/* Layout: navy hero with a gold supply-chain line, then quiet white sections on a 1080px measure; gold used only as thin rules and numerals */
:root{
  --navy:#0f2344; --navy-2:#1b3560; --gold:#b08d4c; --gold-soft:#d8c29a;
  --paper:#ffffff; --mist:#f4f5f8; --ink:#1a2233; --ink-2:#56607a; --line:#dde1ea;
  --f-display:"Noto Serif JP","Hiragino Mincho ProN","Yu Mincho",serif;
  --f-body:"Noto Serif JP","Hiragino Mincho ProN","Yu Mincho",serif;
  --f-latin:"IBM Plex Sans","Helvetica Neue",Arial,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
img{max-width:100%}
html{scroll-padding-top:80px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-body);font-weight:400;font-size:15px;line-height:1.9;letter-spacing:.02em}
a{color:inherit}
.wrap{max-width:1080px;margin:0 auto;padding-inline:24px}

/* header */
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:var(--paper);border-bottom:1px solid var(--line)}
.hbar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.logo{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--ink-2)}
.logo img{height:30px;width:auto;display:block}
.logo span{font-size:11px;line-height:1.5;letter-spacing:.08em;border-left:1px solid var(--line);padding-left:14px}
.logo span b{display:block;font-weight:500;color:var(--navy);font-size:12px}
@media (max-width:480px){.logo img{height:24px}.logo span{display:none}}
.hbar nav{display:flex;gap:28px;align-items:center;font-size:13px}
.hbar nav a{color:var(--ink);text-decoration:none}
.hbar nav a:hover{color:var(--gold)}
.hbar nav .cta{background:var(--navy);color:#fff;padding:9px 18px}
.hbar nav .cta:hover{background:var(--gold);color:#fff}
@media (max-width:820px){.hbar nav a:not(.cta){display:none}}

/* hero */
.hero{background:var(--navy);color:#fff;padding-block:88px 96px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:56px;align-items:center}
.eyebrow{font-family:var(--f-latin);font-size:12px;font-weight:600;letter-spacing:.24em;color:var(--gold-soft);text-transform:uppercase}
.hero h1{font-family:var(--f-display);font-weight:600;font-size:clamp(30px,4.6vw,50px);line-height:1.45;margin:18px 0 26px;text-wrap:balance;letter-spacing:.04em}
.hero p{color:#cfd5e2;max-width:34em;margin:0}
.map{display:grid;grid-template-columns:minmax(0,1fr) 22px auto;align-items:stretch}
.flow-label{grid-column:1/-1;font-size:11px;letter-spacing:.14em;color:#9fa9c0;margin-bottom:14px}
.flow{display:grid;gap:10px;min-width:0}
.fnode{border:1px solid #33496f;background:#132a50;padding:10px 14px}
.fnode b{display:block;font-family:var(--f-display);font-weight:600;font-size:15px;color:#fff}
.fnode small{display:block;color:#9fa9c0;font-size:12px;line-height:1.7;margin-top:2px}
.fnode .fnote{color:var(--gold-soft);margin-top:4px}
.flow{gap:12px}
.arrow{height:14px;margin-left:22px;border-left:1px solid #6b7fa6;position:relative}
.arrow::after{content:"";position:absolute;left:-4px;bottom:-1px;border:4px solid transparent;border-top:5px solid #6b7fa6;border-bottom:0}
.bracket{border:1px solid var(--gold);border-left:0;margin-block:18px;align-self:stretch}
.us{align-self:center;position:relative;margin-left:14px;border:1px solid var(--gold);background:rgba(176,141,76,.1);padding:14px 16px;width:150px}
.us::before{content:"";position:absolute;left:-15px;top:50%;width:14px;border-top:1px solid var(--gold)}
.us img{height:18px;width:auto;display:block;margin-bottom:8px}
.us b{display:block;color:var(--gold-soft);font-size:13px;font-weight:600;letter-spacing:.08em}
.us small{display:block;color:#cfd5e2;font-size:12px;line-height:1.7;margin-top:4px}
.map-note{grid-column:1/-1;margin-top:18px;font-size:12px;color:#9fa9c0;line-height:1.8}
@media (max-width:480px){.us{width:118px;padding:12px}.map{grid-template-columns:minmax(0,1fr) 16px auto}}
@media (prefers-reduced-motion:no-preference){.us{animation:rise .8s .2s both}@keyframes rise{from{transform:translateX(-6px)}to{transform:none}}}
@media (max-width:820px){.hero{padding-block:56px 64px}.hero-grid{grid-template-columns:1fr;gap:44px}}

/* sections */
section{padding-block:96px}
section.alt{background:var(--mist)}
.sec-head{display:flex;align-items:baseline;gap:20px;margin-bottom:44px;flex-wrap:wrap}
.sec-head .en{font-family:var(--f-latin);font-weight:600;color:var(--gold);letter-spacing:.22em;font-size:12px;text-transform:uppercase}
.sec-head h2{font-family:var(--f-display);font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--navy);margin:0;letter-spacing:.06em}
.lead{max-width:40em;color:var(--ink-2);margin:-24px 0 40px}

.walls{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--navy)}
.wall{padding:28px 28px 8px 0;border-right:1px solid var(--line)}
.wall + .wall{padding-left:28px}
.wall:last-child{border-right:0}
.wall .num{font-family:var(--f-latin);font-weight:600;font-size:34px;color:var(--gold);line-height:1}
.wall h3{font-family:var(--f-display);font-size:20px;color:var(--navy);margin:12px 0 8px}
.wall p{margin:0;color:var(--ink-2);font-size:14px}
@media (max-width:820px){.walls{grid-template-columns:1fr}.wall,.wall + .wall{padding:24px 0;border-right:0;border-bottom:1px solid var(--line)}}

.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--navy)}
.steps li{display:grid;grid-template-columns:auto 1fr;gap:14px;padding:26px 22px 8px 0;min-width:0;position:relative}
.steps li + li{padding-left:22px;border-left:1px solid var(--line)}
.steps .sn{font-family:var(--f-latin);font-weight:600;font-size:13px;color:#fff;background:var(--navy);width:26px;height:26px;display:grid;place-items:center;border-radius:50%}
.steps li:nth-child(3) .sn{background:var(--gold)}
.steps h3{font-family:var(--f-display);font-size:16px;color:var(--navy);margin:0 0 6px;line-height:1.5}
.steps p{margin:0;font-size:13.5px;color:var(--ink-2)}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr}.steps li:nth-child(3){padding-left:0;border-left:0}}
@media (max-width:560px){.steps{grid-template-columns:1fr}.steps li,.steps li + li{padding:20px 0;border-left:0;border-bottom:1px solid var(--line)}}
/* philosophy */
.mvv{border-top:1px solid var(--navy)}
.mrow{display:grid;grid-template-columns:200px 1fr;gap:32px;padding-block:28px;border-bottom:1px solid var(--line);min-width:0}
.mlab{font-family:var(--f-display);font-weight:600;color:var(--navy);font-size:15px}
.mlab span{display:block;font-family:var(--f-latin);font-weight:600;font-size:11px;letter-spacing:.22em;color:var(--gold);margin-bottom:2px}
.mtxt{margin:0;font-size:16px;line-height:2;color:var(--ink);min-width:0}
.mlab small{display:block;font-size:12px;font-weight:400;color:var(--ink-2)}
.vals{display:grid;grid-template-columns:auto 1fr;gap:10px 24px}
.vals dt{color:var(--gold);font-weight:600;font-size:14px;padding-top:3px;white-space:nowrap}
.vals dd{margin:0}
@media (max-width:480px){.vals{grid-template-columns:1fr;gap:2px}.vals dd{margin-bottom:10px}}
@media (max-width:640px){.mrow{grid-template-columns:1fr;gap:8px}}
/* profile */
.profile{display:grid;grid-template-columns:280px 1fr;gap:56px}
.portrait{aspect-ratio:3/4;max-width:100%;background:linear-gradient(160deg,var(--navy-2),var(--navy));display:grid;place-items:center;color:var(--gold-soft);font-size:12px;letter-spacing:.2em}
.pname{margin-top:18px}
.pname small{display:block;color:var(--ink-2);font-size:12px}
.pname b{font-family:var(--f-display);font-size:24px;color:var(--navy);letter-spacing:.1em}
.pname i{display:block;font-style:normal;font-family:var(--f-latin);font-weight:600;color:var(--gold);letter-spacing:.18em;font-size:11px}
.timeline{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.timeline li{display:grid;grid-template-columns:110px 1fr;gap:20px;padding-block:16px;border-bottom:1px solid var(--line);min-width:0}
.timeline .y{font-family:var(--f-latin);font-weight:600;font-size:16px;color:var(--navy);font-variant-numeric:tabular-nums}
.timeline .d b{display:block;color:var(--navy);font-weight:500}
.timeline .d span{color:var(--ink-2);font-size:13px}
.timeline li.key .y{color:var(--gold)}
@media (max-width:820px){.profile{grid-template-columns:1fr;gap:32px}.portrait{max-width:240px}.timeline li{grid-template-columns:84px 1fr;gap:12px}}

/* services */
.svc{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.svc article{background:var(--paper);padding:34px 32px;display:grid;gap:12px;align-content:start;min-width:0}
.svc .tag{font-family:var(--f-latin);font-weight:600;color:var(--gold);letter-spacing:.18em;font-size:11px}
.svc h3{font-family:var(--f-display);font-size:21px;color:var(--navy);margin:0;line-height:1.5}
.svc p{margin:0;color:var(--ink-2);font-size:14px}
.svc dl{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;margin:6px 0 0;font-size:13px;border-top:1px dashed var(--line);padding-top:12px}
.svc dt{color:var(--gold);font-weight:500}
.svc dd{margin:0;color:var(--ink)}
@media (max-width:820px){.svc{grid-template-columns:1fr}.svc article{padding:28px 20px}}

/* cases */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.case{border-top:2px solid var(--navy);padding-top:22px;display:grid;gap:10px;align-content:start;min-width:0}
.case .who{font-size:12px;color:var(--ink-2);letter-spacing:.08em}
.case h3{font-family:var(--f-display);font-size:18px;color:var(--navy);margin:0;line-height:1.6}
.case .res{margin-top:6px;padding:14px 16px;background:var(--mist);font-size:13px}
.case .res b{display:block;font-family:var(--f-latin);font-weight:600;font-size:11px;letter-spacing:.18em;color:var(--gold)}
.ph{color:#9a7a3c;background:rgba(176,141,76,.12);padding:0 4px}
.clients{margin-top:48px;border:1px dashed var(--gold-soft);padding:20px 24px;font-size:13px;color:var(--ink-2)}
.clients b{color:var(--navy)}
@media (max-width:820px){.cases{grid-template-columns:1fr}}

.themes h3{font-family:var(--f-display);font-size:15px;font-weight:600;color:var(--navy);margin:0 0 8px}
.themes ul{list-style:none;margin:0;padding:0;border-top:1px solid var(--navy)}
.themes li{padding:18px 0 18px 28px;border-bottom:1px solid var(--line);font-size:16px;position:relative}
.themes li::before{content:"";position:absolute;left:4px;top:50%;width:12px;height:1px;background:var(--gold)}
/* company */
.company{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.ctable{width:100%;border-collapse:collapse;font-size:14px}
.ctable th,.ctable td{text-align:left;padding:14px 0;border-bottom:1px solid var(--line);vertical-align:top}
.ctable th{width:9.5em;color:var(--navy);font-weight:500}
.policy{display:grid;gap:18px;align-content:start}
.policy a{display:flex;justify-content:space-between;gap:12px;text-decoration:none;border-bottom:1px solid var(--line);padding-block:14px;color:var(--navy)}
.policy a::after{content:"→";color:var(--gold)}
.policy p{margin:0;color:var(--ink-2);font-size:13px}
@media (max-width:820px){.company{grid-template-columns:1fr;gap:40px}}

/* contact */
.contact{background:var(--navy);color:#fff}
.contact .sec-head h2{color:#fff}
.contact .lead{color:#cfd5e2}
form{display:grid;grid-template-columns:1fr 1fr;gap:18px 24px;max-width:860px}
.field{display:grid;gap:6px;min-width:0;align-content:start}
form label{font-size:13px;color:#dfe4ee}
label em{font-style:normal;font-size:11px;color:var(--navy);background:var(--gold-soft);padding:0 6px;margin-left:8px}
label i{font-style:normal;font-size:11px;color:#9fa9c0;margin-left:8px}
input,select,textarea{font:inherit;font-size:14px;padding:11px 12px;border:1px solid #3a507a;background:#15294d;color:#fff;border-radius:0;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--gold);outline-offset:1px}
.full{grid-column:1/-1}
button{font:inherit;background:var(--gold);color:#fff;border:0;padding:14px 40px;letter-spacing:.2em;cursor:pointer;justify-self:start}
button:focus-visible{outline:2px solid #fff;outline-offset:2px}
.agree,.cf-turnstile,.msg,form button{grid-column:1/-1}
.agree{display:flex;align-items:center;gap:10px}
.agree input{width:18px;height:18px;padding:0;accent-color:var(--gold)}
.agree a{color:var(--gold-soft)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.msg{margin:0;font-size:14px;padding:12px 14px;border:1px solid var(--gold);color:#fff}
.msg.err{border-color:#d88;color:#f3c7c7}
input[aria-invalid="true"],select[aria-invalid="true"],textarea[aria-invalid="true"]{border-color:#e08a8a}
button[disabled]{opacity:.6;cursor:wait}
.flinks{display:flex;flex-wrap:wrap;gap:4px 18px;margin-bottom:6px}
.flinks a{color:#c6cddc;text-decoration:none}
.flinks a:hover{color:var(--gold-soft)}
form{position:relative}
@media (max-width:640px){form{grid-template-columns:1fr}}

footer{background:#0a1832;color:#9fa9c0;font-size:12px;padding-block:36px}
.fgrid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer .flogo{height:24px;width:auto;display:block;margin-bottom:10px}
ruby rt{font-size:10px;color:var(--ink-2);letter-spacing:.1em}

/* policy page */
.doc{padding-block:72px 96px}
.doc h1{font-family:var(--f-display);color:var(--navy);font-size:clamp(24px,3vw,30px);margin:0 0 12px;letter-spacing:.04em}
.doc .toc{display:flex;flex-wrap:wrap;gap:8px 24px;margin:0 0 48px;padding:0;list-style:none;font-size:14px}
.doc .toc a{color:var(--navy)}
.doc article{max-width:46em;padding-block:40px;border-top:1px solid var(--navy);scroll-margin-top:90px}
.doc article h2{font-family:var(--f-display);color:var(--navy);font-size:22px;margin:0 0 20px}
.doc article h3{font-size:16px;color:var(--navy);margin:28px 0 8px}
.doc article p,.doc article li{font-size:15px}
.doc article ol,.doc article ul{padding-left:1.4em}
.doc .meta{color:var(--ink-2);font-size:13px;margin-top:24px}