*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:#10243b;font-family:"Yu Gothic","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;line-height:1.8;background:#fff}a{text-decoration:none;color:inherit}.container{width:min(1180px,calc(100% - 48px));margin:auto}.site-header{position:fixed;z-index:50;top:0;left:0;right:0;background:rgba(4,22,42,.94);border-bottom:1px solid rgba(255,255,255,.18);backdrop-filter:blur(10px)}.header-inner{width:min(1440px,calc(100% - 40px));height:92px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:30px}.company-name{color:#fff;display:flex;flex-direction:column;line-height:1.2;white-space:nowrap}.company-name strong{font-size:28px;letter-spacing:.03em}.company-name small{font-size:10px;letter-spacing:.19em;color:#9eb7cf}.main-nav{display:flex;align-items:center;gap:22px;color:#fff;font-size:13px;font-weight:700}.main-nav a{padding:10px 0}.main-nav a:hover{color:#48b8ff}.nav-contact{border:1px solid #6cc6ff;padding:10px 15px!important}.menu-button{display:none;background:none;border:0;color:#fff;font-size:30px}.hero{height:820px;min-height:700px;position:relative;background:url("assets/hero-plant.jpg") center/cover no-repeat;color:#fff;display:flex;align-items:center;padding-top:92px;overflow:hidden}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(1,15,31,.96) 0%,rgba(2,24,48,.86) 45%,rgba(3,30,57,.35) 72%,rgba(2,15,31,.22) 100%)}.hero-content{position:relative;z-index:2;width:min(1420px,calc(100% - 70px));margin:auto}.hero-kicker{letter-spacing:.28em;color:#7fd1ff;font-size:13px;font-weight:800}.hero h1{font-size:clamp(76px,9vw,150px);line-height:.92;letter-spacing:-.07em;margin:25px 0 40px;text-shadow:0 5px 30px rgba(0,0,0,.45)}.hero h2{font-size:clamp(26px,3vw,42px);line-height:1.45;margin:0 0 22px}.hero p{font-size:18px}.hero-buttons{display:flex;gap:16px;margin-top:38px}.button{display:inline-flex;min-width:190px;height:56px;align-items:center;justify-content:center;font-weight:800;border:1px solid transparent}.primary{background:#0879c4}.secondary{border-color:#fff;background:rgba(255,255,255,.06)}.light{background:#fff;color:#07213d}.hero-scroll{position:absolute;z-index:3;right:25px;bottom:35px;writing-mode:vertical-rl;letter-spacing:.22em;font-size:10px}.strengths{background:rgba(4,30,57,.98);color:#fff}.strength-grid{display:grid;grid-template-columns:repeat(5,1fr);max-width:1536px;margin:auto}.strength-grid article{text-align:center;padding:34px 24px;border-right:1px solid rgba(255,255,255,.2);background:linear-gradient(rgba(6,48,86,.90),rgba(3,30,56,.94))}.strength-grid article:last-child{border:0}.strength-grid .icon{font-size:38px;font-weight:900}.strength-grid h3{font-size:22px;margin:8px 0}.strength-grid p{font-size:14px;color:#d8e6f2;margin:0}.section{padding:110px 0}.label{color:#0879c4;font-weight:900;font-size:12px;letter-spacing:.22em}.section h2,.cta h2{font-size:clamp(36px,5vw,60px);line-height:1.35;margin:10px 0 30px;letter-spacing:-.04em}.intro-grid,.company-grid,.partner-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:80px;align-items:start}.lead{font-size:18px;color:#536474}.services{background:#f3f6f9}.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.service-grid article{background:#fff;padding:34px;border-left:5px solid #0a6da9;box-shadow:0 10px 30px rgba(8,34,60,.06)}.service-grid b{color:#0a75b9}.service-grid h3{font-size:24px}.service-grid p{color:#637382}.works{background:#081d34;color:#fff}.works .label{color:#76ccff}.work-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.work-grid article{background:#fff;color:#13283e;overflow:hidden}.work-grid article>div:last-child{padding:24px}.work-grid small{color:#0a75b9;font-weight:800}.work-photo{height:230px;background:url("assets/hero-plant.jpg") center/cover}.photo2{background-position:70% center;filter:saturate(.75)}.photo3{background-position:30% center;filter:brightness(.8)}.note{text-align:right;color:#aebdca;font-size:12px}.company dl{margin:0}.company dl div{display:grid;grid-template-columns:155px 1fr;border-bottom:1px solid #d7e0e7;padding:18px 0}.company dt{font-weight:800}.company dd{margin:0}.cta{padding:85px 0;background:linear-gradient(120deg,#0879c4,#061c34);color:#fff}.white{color:#fff}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px}.partner{background:linear-gradient(135deg,#fff,#eef5fa)}.partner-copy p{font-size:18px}.partner-copy p:first-child{margin-bottom:30px}.partner-copy a{font-weight:900;color:#0879c4}.contact{background:#f4f7fa}.contact-form{margin-top:40px;background:#fff;border-top:6px solid #082b52;padding:48px;box-shadow:0 14px 40px rgba(6,35,61,.10)}.form-row{margin-bottom:24px}.form-row.two{display:grid;grid-template-columns:1fr 1fr;gap:22px}.form-row label{display:block;font-weight:800;margin-bottom:8px}.form-row label span{background:#d84343;color:#fff;font-size:10px;padding:3px 7px;margin-left:7px}.form-row input,.form-row select,.form-row textarea{width:100%;border:1px solid #bdc9d3;background:#fff;padding:14px;font:inherit}.form-row textarea{min-height:350px;resize:vertical}.send-button{display:block;width:420px;max-width:100%;height:58px;margin:30px auto 0;border:0;background:#072d56;color:#fff;font-size:18px;font-weight:900}.form-note{text-align:center;color:#7d8a96;font-size:12px}footer{background:#04172b;color:#fff;padding:54px 0}.footer-grid{display:grid;grid-template-columns:1fr 1fr auto;align-items:center;gap:40px}.footer-grid div{display:flex;flex-direction:column}.footer-grid strong{font-size:22px}.footer-grid small,.footer-grid p{color:#afc1d1;font-size:12px}.floating{position:fixed;z-index:40;right:20px;bottom:20px;background:#0879c4;color:#fff;padding:15px 22px;font-weight:900;box-shadow:0 10px 25px rgba(0,0,0,.24)}

@media(max-width:1100px){.main-nav{display:none;position:absolute;top:92px;left:0;right:0;background:#061c34;padding:20px 30px;flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.menu-button{display:block}.strength-grid{grid-template-columns:repeat(2,1fr)}.strength-grid article:last-child{grid-column:1/-1}.work-grid{grid-template-columns:1fr}.intro-grid,.company-grid,.partner-grid{grid-template-columns:1fr;gap:30px}.footer-grid{grid-template-columns:1fr}.hero h1{font-size:90px}}@media(max-width:700px){.header-inner{height:75px}.company-name strong{font-size:17px}.company-name small{font-size:7px}.main-nav{top:75px}.hero{height:760px;padding-top:75px}.hero-content{width:min(100% - 30px,1420px)}.hero h1{font-size:60px;line-height:1}.hero h2{font-size:25px}.hero p{font-size:15px}.hero-buttons{flex-direction:column}.strength-grid{grid-template-columns:1fr}.strength-grid article:last-child{grid-column:auto}.service-grid{grid-template-columns:1fr}.section{padding:78px 0}.container{width:min(100% - 28px,1180px)}.contact-form{padding:25px 18px}.form-row.two{grid-template-columns:1fr}.form-row textarea{min-height:280px}.cta-inner{flex-direction:column;align-items:flex-start}.company dl div{grid-template-columns:1fr;gap:5px}.floating{left:14px;right:14px;text-align:center}}

/* Ver.2 お問い合わせ内容欄をパソコン表示で約10cm横に拡張 */
.contact-message-wide{
  width: calc(100% + 10cm);
  max-width: none;
  margin-right: -10cm;
}

@media(max-width:1100px){
  .contact-message-wide{
    width:100%;
    max-width:100%;
    margin-right:0;
  }
}


/* Ver.3 施工実績写真：社名文字なし */
.work-photo{
  height:230px;
  background-size:cover;
  background-position:center;
  filter:none;
}
.photo1{
  background-image:url("assets/work-hanshin.jpg");
}
.photo2{
  background-image:url("assets/work-suminoe.jpg");
  background-position:center;
  filter:none;
}
.photo3{
  background-image:url("assets/work-plant.jpg");
  background-position:center;
  filter:none;
}


/* 完成版候補：実際の施工写真 */
.photo1{background-image:url("assets/real-high-voltage.jpg")!important;background-position:center!important}
.photo2{background-image:url("assets/real-panel.jpg")!important;background-position:center!important}
.photo3{background-image:url("assets/real-cable.jpg")!important;background-position:center!important}

/* 柔軟な対応 */
.consultation{padding:90px 0;background:#fff}
.consultation h2{font-size:clamp(34px,4vw,52px);margin:8px 0 35px}
.consult-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.consult-grid article{padding:28px 24px;border-top:4px solid #0879c4;background:#f3f7fa}
.consult-grid strong{font-size:19px;color:#082b52}
.consult-grid p{font-size:14px;color:#5c6e7d}

/* 代表挨拶 */
.representative-message{
  color:#fff;
  background:
    linear-gradient(120deg,rgba(3,21,40,.98),rgba(5,48,82,.94)),
    url("assets/hero-plant.jpg") center/cover no-repeat;
}
.representative-message .label{color:#75cbff}
.message-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px}
.message-title{position:sticky;top:130px;align-self:start}
.message-title h2{font-size:clamp(38px,5vw,64px);line-height:1.35}
.message-sign{margin-top:50px;color:#c9d8e5}
.message-sign strong{font-size:18px;color:#fff}
.message-body p{color:#d8e4ed;font-size:17px;margin:0 0 24px}
.message-body strong{color:#fff}
.message-words{font-size:28px;line-height:1.8;font-weight:900;border-left:5px solid #4ebeff;padding:8px 0 8px 25px;margin:38px 0}
.message-body blockquote{margin:45px 0;padding:30px 0;border-top:1px solid rgba(255,255,255,.25);border-bottom:1px solid rgba(255,255,255,.25);font-size:clamp(30px,4vw,52px);font-weight:900;color:#8ed5ff;text-align:center}

@media(max-width:1000px){
  .consult-grid{grid-template-columns:1fr 1fr}
  .message-grid{grid-template-columns:1fr;gap:35px}
  .message-title{position:static}
}
@media(max-width:600px){
  .consult-grid{grid-template-columns:1fr}
}


/* 施工写真 最終修正版 */
.work-photo{
  position:relative;
  height:310px;
  background-size:cover!important;
  background-position:center!important;
}
.photo1{
  background-image:url("assets/final-work-left.jpg")!important;
}
.photo2{
  background-image:url("assets/final-work-middle.jpg")!important;
}
.photo3{
  background-image:url("assets/final-work-right.jpg")!important;
}
.photo-watermark{
  position:absolute;
  right:14px;
  bottom:10px;
  color:rgba(255,255,255,.76);
  font-size:10px;
  font-weight:800;
  letter-spacing:.10em;
  text-shadow:0 1px 4px rgba(0,0,0,.8);
}
.work-grid article{
  border-radius:4px;
  overflow:hidden;
}
@media(max-width:700px){
  .work-photo{height:260px}
}


/* ロゴ追加 完成版 */
.company-name{flex-direction:row!important;align-items:center;gap:13px}
.company-name-text{display:flex;flex-direction:column;line-height:1.2}
.header-logo{width:62px;height:62px;object-fit:contain;flex:0 0 auto}
.hero-company-title{display:flex;align-items:center;gap:24px;white-space:nowrap;letter-spacing:-.055em!important;font-size:clamp(54px,6.7vw,108px)!important;line-height:1!important}
.hero-logo{width:clamp(72px,7vw,104px);height:clamp(72px,7vw,104px);object-fit:contain;flex:0 0 auto}
@media(max-width:1100px){
 .header-logo{width:52px;height:52px}
 .hero-company-title{font-size:clamp(44px,7vw,78px)!important;gap:18px}
 .hero-logo{width:72px;height:72px}
}
@media(max-width:700px){
 .header-logo{width:40px;height:40px}
 .company-name{gap:8px}
 .company-name-text strong{font-size:16px!important}
 .company-name-text small{font-size:6px!important;letter-spacing:.12em!important}
 .hero-company-title{font-size:clamp(23px,6.5vw,38px)!important;gap:10px;margin:20px 0 30px!important}
 .hero-logo{width:48px;height:48px}
}

/* ロゴ視認性 最終調整 */
.header-logo,
.hero-logo,
.footer-brand img{
  background:#fff;
  border:2px solid rgba(255,255,255,.95);
  box-shadow:0 4px 16px rgba(0,0,0,.28);
}
.header-logo{padding:2px}
.hero-logo{padding:3px}
.hero-company-title{
  font-size:clamp(46px,5.6vw,88px)!important;
  gap:20px!important;
  max-width:100%;
}
.hero-company-title span{white-space:nowrap}
.footer-brand{display:flex!important;flex-direction:row!important;align-items:center;gap:14px}
.footer-brand img{width:54px;height:54px;object-fit:contain;flex:0 0 auto}
.footer-brand span{display:flex;flex-direction:column}
@media(max-width:1100px){
  .hero-company-title{font-size:clamp(38px,6vw,66px)!important}
}
@media(max-width:700px){
  .hero-company-title{font-size:clamp(22px,5.8vw,34px)!important;gap:9px!important}
  .hero-logo{width:50px;height:50px}
  .footer-brand img{width:46px;height:46px}
}