:root{--navy:#071c42;--navy2:#102442;--blue:#1761a1;--ink:#172033;--muted:#667080;--pale:#f3f6fa;--line:#d4d9e0;--red:#ef3340;--yellow:#ffe400}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"Noto Sans JP","Yu Gothic","Hiragino Kaku Gothic ProN",sans-serif;line-height:1.8;background:#fff}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.header{height:86px;display:flex;align-items:center;justify-content:space-between;padding:0 max(4vw,44px);background:#fff;position:relative;z-index:10}.brand{display:flex;align-items:center;gap:18px}.brand img{width:34px;height:34px;object-fit:contain}.brand span{display:flex;flex-direction:column;line-height:1.15}.brand b{font-size:18px;letter-spacing:.03em}.brand small{font-size:11px;color:#545d69;margin-top:4px}.header nav{display:flex;align-items:center;gap:30px;font-size:15px;font-weight:700}.nav-contact{background:var(--navy);color:#fff;padding:17px 24px}.menu{display:none;background:none;border:0;padding:10px}.menu i{display:block;width:25px;height:2px;background:var(--navy);margin:5px}.container{width:min(1120px,calc(100% - 48px));margin:auto}.hero{height:680px;background:linear-gradient(90deg,rgba(3,21,52,.92),rgba(3,21,52,.35)),url('/assets/work/plant-site.webp') center/cover;display:flex;align-items:center;color:#fff}.hero .inner{width:min(1120px,calc(100% - 48px));margin:auto}.eyebrow{color:#4a88bf;font-size:12px;font-weight:800;letter-spacing:.22em;text-transform:uppercase;margin:0 0 18px}.hero .eyebrow{color:#ffe22c}.hero h1,.serif{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-weight:400}.hero h1{font-size:56px;line-height:1.45;letter-spacing:.05em;margin:0 0 14px}.hero p{font-size:17px}.button{display:inline-flex;align-items:center;gap:28px;background:#fff;color:var(--ink);font-weight:700;padding:16px 24px;margin-top:22px;border:1px solid transparent}.button:after{content:'→';font-size:21px}.button.outline{background:transparent;border-color:#a8b1bd}.button.dark{background:var(--navy);color:white}.section{padding:95px 0}.section.pale{background:var(--pale)}.section.navy{background:var(--navy);color:#fff;border-top:5px solid var(--blue);position:relative}.section.navy:before{content:"";position:absolute;top:-5px;left:25%;width:140px;height:5px;background:linear-gradient(90deg,var(--red) 50%,var(--yellow) 50%)}.section h2{font-size:41px;line-height:1.45;margin:0 0 28px}.lead-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:80px;align-items:start}.lead-grid .copy{padding-top:6px}.lead-grid .copy strong{font-size:18px}.text-link{display:inline-block;color:#07558c;font-weight:700;border-bottom:1px solid #07558c;margin-top:15px}.process{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #61708a;border-bottom:1px solid #61708a;margin-top:45px}.process article{padding:36px 25px;min-height:250px;border-right:1px solid #61708a}.process article:last-child{border:0}.step{font-size:11px;letter-spacing:.16em;color:#aebbd0}.kanji{display:flex;width:58px;height:58px;align-items:center;justify-content:center;border:1px solid #7990ad;font-family:serif;font-size:25px;margin:24px 0}.process h3{margin:0;font-size:18px}.process p{color:#bac4d3;margin:4px 0;font-size:14px}.fields{display:grid;grid-template-columns:repeat(4,1fr);margin-top:40px}.fields article{padding:25px 30px;border-left:1px solid var(--line)}.fields article:last-child{border-right:1px solid var(--line)}.icon{font-size:29px;color:var(--blue)}.fields h3{font-weight:500}.fields p{font-size:14px;color:var(--muted)}.strength{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.strength img{width:100%;max-height:420px;object-fit:cover}.strength-list article{border-bottom:1px solid var(--line);padding:25px 0 25px 45px;position:relative}.strength-list .icon{position:absolute;left:0;top:23px}.strength-list h3{font-size:16px;margin:0}.strength-list p{font-size:14px;color:var(--muted);margin:7px 0}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}.card{background:#fff;border-bottom:3px solid var(--navy);display:block}.card img{width:100%;height:195px;object-fit:cover}.card-body{padding:20px}.meta{font-size:12px;color:#828b99}.tag{background:#18507d;color:#fff;padding:6px 10px;margin-right:12px}.tag.red{background:#b82634}.tag.dark{background:var(--navy)}.card h3{font-size:17px;margin:16px 0 5px}.card p{font-size:14px;color:var(--muted);margin:0}.center{text-align:center}.recruit-strip{padding:62px 0;background:#e8eef5}.recruit-strip .container{display:flex;align-items:center;justify-content:space-between}.recruit-strip h2{font-size:30px;margin:0}.contact-band{background:var(--navy2);color:#fff;text-align:center;padding:75px 20px}.contact-band h2{font:400 31px serif;margin:5px 0 25px}.contact-actions{display:flex;justify-content:center;gap:18px}.contact-actions a{border:1px solid #65738a;padding:20px 28px;min-width:300px}.footer{background:#031635;color:#fff;padding:66px 0 20px}.footer-grid{display:flex;justify-content:space-between}.footer-brand{display:flex;gap:17px;align-items:flex-start}.footer-brand img{width:33px}.footer-brand b{font-size:18px}.footer-brand p{color:#a9b1bf;margin:5px 0}.footer-links{display:grid;grid-template-columns:repeat(2,140px);gap:16px}.copyright{text-align:center;border-top:1px solid #243855;margin-top:50px;padding-top:20px;color:#8995a8;font-size:11px}.page-head{background:var(--navy);color:#fff;padding:75px 0}.page-head h1{font:400 44px serif;margin:0 0 8px}.page-head p{color:#c1c9d6}.message-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:75px}.message-grid h2{font:400 39px serif}.signature{text-align:right;margin-top:35px}.profile{display:grid;grid-template-columns:220px 1fr;border-top:1px solid var(--line)}.profile dt,.profile dd{margin:0;padding:19px;border-bottom:1px solid var(--line)}.profile dt{font-weight:700;background:#f6f8fa}.map{width:100%;height:400px;border:0;margin-top:28px}.why{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.why article{border-top:3px solid var(--blue);background:var(--pale);padding:28px}.num{font-size:12px;color:var(--blue);font-weight:800}.site-list{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}.site-list div{background:white;padding:30px;text-align:center}.filters,.category-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:25px 0 40px}.filter,.cat{border:1px solid var(--line);background:white;padding:11px 23px;cursor:pointer}.filter.active,.cat.active{background:var(--navy);color:white}.entry-select{display:grid;grid-template-columns:1fr 1fr;gap:20px}.entry-select button{background:#fff;border:1px solid var(--line);padding:28px;text-align:left;cursor:pointer}.entry-select button.active{background:var(--navy);color:#fff}.licenses{display:flex;flex-wrap:wrap;gap:10px}.licenses span{border:1px solid var(--line);padding:9px 16px;background:#fff}.job-table{width:100%;border-collapse:collapse;margin-top:25px}.job-table th,.job-table td{border-bottom:1px solid var(--line);padding:17px;text-align:left}.job-table th{width:180px;background:#f4f6f8}.phone-box{padding:34px;border:1px solid var(--line);text-align:center}.phone-box a{display:block;color:var(--blue);font-size:32px;font-weight:800}.notice{background:#fff4de;color:#765115;padding:15px;margin:30px 0}.form{max-width:820px}.form-row{margin-bottom:24px}.form label{font-weight:700;display:block;margin-bottom:8px}.required{background:#c02b37;color:#fff;font-size:11px;padding:3px 7px;margin-left:10px}.optional{color:#7a8490;font-size:12px;margin-left:10px}.form input,.form select,.form textarea{width:100%;border:1px solid #bcc4cf;padding:13px;background:#fff}.form textarea{min-height:180px}.article{max-width:850px}.article .hero-img{width:100%;max-height:450px;object-fit:cover;margin:30px 0}.article h2{font-size:25px;border-left:4px solid var(--blue);padding-left:16px;margin-top:45px}.back{color:var(--blue);font-weight:700}.hidden{display:none!important}@media(max-width:800px){.header{height:72px;padding:0 18px}.brand{gap:9px}.brand img{width:28px;height:28px}.brand b{font-size:15px}.brand small{font-size:9px}.menu{display:block}.header nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;gap:0;align-items:stretch;padding:12px 20px 25px;box-shadow:0 12px 18px #0002}.header nav.open{display:flex}.header nav a{padding:13px}.nav-contact{text-align:center}.hero{height:570px}.hero h1{font-size:37px}.hero p{font-size:14px}.section{padding:65px 0}.section h2{font-size:31px}.lead-grid,.message-grid,.strength{grid-template-columns:1fr;gap:30px}.process,.fields,.why,.cards,.site-list{grid-template-columns:1fr}.process article{border-right:0;border-bottom:1px solid #61708a;min-height:0}.fields article,.fields article:last-child{border-right:0;border-left:0;border-bottom:1px solid var(--line)}.recruit-strip .container,.footer-grid{display:block}.recruit-strip .button{margin-top:25px}.contact-actions{display:block}.contact-actions a{display:block;min-width:0;margin:12px 0}.footer-links{margin-top:35px}.entry-select{grid-template-columns:1fr}.profile{grid-template-columns:110px 1fr}.job-table th{width:105px}.page-head{padding:55px 0}.page-head h1{font-size:37px}}

.work-photos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;margin-top:40px}.work-photos figure{margin:0;min-width:0;background:#fff;border:1px solid var(--line)}.work-photos img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;background:#e8eef5}.work-photos figcaption{padding:14px 20px;font-size:14px;color:var(--ink);font-weight:700}.photo-intro{margin-top:65px}.photo-intro h2{margin-bottom:18px}.strength img{display:block;height:auto}.hero{background-position:center}.work-photos figure:has(img[src*="drilling-site"]){background:#e8eef5}@media(max-width:600px){.work-photos{grid-template-columns:1fr;gap:22px;margin-top:28px}.photo-intro{margin-top:45px}.work-photos figcaption{padding:12px 16px}}

/* Material, light and movement — THREE TECH */
:root{--pale:#f0f2f4;--blue:#225b87;--muted:#5b6673}
body{overflow-x:clip;-webkit-font-smoothing:antialiased}
.header{border-top:3px solid var(--navy);box-shadow:0 3px 18px #071c4214;height:90px}
.brand img{width:62px;height:44px}.brand{gap:12px}
.header nav{gap:25px}.header nav a:not(.nav-contact){position:relative;transition:color .2s}
.header nav a:not(.nav-contact):after{content:"";position:absolute;bottom:-9px;left:0;width:100%;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.header nav a:hover:after,.header nav a[aria-current]:after{transform:scaleX(1)}
.hero{position:relative;isolation:isolate;height: min(740px,calc(100svh - 90px));min-height:580px;background:none;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;z-index:-2;background:url('/assets/work/plant-site.webp') center 48%/cover;animation:photo-settle 1.4s ease-out both}
.hero:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#031734ed 0%,#031734a3 46%,#03173425 100%),linear-gradient(0deg,#03173480,transparent 40%)}
.hero .inner{padding:45px 0 65px;position:relative;border-left:1px solid #ffffff40;padding-left:36px}
.hero .inner:before{content:"";position:absolute;left:-2px;top:45px;width:3px;height:48px;background:#ffe400}
.hero h1{font-weight:600;text-shadow:0 3px 16px #0005;font-size:clamp(36px,4.4vw,62px);letter-spacing:.07em}
.hero p{max-width:650px}.hero .eyebrow{font-size:13px;letter-spacing:.16em}
.hero .inner>*{animation:rise-in .8s .12s both}.hero .inner h1{animation-delay:.22s}.hero .inner>p:not(.eyebrow){animation-delay:.32s}.hero .button{animation-delay:.42s}
.button,.nav-contact,.contact-actions a,.entry-select button,.filter{position:relative;cursor:pointer;transition:background .22s,color .22s,box-shadow .22s,transform .22s,border-color .22s;border-radius:2px}
.button{border:1px solid #d8dfe5;border-bottom-color:#b7c1cb;box-shadow:0 5px 0 #bcc7d0,0 10px 22px #071c421c;min-height:58px;justify-content:space-between}
.button:after{transition:transform .22s;line-height:1}.button:hover:after{transform:translateX(5px)}
.button:hover{background:#eaf0f5;transform:translateY(-2px);box-shadow:0 7px 0 #b0bdc9,0 14px 25px #071c4226}
.button:active{transform:translateY(4px);box-shadow:0 1px 0 #b0bdc9,0 3px 8px #071c421a}
.button.dark,.nav-contact{background:#102d4f;border-color:#213f60;box-shadow:0 5px 0 #04132b,0 10px 20px #071c4220;color:#fff}
.button.dark:hover,.nav-contact:hover{background:#23567e;transform:translateY(-2px);box-shadow:0 7px 0 #04132b,0 14px 25px #071c4226}
.button.dark:active,.nav-contact:active{transform:translateY(4px);box-shadow:0 1px 0 #04132b}
.button.outline{background:#fff;border-color:#acbac8;color:var(--navy)}
a:focus-visible,button:focus-visible{outline:3px solid #da9c22;outline-offset:5px}
.section{position:relative;padding:100px 0}.section.pale{background:#f0f2f4;border-top:1px solid #e2e7eb;border-bottom:1px solid #e2e7eb}
.section h2{letter-spacing:.025em}.eyebrow{color:#32658a;letter-spacing:.18em}.copy{color:#394653}
.section.navy{background:linear-gradient(125deg,#152f4b,#071c36 70%);box-shadow:inset 0 1px #ffffff18,0 12px 30px #071c4214}.section.navy .eyebrow{color:#a4bfd5}
.process{gap:15px;border:0;counter-reset:process}.process article{padding:30px 24px;border:1px solid #ffffff25!important;background:#ffffff06;box-shadow:inset 0 1px #ffffff12,0 8px 18px #0002;position:relative}
.process article:not(:last-child):after{content:"→";position:absolute;right:-14px;top:48%;z-index:1;color:#9bb0c7;font-size:18px}
.kanji{border:0;border-bottom:2px solid #8498ab;margin:20px 0;background:#ffffff0a;font-size:29px}
.fields{gap:0;background:#fff;border:1px solid #d9e0e6;box-shadow:0 12px 30px #071c420a}.fields article{padding:32px 27px;border-left:1px solid #d9e0e6}.fields article:first-child{border-left:0}.fields article:last-child{border-right:0}
.fields h3{font-size:18px;font-weight:700;margin-top:20px}.icon{width:38px;height:38px;line-height:1}.icon svg{display:block;width:100%;height:100%}.strength-list .icon{width:28px;height:28px;top:28px}
.strength>div:first-child{position:relative;padding:0 15px 15px 0}.strength>div:first-child:after{content:"";position:absolute;z-index:-1;inset:18px 0 0 18px;background:#dee4e9}
.strength img{max-height:none;box-shadow:0 12px 28px #071c421c}.strength-list article{padding-left:48px}
.work-photos{gap:36px}.work-photos figure{border:0;border-bottom:3px solid #173853;box-shadow:0 10px 24px #071c4212;overflow:hidden}
.work-photos img{aspect-ratio:4/3;object-fit:cover;background:#dbe2e8;transition:transform .65s}.work-photos figure:hover img{transform:scale(1.025)}
.work-photos figcaption{position:relative;background:#fff;padding:18px 22px}.work-photos figcaption:before{content:"";display:inline-block;vertical-align:middle;width:18px;height:2px;background:var(--blue);margin-right:12px}
.card{overflow:hidden;box-shadow:0 8px 24px #071c4210;transition:transform .25s,box-shadow .25s}.card:hover{transform:translateY(-6px);box-shadow:0 18px 35px #071c4220}.card img{display:block;transition:transform .5s}.card:hover img{transform:scale(1.035)}.card-body{padding:25px}.card .text-link{border:0;font-size:13px}.card .text-link:after{content:" →"}
.text-link{padding:4px 0;transition:color .2s,border-color .2s}.text-link:hover{color:#0d80bd;border-color:#0d80bd}
.recruit-strip{position:relative;background:linear-gradient(105deg,#dfe7ec,#f4f6f7);border-top:1px solid #ced9e2;box-shadow:inset 0 1px #fff}.recruit-strip:before{content:"";position:absolute;top:0;left:0;width:7px;height:100%;background:#254f73}
.contact-band{background:linear-gradient(120deg,#173650,#0a213c);box-shadow:inset 0 1px #ffffff24}.contact-band .eyebrow{color:#a9bfd0}
.contact-actions a{background:#ffffff07;box-shadow:0 5px 0 #04152a,inset 0 1px #ffffff14}.contact-actions a:hover{background:#fff;color:var(--navy);transform:translateY(-3px);box-shadow:0 8px 0 #04152a}.contact-actions a:active{transform:translateY(4px);box-shadow:0 1px 0 #04152a}
.footer-brand img{width:60px;height:40px;object-fit:contain}.footer-links a{transition:color .2s}.footer-links a:hover{color:#ffe400}
.page-head{position:relative;background:linear-gradient(115deg,#1b3853,#071c36);border-bottom:5px solid #244f73;box-shadow:inset 0 1px #ffffff20}.page-head .container{border-left:2px solid #ffe400;padding-left:28px}.page-head .eyebrow{color:#9ab6cb}.page-head h1{font-size:46px}.page-head p:last-child{margin-bottom:0}
.recruit-video-section{background:linear-gradient(125deg,#0b223d,#173b58);color:#fff;position:relative;overflow:hidden}.recruit-video-section:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,transparent 55%,#ffffff08);pointer-events:none}.recruit-video-copy{max-width:760px;margin-bottom:34px}.recruit-video-copy .eyebrow{color:#9fc3df}.recruit-video-copy p:last-child{color:#d4e0e9}.recruit-video-frame{position:relative;max-width:980px;margin:auto;padding:10px;background:#fff;box-shadow:0 24px 55px #020c1d80}.recruit-video-frame:after{content:"";position:absolute;left:4%;right:4%;bottom:-18px;height:18px;background:#020c1d50;filter:blur(14px);z-index:-1}.recruit-video-frame video{display:block;width:100%;aspect-ratio:16/9;background:#000;object-fit:contain}
.why article{background:#fff;border:1px solid #d8e0e6;border-top:3px solid #285d85;box-shadow:0 8px 22px #071c420d}.profile,.job-table{box-shadow:0 8px 25px #071c4208;background:#fff}.site-list{box-shadow:0 8px 25px #071c420a}.entry-select button{box-shadow:0 4px 0 #bac6d1,0 8px 18px #071c420c}.entry-select button:hover{transform:translateY(-2px);border-color:var(--blue)}.entry-select button:active{transform:translateY(3px);box-shadow:0 1px 0 #bac6d1}.entry-select button.active{box-shadow:0 4px 0 #04152a}.entry-select button.active .num{color:#aec9de}
.filter:hover{border-color:var(--blue);background:#e9eff3}.filter.active:hover{background:var(--navy)}.phone-box{box-shadow:0 9px 26px #071c420b;border-top:3px solid var(--navy)}
.opening{position:fixed;inset:0;z-index:1000;pointer-events:none;background:#071a32;color:white;display:grid;place-items:center;animation:opening-out .7s 1.05s cubic-bezier(.76,0,.24,1) forwards}
.opening-brand{text-align:center;animation:rise-in .65s both}.opening-brand img{width:125px;height:70px;object-fit:contain;display:block;margin:0 auto 18px}.opening-brand span{display:block;font-size:clamp(30px,6vw,58px);font-weight:700;letter-spacing:.16em;line-height:1.3}.opening-brand small{display:block;font-size:13px;letter-spacing:.24em;margin-top:16px}.opening-brand i{display:block;height:2px;width:80px;background:linear-gradient(90deg,#3278c4 33%,#ef3340 33% 66%,#ffe400 66%);margin:30px auto 0;transform-origin:left;animation:line-draw .8s .1s both}
.intro-playing .hero:before{animation-delay:1s}.intro-playing .hero .inner>*{animation-delay:1.2s}.intro-playing .hero .inner h1{animation-delay:1.32s}.intro-playing .hero .inner>p:not(.eyebrow){animation-delay:1.42s}.intro-playing .hero .button{animation-delay:1.52s}
@keyframes opening-out{to{transform:translateY(-100%);visibility:hidden}}@keyframes line-draw{from{transform:scaleX(0)}to{transform:scaleX(1)}}@keyframes rise-in{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}@keyframes photo-settle{from{transform:scale(1.045)}to{transform:scale(1)}}
@media(max-width:1050px) and (min-width:801px){.header{padding:0 24px}.header nav{gap:16px;font-size:13px}.brand b{font-size:16px}.nav-contact{padding:14px}.brand img{width:45px}.process{gap:10px}.process article{padding:24px 16px}.fields article{padding:25px 18px}}
@media(max-width:800px){.header{height:76px;padding:0 18px}.header nav{top:76px;z-index:20}.brand img{width:44px;height:34px}.hero{height:620px;min-height:540px;max-height:calc(100svh - 76px)}.hero .inner{padding:30px 0 45px 19px;width:calc(100% - 40px)}.hero .inner:before{top:30px}.hero h1{font-size:clamp(29px,6.7vw,43px);letter-spacing:.02em}.hero p{font-size:14px;max-width:31em}.hero .eyebrow{font-size:11px}.hero:before{background-position:60% center}.hero:after{background:linear-gradient(90deg,#031734dd,#03173475)}.section{padding:65px 0}.section h2{font-size:30px}.process{grid-template-columns:1fr 1fr;gap:15px}.process article:not(:last-child):after{display:none}.process article{padding:24px 20px}.fields{grid-template-columns:1fr 1fr}.fields article,.fields article:last-child{border:0;border-bottom:1px solid var(--line)}.fields article:nth-child(even){border-left:1px solid var(--line)}.fields article:nth-last-child(-n+2){border-bottom:0}.work-photos{gap:24px}.contact-actions a{max-width:480px;margin:16px auto}.page-head h1{font-size:36px}.page-head .container{padding-left:20px}.strength>div:first-child{z-index:0}.button{font-size:14px}.profile dd{overflow-wrap:anywhere}.job-table td{overflow-wrap:anywhere}}
@media(max-width:480px){.container{width:calc(100% - 40px)}.hero .button{padding:14px 18px}.process{grid-template-columns:1fr}.process article{min-height:0}.fields article{padding:24px 16px}.fields h3{font-size:16px}.fields p{font-size:13px}.recruit-strip h2{font-size:26px}.contact-band h2{font-size:27px}.profile{grid-template-columns:95px 1fr}.profile dt,.profile dd{padding:15px 12px}.job-table th,.job-table td{padding:14px 10px}.job-table th{width:90px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.opening{display:none!important}}