*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;color:#0c1b33;background:#fff;line-height:1.75}
a{text-decoration:none;color:inherit}
.site-header{position:sticky;top:0;z-index:50;min-height:86px;display:flex;align-items:center;justify-content:space-between;padding:12px 6vw;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);box-shadow:0 8px 28px rgba(0,30,80,.08)}
.brand{display:flex;align-items:center;gap:14px}
.brand img{width:76px;height:54px;object-fit:cover;border-radius:8px}
.brand strong{display:block;font-size:28px;letter-spacing:.08em;color:#071a44;line-height:1}
.brand span{display:block;font-size:12px;color:#1166b3;font-weight:700}
.nav{display:flex;align-items:center;gap:24px;font-weight:700;font-size:14px}
.nav a{color:#071a44}
.nav-cta{background:#071a44!important;color:#fff!important;padding:12px 18px;border-radius:3px}

.hero{position:relative;min-height:700px;display:flex;align-items:center;overflow:hidden;background:#06162e;color:#fff}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,10,25,.94),rgba(2,10,25,.78) 45%,rgba(2,10,25,.20));z-index:1}
.hero-art{position:absolute;inset:0;background:radial-gradient(circle at 76% 42%,#2488d6 0,#0b315a 25%,#06162e 62%)}
.machine{position:absolute;right:5vw;top:125px;width:48vw;height:420px;border-radius:24px;background:linear-gradient(135deg,rgba(255,255,255,.18),rgba(255,255,255,.03));box-shadow:inset 0 0 0 1px rgba(255,255,255,.16),0 40px 80px rgba(0,0,0,.35)}
.machine-body{position:absolute;right:120px;top:125px;width:390px;height:170px;border-radius:30px;background:linear-gradient(135deg,#8ec2e8,#143f66);box-shadow:0 18px 45px rgba(0,0,0,.32)}
.machine-body:before{content:"";position:absolute;left:35px;top:-48px;width:240px;height:55px;border-radius:28px;background:#b5d7ee}
.machine-body:after{content:"";position:absolute;right:-72px;top:34px;width:110px;height:110px;border-radius:50%;background:linear-gradient(135deg,#e4f1fa,#2f668f)}
.machine-panel{position:absolute;left:90px;top:130px;width:150px;height:220px;border-radius:8px;background:linear-gradient(160deg,#dbe9f3,#647b90);box-shadow:0 16px 35px rgba(0,0,0,.35)}
.machine-panel:after{content:"";position:absolute;left:30px;top:35px;width:90px;height:60px;background:#081629;border-radius:4px}
.machine-pipe{position:absolute;right:120px;top:74px;width:280px;height:42px;border-radius:22px;background:#b8d3e7}
.machine-base{position:absolute;left:70px;right:80px;bottom:70px;height:32px;background:#2d4f70;border-radius:6px}
.hero-content{position:relative;z-index:2;width:min(800px,90vw);padding-left:6vw}
.eyebrow{font-size:14px;font-weight:800;color:#69b7ff;letter-spacing:.08em}
.eyebrow.dark{color:#006de5}
.hero h1{font-size:clamp(38px,5vw,68px);line-height:1.25;margin:18px 0;font-weight:900;letter-spacing:.02em}
.lead{font-size:clamp(20px,2.3vw,30px);font-weight:800;margin:0 0 24px}
.body{font-size:17px;max-width:680px;color:#e7f0fb}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-top:34px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:15px 28px;border:1px solid rgba(255,255,255,.75);font-weight:800;border-radius:3px}
.btn.primary{background:#006de5;border-color:#006de5;color:#fff}
.btn.secondary{color:#fff}

.reasons{padding:60px 6vw;background:#f7fbff}
.reasons h2,.section-title h2{font-size:34px;text-align:center;color:#071a44;margin:0 0 34px}
.reason-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.reason-grid article{background:#fff;padding:26px;border-radius:16px;box-shadow:0 12px 34px rgba(0,40,90,.08)}
.reason-grid span{color:#006de5;font-weight:900}
.reason-grid h3{font-size:22px;margin:8px 0}
.reason-grid p{margin:0;color:#526072}

.section{padding:86px 6vw}
.section-title p{text-align:center;color:#006de5;font-weight:900;letter-spacing:.18em;margin:0 0 6px}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 16px 42px rgba(0,32,80,.10);border:1px solid #e6edf5}
.card h3{font-size:22px;margin:22px 22px 8px;color:#071a44}
.card p{margin:0 22px 26px;color:#526072}
.thumb{height:170px;background:#dcecf8;position:relative;overflow:hidden}
.thumb:before{content:"";position:absolute;inset:24px;border-radius:18px;background:linear-gradient(135deg,#80bce7,#0b477d)}
.thumb:after{content:"";position:absolute;width:120px;height:70px;right:32px;bottom:28px;border-radius:35px;background:rgba(255,255,255,.60)}
.maintenance:before{background:linear-gradient(135deg,#9fc5dd,#2e617d)}
.test:before{background:linear-gradient(135deg,#b9d9ee,#246ba5)}
.overhaul:before{background:linear-gradient(135deg,#9cc8e5,#163b60)}
.renewal:before{background:linear-gradient(135deg,#bdddf2,#0b5fa8)}
.biomass:before{background:linear-gradient(135deg,#a8d7c2,#1b6b51)}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#d6e3f0}
.stats div{background:#071a44;color:#fff;padding:34px 24px;text-align:center}
.stats strong{display:block;color:#69b7ff;font-size:14px}
.stats span{display:block;font-size:34px;font-weight:900;margin:8px 0}
.stats p{margin:0;color:#dcecff}

.works{background:#f7fbff}
.work-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.work-grid article{background:#fff;padding:32px;border-radius:18px;border-left:6px solid #006de5;box-shadow:0 12px 34px rgba(0,40,90,.08)}
.work-grid span{font-weight:900;color:#006de5}
.work-grid h3{font-size:23px;margin:10px 0;color:#071a44}
.work-grid p{color:#526072;margin:0}

.maker{padding:86px 6vw;display:grid;grid-template-columns:1fr 1.1fr;gap:44px;align-items:center;background:#071a44;color:#fff}
.maker h2{font-size:36px;margin:0 0 18px}
.maker p{color:#dcecff}
.maker-box{display:flex;gap:12px;flex-wrap:wrap}
.maker-box span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);padding:13px 18px;border-radius:999px;font-weight:800}

.company{display:grid;grid-template-columns:1fr 1fr;gap:36px}
.message,.company-box{background:#fff;border:1px solid #e6edf5;box-shadow:0 16px 42px rgba(0,32,80,.08);border-radius:18px;padding:34px}
.message h2,.company-box h2{font-size:30px;margin:0 0 12px;color:#071a44}
.message h3{font-size:24px;color:#006de5;margin:0 0 18px}
.signature{font-weight:900;text-align:right}
dl{display:grid;grid-template-columns:120px 1fr;gap:14px 18px;margin:0}
dt{font-weight:900;color:#071a44}
dd{margin:0;color:#526072}

.contact{padding:86px 6vw;background:linear-gradient(135deg,#06162e,#0d3b6c);color:#fff;text-align:center}
.contact h2{font-size:38px;margin:0 0 12px}
.contact-direct{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin:24px 0}
.phone,.mail{display:inline-block;font-size:24px;font-weight:900;background:#fff;color:#071a44;padding:12px 24px;border-radius:8px}
.small,.form-note{color:#dcecff;font-size:13px}
.contact-form{max-width:860px;margin:34px auto 0;text-align:left;background:#fff;color:#071a44;border-radius:18px;padding:28px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
label{display:block;font-weight:900;margin-bottom:16px}
input,textarea{width:100%;margin-top:6px;padding:14px 14px;border:1px solid #cbd7e4;border-radius:8px;font-size:16px;font-family:inherit}
textarea{min-height:160px;resize:vertical}
button{width:100%;border:0;background:#006de5;color:#fff;font-weight:900;font-size:18px;padding:16px;border-radius:8px;cursor:pointer}

footer{padding:34px 6vw;background:#030a17;color:#cbd7e4;text-align:center}
.footer-brand{font-size:28px;font-weight:900;color:#fff;letter-spacing:.12em}

@media (max-width: 980px){
  .nav{display:none}
  .hero{min-height:760px}
  .machine{opacity:.35;right:-20vw;width:90vw}
  .reason-grid,.service-grid,.stats{grid-template-columns:1fr 1fr}
  .maker,.company{grid-template-columns:1fr}
}
@media (max-width: 640px){
  .site-header{padding:10px 5vw}
  .brand img{width:64px;height:46px}
  .brand strong{font-size:24px}
  .hero-content{padding:0 5vw}
  .reason-grid,.service-grid,.stats,.work-grid,.form-row{grid-template-columns:1fr}
  .section,.reasons,.maker,.contact{padding-left:5vw;padding-right:5vw}
  dl{grid-template-columns:1fr}
  .phone,.mail{font-size:18px;width:100%}
}