@charset "UTF-8";
:root{--green:#007d78;--deep:#00504e;--ink:#18272d;--muted:#62696a;--pale:#f0f8f9;--line:#dfe8e8;--serif:"Yu Mincho","Hiragino Mincho ProN",serif;--sans:"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:85px}body{margin:0;color:var(--ink);font:15px/1.85 var(--sans);background:white}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}img{display:block;max-width:100%;object-fit:cover}h1,h2,h3,p{margin:0}h1,h2{font-family:var(--serif);font-weight:700;letter-spacing:.08em}h2{font-size:32px;line-height:1.5}h3{font-size:18px;line-height:1.6}p{color:var(--muted)}.container{width:min(1200px,calc(100% - 80px));margin:auto}.section{padding:36px 0}.eyebrow{color:var(--green);font-size:12px;font-weight:700;letter-spacing:.12em;margin-bottom:4px}.icon{width:28px;height:28px;flex-shrink:0}.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;background:var(--green);color:white;border:1px solid transparent;border-radius:4px;padding:12px 24px;font-size:14px;font-weight:700;letter-spacing:.04em;line-height:1.6;box-shadow:0 3px 8px #002b3210;transition:background .2s,transform .2s}.button>span:last-child{margin-left:auto}.button:hover{background:var(--deep);transform:translateY(-1px)}a:focus-visible,button:focus-visible,[tabindex]:focus-visible{outline:3px solid #db9a25;outline-offset:4px}.text-link{display:inline-flex;align-items:center;gap:20px;color:var(--green);font-size:14px;font-weight:700;margin-top:18px;border-bottom:1px solid #9fc7c5}.header{min-height:72px;padding:10px 24px;display:flex;align-items:center;justify-content:space-between;gap:24px;background:white}.brand{display:flex;gap:12px;align-items:center;white-space:nowrap}.brand strong{display:block;font-family:var(--serif);font-size:19px;letter-spacing:.1em;line-height:1.5}.brand small{display:block;font-size:9px;letter-spacing:.13em}.brand-mark{display:block;position:relative;width:55px;height:39px;overflow:hidden;flex-shrink:0}.brand-mark i{display:block;position:absolute;width:19px;height:19px;background:var(--green);transform:rotate(45deg)}.brand-mark i:nth-child(1){left:21px;top:0}.brand-mark i:nth-child(2){left:6px;top:16px}.brand-mark i:nth-child(3){left:36px;top:16px;background:#369b98}.header nav{display:flex;gap:20px;font-size:12px;font-weight:700}.header nav a:hover{color:var(--green)}.header-contact{display:flex;gap:18px;align-items:center}.phone{display:flex;align-items:center;justify-content:center;gap:12px;white-space:nowrap;line-height:1.25}.phone .icon{color:var(--green)}.phone strong{display:block;font-size:25px;letter-spacing:.02em}.phone small{display:block;font-size:11px;font-weight:400;margin-top:3px}.header .phone strong{font-size:18px}.header .button{padding:10px 14px;font-size:12px}.header .icon{width:22px;height:22px}.menu-toggle{display:none}.hero{position:relative;min-height:490px;padding:70px 0 35px;background:linear-gradient(90deg,#002725f5 0%,#003e3bd9 35%,#00332a35 68%,#00332a08 100%),url('../images/hero.jpg') right 52%/auto 125% no-repeat;background-color:#176b6c;color:white}.hero h1{font-size:clamp(34px,3.8vw,58px);line-height:1.38;text-shadow:0 2px 5px #0003}.hero-copy{color:white;font-size:17px;font-weight:700;margin-top:16px}.hero-values{display:flex;gap:0;margin:24px 0;padding:0;list-style:none;font-weight:700}.hero-values li{display:flex;align-items:center;gap:12px;padding:0 22px;border-right:1px solid #ffffff65}.hero-values li:first-child{padding-left:0}.hero-values li:last-child{border:0}.contact-buttons{display:flex;align-items:stretch;gap:14px}.hero .button,.contact .button{border:1px solid white;box-shadow:0 0 0 3px #ffffff15 inset}.contact-buttons .phone{background:white;color:var(--ink);padding:12px 24px;border:1px solid #dce8e9;border-radius:5px}.service{background:linear-gradient(115deg,#f7fbfb,var(--pale))}.service-layout{display:grid;grid-template-columns:30% 1fr;gap:35px}.section-intro h3{font-family:var(--serif);font-size:21px;margin:14px 0}.section-intro p:not(.eyebrow){font-size:14px;line-height:1.95}.service-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.service-card{background:white;border-radius:3px;overflow:hidden}.service-card>img{width:100%;height:auto;aspect-ratio:1.68}.card-body{padding:22px 24px 18px;position:relative}.round-icon{position:absolute;top:-17px;left:22px;width:48px;height:48px;border:3px solid white;border-radius:50%;background:var(--green);color:white;display:grid;place-items:center}.card-body h3{font-family:var(--serif);text-align:center;margin:0 0 18px 22px}.card-body p{font-size:14px;line-height:1.8}.card-body .text-link{margin-top:10px;border:0}.reason-layout{display:grid;grid-template-columns:30% 1fr;gap:15px}.reason-cards{display:grid;grid-template-columns:repeat(4,1fr)}.reason-cards article{padding:0 18px;text-align:center;border-left:1px solid var(--line)}.reason-cards .icon{width:48px;height:48px;color:var(--green);margin:0 auto 8px}.reason-cards h3{font-size:16px;margin-bottom:10px}.reason-cards p{font-size:13px;line-height:1.8}.works{color:white;background:linear-gradient(#071c1bd0,#071c1bc0),url('../images/road.jpg') center/cover}.works-layout{display:grid;grid-template-columns:27% 1fr;gap:32px;align-items:center}.works .eyebrow{color:white}.works h3{color:inherit}.works .button{border-color:#fff}.work-cards{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:thin}.work-card{flex:0 0 calc((100% - 32px)/3);background:white;color:var(--ink);border:2px solid white;border-radius:3px;overflow:hidden;scroll-snap-align:start}.work-card img{width:100%;height:auto;aspect-ratio:1.85}.work-card>div{padding:10px 16px 15px}.tag{font-size:11px;background:var(--green);color:white;padding:2px 6px}.work-card h3{font-size:15px;margin:4px 0}.work-card p{font-size:13px;line-height:1.65}.slider-controls{display:flex;justify-content:flex-end;gap:5px;margin-bottom:8px}.slider-controls button{border:0;background:white;color:var(--green);border-radius:3px;font-size:25px;width:35px;height:35px;line-height:1}.flow-subtitle{font-size:14px;margin-bottom:20px}.steps{display:grid;grid-template-columns:repeat(5,1fr);list-style:none;padding:0;margin:0}.steps li{text-align:center;position:relative;padding:0 22px}.step-number{position:absolute;top:6px;left:0;font-weight:700;color:var(--green)}.steps .icon{color:var(--green);width:40px;height:40px;margin-bottom:8px}.steps h3{font-size:15px;border-top:1px solid var(--line);padding-top:8px;position:relative}.steps li:not(:last-child) h3:after{content:'';position:absolute;right:-25px;top:-5px;border-left:7px solid var(--line);border-top:4px solid transparent;border-bottom:4px solid transparent}.steps p{font-size:13px;margin-top:10px}.company{min-height:280px;border-block:1px solid var(--line);background:url('../images/company.jpg') right center/auto 100% no-repeat;position:relative;isolation:isolate}.company:before{content:'';position:absolute;inset:0;background:linear-gradient(115deg,white 0%,white 45%,#fff0 45.2%);z-index:-1}.company-copy{max-width:540px}.company h3{margin:10px 0;font-size:17px}.company p:not(.eyebrow){font-size:14px;max-width:480px}.company .button{margin-top:12px}.news-layout{display:grid;grid-template-columns:20% 1fr;gap:30px}.news-list{list-style:none;padding:0;margin:0}.news-list li{display:grid;grid-template-columns:100px 80px 1fr;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding:9px 0;font-size:13px}.news-list time{color:var(--muted)}.news-list li>span{border:1px solid #bfd6d7;text-align:center;font-size:11px;line-height:1.5}.contact{background:linear-gradient(90deg,#003a36f0,#004b4690),url('../images/hero.jpg') center 60%/cover;color:white}.contact-layout{display:flex;justify-content:space-between;align-items:center;gap:20px}.contact h2{font-size:25px}.contact .eyebrow{color:#59d2c6}.contact p:not(.eyebrow){color:white;font-size:13px;margin-top:12px}.contact .button{min-width:250px}.footer{padding:28px 0;background:var(--deep);color:white}.footer-layout{display:flex;align-items:center;justify-content:space-between;gap:25px}.footer .brand-mark i{background:white}.footer nav{display:flex;gap:14px;font-size:10px;flex-wrap:wrap}.footer small{font-size:10px}.footer .brand strong{font-size:16px}.footer .brand small{font-size:8px}.skip{position:absolute;left:10px;top:-80px;background:white;padding:10px;z-index:10}.skip:focus{top:10px}dialog{border:0;border-radius:8px;padding:32px;max-width:calc(100% - 40px);box-shadow:0 10px 50px #0003}dialog::backdrop{background:#001f24aa}dialog h2{font-size:24px;margin-bottom:16px}dialog p{margin-bottom:16px}dialog .button{margin-top:8px}
@media(min-width:1500px){.hero{background-size:auto 150%}}
@media(max-width:1200px){.header{gap:15px;padding-inline:20px}.header-contact .phone{display:none}.header nav{gap:14px;font-size:11px}.brand strong{font-size:16px}.container{width:calc(100% - 60px)}.contact-layout{flex-direction:column;align-items:flex-start}.card-body{padding-inline:16px}.round-icon{left:12px}.reason-cards article{padding-inline:12px}.hero{min-height:460px}.hero h1{font-size:46px}.footer-layout{flex-wrap:wrap}}
@media(max-width:900px){.header{flex-wrap:wrap;min-height:68px;position:relative}.header-contact{display:none}.menu-toggle{display:flex;gap:12px;align-items:center;background:white;border:1px solid var(--line);padding:6px 12px;color:var(--green);font-size:12px}.header nav{display:none;flex:1 0 100%;padding:12px 0;grid-template-columns:repeat(3,1fr);font-size:13px}.header nav.is-open{display:grid}.container{width:calc(100% - 44px)}.hero{padding-top:50px;background-position:right center}.hero h1{font-size:40px}.service-layout{grid-template-columns:1fr}.service .section-intro p{max-width:650px}.service .section-intro h3 br{display:none}.reason-layout{grid-template-columns:1fr;gap:20px}.reason-cards article:first-child{border:0}.works-layout{grid-template-columns:1fr;gap:12px}.works .section-intro{display:grid;grid-template-columns:1fr 1fr}.works .section-intro .eyebrow{grid-column:1/-1}.works .section-intro h3{grid-column:1;margin:8px 0}.works .section-intro .button{grid-column:2;grid-row:2/4;justify-self:end;align-self:center}.company:before{background:linear-gradient(110deg,white 0%,#fffffff5 40%,#ffffff20 100%)}.steps li{padding-inline:12px}.steps h3{font-size:13px}.steps p{font-size:12px}.steps li:not(:last-child) h3:after{right:-16px}.news-layout{grid-template-columns:1fr;gap:15px}}
@media(max-width:600px){html{scroll-padding-top:20px}.container{width:calc(100% - 36px)}.section{padding:32px 0}h2{font-size:27px}.header{padding:12px 18px}.brand-mark{transform:scale(.8);transform-origin:left center;width:46px;margin-right:-5px}.brand{gap:5px}.brand strong{font-size:15px}.brand small{font-size:8px}.menu-toggle{padding:5px 9px;font-size:11px}.hero{min-height:560px;padding:45px 0 30px;background-image:linear-gradient(90deg,#002b2beb,#00302a79),url('../images/hero.jpg');background-size:cover}.hero h1{font-size:clamp(29px,7.3vw,43px);line-height:1.6;letter-spacing:.05em}.hero-copy{font-size:14px;line-height:1.9;margin-top:20px}.hero-values{justify-content:space-between;margin:24px 0;font-size:11px}.hero-values li{gap:5px;padding:0 9px}.hero-values .icon{width:22px;height:22px}.contact-buttons{flex-direction:column;width:100%;gap:12px}.contact-buttons .button{min-height:54px;padding-inline:18px}.contact-buttons .phone{padding:11px 18px}.phone strong{font-size:24px}.service-layout{gap:24px}.service-cards{grid-template-columns:1fr;gap:20px}.service-card{display:grid;grid-template-columns:41% 1fr;overflow:visible}.service-card>img{height:100%;aspect-ratio:auto;border-radius:3px 0 0 3px;min-height:190px}.card-body{padding:20px 16px}.round-icon{position:static;width:36px;height:36px;float:left;margin-right:8px;border-width:2px}.round-icon .icon{width:23px;height:23px}.card-body h3{text-align:left;margin:4px 0 12px;font-size:18px}.card-body p{clear:both;font-size:13px}.card-body .text-link{font-size:12px}.reason-cards{grid-template-columns:repeat(2,1fr);gap:24px 0}.reason-cards article:nth-child(3){border-left:0}.reason-cards h3{font-size:14px}.reason-cards p{font-size:12px}.reason-cards .icon{width:40px;height:40px}.works .section-intro{display:block}.works .section-intro .button{margin-top:8px}.work-card{flex-basis:82%;max-width:340px}.work-card img{aspect-ratio:1.8}.work-card h3{font-size:17px}.work-card p{font-size:14px}.flow h2{font-size:24px;letter-spacing:.02em}.steps{grid-template-columns:1fr;gap:0;margin-top:8px}.steps li{display:grid;grid-template-columns:48px 1fr;text-align:left;column-gap:16px;padding:18px 0 18px 38px;border-bottom:1px solid var(--line)}.steps .icon{grid-row:1/3;align-self:center;margin:0}.step-number{top:20px}.steps h3{border:0;padding:0;font-size:16px}.steps p{margin-top:5px;font-size:13px}.steps li h3:after{display:none}.company{padding:35px 0 200px;background-size:auto 220px;background-position:right bottom}.company:before{background:linear-gradient(white 0%,white 45%,#ffffff00 68%)}.company h3{font-size:16px}.company p:not(.eyebrow){font-size:13px}.desktop-only{display:none}.news-list li{grid-template-columns:95px 70px;gap:6px 12px;padding:13px 0}.news-list p{grid-column:1/-1;font-size:13px}.contact h2{font-size:23px;letter-spacing:.03em}.contact-layout{gap:24px}.footer-layout{display:block}.footer nav{margin:24px 0 18px;gap:12px 18px;font-size:11px}.footer .brand{gap:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* 2026-11-02: 全面写真と文字背後のシャドウ */
.hero{background-image:linear-gradient(90deg,rgba(0,20,20,.72) 0%,rgba(0,20,20,.52) 38%,rgba(0,20,20,.16) 68%,rgba(0,20,20,.04) 100%),url('../images/hero-wide.jpg');background-size:cover;background-position:center;background-repeat:no-repeat}
.hero h1{text-shadow:0 2px 8px #0009}.hero-copy,.hero-values{text-shadow:0 2px 6px #000b}
@media(max-width:900px){.hero{background-position:65% center}}
@media(max-width:600px){.hero{background-image:linear-gradient(90deg,rgba(0,20,20,.72),rgba(0,20,20,.32)),url('../images/hero-wide.jpg');background-size:cover;background-position:72% center}}