:root{
  --ink:#03006A;
  --ink-deep:#020045;
  --accent:#E81067;
  --accent-dark:#C40C56;
  --gray:#F5F5F8;
  --line:#E3E2EC;
  --sub:#5F5D80;
  --white:#FFFFFF;
  --nav-w:220px;
  --fixbar-h:60px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic Medium","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:var(--white);line-height:1.9;font-size:15px;font-weight:400;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.en{font-family:"Karla",sans-serif;letter-spacing:.04em}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.sp{display:none}

/* ---------- links & buttons ---------- */
.tlink{position:relative;display:inline-block;padding-bottom:3px;font-size:15px;letter-spacing:.04em;transition:color .2s}
.tlink::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:currentColor;transform:scaleX(1);transform-origin:right;transition:transform .3s}
.tlink:hover{color:var(--accent)}
.tlink:hover::after{transform:scaleX(0)}
.tlink:hover::before{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--accent);animation:ulin .3s .15s both}
@keyframes ulin{from{transform:scaleX(0);transform-origin:left}to{transform:scaleX(1);transform-origin:left}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:56px;padding:0 36px;background:var(--accent);color:var(--white);font-weight:700;font-size:15px;letter-spacing:.06em;transition:background .2s,transform .2s}
.btn:hover{background:var(--accent-dark)}
.sec-cta{margin-top:56px;display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.sec-cta .note{font-size:13px;color:var(--sub)}

/* ---------- fixed left nav ---------- */
.sidenav{position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);padding:32px 36px;z-index:20;display:flex;flex-direction:column;justify-content:space-between;border-right:1px solid var(--line);background:var(--white);overflow-y:auto}
.logo{display:block}
.logo-img{display:block;width:104px;height:auto}
.sidenav ul{margin-top:44px}
.sidenav li{margin-bottom:6px}
.sidenav li a{display:block;padding:8px 0 8px 18px;margin-left:-18px;font-family:"Karla",sans-serif;font-size:14px;letter-spacing:.08em;color:var(--ink);position:relative;transition:color .2s}
.sidenav li a::before{content:"";position:absolute;left:0;top:50%;width:0;height:1px;background:var(--accent);transition:width .25s}
.sidenav li a:hover,.sidenav li a.active{color:var(--accent);font-weight:700}
.sidenav li a:hover::before,.sidenav li a.active::before{width:12px}
.sidenav .cta{display:inline-block;font-family:"Karla",sans-serif;font-size:12px;letter-spacing:.1em;font-weight:700;color:var(--accent);border-bottom:1px solid var(--accent);padding:10px 0 4px}
.social{display:flex;gap:4px;margin-top:16px;margin-left:-11px}
.social a{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;color:var(--sub);transition:color .2s}
.social a:hover{color:var(--accent)}
.social-light a{color:rgba(255,255,255,.75)}
.social-light a:hover{color:var(--white)}

.topbar,.drawer,.fixbar,.sol-toggle,.faq-more,.vlist-toggle{display:none}

main{margin-left:var(--nav-w)}
.inner{max-width:1120px;margin:0 auto}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding:120px 8vw 96px}
.hero-ink{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.ink-layer{position:absolute;inset:-6%;will-change:transform;transform:translate3d(calc(var(--mx,0) * var(--px,0px)),calc(var(--my,0) * var(--px,0px)),0);transition:transform .9s cubic-bezier(.2,.7,.2,1)}
.ink-layer.l1{--px:-14px;animation:inkIn 2.4s cubic-bezier(.16,1,.3,1) both}
.ink-layer.l2{--px:-28px;animation:inkIn 2.8s .15s cubic-bezier(.16,1,.3,1) both}
.ink-drift{position:absolute;inset:0;will-change:transform;transform-origin:78% 45%}
.ink-drift svg{width:100%;height:100%;display:block}
.d1{animation:drift1 26s ease-in-out infinite}
.d2{animation:drift2 34s ease-in-out infinite}
.ink-layer.l1{opacity:.88}
.ink-layer.l3{--px:-40px;animation:none}
.d3{animation:drift1 40s ease-in-out infinite reverse}
.net{width:100%;height:100%;display:block}
.net-lines line{animation:netDraw 1.6s cubic-bezier(.4,0,.2,1) forwards}
.net-nodes circle,.net-packets circle{opacity:0;animation:netIn .8s ease forwards}
.net-packets circle{animation-delay:3.2s}
.hub-ring{transform-origin:1150px 430px;transform-box:view-box;animation:netIn 1s 2s ease forwards,hubPulse 4s 3s ease-in-out infinite}
@keyframes netDraw{to{stroke-dashoffset:0}}
@keyframes netIn{to{opacity:1}}
@keyframes hubPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.6);opacity:.25}}
@media(prefers-reduced-motion:reduce){.net-lines line{stroke-dashoffset:0!important;animation:none}.net-nodes circle{opacity:1;animation:none}.net-packets{display:none}.hub-ring{animation:none}}
@keyframes inkIn{0%{opacity:0;transform:translate3d(6%,-2%,0) scale(.82)}100%{opacity:1}}
@keyframes drift1{0%,100%{transform:translate3d(0,0,0) scale(1) rotate(0deg)}33%{transform:translate3d(-1.5%,1.2%,0) scale(1.04) rotate(-1.2deg)}66%{transform:translate3d(1%,-1.4%,0) scale(1.02) rotate(.8deg)}}
@keyframes drift2{0%,100%{transform:translate3d(0,0,0) scale(1) rotate(0deg)}40%{transform:translate3d(1.6%,1%,0) scale(1.05) rotate(1.5deg)}70%{transform:translate3d(-1.2%,-1%,0) scale(.98) rotate(-1deg)}}
@media(prefers-reduced-motion:reduce){.ink-layer,.ink-drift{animation:none!important;transition:none}}
.hero-body{position:relative;z-index:1;max-width:720px}
.eyebrow{font-size:13px;letter-spacing:.14em;font-weight:500;color:var(--sub);margin-bottom:28px}
.hero h1{font-size:clamp(34px,4.6vw,60px);font-weight:500;letter-spacing:.08em;line-height:1.5;color:var(--ink)}
.hero-sub{margin-top:32px;font-size:17px;letter-spacing:.05em;font-weight:500;line-height:2}
.hero-sub2{margin-top:16px;font-size:15px;letter-spacing:.04em;line-height:2;color:var(--sub)}
.hero-cta{margin-top:40px;display:flex;align-items:center;gap:32px;flex-wrap:wrap}
.hero-anchors{margin-top:36px;display:flex;gap:32px;flex-wrap:wrap}
.hero-anchors a{font-size:13px;letter-spacing:.06em;color:var(--sub);display:inline-flex;align-items:center;gap:10px;min-height:44px}
.hero-anchors a::before{content:"";width:20px;height:1px;background:var(--sub)}
.hero-anchors a:hover{color:var(--accent)}
.hero .scroll{position:absolute;left:8vw;bottom:32px;font-family:"Karla",sans-serif;font-size:11px;letter-spacing:.2em;color:var(--sub);display:flex;align-items:center;gap:14px}
.hero .scroll::after{content:"";width:48px;height:1px;background:var(--sub)}

/* ---------- section commons ---------- */
section.block{padding:128px 8vw}
.gray{background:var(--gray)}
.sec-head{margin-bottom:64px}
.sec-head .en{display:block;font-family:"Karla",sans-serif;font-size:12px;letter-spacing:.25em;color:var(--sub);margin-bottom:14px}
.sec-head h2{font-size:clamp(26px,2.4vw,32px);font-weight:700;letter-spacing:.06em;line-height:1.5;color:var(--ink)}
.lead{font-size:clamp(22px,2vw,26px);font-weight:500;letter-spacing:.06em;line-height:1.75;max-width:760px}
.body-txt{font-size:15px;line-height:2;max-width:640px}
.num{font-family:"Karla",sans-serif;font-size:13px;letter-spacing:.15em;color:var(--sub)}
.lbl{font-family:"Karla",sans-serif;font-size:12px;letter-spacing:.25em;color:var(--sub)}

/* ABOUT: Mission / Vision / Value */
.phil{border-top:1px solid var(--line)}
.phil-row{display:grid;grid-template-columns:200px 1fr;gap:48px;padding:64px 0;border-bottom:1px solid var(--line)}
.phil-row .lbl .en{display:block;font-family:"Karla",sans-serif;font-size:13px;letter-spacing:.25em;color:var(--sub)}
.phil-row .lbl .jp{display:block;font-size:13px;letter-spacing:.1em;color:var(--sub);margin-top:8px}
.phil-row .stmt{font-size:clamp(24px,2.6vw,34px);font-weight:500;letter-spacing:.06em;line-height:1.75}
.phil-row.is-mission .stmt{font-size:clamp(30px,3.6vw,46px);letter-spacing:.08em;line-height:1.7}
.phil-row .sup{margin-top:28px;font-size:15px;line-height:2;letter-spacing:.04em;max-width:640px}
.phil-row .sup p+p{margin-top:20px}
.vlist{margin-top:36px;max-width:720px}
.vlist li{padding:22px 0;border-bottom:1px solid var(--line)}
.vlist li:last-child{border-bottom:0}
.vlist h3{display:flex;align-items:baseline;gap:18px;font-size:17px;font-weight:700;letter-spacing:.05em;line-height:1.7}
.vlist h3 .num{flex:none}
.vlist p{font-size:15px;line-height:1.9;margin-top:8px;padding-left:44px}

/* SERVICES */
.sol-list{border-top:1px solid var(--line)}
.sol-item{display:grid;grid-template-columns:100px 1.1fr 1fr;gap:40px;padding:44px 0;border-bottom:1px solid var(--line);align-items:start}
.sol-item .num{padding-top:6px}
.sol-item h3{font-size:20px;font-weight:700;letter-spacing:.05em;line-height:1.5}
.sol-item h3 small{display:block;font-family:"Karla",sans-serif;font-size:11px;letter-spacing:.15em;color:var(--sub);margin-top:6px;font-weight:400}
.sol-item .desc{font-size:15px;line-height:2;margin-top:12px}
.sol-item ul{max-width:420px}
.sol-item ul li{font-size:15px;line-height:1.9;padding:4px 0 4px 18px;position:relative;letter-spacing:.03em}
.sol-item ul li::before{content:"";position:absolute;left:0;top:18px;width:8px;height:1px;background:var(--sub)}

/* WORKS */
.works{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.work{background:var(--white);border:1px solid var(--line);padding:32px 28px 28px;display:grid;grid-template-rows:auto auto 1fr auto;grid-row:span 4;row-gap:0}
@supports(grid-template-rows:subgrid){.work{grid-template-rows:subgrid}}
.work .tag{display:inline-block;justify-self:start;font-size:12px;letter-spacing:.1em;color:var(--sub);border:1px solid var(--line);padding:4px 12px;margin-bottom:22px}
.work h3{font-size:18px;font-weight:700;letter-spacing:.04em;line-height:1.6;min-height:calc(18px*1.6*2)}
.work dl{margin-top:22px;display:grid;grid-template-columns:52px 1fr;gap:10px 16px;font-size:15px;line-height:1.9;align-content:start}
.work dt{color:var(--sub);font-size:13px;letter-spacing:.1em;padding-top:3px}
.work .results{align-self:start;padding-top:24px;display:flex;gap:28px;border-top:1px solid var(--line);margin-top:28px}
.work .results b{display:block;font-family:"Karla",sans-serif;font-size:36px;font-weight:700;line-height:1;letter-spacing:.02em}
.work .results b small{font-size:18px;margin-left:2px}
.work .results span{display:block;font-size:12px;color:var(--sub);margin-top:8px;letter-spacing:.04em;white-space:nowrap}
.works-note{margin-top:20px;font-size:13px;color:var(--sub)}

/* APPROACH (numbered list) */
.steps{border-top:1px solid var(--line)}
.step{display:grid;grid-template-columns:90px 170px 1fr 380px;gap:32px;padding:36px 0;border-bottom:1px solid var(--line);align-items:center}
.step .num{padding-top:2px}
.step h3{font-size:20px;font-weight:700;letter-spacing:.06em;line-height:1.5}
.step p{font-size:15px;line-height:2}
.step dl{display:grid;grid-template-columns:96px 1fr;gap:8px 16px;font-size:14px;line-height:1.8}
.step dt{color:var(--sub);font-size:12px;letter-spacing:.12em;padding-top:4px;white-space:nowrap}
.step dd{white-space:nowrap}

/* WHY */
.why{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
.why-list li{padding:32px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:60px 1fr;gap:20px}
.why-list li:first-child{border-top:1px solid var(--line)}
.why-list .num{padding-top:6px}
.why-list h3{font-size:19px;font-weight:700;letter-spacing:.05em;margin-bottom:10px}
.why-list p{font-size:15px;line-height:1.9}

/* MESSAGE */
.message{max-width:800px}
.message .stmt{font-size:clamp(24px,2.6vw,34px);font-weight:500;letter-spacing:.06em;line-height:1.75;margin-bottom:32px}
.message p{font-size:15px;line-height:2.1}
.message p+p{margin-top:20px}
.message .sign{margin-top:32px;font-size:13px;letter-spacing:.1em;color:var(--sub)}
.msg-quote{font-weight:700;padding-left:20px;border-left:2px solid var(--ink)}
.msg-more{display:none}
.message.expanded .msg-more{display:block}
.msg-toggle{display:inline-flex;align-items:center;gap:10px;margin-top:24px;min-height:44px;font-size:15px;font-weight:700;color:var(--ink)}
.msg-toggle::after{content:"+";font-family:"Karla",sans-serif;font-size:18px;color:var(--sub)}
.msg-toggle:hover{color:var(--accent)}
.message.expanded .msg-toggle{display:none}

/* COMPANY */
.company{display:grid;grid-template-columns:580px minmax(0,1fr);gap:40px;align-items:start}
.company dl{border-top:1px solid var(--line)}
.company .addr{white-space:nowrap}
.company .row{display:grid;grid-template-columns:110px 1fr;padding:18px 0;border-bottom:1px solid var(--line);font-size:15px}
.company dt{font-size:13px;letter-spacing:.1em;color:var(--sub);padding-top:3px}
.company dd{letter-spacing:.03em;line-height:1.9}
.map iframe{width:100%;height:360px;border:0;display:block;filter:grayscale(.15)}
.map-links{margin-top:16px}

/* FAQ */
.faq details{border-bottom:1px solid var(--line)}
.faq details:first-of-type{border-top:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;font-size:16px;font-weight:700;letter-spacing:.04em;line-height:1.7;position:relative;min-height:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-family:"Karla",sans-serif;font-size:22px;color:var(--sub);transition:transform .25s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq .ans{font-size:15px;line-height:2;padding:0 0 24px;max-width:720px}

/* CONTACT */
.contact{background:var(--ink);color:var(--white);padding:128px 8vw}
.contact .sec-head .en{color:rgba(255,255,255,.6)}
.contact .sec-head h2{color:var(--white);font-size:clamp(28px,3vw,40px)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end}
.contact .body-txt{color:rgba(255,255,255,.85)}
.contact-info{font-size:15px;line-height:2.2}
.contact-info .lbl{display:block;margin-top:20px;color:rgba(255,255,255,.55)}
.contact-info a{border-bottom:1px solid rgba(255,255,255,.4)}
.contact .cta-row{margin-top:36px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.contact .cta-row .note{font-size:13px;color:rgba(255,255,255,.7)}
.contact .social{margin-top:28px}

/* FOOTER */
footer{background:var(--gray);color:var(--ink);padding:64px 8vw 32px;border-top:1px solid var(--line)}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;font-size:14px;line-height:2}
.foot-logo{display:block;width:220px;height:auto;margin-bottom:20px}
.foot h4{font-family:"Karla",sans-serif;font-size:11px;letter-spacing:.25em;color:var(--sub);margin-bottom:10px}
.foot a{display:inline-block;min-height:32px;color:var(--ink)}
.foot a:hover{color:var(--accent)}
.copy{margin-top:48px;padding-top:24px;border-top:1px solid var(--line);font-family:"Karla",sans-serif;font-size:11px;letter-spacing:.1em;color:var(--sub)}

/* reveal */
.rv{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.rv.on{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:1100px){
  .works{grid-template-columns:1fr}
  .work{grid-template-rows:auto auto auto auto!important;grid-row:auto}
  .work h3{min-height:0}
  .step{grid-template-columns:90px 1fr;gap:12px 32px;align-items:start}
  .step .num{padding-top:6px}
  .step p,.step dl{grid-column:2}
  .step dl{margin-top:4px}
}
@media(max-width:900px){
  :root{--nav-w:0px}
  body{padding-bottom:var(--fixbar-h)}
  .sidenav{display:none}
  .sp{display:inline}
  /* header */
  .topbar{display:flex;position:fixed;top:0;left:0;right:0;z-index:30;height:64px;align-items:center;justify-content:space-between;padding:0 16px 0 20px;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
  .topbar .logo-img{width:auto;height:44px}
  .burger{width:44px;height:44px;position:relative}
  .burger i{position:absolute;left:10px;right:10px;height:1.5px;background:var(--ink);transition:transform .25s,opacity .25s}
  .burger i:nth-child(1){top:15px}.burger i:nth-child(2){top:22px}.burger i:nth-child(3){top:29px}
  body.menu-open .burger i:nth-child(1){transform:translateY(7px) rotate(45deg)}
  body.menu-open .burger i:nth-child(2){opacity:0}
  body.menu-open .burger i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  /* drawer */
  .drawer{position:fixed;inset:0;background:var(--white);z-index:29;padding:88px 24px 32px;display:none;flex-direction:column;overflow-y:auto}
  .drawer.open{display:flex}
  .drawer nav a{display:flex;align-items:baseline;gap:14px;min-height:56px;padding:14px 0;border-bottom:1px solid var(--line);font-family:"Karla",sans-serif;font-size:18px;letter-spacing:.12em;color:var(--ink)}
  .drawer nav a small{font-family:"Noto Sans JP",sans-serif;font-size:12px;letter-spacing:.08em;color:var(--sub)}
  .drawer .btn{width:100%;margin-top:28px}
  .drawer .tel{display:block;text-align:center;margin-top:16px;font-size:15px;letter-spacing:.06em;min-height:44px;line-height:44px}
  .drawer .social{justify-content:center;margin-left:0}
  /* fixed bottom cta */
  .fixbar{position:fixed;left:0;right:0;bottom:0;height:var(--fixbar-h);z-index:28;display:flex;transform:translateY(100%);transition:transform .3s}
  .fixbar.show{transform:none}
  .fixbar-tel{width:64px;display:flex;align-items:center;justify-content:center;background:var(--ink);color:var(--white)}
  .fixbar-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:12px;background:var(--accent);color:var(--white);font-weight:700;font-size:15px;letter-spacing:.06em}
  main{margin-left:0}
  /* hero */
  .hero{min-height:0;padding:104px 20px 56px}
  .hero-ink{left:26%;right:-4%;top:-10px;bottom:auto;height:470px;background:url(/ink-mobile-v2.webp) center top/cover no-repeat;opacity:.6}
  .hero-body{position:relative}
  .hero-body::before{content:"";position:absolute;inset:-16px -12px -16px -20px;z-index:-1;background:linear-gradient(90deg,rgba(255,255,255,.9) 0%,rgba(255,255,255,.75) 55%,rgba(255,255,255,0) 100%)}
  .ink-layer.l1,.ink-layer.l2{display:none}
  .ink-layer.l3{animation:none;transition:none;transform:none}
  .ink-drift.d3{animation:none}
  .net-lines line{animation:none;stroke-dashoffset:0!important}
  .net-nodes circle{opacity:1;animation:none}
  .hub-ring{animation:none}
  .net-packets{display:none}
  .eyebrow{font-size:11px;letter-spacing:.06em;margin-bottom:20px;white-space:nowrap}
  .hero h1{font-size:27px;letter-spacing:.04em}
  .hero-sub{font-size:12.5px;letter-spacing:0;line-height:2;margin-top:24px}
  .hero-sub2{font-size:13px;letter-spacing:0;line-height:1.9;margin-top:12px}
  .hero-cta{margin-top:28px}
  .hero-cta .btn{width:100%}
  .hero-anchors{margin-top:12px;gap:20px}
  .hero .scroll{display:none}
  /* sections */
  section.block,.contact{padding:64px 24px}
  .sec-head{margin-bottom:32px}
  .sec-head h2{font-size:24px}
  .lead{font-size:20px}
  .sec-cta{margin-top:36px}
  .phil-row{grid-template-columns:1fr;gap:16px;padding:40px 0}
  .phil-row .stmt{font-size:22px}
  .phil-row.is-mission .stmt{font-size:27px}
  .phil-row .sup{margin-top:20px}
  .vlist li{position:relative;padding:14px 0}
  .vlist h3{padding-right:44px;font-size:16px}
  .vlist p{display:none;padding-left:0;font-size:14px;margin-top:10px}
  .vlist li.open p{display:block}
  .vlist-toggle{display:block;position:absolute;right:-8px;top:8px;width:44px;height:44px;font-size:0}
  .vlist-toggle::after{content:"+";font-family:"Karla",sans-serif;font-size:20px;color:var(--sub)}
  .vlist li.open .vlist-toggle::after{content:"‘2"}
  /* services accordion */
  .sol-item{grid-template-columns:36px 1fr;gap:4px 12px;padding:18px 0}
  .sol-item .num{padding-top:4px;grid-row:1/3}
  .sol-item h3{font-size:17px}
  .sol-item h3 small{margin-top:4px}
  .sol-item .desc{display:none;margin-top:10px;font-size:14px;line-height:1.8}
  .sol-item.open .desc{display:block}
  .sol-item ul{display:none;grid-column:2;margin-top:4px;padding-top:10px;border-top:1px dashed var(--line)}
  .sol-item.open ul{display:block}
  .sol-item .sol-toggle{margin-top:2px}
  .sol-toggle{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink);font-weight:700;min-height:44px}
  .sol-toggle::after{content:"+";font-family:"Karla",sans-serif;font-size:18px;color:var(--sub)}
  .sol-item.open .sol-toggle::after{content:"\2212"}
  /* works */
  .work{padding:24px 20px 20px}
  .work dl{margin-top:16px;font-size:14px}
  .work h3{font-size:18px}
  .work .results b{font-size:32px}
  /* approach: horizontal scroll */
  .steps{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;border:0;padding-bottom:12px;margin:0 -24px;padding-left:24px;padding-right:24px;-webkit-overflow-scrolling:touch}
  .step{flex:0 0 320px;scroll-snap-align:start;display:block;padding:24px 20px;border:1px solid var(--line);background:var(--white)}
  .step h3{margin:10px 0 8px;font-size:18px}
  .step p{font-size:14px;line-height:1.8}
  .step dl{grid-template-columns:76px 1fr;gap:6px 10px;font-size:13px;margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
  .step dd{white-space:normal}
  .steps-hint{display:block;font-size:12px;color:var(--sub);margin-top:4px}
  /* why */
  .why{grid-template-columns:1fr;gap:32px}
  .why-list li{padding:16px 0;grid-template-columns:40px 1fr;gap:10px}
  .why .body-txt{font-size:14px;line-height:1.9}
  .why-list p{font-size:14px}
  .message p{font-size:14px;line-height:2}
  /* company */
  .company{grid-template-columns:1fr;gap:32px}
  .company .addr{white-space:normal}
  .company .row{grid-template-columns:90px 1fr;padding:14px 0;font-size:14px}
  .map iframe{height:260px}
  /* faq */
  .faq summary{font-size:15px;padding:16px 36px 16px 0;line-height:1.6}
  .faq .ans{font-size:14px;line-height:1.9;padding-bottom:18px}
  .faq details.more{display:none}
  .faq.expanded details.more{display:block}
  .faq-more{display:inline-flex;align-items:center;gap:8px;margin-top:20px;min-height:44px;font-size:14px;font-weight:700}
  .faq-more::after{content:"+";font-family:"Karla",sans-serif;color:var(--sub)}
  .faq.expanded .faq-more{display:none}
  /* contact */
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .contact .btn{width:100%}
  /* footer */
  .foot{grid-template-columns:1fr;gap:28px}
  .foot-logo{width:200px}
  footer{padding:48px 24px 24px}
}
@media(min-width:901px){
  .steps-hint{display:none}
  .sol-item ul{display:block!important}
}

/* ---------- 下層ページ共通 ---------- */
.page-head{padding:112px 8vw 56px}
.page-head .en{display:block;font-family:"Karla",sans-serif;font-size:12px;letter-spacing:.25em;color:var(--sub);margin-bottom:14px}
.page-head h1{font-size:clamp(28px,3.2vw,42px);font-weight:700;letter-spacing:.06em;line-height:1.5}
.page-head .lead{margin-top:24px;font-size:clamp(16px,1.4vw,18px);font-weight:400;line-height:2;max-width:760px}
.crumbs{font-size:12px;color:var(--sub);margin-bottom:32px;letter-spacing:.04em}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{margin:0 4px;opacity:.6}
body.sub section.block{padding:96px 8vw}
.prose{max-width:760px;font-size:15px;line-height:2.1}
.prose p+p{margin-top:20px}
.prose h2{font-size:22px;font-weight:700;letter-spacing:.05em;margin:56px 0 16px;padding-left:16px;border-left:3px solid var(--accent)}
.prose h2:first-child{margin-top:0}
.issue-list{max-width:760px;border-top:1px solid var(--line)}
.issue-list li{padding:16px 0 16px 28px;border-bottom:1px solid var(--line);position:relative;font-size:15px;line-height:1.9}
.issue-list li::before{content:"";position:absolute;left:4px;top:28px;width:10px;height:1px;background:var(--accent)}
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{display:block;border:1px solid var(--line);background:var(--white);padding:32px 28px;transition:border-color .2s,transform .2s}
.card .num{display:block;margin-bottom:14px}
.card h3{font-size:18px;font-weight:700;letter-spacing:.04em;line-height:1.6;margin-bottom:12px}
.card p{font-size:14px;line-height:1.9}
.card .more{display:inline-block;margin-top:18px;font-size:13px;font-weight:700}
.card:hover{border-color:var(--ink);transform:translateY(-2px)}
.card:hover .more{color:var(--accent)}
.sol-item h3 a:hover{color:var(--accent)}
.work h3 a:hover{color:var(--accent)}
/* case */
.case-grid{display:grid;grid-template-columns:360px 1fr;gap:64px;align-items:start}
.case-facts{border-top:1px solid var(--line)}
.case-facts .row{display:grid;grid-template-columns:90px 1fr;padding:16px 0;border-bottom:1px solid var(--line);font-size:15px}
.case-facts dt{font-size:13px;color:var(--sub);padding-top:3px;letter-spacing:.1em}
.case-facts .results{display:flex;gap:24px;flex-wrap:wrap}
.case-facts .results b{display:block;font-family:"Karla",sans-serif;font-size:32px;font-weight:700;line-height:1}
.case-facts .results b small{font-size:16px;margin-left:2px}
.case-facts .results span{display:block;font-size:12px;color:var(--sub);margin-top:6px}
/* column */
.col-list{display:grid;grid-template-columns:repeat(3,1fr);gap:32px 28px}
.col-item{display:block}
.col-item img,.col-item .noimg{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;border:1px solid var(--line);background:var(--gray)}
.col-item time{display:block;font-family:"Karla",sans-serif;font-size:12px;letter-spacing:.1em;color:var(--sub);margin:14px 0 6px}
.col-item h3{font-size:16px;font-weight:700;line-height:1.7;letter-spacing:.03em}
.col-item:hover h3{color:var(--accent)}
.article{max-width:760px}
.article header{margin-bottom:32px}
.article header .en{display:block;font-family:"Karla",sans-serif;font-size:12px;letter-spacing:.25em;color:var(--sub);margin-bottom:14px}
.article h1{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.6;letter-spacing:.04em}
.article .meta{margin-top:14px;font-size:13px;color:var(--sub)}
.article .hero-img{width:100%;height:auto;display:block;border:1px solid var(--line);margin-bottom:40px}
.article-body{font-size:16px;line-height:2.1}
.article-body p{margin:0 0 24px}
.article-body h2{font-size:20px;font-weight:700;line-height:1.6;margin:48px 0 18px;padding-left:16px;border-left:3px solid var(--accent)}
.note-link{margin-top:40px}
.author-box{margin-top:56px;padding:28px;border:1px solid var(--line);background:var(--gray);font-size:14px;line-height:1.9}
.author-box .lbl{display:block;margin-bottom:8px}
.author-box p+p{margin-top:10px}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:48px;border-top:1px solid var(--line);padding-top:24px}
.post-nav a{font-size:14px;font-weight:700;line-height:1.6}
.post-nav a small{display:block;font-family:"Karla",sans-serif;font-size:11px;letter-spacing:.2em;color:var(--sub);margin-bottom:6px;font-weight:400}
.post-nav a:last-child{text-align:right}
.post-nav a:hover{color:var(--accent)}
/* contact form */
.contact-grid2{display:grid;grid-template-columns:1.5fr 1fr;gap:56px;align-items:start}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px}
.form-group--full{grid-column:1/-1}
.form-label{display:block;font-size:13px;font-weight:700;letter-spacing:.06em;margin-bottom:8px}
.form-label span{color:var(--accent);margin-left:4px}
.form-input,.form-select,.form-textarea{width:100%;border:1px solid var(--line);background:var(--white);padding:14px 16px;font:inherit;font-size:15px;color:var(--ink);border-radius:0;-webkit-appearance:none;appearance:none}
.form-select{background-image:linear-gradient(45deg,transparent 50%,var(--sub) 50%),linear-gradient(135deg,var(--sub) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px;background-repeat:no-repeat}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--ink)}
.is-invalid{border-color:var(--accent)!important}
.form-textarea{min-height:180px;resize:vertical}
.form-privacy{display:flex;gap:10px;align-items:flex-start;font-size:13px;line-height:1.8}
.form-privacy input{margin-top:6px;accent-color:var(--accent);width:16px;height:16px;flex:none}
.form-submit{margin-top:28px;min-width:240px}
.form-error{margin-top:16px;color:var(--accent-dark);font-size:14px}
.form-success{display:none;padding:40px;border:1px solid var(--line);background:var(--white);font-size:15px;line-height:2}
.form-success__title{font-size:20px;font-weight:700;margin-bottom:8px}
.info-card{padding:28px;border:1px solid var(--line);background:var(--white)}
.info-card+.info-card{margin-top:20px}
.info-card .lbl{display:block;margin-bottom:12px}
.info-big{font-family:"Karla",sans-serif;font-size:28px;font-weight:700;letter-spacing:.04em;line-height:1.2}
.info-sub{font-size:14px;line-height:1.9;margin-top:10px;color:var(--ink)}
.flow-list{counter-reset:f;font-size:14px;line-height:1.9}
.flow-list li{counter-increment:f;padding-left:28px;position:relative;margin:4px 0}
.flow-list li::before{content:counter(f,decimal-leading-zero);position:absolute;left:0;top:0;font-family:"Karla",sans-serif;font-size:12px;color:var(--accent);letter-spacing:.1em;line-height:2.2}
@media(max-width:1100px){.cards3,.col-list{grid-template-columns:repeat(2,1fr)}.case-grid{grid-template-columns:1fr;gap:40px}}
@media(max-width:900px){
  .page-head{padding:96px 20px 36px}
  .page-head h1{font-size:26px}
  .page-head .lead{font-size:14px}
  body.sub section.block{padding:56px 20px}
  .cards3,.col-list,.form-grid,.contact-grid2,.post-nav{grid-template-columns:1fr}
  .prose{font-size:15px;line-height:2}
  .prose h2{font-size:19px;margin:40px 0 14px}
  .article-body{font-size:15px;line-height:2}
  .article-body h2{font-size:18px}
  .post-nav a:last-child{text-align:left}
  .contact-grid2{gap:32px}
  .form-submit{width:100%}
  .case-facts .row{grid-template-columns:80px 1fr}
  .sol-list--open .sol-item .desc,.sol-list--open .sol-item ul{display:block}
  .sol-list--open .sol-item ul{margin-top:8px;padding-top:10px;border-top:1px dashed var(--line)}
}