:root{
  --paper:#f3f2ee; --paper-2:#eceae4; --ink:#1f2226; --iron:#41464b; --iron-2:#5d6267;
  --line:#c7c6c0; --line-2:#b3b2ab; --line-strong:#8b8a83;
  --accent:#b0301f; --accent-ink:#fff; --grid:rgba(31,34,38,.045);
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family: "Hiragino Kaku Gothic ProN","Hiragino Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,"Noto Sans JP",sans-serif;
  line-height:1.85; letter-spacing:.045em; word-break:auto-phrase; line-break:strict; overflow-wrap:anywhere;
  -webkit-font-smoothing:antialiased;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:26px 26px;
}
.mono{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,"DejaVu Sans Mono",monospace;font-variant-numeric:tabular-nums;letter-spacing:0}
.zk{font-family:"Zen Kaku Gothic New",sans-serif}
.nb{white-space:nowrap}
h1,h2,h3{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:700;line-height:1.4;margin:0;letter-spacing:.03em;word-break:keep-all}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
.wrap{max-width:1120px;margin:0 auto;padding:0 max(18px,4.5vw)}

/* ---- drawing bar (top) ---- */
.dbar{background:var(--ink);color:#e9e7e1;font-size:11.5px;letter-spacing:.14em}
.dbar .wrap{display:flex;gap:16px;flex-wrap:wrap;align-items:center;justify-content:space-between;padding-top:7px;padding-bottom:7px}
.dbar .mono{color:#b9b6ae}
.dbar b{color:#fff}
.dbar .rr{color:var(--accent-ink);background:var(--accent);padding:1px 8px;font-weight:700;letter-spacing:.1em}

/* ---- header ---- */
header.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:var(--paper);border-bottom:1.5px solid var(--ink)}
.hd{display:flex;align-items:center;gap:14px;padding:12px 0}
.brand{display:flex;align-items:center;gap:11px}
.brand .bm{width:30px;height:30px;flex:0 0 auto}
.brand .bt{font-family:"Zen Kaku Gothic New";font-weight:700;font-size:16px;letter-spacing:.06em;line-height:1.1}
.brand .bt small{display:block;font-size:9.5px;letter-spacing:.28em;color:var(--iron-2);font-weight:500}
nav.desk{margin-left:auto;display:flex;gap:2px;flex-wrap:wrap}
nav.desk a{font-size:13px;color:var(--iron);padding:7px 10px;letter-spacing:.06em;border:1px solid transparent}
nav.desk a:hover{color:var(--ink);border-color:var(--line-2)}
nav.desk a[aria-current="page"]{color:var(--accent);font-weight:700}
.hcta{margin-left:6px;display:inline-flex;align-items:center;gap:7px;background:var(--ink);color:#fff;font-size:13px;font-weight:700;padding:9px 15px;letter-spacing:.08em}
.hcta:hover{background:var(--accent)}
/* mobile menu (checkbox hamburger) */
.burger{display:none;margin-left:auto;width:44px;height:40px;border:1.5px solid var(--ink);align-items:center;justify-content:center;cursor:pointer;flex-direction:column;gap:5px}
.burger span{display:block;width:20px;height:2px;background:var(--ink)}
/* 閉じた状態でも inset:0 のまま（画面外へ出さない）→ 横スクロールを発生させない。表示はフェードで制御 */
#mnav{position:fixed;inset:0;background:var(--paper);z-index:40;visibility:hidden;opacity:0;transform:translateY(-6px);transition:opacity .2s ease,visibility .2s ease,transform .2s ease;display:flex;flex-direction:column;padding:18px max(18px,4.5vw) 40px;overflow-y:auto}
#mnav[data-open="1"]{visibility:visible;opacity:1;transform:none}
#mnav a.sub{padding-left:20px;font-size:16px;color:var(--iron)}
#mnav a.sub::before{content:"└ ";color:var(--iron-2)}
#mnav .mhead{display:flex;align-items:center;justify-content:space-between;border-bottom:1.5px solid var(--ink);padding-bottom:14px}
#mnav .close{width:44px;height:40px;border:1.5px solid var(--ink);background:none;font-size:22px;line-height:1;cursor:pointer;font-family:inherit}
#mnav a{display:flex;justify-content:space-between;align-items:baseline;padding:16px 2px;border-bottom:1px solid var(--line);font-family:"Zen Kaku Gothic New";font-weight:700;font-size:19px;letter-spacing:.06em}
#mnav a .no{font-size:12px;color:var(--accent)}
#mnav a[aria-current="page"]{color:var(--accent)}
#mnav .mcta{margin-top:22px;background:var(--ink);color:#fff;text-align:center;padding:15px;font-weight:700;letter-spacing:.1em;font-family:"Zen Kaku Gothic New"}

/* ---- section scaffolding (drawing grammar) ---- */
main{padding-bottom:20px}
.sec{padding-block:clamp(38px,6vw,70px);border-bottom:1px solid var(--line)}
.secno{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.secno .n{font-family:ui-monospace,Menlo,monospace;font-size:12px;letter-spacing:.24em;color:var(--accent);font-weight:700;border:1px solid var(--accent);padding:2px 8px}
.secno .lab{font-size:11.5px;letter-spacing:.28em;color:var(--iron-2);text-transform:uppercase;font-family:ui-monospace,Menlo,monospace}
.secno .ln{flex:1;height:1px;background:var(--line-2)}
h1.disp{font-size:clamp(28px,5.2vw,50px);font-weight:700;letter-spacing:.04em;line-height:1.32}
h2.sec-h{font-size:clamp(21px,3.2vw,30px);font-weight:700;letter-spacing:.05em}
.lead{color:var(--iron);font-size:clamp(15px,1.5vw,16.5px);margin-top:14px;max-width:62ch}
.ey{font-size:12px;letter-spacing:.24em;color:var(--iron-2);font-family:ui-monospace,Menlo,monospace;text-transform:uppercase}

/* dimension line motif */
.dim{display:flex;align-items:center;gap:10px;margin:22px 0;color:var(--iron)}
.dim .val{font-family:ui-monospace,Menlo,monospace;font-size:12.5px;letter-spacing:.08em;color:var(--ink);white-space:nowrap}
.dim .bar{position:relative;flex:1;height:1px;background:var(--line-strong)}
.dim .bar::before,.dim .bar::after{content:"";position:absolute;top:-4px;width:1px;height:9px;background:var(--line-strong)}
.dim .bar::before{left:0}.dim .bar::after{right:0}

/* photo frame (drawing view) */
.frame{position:relative;border:1.5px solid var(--ink);background:var(--paper-2);overflow:hidden}
.frame img{width:100%;height:100%;object-fit:cover;display:block;filter:grayscale(.18) contrast(1.03)}
.frame .cap{position:absolute;left:0;bottom:0;background:var(--ink);color:#e9e7e1;font-family:ui-monospace,Menlo,monospace;font-size:10.5px;letter-spacing:.12em;padding:4px 9px}
.frame .tick{position:absolute;width:9px;height:9px;border:1.5px solid #fff;mix-blend-mode:difference}
.frame .t1{left:6px;top:6px;border-right:0;border-bottom:0}
.frame .t2{right:6px;top:6px;border-left:0;border-bottom:0}
.frame .t3{left:6px;bottom:6px;border-right:0;border-top:0}
.frame .t4{right:6px;bottom:6px;border-left:0;border-top:0}
.ratio-4x3{aspect-ratio:4/3}
.ratio-16x9{aspect-ratio:16/9}
.ratio-1x1{aspect-ratio:1/1}
.ratio-3x4{aspect-ratio:3/4}

/* hero */
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(22px,4vw,48px);align-items:center;padding-block:clamp(30px,5vw,56px)}
.hero .kv b{color:var(--accent)}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:"Zen Kaku Gothic New";font-weight:700;font-size:14px;letter-spacing:.08em;padding:12px 20px;border:1.5px solid var(--ink);cursor:pointer}
.btn.solid{background:var(--ink);color:#fff}.btn.solid:hover{background:var(--accent);border-color:var(--accent)}
.btn.line{background:none;color:var(--ink)}.btn.line:hover{border-color:var(--accent);color:var(--accent)}

/* spec strip */
.specs{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line-2);margin-top:8px}
.specs .s{padding:16px 16px;border-right:1px solid var(--line)}
.specs .s:last-child{border-right:0}
.specs .s b{display:block;font-family:ui-monospace,Menlo,monospace;font-size:clamp(22px,3vw,30px);font-weight:700;color:var(--ink);letter-spacing:.02em;line-height:1.1}
.specs .s span{font-size:11.5px;color:var(--iron-2);letter-spacing:.1em;font-family:ui-monospace,Menlo,monospace}

/* generic grid + panels (flat, hairline, no shadow/radius) */
.cols{display:grid;gap:0;border:1px solid var(--line-2);margin-top:26px}
.cols.c3{grid-template-columns:repeat(3,1fr)}
.cols.c2{grid-template-columns:repeat(2,1fr)}
.cell{padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.cols.c3 .cell:nth-child(3n){border-right:0}
.cols.c2 .cell:nth-child(2n){border-right:0}
.cell h3{font-size:17px;margin-bottom:8px}
.cell p{color:var(--iron);font-size:14px}
.cell .tagno{font-family:ui-monospace,Menlo,monospace;font-size:11px;letter-spacing:.14em;color:var(--accent);display:block;margin-bottom:10px}

/* data tables */
.tablewrap{overflow-x:auto;margin-top:22px;border:1px solid var(--line-2)}
table.data{width:100%;border-collapse:collapse;font-size:14.5px}
table.data th,table.data td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}
table.data tr:last-child th,table.data tr:last-child td{border-bottom:0}
table.data th{width:32%;color:var(--iron);font-weight:700;white-space:nowrap;background:var(--paper-2)}
table.data td.mono{font-size:15px}

/* timeline / news */
.rows{border:1px solid var(--line-2);margin-top:22px}
.rows .r{display:grid;grid-template-columns:132px 1fr;gap:16px;padding:15px 18px;border-bottom:1px solid var(--line)}
.rows .r:last-child{border-bottom:0}
.rows .r .d{font-family:ui-monospace,Menlo,monospace;font-size:13px;color:var(--accent);letter-spacing:.04em}

/* numbers */
.numgrid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line-2);margin-top:26px}
.numgrid .nt{padding:26px 22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.numgrid .nt:nth-child(3n){border-right:0}
.numgrid .nt .big{font-family:ui-monospace,Menlo,monospace;font-size:clamp(34px,5.4vw,52px);font-weight:700;color:var(--ink);line-height:1.05;letter-spacing:.01em}
.numgrid .nt .big .u{font-size:.42em;color:var(--iron-2);margin-left:5px}
.numgrid .nt .l{font-size:13px;color:var(--iron);margin-top:8px;letter-spacing:.06em}

/* interview */
.iv{display:grid;grid-template-columns:300px 1fr;gap:26px;border:1px solid var(--line-2);padding:22px;margin-top:22px}
.iv .role{font-family:ui-monospace,Menlo,monospace;font-size:12px;letter-spacing:.12em;color:var(--accent);margin-bottom:8px}
.iv h3{font-size:19px;margin-bottom:12px}
.qa .q{font-weight:700;font-family:"Zen Kaku Gothic New";margin-top:14px;font-size:14.5px}
.qa .a{color:var(--iron);font-size:14px;margin-top:3px}

/* form */
.form{border:1px solid var(--line-2);padding:24px;margin-top:24px}
.fg{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
label{font-size:13px;font-weight:700;font-family:"Zen Kaku Gothic New";letter-spacing:.04em}
label .rq{color:var(--accent);font-size:11px;margin-left:6px;font-family:ui-monospace,monospace}
input,select,textarea{font:inherit;font-size:15px;color:var(--ink);background:var(--paper);border:1px solid var(--line-strong);padding:12px 13px;border-radius:0}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}
textarea{min-height:120px;resize:vertical}
.note{font-size:12.5px;color:var(--iron-2);font-family:ui-monospace,Menlo,monospace}
.ok{border:1.5px solid var(--accent);padding:15px 17px;font-size:14.5px;margin-top:16px}

.pillrow{display:flex;gap:0;flex-wrap:wrap;border:1px solid var(--line-2);margin-top:20px}
.pillrow .p{padding:9px 15px;border-right:1px solid var(--line);font-size:13px;color:var(--iron);font-family:ui-monospace,Menlo,monospace;letter-spacing:.06em}
.pillrow .p:last-child{border-right:0}

.backln{display:inline-flex;gap:8px;align-items:center;color:var(--iron);font-family:ui-monospace,Menlo,monospace;font-size:12.5px;letter-spacing:.1em;margin-top:8px}

/* ---- title block footer ---- */
footer.tb{border-top:2px solid var(--ink);background:var(--paper)}
.tbgrid{display:grid;grid-template-columns:2fr 1fr 1fr;border:2px solid var(--ink);border-top:0}
.tbgrid .box{border-right:1px solid var(--ink);padding:16px 18px}
.tbgrid .box:last-child{border-right:0}
.tbgrid .k{font-family:ui-monospace,Menlo,monospace;font-size:10px;letter-spacing:.18em;color:var(--iron-2);text-transform:uppercase}
.tbgrid .v{font-family:"Zen Kaku Gothic New";font-weight:700;font-size:15px;margin-top:4px;letter-spacing:.04em}
.tbgrid .v.mono{font-family:ui-monospace,Menlo,monospace;font-weight:400;font-size:14px}
.tbsub{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;border:2px solid var(--ink);border-top:1px solid var(--ink)}
.tbsub .cbox{border-right:1px solid var(--ink);padding:12px 16px}
.tbsub .cbox:last-child{border-right:0}
.tbsub .k{font-family:ui-monospace,Menlo,monospace;font-size:10px;letter-spacing:.16em;color:var(--iron-2)}
.tbsub .v{margin-top:3px;font-family:ui-monospace,Menlo,monospace;font-size:13px;color:var(--ink)}
.footlinks{display:flex;gap:18px;flex-wrap:wrap;padding:16px 0}
.footlinks a{font-size:13px;color:var(--iron);letter-spacing:.04em}
.footlinks a:hover{color:var(--accent)}
.demo{border:1.5px solid var(--accent);padding:13px 16px;margin:16px 0 24px;font-size:12.5px;color:var(--ink);letter-spacing:.04em;line-height:1.7}
.demo b{color:var(--accent)}
.demo a{text-decoration:underline}
.footlinks a{text-decoration:underline;text-underline-offset:2px}

@media (max-width:900px){
  nav.desk,.hcta{display:none}
  .burger{display:flex}
  .hero{grid-template-columns:1fr}
  .hero .fig{order:-1}
  .cols.c3,.cols.c2{grid-template-columns:1fr}
  .cols.c3 .cell,.cols.c2 .cell{border-right:0}
  .numgrid{grid-template-columns:1fr 1fr}
  .numgrid .nt:nth-child(3n){border-right:1px solid var(--line)}
  .numgrid .nt:nth-child(2n){border-right:0}
  .iv{grid-template-columns:1fr}
  .fg{grid-template-columns:1fr}
  .tbgrid{grid-template-columns:1fr}
  .tbgrid .box{border-right:0;border-bottom:1px solid var(--ink)}
  .tbsub{grid-template-columns:1fr 1fr}
}
@media (max-width:460px){
  body{background-size:22px 22px}
  .specs{grid-template-columns:1fr 1fr}
  .specs .s:nth-child(2n){border-right:0}
  .numgrid{grid-template-columns:1fr}
  .numgrid .nt{border-right:0!important}
  .rows .r{grid-template-columns:1fr;gap:2px}
  .tbsub{grid-template-columns:1fr}
}

/* ===== LIGHT: クリーン標準コーポレート（図面要素オフ・整った型） ===== */
body.clean{background-image:none;background:#fbfbfa}
.clean header.site{border-bottom:1px solid var(--line)}
.clean .secno .n,.clean .secno .ln,.clean .dim{display:none}
.clean .secno{margin-bottom:14px}
.clean .secno .lab{color:var(--accent);letter-spacing:.2em}
.clean .ey,.clean .tagno{color:var(--accent)}
.clean .frame{border:0;border-radius:14px;box-shadow:0 12px 34px rgba(20,25,35,.12)}
.clean .frame img{filter:none}
.clean .frame .tick,.clean .frame .cap{display:none}
.clean .cols{border:0;gap:16px}
.clean .cell{border:1px solid #e7e7e4!important;border-radius:14px;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.clean .specs{border:1px solid #e7e7e4;border-radius:14px;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.04);overflow:hidden}
.clean .btn{border-radius:10px}
.clean .tablewrap,.clean .rows{border-radius:12px}
.clean .sec{border-bottom:1px solid var(--line)}
/* ライト専用ヒーロー：上に横長バナー写真＋下にコピー（スタンダードの左右分割と別構図） */
.lighthero{display:flex;flex-direction:column;gap:clamp(20px,3vw,30px);padding-block:clamp(22px,4vw,44px)}
.lighthero .fig{width:100%}
.lighthero-copy{max-width:820px}
.lighthero h1{margin:12px 0}
.lighthero .hero-cta{margin-top:22px}

/* ===== PREMIUM: 全画面ヒーロー ===== */
.hero-full{position:relative;min-height:80vh;display:flex;align-items:flex-end;color:#fff;overflow:hidden}
.hero-full .bg{position:absolute;inset:0}
.hero-full .bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.58) contrast(1.03)}
.hero-full .scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,18,22,.15),rgba(15,18,22,.75))}
.hero-full .inner{position:relative;z-index:2;width:100%;max-width:1120px;margin:0 auto;padding:clamp(30px,6vw,72px) max(18px,4.5vw)}
.hero-full .ey{color:#e0a24a}
.hero-full h1{color:#fff;font-size:clamp(34px,6.4vw,66px);letter-spacing:.03em}
.hero-full .dim{color:#cdd6df}
.hero-full .dim .bar{background:rgba(255,255,255,.5)}.hero-full .dim .bar::before,.hero-full .dim .bar::after{background:rgba(255,255,255,.5)}
.hero-full .dim .val{color:#fff}
.hero-full .lead{color:rgba(255,255,255,.92)}

/* ===== PREMIUM: 採用特設への目立つ入口 ===== */
.specialcta{display:block;margin:26px 0;padding:24px 26px;background:#0e1216;color:#fff;text-decoration:none;position:relative;overflow:hidden;border:1px solid #1d2731}
.specialcta .k{font-family:ui-monospace,Menlo,monospace;letter-spacing:.2em;font-size:11.5px;color:#e0a24a}
.specialcta h3{color:#fff;font-size:clamp(19px,2.6vw,26px);margin-top:6px}
.specialcta p{color:#9fb0c0;font-size:13.5px;margin-top:6px}
.specialcta .arrow{position:absolute;right:22px;top:50%;transform:translateY(-50%);color:#e0a24a;font-size:26px}
.specialcta:hover{filter:brightness(1.12)}

/* ===== PREMIUM: 採用特設＝別世界（ダーク） ===== */
.darkworld{background:#0e1216;color:#e7ecf1;margin-block:0;padding-block:clamp(30px,5vw,60px)}
.darkworld .wrap{max-width:1120px;margin:0 auto;padding:0 max(18px,4.5vw)}
.darkworld h1,.darkworld h2,.darkworld h3{color:#fff}
.darkworld .lead{color:#aab6c2}
.darkworld .secno .n{color:#e0a24a;border-color:#e0a24a}
.darkworld .secno .lab{color:#7f8b98}
.darkworld .secno .ln{background:#2a3644}
.darkworld .iv{border-color:#243040;background:#141b22}
.darkworld .role{color:#e0a24a}
.darkworld .qa .q{color:#e7ecf1}
.darkworld .qa .a{color:#9fb0c0}
.darkworld .frame{border-color:#2a3644;background:#0b0f13}
.darkworld a{color:#e0a24a}