:root{--blue:#004aad;--blue-dark:#003b89;--green:#599606;--lime:#bcf29f;--orange:#ff751f;--ink:#172033;--muted:#5b6471;--line:#dce4eb;--soft:#f5f5f5;--white:#fff;--section-gap:80px;--content:1180px;--radius:7px;--shadow:0 18px 50px rgba(18,48,83,.1)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:"Noto Sans JP","Yu Gothic",YuGothic,Meiryo,sans-serif;font-size:16px;line-height:1.7;letter-spacing:.015em}body.menu-open{overflow:hidden}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a{touch-action:manipulation}.container{width:min(var(--content),calc(100% - 48px));margin-inline:auto}.skip-link{position:fixed;left:18px;top:-80px;z-index:200;background:var(--ink);color:#fff;padding:10px 18px;border-radius:0 0 6px 6px}.skip-link:focus{top:0}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(0,74,173,.12);backdrop-filter:blur(12px)}.header-inner{height:78px;display:flex;align-items:center;gap:36px}.brand{display:flex;align-items:center;gap:12px;white-space:nowrap;font-weight:700;letter-spacing:.025em}.brand-logo{width:47px;height:34px;object-fit:contain}.global-nav{margin-left:auto}.global-nav ul{display:flex;align-items:center;gap:29px;margin:0;padding:0;list-style:none}.global-nav a{position:relative;font-size:12px;font-weight:700;letter-spacing:.08em}.global-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:-8px;height:2px;background:var(--blue);transition:right .25s ease}.global-nav a:hover::after,.global-nav a:focus-visible::after,.global-nav a[aria-current="page"]::after{right:0}.header-cta{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 19px;background:var(--blue);color:#fff;font-size:12px;font-weight:700;border-radius:5px}.menu-toggle{display:none;margin-left:auto;width:44px;height:44px;border:0;background:transparent;position:relative}.menu-toggle span{position:absolute;left:9px;width:26px;height:2px;background:var(--ink);transition:transform .28s ease,top .28s ease,opacity .2s}.menu-toggle span:nth-child(1){top:13px}.menu-toggle span:nth-child(2){top:21px}.menu-toggle span:nth-child(3){top:29px}.menu-toggle[aria-expanded="true"] span:nth-child(1){top:21px;transform:rotate(45deg)}.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}.menu-toggle[aria-expanded="true"] span:nth-child(3){top:21px;transform:rotate(-45deg)}
.hero{min-height:650px;display:flex;align-items:center;background:linear-gradient(90deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.74) 38%,rgba(255,255,255,0) 67%),url("../assets/images/hero.png") center/cover no-repeat}.hero-copy{padding-block:76px;max-width:660px}.eyebrow{margin:0 0 15px;color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.16em}.hero h1{margin:0;font-size:clamp(36px,4.3vw,62px);line-height:1.35;letter-spacing:.045em;font-weight:700}.hero-lead{margin:27px 0 0;font-weight:700;line-height:1.85}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:51px;padding:0 31px;border:1px solid transparent;border-radius:5px;color:#fff;font-weight:700;transition:transform .2s ease,filter .2s ease,box-shadow .2s ease}.btn:hover,.btn:focus-visible{transform:translateY(-3px);filter:brightness(1.04);box-shadow:0 10px 24px rgba(0,0,0,.14)}.btn-orange{margin-top:39px;background:var(--orange)}.btn-blue{background:#00439f}.btn-green{background:var(--green)}.btn-outline{color:var(--blue);border-color:var(--blue);background:#fff}.intro{padding:52px 24px;text-align:center;color:var(--blue);font-size:clamp(18px,2vw,24px);font-weight:700}.section{padding-block:var(--section-gap)}.section-soft{background:var(--soft)}.section-heading{text-align:center;margin-bottom:52px}.section-heading h2{margin:0;font-size:clamp(28px,3vw,41px);line-height:1.35;font-weight:700}.section-heading p{margin:8px 0 0;color:var(--blue);font-family:Georgia,"Times New Roman",serif;font-size:15px;letter-spacing:.14em}.concept-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:center;gap:8vw}.concept-visual{position:relative}.concept-visual img:first-child{aspect-ratio:1.45/1;object-fit:cover}.concept-copy h3{font-size:clamp(25px,3vw,38px);line-height:1.45;margin:0 0 20px}.concept-copy h3::after{content:"";display:block;width:100%;height:2px;margin-top:15px;background:var(--lime)}.concept-copy p{color:var(--muted)}.keywords{margin:28px 0 0!important;color:var(--blue)!important;font:700 clamp(35px,4vw,53px)/1.08 "Times New Roman",Times,serif}.town-line{margin-top:10px;width:100%;height:92px;object-fit:contain;object-position:center bottom}.service-stack{display:grid;gap:44px}.service-item{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:6vw}.service-item:nth-child(even) .service-image{order:2}.service-image{width:100%;aspect-ratio:1.55/1;object-fit:cover}.service-copy{padding-inline:15px}.service-copy h3{font-size:clamp(24px,2.6vw,35px);margin:0 0 17px}.service-copy h3::after{content:"";display:block;width:44px;height:3px;margin-top:13px;background:var(--lime)}.service-copy p{color:var(--muted)}.text-link{display:inline-flex;margin-top:13px;color:var(--blue);font-weight:700}.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.work-card{background:#fff;box-shadow:var(--shadow);border-radius:var(--radius);overflow:hidden}.work-card img{width:100%;aspect-ratio:1.6/1;object-fit:cover}.work-card-body{padding:22px}.work-card h3{font-size:20px;line-height:1.5;margin:0 0 12px}.work-card p{margin:0;color:var(--muted);font-size:14px}.section-actions{text-align:center;margin-top:37px}.timeline{position:relative;max-width:1000px;margin:auto;display:grid;gap:18px}.timeline::before{content:"";position:absolute;left:20px;top:15px;bottom:15px;width:2px;background:var(--blue)}.timeline-item{position:relative;margin-left:62px;padding:23px 27px;border:1px solid rgba(0,74,173,.35);border-radius:var(--radius);background:#fff}.timeline-item::before{content:"";position:absolute;left:-49px;top:27px;width:12px;height:12px;border:3px solid var(--blue);background:var(--lime);border-radius:50%}.timeline-item h3{margin:0 0 8px;color:var(--blue);font-size:19px}.timeline-item p{margin:0;color:var(--muted);font-size:14px}.company-layout{display:grid;grid-template-columns:38% 1fr;gap:54px;align-items:stretch}.company-image{width:100%;height:100%;min-height:370px;object-fit:cover}.company-table{width:100%;border-collapse:collapse;background:#fff}.company-table th,.company-table td{border-bottom:1px solid var(--line);padding:12px 15px;text-align:left;vertical-align:top}.company-table th{width:130px;background:#f2f6fa;font-weight:700}.contact-band{text-align:center;background:linear-gradient(135deg,#f0f7ff,#fff)}.contact-actions{display:flex;justify-content:center;gap:34px;margin-top:35px}.page-hero{padding:93px 0 72px;background:linear-gradient(135deg,#eff6ff,#fff 56%,#f1ffe1)}.page-hero h1{margin:0;font-size:clamp(38px,5vw,68px);line-height:1.25}.page-hero p{max-width:720px;margin:20px 0 0;color:var(--muted)}.breadcrumb{margin-bottom:25px;color:var(--blue);font-size:13px}.content-grid{display:grid;grid-template-columns:280px 1fr;gap:65px}.side-index{position:sticky;top:108px;align-self:start;padding:24px;border-left:3px solid var(--lime);background:var(--soft)}.side-index ul{margin:0;padding:0;list-style:none}.side-index li+li{margin-top:12px}.side-index a{color:var(--blue);font-weight:700}.prose{max-width:820px}.prose h2{margin:0 0 24px;font-size:32px}.prose h3{margin:42px 0 12px;font-size:23px}.prose p,.prose li{color:var(--muted)}.prose section+section{margin-top:80px}.detail-card{padding:30px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}.detail-card+ .detail-card{margin-top:28px}.contact-form{max-width:860px;margin:auto}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.field{display:grid;gap:8px}.field-full{grid-column:1/-1}.field label{font-weight:700}.required{color:#b72b22;font-size:12px}.field input,.field select,.field textarea{width:100%;border:1px solid #aeb9c5;border-radius:4px;background:#fff;padding:13px 14px;color:var(--ink)}.field textarea{min-height:190px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{outline:3px solid rgba(0,74,173,.2);border-color:var(--blue)}.field-error{min-height:1.2em;margin:0;color:#b72b22;font-size:13px}.checkbox-row{display:flex;align-items:flex-start;gap:10px}.checkbox-row input{margin-top:7px}.form-status{display:none;margin-top:22px;padding:18px;border-left:4px solid var(--green);background:#eefbdc;font-weight:700}.form-status.is-visible{display:block}.site-footer{padding:48px 0 30px;border-top:1px solid var(--line);background:#fff}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:50px}.footer-brand{margin-bottom:17px}.footer-address{font-size:13px;color:var(--muted)}.footer-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px}.footer-nav a,.footer-policy a{font-size:13px}.footer-policy{display:grid;align-content:start;gap:10px}.copyright{text-align:center;margin:38px 0 0;font-size:11px;color:var(--muted)}.reveal{opacity:0;transform:translateY(28px);transition:opacity .75s cubic-bezier(.2,.65,.25,1),transform .75s cubic-bezier(.2,.65,.25,1)}.reveal.is-visible{opacity:1;transform:none}
@media(max-width:768px){:root{--section-gap:64px}.container{width:min(100% - 32px,var(--content))}.header-inner{height:68px}.brand{font-size:14px}.brand-logo{width:42px}.header-cta{display:none}.menu-toggle{display:block}.global-nav{position:fixed;inset:68px 0 auto 0;margin:0;padding:12px 18px 24px;background:#fff;border-bottom:1px solid var(--line);transform:translateY(-125%);opacity:0;visibility:hidden;transition:transform .32s ease,opacity .25s ease,visibility .32s;box-shadow:0 18px 30px rgba(18,48,83,.12)}.global-nav.is-open{transform:none;opacity:1;visibility:visible}.global-nav ul{display:grid;gap:0}.global-nav a{display:block;padding:15px 9px;font-size:14px;border-bottom:1px solid var(--line)}.hero{min-height:690px;align-items:flex-end;background:linear-gradient(180deg,rgba(255,255,255,.1),rgba(255,255,255,.95) 65%),url("../assets/images/hero.png") 65% center/cover no-repeat}.hero-copy{padding-block:60px}.hero h1{font-size:32px}.hero-lead{font-size:14px}.intro{font-size:17px}.concept-grid,.service-item,.company-layout,.content-grid{grid-template-columns:1fr}.concept-grid{gap:38px}.keywords{font-size:39px}.service-stack{gap:55px}.service-item{gap:25px}.service-item:nth-child(even) .service-image{order:0}.works-grid{grid-template-columns:1fr}.work-card img{aspect-ratio:1.75/1}.timeline-item{margin-left:45px;padding:20px}.timeline::before{left:11px}.timeline-item::before{left:-41px}.company-image{min-height:240px}.company-table th{width:95px}.contact-actions{flex-direction:column;align-items:stretch;gap:14px}.contact-actions .btn{width:100%}.footer-grid{grid-template-columns:1fr;gap:30px}.footer-nav{grid-template-columns:repeat(2,1fr)}.side-index{position:static}.form-grid{grid-template-columns:1fr}.field-full{grid-column:auto}.page-hero{padding:70px 0 55px}.page-hero h1{font-size:42px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.global-nav,.menu-toggle span,.btn{transition:none}}