:root{--orange:#ed4b00;--ink:#18202b;--charcoal:#252e35;--paper:#faf7f5;--muted:#596069;--width:1310px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;color:var(--ink);font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:16px;line-height:1.75}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}img{display:block;max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h2{font-size:clamp(23px,2.1vw,32px);line-height:1.45;font-weight:800}a,button,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #0874b3;outline-offset:5px}.container{width:min(var(--width),calc(100% - 96px));margin-inline:auto}.skip-link{position:fixed;left:12px;top:-80px;z-index:20;background:white;padding:10px 20px}.skip-link:focus{top:8px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.site-header{background:#fff;position:relative;z-index:10;animation:arrive .6s ease both}.header-inner{width:min(1330px,calc(100% - 80px));margin:auto;min-height:84px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;line-height:1}.brand img{width:45px;height:44px;object-fit:contain}.brand span{font-family:Arial,sans-serif;font-size:32px;font-weight:750;letter-spacing:-1px}#site-nav{display:flex;align-items:center;gap:38px;font-size:14px;font-weight:700}#site-nav>a:not(.button){position:relative;padding:20px 0}#site-nav>a:not(.button)::after{content:"";position:absolute;left:0;right:0;bottom:10px;height:2px;background:var(--orange);transform:scaleX(0);transition:transform .2s}#site-nav>a:hover::after,#site-nav>a.current::after{transform:scaleX(1)}#site-nav .current{color:var(--orange)}.button{display:inline-flex;align-items:center;justify-content:center;gap:13px;padding:12px 28px;border-radius:100px;background:#cd4100;color:white;font-weight:700;line-height:1.5;transition:background .2s,box-shadow .2s,transform .2s}.button:hover{background:#c83f00;box-shadow:0 5px 16px #0002;transform:translateY(-2px)}.arrow{display:inline-block;transition:transform .2s}.button:hover .arrow,.service-card:hover .arrow{transform:translateX(4px)}.menu-toggle{display:none}.hero{position:relative;isolation:isolate;height:clamp(420px,36.2vw,560px);color:#fff;overflow:hidden}.hero-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,9,12,.81) 0%,rgba(5,9,12,.6) 30%,rgba(5,9,12,.15) 60%,rgba(5,9,12,0) 100%)}.hero-inner{height:100%;display:flex;align-items:center}.hero-copy{position:relative;animation:arrive .7s ease both;padding:28px 0}.hero h1{font-family:Arial,Helvetica,sans-serif;font-size:clamp(64px,7.5vw,110px);font-weight:750;letter-spacing:-3px;line-height:.94}.hero-japanese{font-size:clamp(20px,2.25vw,30px);font-weight:700;line-height:1.4;margin-top:16px}.hero-description{font-size:18px;margin-top:14px;line-height:1.65}.hero-button{margin-top:18px;font-size:16px;padding:10px 28px}.about-section{padding:30px 0 32px}.about-grid{display:grid;grid-template-columns:1fr 1fr 1.12fr;align-items:center;gap:38px}.building-photo{width:100%;height:300px;object-fit:cover;object-position:center;border-radius:4px}.eyebrow{color:#cd4100;font-family:Arial,sans-serif;font-size:12px;font-weight:700;letter-spacing:2px;margin-bottom:8px}.about-copy h2{font-size:clamp(23px,2vw,29px);margin-bottom:15px;line-height:1.4}.about-copy h2 span{color:#cd4100}.about-copy>p:last-child{font-size:14px;line-height:1.85}.achievements{background:var(--paper);padding:24px 18px 16px;border-radius:10px}.achievements h3{color:#cd4100;font-size:18px;margin-bottom:16px;text-align:center}.achievement-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.achievement-grid>div{background:white;border-radius:6px;text-align:center;padding:16px 5px 13px}.achievement-grid svg{width:56px;height:56px;color:var(--orange);margin-bottom:8px}.achievement-grid p{font-size:13px;font-weight:600;line-height:1.6}.years{display:flex;flex-direction:column;align-items:center;justify-content:center;height:64px;color:var(--orange);font-family:Arial,sans-serif;font-size:35px;line-height:1;font-weight:bold}.years>span{font-size:12px;margin-top:4px}.client-list{font-size:11px;margin-top:12px;color:#626269;text-align:center;line-height:1.7}.services-section{background:var(--paper);padding:24px 0}.section-heading{display:flex;align-items:center;gap:34px;margin-bottom:20px}.section-heading p:not(.eyebrow){font-size:15px}.services-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px 26px}.service-card{position:relative;background:#fff;overflow:hidden;min-height:196px;border-radius:9px;border:5px solid white;box-shadow:0 3px 14px #42342c06;transition:transform .25s,box-shadow .25s;scroll-margin-top:100px}.service-copy{position:relative;z-index:1;padding:10px 15px 16px;min-height:186px;background:linear-gradient(90deg,rgba(255,255,255,.98),rgba(255,255,255,.95) 38%,rgba(255,255,255,.7) 58%,transparent 78%)}.service-card h3{color:#cd4100;font-size:20px;display:flex;gap:12px;align-items:center;line-height:1.4;white-space:nowrap}.service-card h3 svg{width:40px;height:40px;flex-shrink:0}.service-card ul{font-size:14px;padding-left:17px;margin:9px 0 0;line-height:1.65}.service-photo{position:absolute;top:0;right:0;width:62%;height:100%;object-fit:cover;object-position:center}.service-card:nth-child(3) .service-photo{object-position:60% 60%}.card-arrow{position:absolute;z-index:2;bottom:7px;right:7px;border-radius:50%;background:white;box-shadow:0 2px 8px #0001;color:var(--orange);width:38px;height:38px;text-align:center;line-height:38px;font-size:24px}.gallery-section{padding:24px 0}.gallery-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:18px}.gallery-heading .section-heading{margin:0}.gallery-controls{display:flex;gap:8px}.gallery-controls button{background:white;color:#cd4100;border:1px solid var(--orange);border-radius:50%;width:42px;height:42px;font-size:22px;transition:background .2s,color .2s}.gallery-controls button:hover{background:var(--orange);color:white}.gallery-controls button:disabled{opacity:.35;cursor:default;background:white;color:var(--orange)}.gallery-track{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:#b8aaa2 transparent;padding-bottom:6px;overscroll-behavior-x:contain}.gallery-slide{flex:0 0 calc((100% - 56px)/4.7);scroll-snap-align:start;min-width:0}.gallery-slide img{width:100%;height:170px;object-fit:cover;border-radius:3px}.gallery-slide figcaption{font-size:11px;color:var(--muted);padding-top:5px}.contact-section{background:linear-gradient(115deg,#ce4508,#c83f00);color:#fff;padding:28px 0}.contact-grid{display:grid;grid-template-columns:1.35fr 2.35fr 1fr;gap:24px;align-items:center}.contact-grid h2{font-size:24px}.contact-grid>div>p{font-size:12px;margin-top:8px}.consultations{padding:0;margin:0;list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.consultations li{display:flex;align-items:center;gap:5px;background:white;border-radius:6px;color:var(--ink);padding:12px 8px;min-height:78px;font-size:11px;line-height:1.45}.consultations svg{width:29px;height:34px;color:#dc4300;flex-shrink:0}.button-white{background:white;color:#cd4100;font-size:14px;white-space:nowrap;padding:14px 20px}.button-white:hover{background:#fff6ed}.contact-action{text-align:center}.site-footer{background:radial-gradient(ellipse at left bottom,#303d45,var(--charcoal));color:#f4f5f6;padding:32px 0 20px;font-size:13px}.footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1fr;gap:42px}.footer-company .brand{margin-bottom:10px}.footer-company>p{font-size:12px;margin-bottom:16px}.footer-company address{font-style:normal;font-size:12px;line-height:1.9}.footer-grid h2{font-size:14px;line-height:1.5;margin:0 0 10px}.footer-grid nav,.footer-info{border-left:1px solid #ffffff28;padding-left:36px}.footer-grid nav a,.footer-info>a{display:block;line-height:1.8}.footer-grid a:not(.brand):hover{text-decoration:underline;text-underline-offset:4px}.footer-grid details{font-size:12px;line-height:1.8;margin:4px 0}.footer-grid summary{cursor:pointer}.footer-grid details p{color:#d1d8db;padding:8px 0}.privacy-note{font-size:11px;color:#c8cfd3;line-height:1.7;margin-top:10px}.footer-bottom{border-top:1px solid #ffffff55;margin-top:26px;padding-top:12px;display:flex;justify-content:space-between;align-items:center}.footer-bottom small{font-size:11px;color:#ccd0d2}.back-top{border:1px solid #aab0b5;border-radius:50%;width:34px;height:34px;text-align:center;line-height:30px}.reveal{opacity:1}.motion-enabled .reveal{transition:opacity .6s ease,translate .6s ease}.motion-enabled .reveal.pending{opacity:0;translate:0 14px}.motion-enabled .service-card.pending{transition-delay:var(--delay,0s)}@keyframes arrive{from{opacity:0;transform:translateY(9px)}to{opacity:1;transform:translateY(0)}}
@media(hover:hover){.service-card:hover{transform:translateY(-5px);box-shadow:0 12px 24px #42342c20}}
@media(min-width:1500px){.hero{height:550px}}
@media(max-width:1200px){.container{width:calc(100% - 64px)}.header-inner{width:calc(100% - 64px)}#site-nav{gap:24px}.about-grid{gap:26px}.about-copy>p:last-child{font-size:12px}.building-photo{height:280px}.achievements{padding:20px 12px}.achievements h3{font-size:16px}.achievement-grid p{font-size:11px}.service-card h3{font-size:18px}.service-card ul{font-size:12px}.service-copy{padding-left:12px}.contact-grid{grid-template-columns:1.25fr 2fr 1fr;gap:16px}.contact-grid h2{font-size:20px}.consultations li{font-size:10px;padding:10px 5px;gap:3px}.consultations svg{width:23px}.button-white{font-size:12px;padding:12px 15px}.footer-grid{gap:24px}.footer-grid nav,.footer-info{padding-left:22px}}
@media(max-width:960px){.header-inner{min-height:76px}.brand span{font-size:28px}.brand img{width:39px;height:38px}#site-nav{gap:16px;font-size:12px}.nav-contact{padding:10px 16px}.about-grid{grid-template-columns:1fr 1.1fr;gap:24px}.achievements{grid-column:1/-1;display:grid;grid-template-columns:1fr 1.5fr;align-items:center;gap:14px}.achievements h3{margin:0}.client-list{margin:0;grid-column:1/-1}.building-photo{height:280px}.about-copy>p:last-child{font-size:14px}.services-grid{gap:16px}.service-card h3{font-size:16px;gap:6px}.service-card h3 svg{width:29px;height:29px}.service-copy{padding:12px 8px;min-height:180px}.service-card ul{font-size:11px}.service-card{min-height:190px}.section-heading{gap:20px}.section-heading p:not(.eyebrow){font-size:13px}.gallery-slide{flex-basis:calc((100% - 28px)/3)}.contact-grid{grid-template-columns:1fr 1fr}.contact-grid>div:first-child{grid-column:1/-1}.consultations{grid-template-columns:repeat(5,1fr)}.contact-grid{grid-template-columns:3fr 1.3fr}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-info{grid-column:1/-1;display:flex;align-items:start;flex-wrap:wrap;gap:12px 24px;border-left:0;border-top:1px solid #fff3;padding:16px 0 0}.footer-info h2{margin:0}.privacy-note{margin:0}.footer-info details{margin:0;max-width:250px}}
@media(max-width:700px){html{scroll-padding-top:20px}.container,.header-inner{width:calc(100% - 40px)}.header-inner{min-height:70px}.brand span{font-size:28px}.brand img{width:37px;height:36px}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;background:white;border:1px solid #ddd;border-radius:5px;width:44px;height:44px;padding:11px}.menu-toggle span{display:block;width:20px;height:2px;background:var(--ink);transition:transform .2s,opacity .2s}.menu-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(7px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.menu-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}#site-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;padding:12px 24px 24px;box-shadow:0 12px 15px #0002;font-size:15px;flex-direction:column;align-items:stretch;gap:0}#site-nav.is-open{display:flex}#site-nav>a:not(.button){padding:12px 0}#site-nav>a:not(.button)::after{bottom:4px;transform-origin:left}#site-nav .button{margin-top:12px}.hero{height:480px}.hero-photo{object-position:60% center}.hero-shade{background:linear-gradient(90deg,#05090cbb,#05090c70 65%,#05090c25)}.hero h1{font-size:clamp(58px,15vw,86px);letter-spacing:-2px}.hero-japanese{font-size:20px}.hero-description{font-size:14px;line-height:1.85}.hero-button{font-size:14px;padding:11px 23px}.about-section{padding:28px 0}.about-grid{grid-template-columns:1fr;gap:24px}.building-photo{height:240px}.about-copy h2{font-size:26px}.about-copy>p:last-child{font-size:14px}.desktop-break{display:none}.achievements{grid-column:auto;display:block;padding:22px 14px}.achievements h3{font-size:17px;margin-bottom:16px}.achievement-grid p{font-size:12px}.client-list{font-size:11px;margin-top:14px}.section-heading{display:block;margin-bottom:18px}.section-heading p:not(.eyebrow){margin-top:8px;font-size:13px}h2{font-size:25px}.services-section{padding:28px 0}.services-grid{grid-template-columns:1fr;gap:16px}.service-card{min-height:190px}.service-copy{padding:12px 12px 18px;min-height:190px}.service-card h3{font-size:20px;gap:10px}.service-card h3 svg{width:38px;height:38px}.service-card ul{font-size:13px;margin-top:8px;line-height:1.75}.service-photo{width:60%}.gallery-section{padding:28px 0}.gallery-heading{align-items:flex-start;gap:12px}.gallery-heading .section-heading p{font-size:12px}.gallery-heading h2{font-size:23px}.gallery-controls{gap:5px;padding-top:2px;flex-shrink:0}.gallery-controls button{width:34px;height:34px;font-size:18px}.gallery-slide{flex-basis:82%}.gallery-slide img{height:200px}.gallery-slide figcaption{font-size:12px}.contact-section{padding:28px 0}.contact-grid{display:block}.contact-grid h2{font-size:23px}.contact-grid>div>p{font-size:12px}.consultations{grid-template-columns:repeat(3,1fr);gap:8px;margin:20px 0}.consultations li{padding:12px 6px;font-size:11px;min-height:68px}.consultations svg{width:25px}.contact-action{text-align:left}.button-white{font-size:14px;padding:12px 22px}.contact-action p{padding-left:22px}.site-footer{padding:30px 0 18px}.footer-grid{grid-template-columns:1fr 1fr;gap:26px 20px}.footer-company{grid-column:1/-1}.footer-company address{font-size:12px}.footer-grid nav{padding-left:0;border-left:0;font-size:12px}.footer-info{display:block;grid-column:1/-1}.footer-info>a,.footer-info details{margin-top:7px}.privacy-note{margin-top:12px}.footer-bottom{margin-top:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.motion-enabled .reveal.pending{opacity:1;translate:none}}
@media print{.menu-toggle,.gallery-controls,.skip-link{display:none}.hero{height:350px}.reveal{opacity:1!important;translate:none!important}.gallery-track{overflow:visible}.site-footer{background:white;color:black}}

/* 元ロゴの配色は保持し、画像内の社名は表示範囲から外す。 */
.brand .logo-mark{display:block;width:44px;height:48px;overflow:hidden;flex-shrink:0}.brand .logo-mark img{width:78px;height:auto;max-width:none;margin-left:-18px}.brand .logo-mark+span{font-size:32px}@media(max-width:960px){.brand .logo-mark{width:39px;height:43px}.brand .logo-mark img{width:69px;margin-left:-16px}.brand .logo-mark+span{font-size:28px}}

.breadcrumb{font-size:12px;padding-block:10px;color:#596069}.breadcrumb a{text-decoration:underline;text-underline-offset:3px}.breadcrumb span{margin-left:8px}