:root{
    --navy:#121212;--navy-soft:#333333;--red:#e0322d;--ink:#1a1a1a;
    --text:#42506b;--muted:#93a4c4;--muted-2:#aab7d1;--line:#dbe2ec;
    --bg:#ffffff;--bg-gray:#f4f6f9;--maxw:1400px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN",sans-serif;color:var(--text);background:var(--bg);line-height:1.9;-webkit-font-smoothing:antialiased;overflow-x:hidden}
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  .en{font-family:"Barlow",sans-serif;letter-spacing:.18em}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 48px}
  .kick{font-family:"Barlow",sans-serif;font-size:12px;letter-spacing:.24em;color:var(--muted);font-weight:600;display:flex;align-items:center;gap:20px}
  .kick::after{content:"";width:44px;height:1px;background:var(--muted);opacity:.6}
  .kick.plain::after{display:none}
  .sec-h h2{font-size:clamp(30px,3.8vw,50px);font-weight:900;color:var(--navy);letter-spacing:.03em;line-height:1.25}
  .sec-desc{font-size:14px;color:var(--text)}
  .btn{display:inline-flex;align-items:center;gap:16px;padding:15px 28px;font-size:13px;font-weight:700;border:1px solid var(--navy);transition:.2s;font-family:inherit}
  .btn.solid{background:var(--navy);color:#fff}
  .btn.solid:hover{background:var(--navy-soft)}
  .btn.ghost{color:var(--navy)}
  .btn.ghost:hover{background:var(--navy);color:#fff}
  .btn.lg{padding:26px 44px;font-size:15px;gap:24px}
  .arrow-link{display:inline-flex;align-items:center;gap:18px;font-weight:700;color:var(--navy);font-size:14px;transition:gap .25s}
  .arrow-link:hover{gap:26px}

  /* ---------- header ---------- */
  header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid rgba(215,222,231,.6)}
  .nav{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;gap:40px;padding:18px 48px}
  .logo{display:inline-flex;align-items:center}
  .logo svg{height:30px;width:auto;flex:none}
  .nav-links{display:flex;gap:34px;margin-left:20px}
  .nav-cta{margin-left:auto;display:flex;gap:14px}
  .nav-cta .btn{padding:14px 26px;font-size:13px;gap:14px}
  .burger{display:none;margin-left:auto;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
  .burger span{width:26px;height:2px;background:var(--ink)}
  .nav-item{position:static}
  .nav-item > a{font-size:14px;font-weight:500;color:var(--ink);transition:color .2s;padding:16px 0;display:inline-flex;align-items:center;gap:7px;position:relative}
  .nav-item > a:hover{color:var(--red)}
  .nav-item.has-drop > a::after{content:"";width:6px;height:6px;border-right:1.5px solid var(--muted);border-bottom:1.5px solid var(--muted);transform:rotate(45deg) translateY(-2px);transition:.2s}
  .nav-item.has-drop:hover > a{color:var(--red);font-weight:700}
  .nav-item.has-drop:hover > a::after{border-color:var(--red)}
  .nav-item.has-drop:hover > a::before{content:"";position:absolute;left:0;right:13px;bottom:9px;height:2px;background:var(--red)}
  .mega{position:absolute;left:0;right:0;top:100%;background:var(--bg-gray);border-top:1px solid var(--line);box-shadow:0 34px 60px -34px rgba(20,35,63,.28);z-index:120;opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .2s ease,transform .2s ease,visibility .2s}
  .mega::before{content:"";position:absolute;left:0;right:0;top:-26px;height:26px}
  .nav-item.has-drop:hover .mega{opacity:1;visibility:visible;transform:translateY(0)}
  .mega-inner{max-width:var(--maxw);margin:0 auto;padding:46px 48px 52px}
  .mega-grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
  .mcard{position:relative;aspect-ratio:2/1;overflow:hidden;background:var(--navy);display:block}
  .mcard img{width:100%;height:100%;object-fit:cover;opacity:.7;transition:.3s}
  .mcard::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,35,63,.12),rgba(20,35,63,.78))}
  .mcard:hover img{opacity:.55;transform:scale(1.04)}
  .mcard .t{position:absolute;left:22px;bottom:22px;z-index:2;color:#fff;font-size:17px;font-weight:700;letter-spacing:.04em}
  .mcard .go{position:absolute;right:18px;bottom:16px;z-index:2;width:36px;height:36px;border:1px solid rgba(255,255,255,.55);border-radius:50%;display:grid;place-items:center;color:#fff;font-size:13px;transition:.2s}
  .mcard:hover .go{background:#fff;color:var(--navy);border-color:#fff}
  .msrow{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:start}
  .mslabel{font-family:"Barlow";font-size:12px;letter-spacing:.24em;color:var(--muted);font-weight:600;margin-bottom:18px}
  .mslist{display:flex;flex-direction:column}
  .msitem{display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;padding:17px 8px;border-top:1px solid var(--line);transition:background .15s}
  .mslist .msitem:last-child{border-bottom:1px solid var(--line)}
  .msitem:hover,.msitem.is-active{background:#fff}
  .msitem.is-active .ar{transform:translateX(4px)}
  .msitem .ar{transition:transform .15s}
  .msitem .n{font-family:"Barlow";font-size:21px;font-weight:300;color:var(--navy);border-right:1px solid var(--line);padding-right:22px}
  .msitem .tx b{display:block;font-size:16px;font-weight:700;color:var(--navy);margin-bottom:3px}
  .msitem .tx em{font-style:normal;font-size:12px;color:var(--muted)}
  .msitem .ar{color:var(--navy);font-size:15px}
  .msfeat img{width:100%;height:300px;object-fit:cover;margin-bottom:18px;transition:opacity .18s ease}
  .msfeat .fh h4,.msfeat p{transition:opacity .18s ease}
  .msfeat .fh{display:flex;align-items:baseline;gap:16px;margin-bottom:10px}
  .msfeat .fh .n{font-family:"Barlow";font-size:13px;letter-spacing:.12em;color:var(--muted)}
  .msfeat .fh h4{font-size:16px;font-weight:700;color:var(--navy)}
  .msfeat p{font-size:12.5px;color:var(--text);line-height:1.9}
  .msfeat .more{display:inline-flex;align-items:center;gap:14px;margin-top:16px;font-size:13px;font-weight:700;color:var(--navy)}
  .mmenu{display:none;position:fixed;inset:0;z-index:99;background:#fff;padding:100px 28px 40px;flex-direction:column;gap:8px}
  .mmenu.open{display:flex}
  .mmenu a{padding:16px 0;border-bottom:1px solid var(--line);font-weight:500;color:var(--ink)}
  .mmenu .btn{margin-top:20px;justify-content:center}

  /* ---------- hero ---------- */
  .sd-hero{padding-top:112px;padding-bottom:80px}
  .crumb{display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--muted);padding:24px 0 26px}
  .crumb .cur{color:var(--muted-2)}
  .sd-hero-top{display:grid;grid-template-columns:minmax(0,1fr) 360px 86px;gap:44px;align-items:start}
  .sd-hero-top .kick{margin-bottom:12px}
  .sd-hero-top h1{font-size:clamp(46px,8vw,104px);font-weight:900;color:var(--navy);line-height:1;letter-spacing:-.01em;white-space:nowrap}
  .sd-hero-top .en-sub{font-family:"Barlow";font-size:clamp(14px,1.5vw,22px);letter-spacing:.32em;color:var(--muted-2);font-weight:400;margin-top:16px}
  .sd-lead h2{font-size:clamp(20px,2.2vw,28px);font-weight:700;color:var(--navy);line-height:1.6;margin-bottom:16px}
  .sd-lead p{font-size:13.5px;color:var(--text);line-height:1.95}
  .sd-vlabel{font-family:"Barlow";font-size:11px;letter-spacing:.2em;color:var(--muted);line-height:2;white-space:nowrap;border-left:1px solid var(--line);padding-left:20px}
  .sd-shot{margin:44px calc(50% - 50vw) 0;height:clamp(360px,44vw,620px);overflow:hidden}
  .sd-shot img{width:100%;height:100%;object-fit:cover}
  .sd-proc{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:56px}
  .sd-proc .s{position:relative;padding-right:30px}
  .sd-proc .s .n{font-family:"Barlow";font-size:40px;font-weight:300;color:var(--navy)}
  .sd-proc .s .k{font-family:"Barlow";font-size:11px;letter-spacing:.2em;color:var(--muted);margin:6px 0 6px}
  .sd-proc .s h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:12px}
  .sd-proc .s h3::after{content:"";display:inline-block;width:56px;height:1px;background:var(--line);margin-left:16px;vertical-align:middle}
  .sd-proc .s p{font-size:12.5px;color:var(--text)}
  .sd-checks{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:56px;border-top:1px solid var(--line);padding-top:34px}
  .sd-check{display:grid;grid-template-columns:auto 1fr;gap:12px;font-size:12.5px;color:var(--text);line-height:1.8}
  .sd-check svg{width:16px;height:16px;color:var(--navy);margin-top:3px}
  .sd-hero-cta{text-align:center;margin:64px 0 0}

  /* ---------- sticky tabs ---------- */
  .sd-tabs{position:sticky;top:94px;z-index:80;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .sd-tabs .in{max-width:var(--maxw);margin:0 auto;padding:0 48px;display:flex}
  .sd-tabs a{flex:1;text-align:center;padding:22px 10px;font-size:14px;font-weight:500;color:var(--muted);border-left:1px solid var(--line);position:relative;transition:color .2s}
  .sd-tabs a:first-child{border-left:0}
  .sd-tabs a:hover{color:var(--navy)}
  .sd-tabs a.on{color:var(--navy);font-weight:700}
  .sd-tabs a.on::after{content:"";position:absolute;left:24%;right:24%;bottom:0;height:2px;background:var(--navy)}

  /* ---------- shared section ---------- */
  section.sd{padding:110px 0}
  section.sd[id],#contact{scroll-margin-top:180px}
  section.sd.gray{background:var(--bg-gray)}
  .sd-head{max-width:760px}
  .sd-head .kick{margin-bottom:26px}
  .sd-head h2{font-size:clamp(32px,4vw,52px);font-weight:900;color:var(--navy);letter-spacing:.03em;line-height:1.25;margin-bottom:20px}
  .sd-head p{font-size:14px;color:var(--text)}
  .sd-metarow{display:flex;justify-content:space-between;margin-top:64px;font-family:"Barlow";font-size:11px;letter-spacing:.2em;color:var(--muted);line-height:1.9}

  /* ABOUT — circular diagram */
  .about-grid{display:grid;grid-template-columns:0.78fr 1.22fr;gap:40px;align-items:center;margin-top:10px}
  .about-tx h2{font-size:clamp(32px,4vw,52px);font-weight:900;color:var(--navy);letter-spacing:.02em;line-height:1.35;margin:24px 0 24px}
  .about-tx p{font-size:13px;color:var(--text);line-height:2}
  .circ{position:relative;width:min(100%,340px);aspect-ratio:1;margin:76px auto;flex:none}
  .circ-ring{position:absolute;inset:0;border:1px solid var(--line);border-radius:50%}
  .circ-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:56%;aspect-ratio:1;border:1px solid var(--navy);border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:12px;background:#fff}
  .circ-core svg{width:74px;height:auto;margin-bottom:10px}
  .circ-core b{font-size:13px;font-weight:900;color:var(--navy);line-height:1.4}
  .circ-node{position:absolute;width:210px;text-align:center}
  .circ-node .cn{font-family:"Barlow";font-size:11px;color:var(--muted);letter-spacing:.1em}
  .circ-node h4{font-size:13.5px;font-weight:700;color:var(--navy);margin:4px 0 7px}
  .circ-node p{font-size:10.5px;color:var(--muted);line-height:1.65}
  .circ-node.t{left:50%;bottom:calc(100% + 16px);transform:translateX(-50%)}
  .circ-node.b{left:50%;top:calc(100% + 16px);transform:translateX(-50%)}
  .circ-node.l{right:calc(100% + 14px);top:50%;transform:translateY(-50%);text-align:right;width:150px}
  .circ-node.r{left:calc(100% + 14px);top:50%;transform:translateY(-50%);text-align:left;width:150px}

  /* COMMITMENT — 4 cols */
  .commit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:40px}
  .commit-c{padding:0 34px;border-left:1px solid var(--line)}
  .commit-c:first-child{border-left:0;padding-left:0}
  .commit-c .n{font-family:"Barlow";font-size:40px;font-weight:300;color:var(--muted-2)}
  .commit-c .n::after{content:"";display:block;width:26px;height:2px;background:var(--line);margin-top:10px}
  .commit-c .ic{margin:26px 0 22px;color:var(--navy)}
  .commit-c .ic svg{width:42px;height:42px}
  .commit-c h3{font-size:17px;font-weight:700;color:var(--navy);line-height:1.5;margin-bottom:16px}
  .commit-c p{font-size:12.5px;color:var(--text);line-height:1.95}

  /* TECH STACK — tree */
  .stack{text-align:center}
  .stack .kick{justify-content:center}
  .stack h2{font-size:clamp(32px,4vw,50px);font-weight:900;color:var(--navy);margin:18px 0 14px;letter-spacing:.04em}
  .stack .sub{font-size:14px;color:var(--text);margin-bottom:56px}
  .tree{max-width:1180px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:0}
  .tbox{width:100%;border:1px solid var(--line);background:#fff;padding:24px 24px}
  .tbox .th{display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:20px}
  .tbox .th b{font-size:16px;font-weight:700;color:var(--navy)}
  .tbox .th .en{font-family:"Barlow";font-size:10px;letter-spacing:.14em;color:var(--muted);border-left:1px solid var(--line);padding-left:12px}
  .tbox .items{display:flex;flex-wrap:nowrap;gap:0}
  .tbox .it{display:flex;flex-direction:column;align-items:center;gap:10px;flex:1 1 0;min-width:0;border-left:1px solid var(--line);padding:0 6px}
  .tbox .it:first-child{border-left:0}
  .tbox .it svg{width:22px;height:22px;color:var(--navy);flex:none}
  .tbox .it span{font-size:11px;color:var(--text);text-align:center;line-height:1.4}
  .tconn{width:1px;height:38px;background:var(--line)}
  .trow{display:grid;grid-template-columns:1fr auto 1fr;gap:36px;align-items:center;width:100%}
  .tcore{width:154px;height:154px;border:1px solid var(--navy);border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;flex:none;background:#fff}
  .tcore svg{width:88px;height:auto}
  .tcore .en{font-family:"Barlow";font-size:9px;letter-spacing:.18em;color:var(--muted);margin-top:12px;text-align:center;line-height:1.6}
  .trow2{display:grid;grid-template-columns:1fr 1fr;gap:40px;width:100%;margin-top:0}
  .stack .foot{display:flex;justify-content:space-between;max-width:1180px;margin:56px auto 0;font-size:12px;color:var(--text)}
  .stack .foot .en{font-family:"Barlow";font-size:11px;letter-spacing:.16em;color:var(--muted);line-height:1.9;text-align:right}

  /* SOLUTIONS — 10 item list */
  .sol-grid{display:grid;grid-template-columns:340px 1fr 1fr;gap:0 56px;align-items:start}
  .sol-head h2{font-size:clamp(40px,5vw,72px);font-weight:900;color:var(--navy);line-height:1.05;letter-spacing:.02em;margin-bottom:24px}
  .sol-head p{font-size:13.5px;color:var(--text);margin-bottom:34px}
  .sol-head .en{font-family:"Barlow";font-size:11px;letter-spacing:.2em;color:var(--muted);line-height:1.9;border-top:1px solid var(--line);padding-top:20px;display:inline-block}
  .sol-col{display:flex;flex-direction:column;border-top:1px solid var(--line)}
  .sol-row{display:grid;grid-template-columns:auto auto 1fr auto;gap:0 24px;align-items:center;padding:24px 6px;border-bottom:1px solid var(--line);transition:padding .15s,background .15s}
  .sol-row:hover{background:#fff;padding-left:16px}
  .sol-row .n{font-family:"Barlow";font-size:19px;font-weight:300;color:var(--muted);border-right:1px solid var(--line);padding-right:24px}
  .sol-row .ic svg{width:22px;height:22px;color:var(--navy)}
  .sol-row h4{font-size:15px;font-weight:700;color:var(--navy)}
  .sol-row .ar{color:var(--navy);font-size:14px}

  /* TEAM SCALING */
  .scale-h h2{font-size:clamp(34px,4.6vw,60px);font-weight:900;color:var(--navy);line-height:1.3;letter-spacing:.02em;margin:22px 0 26px}
  .scale-h p{font-size:13.5px;color:var(--text);line-height:2;max-width:1000px}
  .scale-line{position:relative;margin-top:120px}
  .scale-bar{position:relative;height:1px;background:var(--line)}
  .scale-bar::after{content:"";position:absolute;right:-2px;top:-4px;border:5px solid transparent;border-left-color:var(--navy);border-right:0}
  .scale-steps{display:grid;grid-template-columns:repeat(4,1fr);margin-top:0}
  .scale-s{position:relative;padding-top:0}
  .scale-s .num{font-family:"Barlow";font-size:34px;font-weight:300;color:var(--muted-2);position:absolute;top:-70px;left:0}
  .scale-s .dot{position:absolute;top:-4.5px;left:0;width:10px;height:10px;border-radius:50%;background:var(--navy)}
  .scale-s .drop{position:absolute;top:-26px;left:4.5px;width:1px;height:22px;background:var(--line)}
  .scale-s h4{font-size:16px;font-weight:700;color:var(--navy);margin-top:26px}
  .scale-s p{font-size:12px;color:var(--muted);margin-top:8px}
  .scale-s .arr{position:absolute;top:18px;right:24%;color:var(--muted-2);font-size:14px}

  /* PLAN DESIGN */
  .plan-h h2{font-size:clamp(34px,4.6vw,58px);font-weight:900;color:var(--navy);line-height:1.25;letter-spacing:.02em;margin:22px 0 22px}
  .plan-h p{font-size:13.5px;color:var(--text);line-height:2}
  .plan-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:50px}
  .plan-c{padding:0 30px;border-left:1px solid var(--line)}
  .plan-c:first-child{border-left:0;padding-left:0}
  .plan-c .n{display:flex;align-items:center;gap:16px;font-family:"Barlow";font-size:26px;font-weight:300;color:var(--muted)}
  .plan-c .n::after{content:"";flex:1;height:1px;background:var(--line)}
  .plan-c h3{font-size:19px;font-weight:900;color:var(--navy);margin:14px 0 22px}
  .plan-c ul{list-style:none;display:flex;flex-direction:column;gap:16px}
  .plan-c li{display:grid;grid-template-columns:auto 1fr;gap:14px;font-size:13px;color:var(--text);line-height:1.7}
  .plan-c li::before{content:"";width:14px;height:14px;border:1px solid var(--muted-2);border-radius:50%;margin-top:5px}

  /* CASE STUDIES */
  .cs-grid{display:grid;grid-template-columns:320px 1fr;gap:70px;margin-top:20px}
  .cs-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
  .cs-nav a{display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:center;padding:24px 4px;border-bottom:1px solid var(--line);color:var(--muted);position:relative}
  .cs-nav a .n{font-family:"Barlow";font-size:16px;letter-spacing:.1em;border-right:1px solid var(--line);padding-right:20px}
  .cs-nav a .t{font-size:14px;font-weight:700;line-height:1.5}
  .cs-nav a.on{color:var(--navy)}
  .cs-nav a.on .n{color:var(--navy)}
  .cs-nav a.on::before{content:"";position:absolute;left:-1px;top:14px;bottom:14px;width:3px;background:var(--navy)}
  .cs-nav .en{font-family:"Barlow";font-size:11px;letter-spacing:.2em;color:var(--muted);line-height:1.9;margin-top:50px}
  .cs-feat img{width:100%;height:330px;object-fit:cover;margin-bottom:24px}
  .cs-feat > h3{font-size:clamp(24px,2.6vw,34px);font-weight:900;color:var(--navy);letter-spacing:.02em;margin-bottom:28px}
  .cs-block{display:grid;grid-template-columns:180px 1fr;gap:20px;padding:22px 0;border-top:1px solid var(--line)}
  .cs-block .lb{font-family:"Barlow";font-size:12px;letter-spacing:.2em;color:var(--muted);display:flex;align-items:center;gap:14px}
  .cs-block .lb::after{content:"";flex:1;height:1px;background:var(--line)}
  .cs-block h4{font-size:15px;font-weight:700;color:var(--navy);margin-bottom:6px}
  .cs-block p{font-size:13px;color:var(--text);line-height:1.9}

  /* FLOW */
  .flow-in{margin-top:40px}
  .flow-phase{display:grid;grid-template-columns:300px 1fr;gap:0;border:1px solid var(--line);margin-bottom:26px}
  .fp-left{padding:44px 36px;border-right:1px solid var(--line)}
  .fp-left .bn{font-family:"Barlow";font-size:clamp(52px,6vw,84px);font-weight:300;color:var(--navy);line-height:1;display:block}
  .fp-left .u{display:block;width:30px;height:2px;background:var(--line);margin:20px 0 18px}
  .fp-left h3{font-size:22px;font-weight:900;color:var(--navy);line-height:1.4;margin-bottom:12px}
  .fp-left p{font-size:12.5px;color:var(--muted)}
  .fp-steps{padding:10px 0}
  .fp-step{display:grid;grid-template-columns:60px 1fr 1.4fr;gap:24px;align-items:start;padding:22px 40px;border-bottom:1px solid var(--line)}
  .fp-step:last-child{border-bottom:0}
  .fp-step .n{font-family:"Barlow";font-size:15px;color:var(--navy);letter-spacing:.1em;position:relative;padding-right:20px}
  .fp-step .n::after{content:"";position:absolute;right:0;top:2px;height:20px;width:1px;background:var(--line)}
  .fp-step h4{font-size:15.5px;font-weight:700;color:var(--ink)}
  .fp-step p{font-size:12.5px;color:var(--muted)}

  /* FAQ */
  .faq-sub{display:inline-flex;align-items:center;font-size:17px;font-weight:700;color:var(--navy);border-left:3px solid var(--navy);padding-left:16px;margin:30px 0 40px}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item:first-child{border-top:1px solid var(--line)}
  .faq-q{width:100%;background:none;border:0;cursor:pointer;display:grid;grid-template-columns:56px auto 1fr auto;align-items:center;gap:26px;padding:34px 4px;font-family:inherit;text-align:left}
  .faq-q .n{font-family:"Barlow";font-size:16px;color:var(--navy);letter-spacing:.1em;position:relative;padding-right:22px}
  .faq-q .n::after{content:"";position:absolute;right:0;top:0;bottom:0;width:1px;background:var(--line)}
  .faq-q .ql{font-family:"Barlow";font-size:15px;font-weight:700;color:var(--navy)}
  .faq-q .qt{font-size:17px;font-weight:700;color:var(--navy)}
  .faq-q .ic{font-size:20px;color:var(--navy);font-weight:300}
  .faq-a{display:none;grid-template-columns:56px auto 1fr;gap:26px;padding:0 4px 36px}
  .faq-item.open .faq-a{display:grid}
  .faq-a .al{font-family:"Barlow";font-size:15px;color:var(--muted);letter-spacing:.1em;text-align:center}
  .faq-a p{font-size:13.5px;color:var(--text);line-height:1.9;border-left:1px solid var(--line);padding-left:22px}

  /* CONTACT */
  .contact{background:var(--bg-gray);padding:120px 0;text-align:center}
  .contact .kick{justify-content:center;flex-direction:column;gap:0}
  .contact .kick::after{width:1px;height:44px;margin:22px 0 0}
  .contact h2{font-size:clamp(30px,3.8vw,46px);font-weight:900;color:var(--navy);line-height:1.5;letter-spacing:.03em;margin:34px 0 40px}
  .contact .note{font-size:12.5px;color:var(--muted);margin-top:22px}

  /* footer */
  footer{border-top:2px solid var(--navy);padding:72px 0 36px}
  .foot-grid{max-width:var(--maxw);margin:0 auto;padding:0 48px;display:grid;grid-template-columns:1fr 1fr;gap:60px}
  .foot-brand .logo{margin-bottom:30px}
  .foot-brand .logo svg{height:40px}
  .foot-brand h3{font-size:30px;font-weight:900;color:var(--navy);letter-spacing:.06em;margin-bottom:12px}
  .foot-brand p{font-size:13.5px;color:var(--text);margin-bottom:36px}
  .foot-nav{border-left:1px solid var(--line);padding-left:60px}
  .foot-nav ul{list-style:none;display:grid;grid-template-columns:repeat(4,auto);gap:20px 44px;margin-bottom:40px}
  .foot-nav ul a{font-size:13px;font-weight:500;color:var(--ink)}
  .foot-nav ul a:hover{color:var(--red)}
  .foot-bottom{max-width:var(--maxw);margin:40px auto 0;padding:24px 48px 0;border-top:1px solid var(--line);display:flex;align-items:center;gap:30px;font-size:11px;color:var(--muted);font-family:"Barlow";letter-spacing:.12em}
  .iso-badge{height:80px;width:auto;display:block}
  .foot-bottom .pp{border-left:1px solid var(--line);padding-left:30px;color:var(--ink)}

  /* ---------- responsive ---------- */
  @media(max-width:1100px){
    .wrap,.nav,.foot-grid,.sd-tabs .in{padding-left:26px;padding-right:26px}
    .nav-links,.nav-cta{display:none}
    .burger{display:flex}
    .sd-hero-top{grid-template-columns:1fr}
    .sd-vlabel{border-left:0;padding-left:0}
    .sd-proc,.sd-checks,.commit-grid,.plan-grid,.scale-steps{grid-template-columns:1fr 1fr;gap:34px 24px}
    .sd-proc .s{padding-right:0}
    .about-grid,.sol-grid,.cs-grid,.trow2{grid-template-columns:1fr;gap:40px}
    .trow{grid-template-columns:1fr;gap:24px}
    .about-grid{gap:20px}
    .circ{width:min(100%,300px);margin:80px auto}
    .sol-grid{gap:30px}
    .sd-tabs{display:none}
    .commit-c,.plan-c{border-left:0;padding:0}
    .flow-phase{grid-template-columns:1fr}
    .fp-left{border-right:0;border-bottom:1px solid var(--line)}
    .fp-step{grid-template-columns:46px 1fr;padding:20px 22px}
    .fp-step p{grid-column:1/-1}
    .foot-grid{grid-template-columns:1fr}
    .foot-nav{border-left:0;padding-left:0}
    .foot-nav ul{grid-template-columns:repeat(2,auto)}
    .stack .tbox .items{gap:20px}
    .stack .tbox .it{min-width:70px}
  }
  @media(max-width:620px){
    .sd-proc,.sd-checks,.commit-grid,.plan-grid,.scale-steps,.sol-col{grid-template-columns:1fr}
    .circ{width:auto;aspect-ratio:auto;margin:24px 0;display:flex;flex-direction:column;gap:20px}
    .circ-ring{display:none}
    .circ-core{position:static;transform:none;width:100%;aspect-ratio:auto;border-radius:0;border:0;border-left:2px solid var(--navy);align-items:flex-start;text-align:left;padding:0 0 0 16px}
    .circ-core svg{width:88px}
    .circ-node{position:static!important;width:auto!important;transform:none!important;text-align:left!important}
    .faq-q{grid-template-columns:36px auto 1fr auto;gap:14px}
    .foot-bottom{flex-wrap:wrap;gap:14px}
  }

  /* ---------- motion ---------- */
  body{animation:pgin .5s ease both}
  @keyframes pgin{from{opacity:0}to{opacity:1}}
  .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1)}
  .reveal.in{opacity:1;transform:none}
  .reveal:nth-child(2){transition-delay:.05s}
  .reveal:nth-child(3){transition-delay:.1s}
  .reveal:nth-child(4){transition-delay:.15s}
  .reveal:nth-child(5){transition-delay:.2s}
  .reveal:nth-child(6){transition-delay:.25s}
  @media(prefers-reduced-motion:reduce){
    body{animation:none}
    .reveal{opacity:1;transform:none;transition:none}
  }
  /* typing reveal for big titles */
  .ty{visibility:hidden}
  .ty.ty-init{visibility:visible}
  .ty .ty-c{opacity:0}
  .ty .ty-c.on{opacity:1;transition:opacity .1s linear}
  .ty .ty-caret{display:inline-block;width:3px;height:.92em;background:var(--red);border-radius:1px;margin:0 .04em -.03em .07em;animation:tycaret .78s steps(1,end) infinite}
  @keyframes tycaret{0%,49%{opacity:1}50%,100%{opacity:0}}
  .ty.ty-done .ty-caret{opacity:0;animation:none;transition:opacity .35s ease}
  @media(prefers-reduced-motion:reduce){
    .ty,.ty.ty-init{visibility:visible}
    .ty .ty-c{opacity:1}
    .ty .ty-caret{display:none}
  }
  /* サービスメニュー: hover でプレビュー画像をズーム */
  .msfeat{overflow:hidden}
  .msfeat img{transition:opacity .18s ease,transform .55s cubic-bezier(.2,.6,.2,1)}
  .msrow:hover .msfeat img{transform:scale(1.06)}

  /* ---------- service hero (shared style) ---------- */
  .shero{--sac:#121212;position:relative;overflow:hidden;background:#fff;padding:132px 0 58px}
  .shero .crumb{max-width:var(--maxw);margin:0 auto 26px;padding:0 48px}
  .shero-grid{max-width:var(--maxw);margin:0 auto;padding:0 48px;display:grid;
    grid-template-columns:minmax(0,0.78fr) minmax(0,1.12fr) 320px;gap:0 44px;align-items:start;position:relative}
  .shero-l{padding-right:38px;padding-top:6px}
  .shero-kick{font-family:"Barlow",sans-serif;font-size:13px;letter-spacing:.24em;color:var(--navy);font-weight:600;
    display:flex;align-items:center;gap:16px;margin-bottom:36px}
  .shero-kick::before{content:"";width:46px;height:1px;background:var(--navy)}
  .shero-l h1{font-size:clamp(34px,3.4vw,50px);font-weight:900;color:var(--navy);line-height:1.2;letter-spacing:.02em;margin-bottom:24px}
  .shero-sub{font-size:clamp(16px,1.5vw,20px);font-weight:900;color:var(--navy);line-height:1.6;margin-bottom:22px}
  .shero-lead{font-size:14px;color:var(--text);line-height:2.05;margin-bottom:36px;max-width:360px}
  .shero-cta{display:inline-flex;align-items:center;gap:32px;padding:23px 34px;font-size:14px;font-weight:700;
    background:var(--navy);color:#fff;border:1px solid var(--navy);transition:.2s;font-family:inherit}
  .shero-cta:hover{background:var(--navy-soft,#1c3057)}

  .shero-c{position:relative;align-self:stretch;min-height:clamp(460px,44vw,620px)}
  .shero-c .ent{position:absolute;left:-5%;top:44px;font-family:"Barlow",sans-serif;font-size:11px;letter-spacing:.16em;line-height:2.3;color:var(--muted);z-index:3}
  .shero-c .ent::after{content:"";display:block;width:26px;height:1px;background:var(--muted-2);margin-top:14px}
  .shero-photo{position:relative;margin-left:4%;height:clamp(460px,44vw,620px);
    clip-path:polygon(15% 0,100% 0,85% 100%,0 100%)}
  .shero-photo img{width:100%;height:100%;object-fit:cover;filter:contrast(1.04) brightness(1.02)}
  .shero-shape{position:absolute;right:-3%;top:22%;width:50%;height:64%;
    background:linear-gradient(135deg,rgba(17,17,17,.62),rgba(17,17,17,.16));
    clip-path:polygon(34% 0,100% 0,66% 100%,0 100%);pointer-events:none}
  .shero-shape.s2{right:4%;top:54%;width:28%;height:38%;opacity:.5}

  .shero-r{position:relative;padding-top:104px}
  .shero-steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:30px}
  .shero-steps li{display:grid;grid-template-columns:auto 18px minmax(0,1fr);gap:12px;align-items:start}
  .shero-steps .sn{font-family:"Barlow",sans-serif;font-size:21px;font-weight:600;color:var(--navy);line-height:1}
  .shero-steps .sl{height:1px;background:var(--line);margin-top:13px}
  .shero-steps b{display:block;font-size:14.5px;font-weight:700;color:var(--navy);margin-bottom:6px;letter-spacing:.02em}
  .shero-steps em{font-style:normal;font-size:11.5px;color:var(--muted);line-height:1.85;white-space:nowrap}

  @media(max-width:1180px){
    .shero-grid{grid-template-columns:1fr;gap:46px}
    .shero-l{padding-right:0}
    .shero-c{min-height:0}
    .shero-photo{margin-left:0;height:clamp(300px,58vw,440px);clip-path:polygon(9% 0,100% 0,91% 100%,0 100%)}
    .shero-shape{right:-6%}
    .shero-r{padding-top:0}
    .shero-steps{display:grid;grid-template-columns:1fr 1fr;gap:26px 30px}
    .shero-steps em{white-space:normal}
  }
  @media(max-width:600px){
    .shero-steps{grid-template-columns:1fr}
    .shero-photo{clip-path:none;height:260px}
    .shero-shape{display:none}
  }
  .sd-hero-after{border-top:1px solid var(--line);padding-top:70px}

/* ---------- スマホ対応の追加調整 ---------- */
@media(max-width:620px){
  /* 技術スタック：横一列をやめて3列で折り返す */
  .tbox .th{flex-wrap:wrap;gap:4px 12px}
  .stack .tbox .items{flex-wrap:wrap;gap:18px 0}
  .stack .tbox .it{flex:0 0 33.333%;min-width:0;padding:0 4px}
  .stack .tbox .it:nth-child(3n+1){border-left:0}
}
@media(max-width:620px){
  /* チーム体制：番号が上の段に重なるため、横タイムラインを縦のリストにする */
  .scale-line{margin-top:40px}
  .scale-bar{display:none}
  .scale-steps{grid-template-columns:1fr;gap:0}
  .scale-s{padding:18px 0 18px 56px;border-top:1px solid var(--line)}
  .scale-s .num{top:14px;font-size:26px}
  .scale-s .dot,.scale-s .drop,.scale-s .arr{display:none}
  .scale-s h4{margin-top:0}

  /* 技術スタック下の一文 */
  .stack .foot{flex-direction:column;align-items:center;gap:14px;text-align:center}
  .stack .foot .en{text-align:center}

  /* 開発事例：ラベルと本文を縦積み */
  .cs-block{grid-template-columns:1fr;gap:10px}
}