work-feature img{width:100%;height:auto}
.work-feature figcaption{font-size:.875rem;color:#c5d6e6;margin-top:.65rem}
.work-label{margin:0 0 .9rem;color:var(--sun-soft);font-size:.875rem;font-weight:700;letter-spacing:.04em}
.work-feature-copy h3{font:800 clamp(2.3rem,4.5vw,4rem)/1.1 var(--font-latin);letter-spacing:-.025em;margin:0 0 1.5rem}
.work-feature-copy>p:not(.work-label){color:#e0e9f1;margin:1rem 0}
.work-feature-copy .work-heading{font-size:1.25rem;font-weight:700}
.work-feature-copy .work-result{font-size:.875rem;color:#c5d6e6}
.work-link{display:inline-flex;align-items:center;gap:1.5rem;margin-top:.75rem;padding-block:.5rem;color:var(--white);text-decoration-color:var(--sun);font-size:1rem}
.work-link:hover{color:var(--sun-soft)}
.work-records{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid #58728c}
.work-records article{padding:2.25rem 0 0}
.work-records article+article{border-left:1px solid #58728c;padding-left:2.5rem;margin-left:2.5rem}
.work-records h3{font-size:1.5rem;margin:0 0 1rem;line-height:1.5}
.work-records article>p:last-child{color:#e0e9f1;margin:0;line-height:1.9}

/* System */
.system{background:var(--sun);color:var(--navy-950);padding-block:clamp(5.5rem,10vw,9rem)}
.system-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(2.5rem,5vw,5rem);align-items:start}
.system .section-label{color:var(--navy-800)}
.system h2{font-size:clamp(2.4rem,4.5vw,4.5rem)}
.system-grid>div>p:not(.section-label){max-width:34rem;margin:1.75rem 0 0}
.partnership{border-top:2px solid var(--navy-950)}
.partner-goal{padding:1rem 0;text-align:center;font-weight:700;border-bottom:1px solid #8b6328}
.partners{display:grid;grid-template-columns:minmax(0,1fr) 2.5rem minmax(0,1fr);padding:2rem 0;gap:.6rem;align-items:start}
.partners h3{font-size:2.5rem;line-height:1.25;margin:0 0 1rem}
.partners ul{list-style:none;margin:0;padding:0;font-size:1rem}
.partners li{padding:.35rem 0;line-height:1.7}
.partner-exchange{align-self:center;text-align:center;font-size:2rem}
.system-grid .partner-caption{max-width:none;margin:0;padding:1.25rem 0;text-align:center;border-top:1px solid #8b6328;font-weight:700}

/* Profile */
.profile{padding-block:clamp(5.5rem,10vw,9rem)}
.profile-grid{display:grid;grid-template-columns:minmax(260px,.65fr) minmax(0,1.35fr);gap:clamp(3rem,10vw,9rem)}
.profile h2{font-size:clamp(2.3rem,4vw,3.8rem)}
.role{margin:1rem 0 0;font-size:.85rem;font-weight:700;color:var(--navy-700)}
.profile-copy{font-size:clamp(1rem,1.3vw,1.12rem);color:#3f4a54}
.profile-copy p{margin:0 0 1.4rem}

/* Related business */
.related{background:var(--white);padding-block:clamp(5.5rem,10vw,9rem);border-top:1px solid var(--line)}
.related-list{border-top:2px solid var(--navy-900)}
.related-list article{display:grid;grid-template-columns:minmax(160px,.65fr) minmax(220px,1fr) minmax(260px,1.35fr) minmax(170px,.75fr);gap:clamp(1rem,3vw,2.5rem);align-items:baseline;padding:1.65rem 0;border-bottom:1px solid var(--line)}
.related-list p,.related-list h3{margin:0}
.related-type{font-family:var(--font-latin);font-size:.7rem;font-weight:800;letter-spacing:.08em;color:var(--navy-700)}
.related-list h3{font-size:1.08rem;line-height:1.6}
.related-list article>p:not(.related-type){font-size:.9rem;color:#3f4a54}
.related-list span{font-size:.78rem;color:var(--muted)}

/* Company */
.company{background:var(--paper);padding-block:clamp(5.5rem,10vw,9rem)}
.company-grid,.contact-grid{display:grid;grid-template-columns:minmax(250px,.6fr) minmax(0,1.4fr);gap:clamp(3rem,8vw,8rem)}
.company h2,.contact h2{font-size:clamp(2.2rem,4vw,3.6rem)}
.company-list{margin:0;border-top:2px solid var(--navy-900)}
.company-list>div{display:grid;grid-template-columns:9rem minmax(0,1fr);border-bottom:1px solid #cbd3da;padding:1.2rem 0}
.company-list dt{font-size:.8rem;font-weight:700;letter-spacing:.06em;color:var(--muted)}
.company-list dd{margin:0;font-size:.95rem}

/* Contact */
.contact{background:var(--white);padding-block:clamp(5.5rem,9vw,8rem)}
.contact-grid>div:last-child{padding-top:.8rem}
.contact-grid p{margin:0 0 1rem}
.mail{font-size:clamp(1.25rem,2vw,1.6rem);font-weight:700;color:var(--navy-800);word-break:break-all}
.mail a{text-decoration-color:var(--sun);text-decoration-thickness:4px}
.contact-note{font-size:.85rem;color:var(--muted)}

/* Footer */
.site-footer{background:var(--navy-950);color:var(--white);padding-block:3rem}
.footer-grid{display:grid;grid-template-columns:1fr 1fr auto;gap:2rem;align-items:center}
.footer-brand{display:flex;align-items:center;gap:.75rem;font-family:var(--font-logo);font-size:1rem;letter-spacing:.04em}
.footer-brand img{width:50px;background:var(--white);border-radius:50%;padding:4px}
.site-footer p{margin:0;font-family:var(--font-latin);font-size:.7rem;line-height:1.9;letter-spacing:.08em;color:rgba(255,255,255,.6)}
.site-footer>a{font-family:var(--font-latin);font-size:.72rem;font-weight:700;letter-spacing:.14em;color:var(--sun)}

@media (min-width:701px) and (max-width:1100px){
  .related-list article{grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:.7rem 1.5rem}
}

@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;min-height:auto}
  .logo-stage{width:min(78vw,500px);margin-inline:auto}
  .section-intro,.identity-grid{grid-template-columns:1fr}
  .business-row{grid-template-columns:3rem minmax(210px,.75fr) minmax(0,1.25fr);gap:1.5rem}
  .system-grid{grid-template-columns:1fr;gap:3rem}
  .work-feature{grid-template-columns:1fr;gap:2rem}
  .related-list article{grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:.7rem 1.5rem}
  .header-inner{gap:1rem}
  .site-header nav{gap:1rem}
}

@media (max-width:700px){
  .shell{width:min(calc(100% - 2.25rem),var(--shell))}
  .header-inner{min-height:74px}
  .brand img{width:36px}
  .brand span{font-size:.94rem}
  .site-header nav a:not(.nav-contact){display:none}
  .site-header .nav-contact{font-size:.78rem}
  .hero-grid{padding-block:4rem 5rem;gap:3rem}
  .hero h1{font-size:clamp(2.75rem,13vw,4.2rem)}
  .hero-meta{display:grid;gap:.45rem}
  .hero-meta span+span::before{display:none}
  .logo-stage{width:min(92%,420px)}
  .identity,.business,.foundation,.system,.profile,.company,.contact,.related{padding-block:5rem}
  .business-row{grid-template-columns:2.5rem 1fr;padding:2.5rem 0}
  .business-title{grid-column:2}
  .business-body{grid-column:2}
  .work-records{grid-template-columns:1fr}
  .work-records article+article{border-left:0;border-top:1px solid #58728c;padding-left:0;margin:2rem 0 0}
  .partners{grid-template-columns:1fr;gap:1rem}
  .partner-exchange{transform:rotate(90deg);line-height:1}
  .partners>div:not(.partner-exchange){display:grid;grid-template-columns:3rem minmax(0,1fr);gap:1rem}
  .partners h3{font-size:1.8rem}
  .identity h2{font-size:clamp(1.8rem,6.7vw,2.7rem)}
  .profile-grid,.company-grid,.contact-grid{grid-template-columns:1fr;gap:2.5rem}
  .related-list article{grid-template-columns:1fr;gap:.35rem;padding:1.5rem 0}
  .company-list>div{grid-template-columns:1fr;gap:.3rem}
  .footer-grid{grid-template-columns:1fr;align-items:start}
}

@media (max-width:390px){
  body{font-size:.97rem}
  .brand span{font-size:.86rem}
  .site-header .nav-contact{padding:.45rem .65rem}
  .logo-stage{width:100%}
  .logo-name{font-size:1.3rem}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}