:root{
  --paper:#ffffff;--mist:#f3f2f6;--lav:#ebe6f4;--line:#8a78bd;--violet:#594793;--violet-d:#463873;
  --ink:#1f1f22;--sub:#5d5b66;--rule:#dcd9e3;
  --font:"IBM Plex Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans CJK JP","Noto Sans JP",sans-serif;
  --w:1160px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--paper);font-size:16px;line-height:1.9;letter-spacing:.03em;font-feature-settings:"palt";-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--violet);outline-offset:3px}
.wrap{max-width:var(--w);margin:0 auto;padding:0 clamp(20px,5vw,48px)}
.tbd{display:inline-block;font-size:11px;line-height:1.5;letter-spacing:.05em;color:var(--violet);border:1px dashed var(--line);border-radius:3px;padding:0 6px;margin-left:6px;vertical-align:.2em;font-weight:500;white-space:nowrap}
.draftbar{background:var(--violet);color:#fff;font-size:12px;text-align:center;padding:6px 12px;letter-spacing:.08em}

/* header */
header.site{border-bottom:1px solid var(--rule);background:#fff;position:sticky;top:0;z-index:10}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.logo-ph{display:inline-flex;align-items:center;height:30px;padding:0 12px;border:1px dashed var(--line);border-radius:4px;font-size:15px;font-weight:600;letter-spacing:.22em;color:var(--violet)}
.brand small{font-size:12px;color:var(--sub);letter-spacing:.08em}
.gnav{display:flex;gap:28px;align-items:center;font-size:14px}
.gnav a{text-decoration:none}
.gnav a:hover,.gnav a[aria-current]{color:var(--violet)}
.gnav a[aria-current]{box-shadow:inset 0 -2px 0 var(--violet)}
.gnav a.cta{background:var(--violet);color:#fff;padding:8px 18px;border-radius:4px;box-shadow:none}
.gnav a.cta:hover{background:var(--violet-d);color:#fff}
.menu{display:none}

/* photo placeholder */
.ph{position:relative;overflow:hidden;color:#fff;font-size:12px;line-height:1.5;min-height:120px}
.ph::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,0) 50%,rgba(20,14,40,.45))}
.ph i{position:absolute;left:12px;bottom:10px;z-index:1;font-style:normal;text-shadow:0 1px 2px rgba(0,0,0,.4)}
.ph i small{display:block;opacity:.85;font-size:11px}
.ph svg{position:absolute;inset:0;width:100%;height:100%}
.t-city{background:linear-gradient(170deg,#c9c3dc 0%,#8e86ac 45%,#4a4268 100%)}
.t-night{background:linear-gradient(160deg,#3b3557 0%,#262238 60%,#4d4470 100%)}
.t-sky{background:linear-gradient(180deg,#dfe3ee 0%,#b9bfd3 100%)}
.t-in{background:linear-gradient(180deg,#e4e2ea 0%,#b8b3c6 100%)}
.t-wood{background:linear-gradient(180deg,#d8d6dc 0%,#9c99a4 100%)}
.own{outline:2px dashed #fff;outline-offset:-8px}
.own::before{content:"自社の工事写真";position:absolute;right:12px;top:12px;z-index:2;font-size:11px;background:var(--violet);color:#fff;padding:2px 8px;border-radius:3px}

/* buttons */
.btn{display:inline-block;text-decoration:none;font-size:15px;padding:12px 26px;border-radius:4px;border:1px solid var(--violet);color:var(--violet);background:#fff;font-family:inherit;cursor:pointer}
.btn.solid{background:var(--violet);color:#fff}
.btn:hover{background:var(--lav)}
.btn.solid:hover{background:var(--violet-d)}
.more{font-size:14px;color:var(--violet);text-decoration:none;border-bottom:1px solid var(--line);padding-bottom:2px}
.more:hover{border-bottom-color:var(--violet)}

/* hero (top) */
.hero .head{padding-top:clamp(48px,7vw,88px);padding-bottom:clamp(28px,4vw,40px);display:grid;grid-template-columns:1fr 26em;align-items:end;gap:32px}
.hero h1{font-size:clamp(30px,4vw,50px);line-height:1.35;font-weight:600;letter-spacing:.05em}
.hero .lead{color:var(--sub);font-size:15px}
.strip{display:grid;grid-template-columns:repeat(4,1fr);height:clamp(260px,32vw,400px);border-top:3px solid var(--violet)}
.strip .ph{border-left:1px solid #fff}
.strip .ph:first-child{border-left:0}
.cap{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--rule)}
.cap a{display:block;padding:20px clamp(16px,2vw,28px) 22px;border-left:1px solid var(--rule);text-decoration:none}
.cap a:first-child{border-left:0}
.cap a:hover{background:var(--mist)}
.cap b{display:block;font-weight:600;font-size:16px}
.cap span{display:block;color:var(--sub);font-size:13px}
.cap em{font-style:normal;font-size:12px;color:var(--violet);display:inline-block;margin-top:6px}

/* page head (sub pages) */
.phead{background:var(--mist);border-bottom:1px solid var(--rule)}
.phead .wrap{padding-top:clamp(40px,6vw,72px);padding-bottom:clamp(32px,5vw,56px)}
.phead h1{font-size:clamp(26px,3vw,36px);font-weight:600;letter-spacing:.06em}
.phead p{color:var(--sub);margin-top:10px;max-width:40em}
.crumb{font-size:12px;color:var(--sub);margin-bottom:12px}
.crumb a{text-decoration:none}

/* sections */
section.blk{padding:clamp(64px,8vw,112px) 0}
section.blk.alt{background:var(--mist)}
.sh{display:grid;grid-template-columns:240px 1fr;gap:clamp(24px,4vw,56px)}
.sh h2{font-size:clamp(22px,2.4vw,28px);font-weight:600;line-height:1.5;letter-spacing:.06em;position:relative;padding-top:18px}
.sh h2::before{content:"";position:absolute;left:0;top:0;width:28px;height:2px;background:var(--violet)}
.intro{font-size:clamp(16px,1.5vw,18px);line-height:1.95;max-width:36em}
.sub{color:var(--sub)}

/* figures */
.figs{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink);margin-top:40px}
.figs div{padding:24px 24px 24px 0}
.figs div + div{padding-left:24px;border-left:1px solid var(--rule)}
.figs .v{font-size:clamp(30px,3.4vw,42px);font-weight:500;letter-spacing:.02em;line-height:1.3}
.figs .v small{font-size:15px;margin-left:4px;font-weight:500}
.figs .k{font-size:14px;color:var(--sub);margin-top:4px}

/* works list */
.works{margin-top:40px;border-top:1px solid var(--ink)}
.works li{list-style:none;display:grid;grid-template-columns:150px 1fr 120px;gap:20px;padding:18px 0;border-bottom:1px solid var(--rule);align-items:baseline}
.works .cat{font-size:12px;color:var(--violet);border:1px solid var(--line);border-radius:3px;padding:1px 8px;justify-self:start;white-space:nowrap}
.works .name{font-weight:500}
.works .name small{display:block;font-weight:400;color:var(--sub);font-size:13px}
.works .yr{font-size:13px;color:var(--sub);text-align:right}
.filter{display:flex;gap:8px;flex-wrap:wrap;margin-top:32px}
.filter button{font-family:inherit;font-size:14px;border:1px solid var(--rule);background:#fff;border-radius:999px;padding:6px 16px;cursor:pointer;color:var(--ink)}
.filter button[aria-pressed="true"]{background:var(--violet);border-color:var(--violet);color:#fff}

/* service blocks */
.svc{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,64px);align-items:start}
.svc .ph{aspect-ratio:4/3}
.svc h2{font-size:clamp(22px,2.4vw,28px);font-weight:600;letter-spacing:.05em}
.svc .tag{font-size:13px;color:var(--violet);letter-spacing:.08em}
.svc p{margin-top:16px;color:var(--sub)}
.svc ul{margin-top:20px;list-style:none;border-top:1px solid var(--rule)}
.svc li{padding:10px 0 10px 20px;border-bottom:1px solid var(--rule);position:relative;font-size:15px}
.svc li::before{content:"";position:absolute;left:2px;top:50%;width:7px;height:7px;margin-top:-3.5px;border:1.6px solid var(--violet);border-radius:50%}
.svc.rev > :first-child{order:2}
.diagram{margin-top:56px;background:#fff;border:1px solid var(--rule);padding:clamp(20px,3vw,36px)}
.diagram h3{font-size:16px;font-weight:600}
.diagram p{font-size:14px;color:var(--sub);margin-top:4px}
.route{width:100%;height:auto;display:block;margin-top:16px}
.route .bld{fill:none;stroke:#c9c3d8;stroke-width:1.2}
.route .bld-f{fill:#fff;stroke:#c9c3d8;stroke-width:1.2}
.route .lbl{font-family:var(--font);font-size:11px;fill:var(--sub);letter-spacing:.06em}
.route .flr{fill:#a29db0}
.route .eq{fill:#fff;stroke:var(--line);stroke-width:1.4}
.route .cab{fill:none;stroke:var(--violet);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.route .ant{fill:#fff;stroke:var(--violet);stroke-width:1.6}
.route .wave{fill:none;stroke:var(--line);stroke-width:1.2;opacity:.8}

/* flow */
.flow{margin-top:48px;list-style:none;display:grid;grid-template-columns:repeat(4,1fr);position:relative}
.flow::before{content:"";position:absolute;left:0;right:0;top:15px;height:2px;background:var(--lav)}
.flow li{position:relative;padding-right:24px}
.flow .n{position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:#fff;border:1.6px solid var(--violet);color:var(--violet);font-size:14px;font-weight:600}
.flow h3{margin-top:18px;font-size:17px;font-weight:600;letter-spacing:.05em}
.flow p{margin-top:8px;font-size:14px;color:var(--sub);line-height:1.8}

/* company */
.dl{display:grid;grid-template-columns:160px 1fr;border-top:1px solid var(--ink)}
.dl dt,.dl dd{padding:18px 0;border-bottom:1px solid var(--rule)}
.dl dt{font-weight:500;color:var(--sub);font-size:15px}
.dl dd small{color:var(--sub);font-size:13px}
.plain{list-style:none}
.plain li + li{margin-top:4px}
.bases{margin-top:48px;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--rule)}
.bases article{padding:28px 24px 28px 0}
.bases article + article{padding-left:24px;border-left:1px solid var(--rule)}
.bases h3{font-size:17px;font-weight:600;letter-spacing:.06em}
.bases h3 small{font-size:12px;font-weight:400;color:var(--sub);margin-left:8px}
.bases p{margin-top:10px;font-size:14px;color:var(--sub);line-height:1.8}
.hist{border-top:1px solid var(--ink)}
.hist div{display:grid;grid-template-columns:160px 1fr;padding:16px 0;border-bottom:1px solid var(--rule)}
.hist b{font-weight:500}

/* form */
.form{display:grid;gap:22px;max-width:720px}
.form label{display:block;font-size:14px;font-weight:500}
.form label span{font-size:11px;color:#fff;background:var(--violet);border-radius:3px;padding:1px 6px;margin-left:8px;font-weight:500}
.form input,.form select,.form textarea{display:block;width:100%;margin-top:8px;font-family:inherit;font-size:16px;padding:12px 14px;border:1px solid var(--rule);border-radius:4px;background:#fff;color:var(--ink)}
.form textarea{min-height:180px;resize:vertical}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--line);outline-offset:0;border-color:var(--line)}
.sent{display:none;background:var(--lav);border-left:3px solid var(--violet);padding:14px 18px;font-size:14px}

/* contact band */
.cband{background:var(--violet);color:#fff}
.cband .wrap{padding-top:56px;padding-bottom:56px;display:grid;grid-template-columns:1fr auto auto;gap:40px;align-items:center}
.cband h2{font-size:22px;font-weight:600;letter-spacing:.06em}
.cband p{color:#e7e2f3;font-size:14px;margin-top:4px}
.cband .tel{font-size:26px;font-weight:500;letter-spacing:.06em;line-height:1.3}
.cband .tel small{display:block;font-size:12px;color:#d8d1ea;letter-spacing:.04em}
.cband .btn{background:#fff;border-color:#fff;color:var(--violet)}
.cband .tbd{color:#fff;border-color:rgba(255,255,255,.7)}

footer.site{padding:48px 0 40px;font-size:13px;color:var(--sub)}
footer.site .wrap{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:end}
footer.site nav{display:flex;gap:20px;flex-wrap:wrap}
footer.site nav a{text-decoration:none}
footer.site .copy{grid-column:1/-1;border-top:1px solid var(--rule);padding-top:20px;font-size:12px}

@media (max-width:900px){
  .gnav{display:none}
  .menu{display:block;font-size:14px}
  .menu summary{list-style:none;cursor:pointer;border:1px solid var(--rule);padding:6px 14px;border-radius:4px}
  .menu summary::-webkit-details-marker{display:none}
  .menu .panel{position:absolute;right:20px;top:64px;background:#fff;border:1px solid var(--rule);border-radius:4px;padding:8px 0;min-width:200px}
  .menu .panel a{display:block;padding:10px 20px;text-decoration:none}
  .brand small{display:none}
  .hero .head{grid-template-columns:1fr}
  .strip{grid-template-columns:1fr 1fr;height:auto}
  .strip .ph{height:200px}
  .strip .ph:nth-child(3){border-left:0}
  .strip .ph:nth-child(n+3){border-top:1px solid #fff}
  .cap{grid-template-columns:1fr 1fr}
  .cap a:nth-child(3){border-left:0}
  .cap a:nth-child(n+3){border-top:1px solid var(--rule)}
  .sh,.svc{grid-template-columns:1fr;gap:20px}
  .svc.rev > :first-child{order:0}
  .figs{grid-template-columns:1fr}
  .figs div + div{padding-left:0;border-left:0;border-top:1px solid var(--rule)}
  .works li{grid-template-columns:1fr;gap:4px}
  .works .yr{text-align:left}
  .flow{grid-template-columns:1fr;gap:28px}
  .flow::before{left:15px;right:auto;top:0;bottom:0;width:2px;height:auto}
  .flow li{padding-left:52px;padding-right:0}
  .flow .n{position:absolute;left:0;top:0}
  .flow h3{margin-top:2px}
  .dl,.hist div{grid-template-columns:1fr}
  .dl dt{border-bottom:0;padding-bottom:0}
  .dl dd{padding-top:4px}
  .bases{grid-template-columns:1fr}
  .bases article + article{padding-left:0;border-left:0;border-top:1px solid var(--rule)}
  .cband .wrap{grid-template-columns:1fr;gap:20px}
  footer.site .wrap{grid-template-columns:1fr}
}

/* v3: two pillars */
.pillars{display:grid;grid-template-columns:3fr 2fr;gap:6px;border-top:3px solid var(--violet);padding-top:6px}
.pl{text-decoration:none;display:flex;flex-direction:column;min-width:0}
.pl .mos{display:grid;grid-template-columns:1.4fr 1fr;grid-template-rows:1fr 1fr;gap:6px;height:clamp(300px,34vw,440px)}
.pl .mos .ph:first-child{grid-row:1/3}
.pl .mos.one{grid-template-columns:1fr;grid-template-rows:1fr}
.pl .mos.one .ph{grid-row:auto}
.pcap{padding:22px clamp(16px,2.4vw,32px) 26px;border-bottom:1px solid var(--rule)}
.pl + .pl .pcap{border-left:1px solid var(--rule)}
.pl:hover .pcap{background:var(--mist)}
.pcap .where{display:block;font-size:12px;color:var(--violet);letter-spacing:.08em}
.pcap b{display:block;font-size:clamp(20px,2vw,24px);font-weight:600;letter-spacing:.06em;margin-top:2px}
.pcap span{display:block;color:var(--sub);font-size:14px}
.pcap em{font-style:normal;font-size:13px;color:var(--violet);display:inline-block;margin-top:8px;border-bottom:1px solid var(--line)}
.pillarhead{background:var(--violet);color:#fff}
.pillarhead .wrap{padding-top:clamp(40px,5vw,64px);padding-bottom:clamp(40px,5vw,64px)}
.pillarhead .where{font-size:13px;color:#d8d1ea;letter-spacing:.08em}
.pillarhead h2{font-size:clamp(28px,3.4vw,42px);font-weight:600;letter-spacing:.08em;margin-top:4px}
.pillarhead p:last-child{color:#e7e2f3;margin-top:10px;max-width:40em}
@media (max-width:900px){
  .pillars{grid-template-columns:1fr}
  .pl .mos{height:340px}
  .pl .mos.one{height:220px}
  .pl + .pl .pcap{border-left:0}
}
.hero h1 .nw{white-space:nowrap}
@media (max-width:480px){.hero h1 .nw{white-space:normal}}

/* v6: key visual + top sections */
.kv{position:relative;border-bottom:3px solid var(--violet)}
.kv-img{display:grid;grid-template-columns:1fr 1fr;height:max(400px,35.76vw)}
.kv-img .ph{min-height:0}
.kv-img .ph + .ph{border-left:1px solid #fff}
.kv-img .ph::after{background:linear-gradient(180deg,rgba(20,14,40,.05),rgba(20,14,40,.35))}
.kv-img .ph i{bottom:14px}
.kv-img .ph:last-child i{left:auto;right:14px;text-align:right}
.kv-txt{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);text-align:center;color:#fff;padding:0 20px;z-index:3;text-shadow:0 2px 18px rgba(20,14,40,.45)}
.kv-txt h1{font-size:clamp(27px,4vw,52px);line-height:1.4;font-weight:600;letter-spacing:.08em}
.kv-txt p{margin-top:18px;font-size:clamp(14px,1.4vw,17px);letter-spacing:.1em}
.kv h1 .nw{white-space:nowrap}
.statement{font-size:clamp(22px,2.6vw,32px);font-weight:600;line-height:1.6;letter-spacing:.05em}
.prose{margin-top:24px;max-width:36em}
.prose p + p{margin-top:12px}
.facts{margin-top:36px;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--ink)}
.facts div{padding:16px 16px 16px 0}
.facts div + div{padding-left:16px;border-left:1px solid var(--rule)}
.facts dt{font-size:12px;color:var(--sub);letter-spacing:.08em}
.facts dd{font-size:16px;font-weight:500;margin-top:2px}
.forest-rec{margin-top:56px;padding-top:28px;border-top:1px solid var(--rule)}
.forest-rec .where{font-size:13px;color:var(--violet);letter-spacing:.08em}
.forest-rec .figs{margin-top:12px}
.forest-rec .figs .v{font-size:clamp(24px,2.6vw,32px)}
.ctypes{margin-top:28px;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink)}
.ctypes div{padding:18px 18px 18px 0}
.ctypes div + div{padding-left:18px;border-left:1px solid var(--rule)}
.ctypes b{display:block;font-weight:600}
.ctypes span{display:block;font-size:13px;color:var(--sub);margin-top:2px}
.cline{margin-top:32px;display:flex;gap:32px;align-items:center;flex-wrap:wrap}
.cline .tel{font-size:24px;font-weight:500;letter-spacing:.06em;line-height:1.3}
.cline .tel small{display:block;font-size:12px;color:var(--sub);letter-spacing:.04em}
@media (max-width:900px){
  .kv-img{height:520px}
  .facts,.ctypes{grid-template-columns:1fr 1fr}
  .facts div:nth-child(3),.ctypes div:nth-child(3){padding-left:0;border-left:0}
  .facts div:nth-child(n+3),.ctypes div:nth-child(n+3){border-top:1px solid var(--rule)}
}
@media (max-width:520px){
  .kv h1 .nw{white-space:normal}
  .ctypes{grid-template-columns:1fr}
  .ctypes div + div{padding-left:0;border-left:0;border-top:1px solid var(--rule)}
}
.prose .lead-in{font-size:clamp(17px,1.7vw,20px);font-weight:500;line-height:1.8}

/* v9: key visual collage */
.kv2{border-bottom:3px solid var(--violet);background:#fff}
.kgrid{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr;grid-template-rows:repeat(2,minmax(0,1fr));gap:4px;height:clamp(460px,64vh,660px)}
.kgrid .ph{min-height:0}
.k-tower{grid-column:1;grid-row:1 / 3}
.kcatch{grid-column:2 / 4;grid-row:1;background:var(--violet);color:#fff;display:flex;flex-direction:column;justify-content:center;padding:0 clamp(24px,3.4vw,52px)}
.kcatch h1{font-size:clamp(26px,3.1vw,44px);line-height:1.42;font-weight:600;letter-spacing:.07em}
.kcatch p{margin-top:16px;font-size:clamp(13px,1.15vw,15px);letter-spacing:.08em;color:#e7e2f3}
.k-etc{grid-column:4;grid-row:1}
.k-roof{grid-column:2;grid-row:2}
.k-in{grid-column:3;grid-row:2}
.k-spk{display:none}
.k-mt{grid-column:4;grid-row:2}
.kv2 .nw{white-space:nowrap}
@media (max-width:900px){
  .kgrid{grid-template-columns:1fr 1fr;grid-template-rows:auto 200px 200px 200px;height:auto}
  .kcatch{grid-column:1 / 3;grid-row:1;padding:40px 24px}
  .k-tower{grid-column:1;grid-row:2 / 4}
  .k-etc{grid-column:2;grid-row:2}
  .k-roof{grid-column:2;grid-row:3}
  .k-in{grid-column:1;grid-row:4}
  .k-mt{grid-column:2;grid-row:4}
}
@media (max-width:420px){.kv2 .nw{white-space:normal}}

/* v10: blended collage in left half */
.kblend .lay{position:absolute;top:0;bottom:0;width:50%}
.kblend .lay svg{position:absolute;inset:0;width:100%;height:100%}
.kblend .l1{left:0;-webkit-mask-image:linear-gradient(90deg,#000 55%,transparent);mask-image:linear-gradient(90deg,#000 55%,transparent)}
.kblend .l2{left:25%;-webkit-mask-image:linear-gradient(90deg,transparent,#000 30%,#000 70%,transparent);mask-image:linear-gradient(90deg,transparent,#000 30%,#000 70%,transparent)}
.kblend .l3{left:50%;-webkit-mask-image:linear-gradient(90deg,transparent,#000 45%);mask-image:linear-gradient(90deg,transparent,#000 45%)}
.ph.photo{background-size:cover;background-position:center;background-color:#2c2645}
.ph.photo::before,.ph.photo::after{display:none}
.kv-tel{background-image:url(img/kv-telecom.jpg);background-position:center}
@media (max-width:760px){.kv-tel{background-image:url(img/kv-telecom-sp.jpg);background-position:center top}}
.kv-for{background-image:url(img/kv-forest.jpg);background-position:center}
@media (max-width:760px){.kv-for{background-image:url(img/kv-forest-sp.jpg);background-position:center top}}
/* v14: scrim so the catch stays readable over photos */
.kv-img{position:relative}
.kv-img::after{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:radial-gradient(ellipse 58% 52% at 50% 50%,rgba(16,13,26,.62) 0%,rgba(16,13,26,.42) 55%,rgba(16,13,26,.22) 100%)}
.kv-txt{text-shadow:0 1px 3px rgba(0,0,0,.55),0 2px 22px rgba(0,0,0,.45)}
@media (max-width:760px){.kv-img::after{background:linear-gradient(180deg,rgba(16,13,26,.28),rgba(16,13,26,.6) 35%,rgba(16,13,26,.6) 65%,rgba(16,13,26,.28))}}
img.logo{display:block;height:30px;width:auto}
footer.site img.logo{height:26px}
@media (max-width:520px){header img.logo{height:24px}}
.ib{display:inline-block}
.h2s{font-size:clamp(20px,2.2vw,24px);font-weight:600;letter-spacing:.05em}
.ogrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:0;margin-top:24px;border-top:1px solid var(--ink)}
.og{padding:22px 20px 22px 0;border-bottom:1px solid var(--rule)}
.og .v{font-size:clamp(28px,3vw,38px);font-weight:500;line-height:1.3}
.og .v small{font-size:14px;margin-left:4px}
.og .v-txt{font-size:20px;color:var(--violet);padding:8px 0 6px}
.og .t{font-weight:600;margin-top:6px}
.og .s{font-size:13px;color:var(--sub);margin-top:2px}
.kpi{margin-top:18px !important;color:var(--ink) !important;font-size:14px}
.kpi b{font-size:26px;font-weight:600;color:var(--violet);margin-right:2px}
.kpi span{margin:0 10px;color:var(--rule)}
.others{list-style:none;border-top:1px solid var(--ink)}
.others li{display:grid;grid-template-columns:200px 1fr;gap:16px;padding:16px 0;border-bottom:1px solid var(--rule)}
.others b{font-weight:600}
.others span{color:var(--sub)}
@media (max-width:900px){.others li{grid-template-columns:1fr;gap:4px}}
/* v22 gateway top */
.facts.big dd{font-size:clamp(28px,3vw,38px);font-weight:500;line-height:1.3;margin-top:6px}
.facts.big dd small{font-size:14px;margin-left:4px}
.facts.big p{font-size:12px;color:var(--sub);margin-top:2px}
@media (max-width:900px){.facts.big{grid-template-columns:1fr 1fr}.facts.big div:nth-child(3){padding-left:0;border-left:0}}
.gate{background:var(--mist);border-top:1px solid var(--rule)}
.gate .wrap{display:grid;grid-template-columns:repeat(4,1fr);padding-top:0;padding-bottom:0}
.gate a{display:block;padding:40px 24px 40px 0;text-decoration:none;color:var(--ink);position:relative;transition:background .2s}
.gate a + a{padding-left:24px;border-left:1px solid var(--rule)}
.gate a::after{content:"→";position:absolute;right:20px;bottom:40px;color:var(--violet);transition:transform .2s}
.gate a:hover::after{transform:translateX(4px)}
.gate a:hover b{color:var(--violet)}
.gate .no{display:block;font-size:12px;color:var(--violet);letter-spacing:.1em}
.gate b{display:block;font-size:20px;font-weight:600;margin-top:6px;letter-spacing:.05em}
.gate small{display:block;font-size:13px;color:var(--sub);margin-top:6px;padding-right:28px}
.gate a:last-child{background:var(--violet);color:#fff;border-left-color:var(--violet)}
.gate a:last-child{padding-right:24px}
.gate a:last-child .no,.gate a:last-child small,.gate a:last-child::after{color:#e7e2f3}
.gate a:last-child:hover b{color:#fff}
@media (max-width:900px){.gate .wrap{grid-template-columns:1fr 1fr}.gate a:nth-child(3){padding-left:0;border-left:0}.gate a{border-top:1px solid var(--rule)}.gate a:last-child{margin-right:0}.gate{background:var(--mist)}}
@media (max-width:520px){.gate .wrap{grid-template-columns:1fr}.gate a,.gate a + a{padding:24px 0;border-left:0}.gate a:last-child{margin:0 calc(-1*clamp(20px,5vw,48px));padding-left:clamp(20px,5vw,48px)}.gate a::after{bottom:24px;right:4px}}
/* v23 catch */
.kv-txt .kv-sub{margin-top:20px;font-size:clamp(17px,1.9vw,24px);font-weight:500;letter-spacing:.14em}
.kv-txt .kv-biz{position:absolute;left:0;right:0;top:100%;margin-top:clamp(20px,2.6vw,32px);font-size:clamp(12px,1vw,14px);letter-spacing:.24em;opacity:.9}
@media (max-width:600px){.kv-txt h1 .nw{display:block}}
.kv-txt .kv-logo{margin-top:clamp(22px,3vw,34px)}
.kv-txt .kv-logo img{height:clamp(44px,4.4vw,64px);width:auto;display:inline-block;filter:drop-shadow(0 2px 10px rgba(0,0,0,.3))}
.kv-txt .kv-logo + .kv-biz{margin-top:12px}

/* v42 段落の改行：文節の切れ目（<wbr>）でだけ改行し、単語の途中で折り返さない */
body{word-break:keep-all;overflow-wrap:anywhere;line-break:strict}
p,li,dd,dt,td,th,figcaption,label{text-wrap:pretty}
h1,h2,h3,h4{text-wrap:balance}

/* v44 トップの入口：お問い合わせは下の紫の帯へ移したので4つとも同じ見た目に。森林事業は外部サイト */
.gate a:last-child{background:none;color:var(--ink);border-left-color:var(--rule)}
.gate a:last-child .no{color:var(--violet)}
.gate a:last-child small{color:var(--sub)}
.gate a:last-child::after{color:var(--violet)}
.gate a:last-child:hover b{color:var(--violet)}
@media (max-width:520px){.gate a:last-child{margin:0;padding-left:0}}
.gate a.ext::after{content:"↗"}
footer.site .lic{margin-top:10px;font-size:11px;line-height:1.8;color:var(--sub);opacity:.9}
footer.site .lic span{display:inline-block;white-space:nowrap;margin-right:1.2em}

/* v45 フッターの拠点（本社・東北支店） */
footer.site .addr{margin-top:8px;line-height:1.75}
footer.site .addr b{display:block;font-weight:600;font-size:12px;color:var(--ink,#222)}
footer.site .addr b small{font-weight:400;font-size:11px;color:var(--sub);margin-left:2px}
footer.site .addr span{display:inline-block;margin-right:1em}

/* v46 フッター：本社と東北支店を横並び、許認可は各拠点の下 */
footer.site .wrap{grid-template-columns:1fr;align-items:start}
footer.site .bases{display:grid;grid-template-columns:repeat(2,minmax(0,max-content));gap:16px 64px;margin-top:18px}
footer.site .base b{display:block;font-weight:600;font-size:13px;color:var(--ink,#222);margin-bottom:4px}
footer.site .base b small{font-weight:400;font-size:11px;color:var(--sub);margin-left:8px}
footer.site .base p{line-height:1.75}
footer.site .base .lic{margin-top:8px;font-size:11px;line-height:1.7;opacity:.9}
footer.site nav{margin-top:8px}
@media (max-width:760px){footer.site .bases{grid-template-columns:1fr;gap:22px}}

/* v57 数字の行：ひとかたまりずつ折り返す（スマホで「／」が行頭に来ないように） */
.kpi{display:flex;flex-wrap:wrap;align-items:baseline;row-gap:6px}
.kpi .kg{font-style:normal;white-space:nowrap}
.kpi .kg:not(:last-child)::after{content:"／";margin:0 10px;color:var(--rule)}
@media (max-width:600px){.kpi{column-gap:20px}.kpi .kg::after{display:none}}

/* v58 会社概要：拠点2つ＋地図 */
.bases.bases2{grid-template-columns:repeat(2,1fr)}
.bases .map{margin-top:16px;aspect-ratio:4/3;background:var(--bg2,#f1f0f5);border:1px solid var(--rule)}
.bases .map iframe{width:100%;height:100%;border:0;display:block}
ul.plain li{line-height:1.7}
ul.plain li + li{margin-top:10px}
/* v60 topics */
ul.topics{list-style:none;margin:0;padding:0;border-top:1px solid var(--rule)}
ul.topics li{display:grid;grid-template-columns:88px 96px 1fr;gap:16px;align-items:baseline;padding:20px 0;border-bottom:1px solid var(--rule)}
ul.topics time{font-size:14px;letter-spacing:.06em;color:var(--sub,#666)}
ul.topics .tag{font-size:12px;color:var(--violet);border:1px solid var(--violet);padding:2px 8px;text-align:center;justify-self:start}
ul.topics p{margin:0}
@media (max-width:720px){ul.topics li{grid-template-columns:auto 1fr;row-gap:8px}ul.topics p{grid-column:1/-1}}
/* v61 nav: 6 items */
.gnav a{white-space:nowrap}
@media (max-width:1180px){.brand small{display:none}.gnav{gap:20px}}
@media (max-width:1000px){.gnav{gap:14px;font-size:13px}.gnav a.cta{padding:8px 12px}}
#about,#topics,#telecom,#forest{scroll-margin-top:72px}
/* v62 works: no year column */
.works li{grid-template-columns:200px 1fr}
@media (max-width:900px){.works li{grid-template-columns:1fr}}
/* v65 works groups */
.wgrid{margin-top:24px;border-top:1px solid var(--ink)}
.wg{display:grid;grid-template-columns:220px 1fr;gap:24px;padding:24px 0;border-bottom:1px solid var(--rule)}
.wg-h{font-weight:600;line-height:1.6}
.wg-h span{font-weight:400;font-size:13px;color:var(--violet);margin-left:10px}
.wg-h small{display:block;font-weight:400;font-size:13px;color:var(--sub)}
.wg ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:8px 24px}
.wg li{position:relative;padding-left:14px}
.wg li::before{content:"";position:absolute;left:0;top:.8em;width:6px;height:1px;background:var(--violet)}
@media (max-width:900px){.wg{grid-template-columns:1fr;gap:10px}}
@media (min-width:1100px){.ogrid.og5{grid-template-columns:repeat(5,1fr)}}
.wg ul{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.wg li::before{top:.95em}
.prose .nw{white-space:nowrap}
/* v67 contact / privacy */
.telbox .tel{font-size:30px;font-weight:500;letter-spacing:.06em;color:var(--ink);text-decoration:none}
.telbox .sub{margin-top:4px}
.hp{display:none}
.form label.agree{display:flex;align-items:center;gap:10px;font-weight:400}
.form label.agree input{width:18px;height:18px;margin:0;flex:none}
.policy{max-width:760px}
.policy h2{font-size:18px;font-weight:600;margin-top:40px}
.policy h2:first-child{margin-top:0}
.policy p,.policy ul{margin-top:12px;line-height:1.9}
.policy ul{padding-left:1.4em}
.policy .date{margin-top:48px;font-size:14px;color:var(--sub)}
.form input.hp{display:none!important}
.form label.agree .t{font-style:normal}
/* v69 company maps: equal width, 1 column on mobile */
.bases.bases2 article{padding:28px 24px 28px 0}
.bases.bases2 article + article{padding:28px 0 28px 24px}
.bases.bases2 .map{aspect-ratio:16/10}
@media (max-width:760px){
  .bases.bases2{grid-template-columns:1fr}
  .bases.bases2 article,.bases.bases2 article + article{padding:24px 0;border-left:0}
  .bases.bases2 article + article{border-top:1px solid var(--rule)}
  .bases.bases2 .map{aspect-ratio:4/3}
}
/* v69 partner */
.partner .pbanner{display:inline-block;max-width:100%;transition:opacity .2s}
.partner .pbanner:hover{opacity:.8}
.partner .pbanner img{display:block;max-width:100%;height:auto}
.partner .pnote{margin-top:16px;max-width:640px;line-height:1.9}
ul.topics p a{color:inherit;text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:4px}