.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid #e3ebf2;box-shadow:0 4px 18px rgba(7,43,79,.04);transition:box-shadow .2s ease}
.site-header.is-compact{box-shadow:0 9px 28px rgba(7,43,79,.09)}
.header-inner{min-height:128px;display:flex;align-items:center;justify-content:space-between;gap:48px;transition:min-height .2s ease}
.is-compact .header-inner{min-height:92px}
.brand{display:flex;align-items:center;flex:0 0 auto}
.brand img{display:block;width:214px;height:auto;max-height:104px;object-fit:contain;transition:width .2s ease}
.is-compact .brand img{width:184px}
.site-nav{display:flex;align-items:center;justify-content:flex-end;gap:38px;min-width:0;flex:1}
.nav-main{display:flex;align-items:center;justify-content:center;gap:38px;flex:1}
.nav-item{position:relative}
.nav-link{position:relative;display:inline-flex;align-items:center;gap:8px;min-height:54px;border:0;background:transparent;padding:0 1px;color:#082f5d;font:inherit;font-size:14px;font-weight:800;letter-spacing:.015em;white-space:nowrap;cursor:pointer;transition:color .16s ease}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;background:#075ec8;transform:scaleX(0);transform-origin:center;transition:transform .18s ease}
.nav-link:hover,.nav-link:focus-visible,.nav-item.is-current>.nav-link{color:#075ec8}
.nav-link:hover::after,.nav-link:focus-visible::after,.nav-item.is-current>.nav-link::after,.nav-item.is-open>.nav-link::after{transform:scaleX(1)}
.nav-item.is-open>.nav-link::before{content:"";position:absolute;left:50%;bottom:-17px;width:16px;height:16px;border-left:1px solid #dbe7f1;border-top:1px solid #dbe7f1;background:#fff;transform:translateX(-50%) rotate(45deg);z-index:3}
.nav-caret{width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .16s ease}
.nav-item.is-open .nav-caret{transform:rotate(225deg) translate(-1px,-1px)}
.nav-contact{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:64px;padding:0 24px;border:1px solid #d37a00;border-radius:10px;background:linear-gradient(135deg,#f4a20a,#e47600);color:#fff;font-size:14px;font-weight:850;white-space:nowrap;box-shadow:0 8px 18px rgba(183,105,0,.22);transition:transform .16s ease,box-shadow .16s ease,filter .16s ease}
.nav-contact:hover,.nav-contact:focus-visible{filter:brightness(1.04);box-shadow:0 11px 24px rgba(183,105,0,.28);transform:translateY(-1px)}
.nav-contact__mail{position:relative;width:20px;height:14px;border:2px solid currentColor;border-radius:2px;opacity:.96}
.nav-contact__mail::before,.nav-contact__mail::after{content:"";position:absolute;top:1px;width:10px;height:2px;background:currentColor}
.nav-contact__mail::before{left:1px;transform:rotate(35deg);transform-origin:left center}
.nav-contact__mail::after{right:1px;transform:rotate(-35deg);transform-origin:right center}
.nav-toggle{display:none;width:48px;height:48px;border:1px solid rgba(12,55,91,.12);border-radius:15px;background:#f7fbff;color:var(--color-navy);padding:0;place-items:center;box-shadow:0 7px 20px rgba(6,47,93,.08);cursor:pointer;transition:background-color .18s ease,box-shadow .18s ease,transform .18s ease}
.nav-toggle:hover,.nav-toggle:focus-visible{background:#eef7ff;box-shadow:0 10px 24px rgba(6,47,93,.12);transform:translateY(-1px)}
.nav-toggle__icon{display:grid;gap:4px;width:21px}
.nav-toggle__icon i{display:block;height:2px;border-radius:999px;background:currentColor;transform-origin:center;transition:transform .2s ease,opacity .16s ease,width .2s ease}
.nav-toggle__icon i:nth-child(1){width:21px}.nav-toggle__icon i:nth-child(2){width:15px;justify-self:end}.nav-toggle__icon i:nth-child(3){width:18px;justify-self:start}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon i:nth-child(1){width:21px;transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon i:nth-child(3){width:21px;transform:translateY(-6px) rotate(-45deg)}
.mobile-nav-head,.mobile-nav-foot,.nav-backdrop{display:none}

.mega-menu{position:fixed;left:0;right:0;top:var(--kshi-mega-top,0px);visibility:hidden;opacity:0;pointer-events:none;transform:translateY(-5px);background:transparent;border:0;transition:opacity .16s ease,transform .16s ease,visibility .16s ease}
.nav-item.is-open .mega-menu{visibility:visible;opacity:1;pointer-events:auto;transform:translateY(0)}
.mega-menu__inner{width:min(1300px,calc(100% - 72px));margin:10px auto 0;border:1px solid #dfe8f0;border-radius:12px;background:#fff;box-shadow:0 18px 42px rgba(6,47,93,.15);overflow:hidden}
.mega-menu__inner--solutions{display:grid;grid-template-columns:300px minmax(0,1fr);padding:28px 34px 30px}
.mega-menu__intro{padding:8px 30px 8px 6px;border-right:1px solid #e4ebf1}
.mega-menu__intro h2{margin:0 0 18px;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;color:#062f62;font-size:28px;line-height:1.3;letter-spacing:.025em}
.mega-menu__intro p{margin:0 0 32px;color:#314b67;font-size:13px;line-height:1.9}
.mega-menu__all{display:inline-flex;align-items:center;gap:12px;padding-bottom:6px;border-bottom:1px solid #88a7c7;color:#075ec8;font-size:12px;font-weight:850}
.mega-menu__groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));align-content:start;min-width:0}
.mega-solution-group{min-width:0;padding:2px 22px 0;border-right:1px solid #e4ebf1}
.mega-solution-group:last-child{border-right:0;padding-right:4px}
.mega-solution-group__head{display:flex;align-items:center;gap:11px;margin-bottom:15px}
.mega-solution-icon{position:relative;display:grid;place-items:center;width:42px;height:42px;flex:0 0 42px;background:#075ec8;color:#fff;clip-path:polygon(25% 6%,75% 6%,100% 50%,75% 94%,25% 94%,0 50%);filter:drop-shadow(0 4px 6px rgba(0,74,160,.16))}
.mega-solution-icon svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.mega-solution-group h3{margin:0;color:#082f5d;font-size:14px;line-height:1.35;font-weight:900}
.mega-solution-group ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.mega-solution-group li a{display:block;position:relative;padding-left:11px;color:#233f5e;font-size:11.5px;line-height:1.48}
.mega-solution-group li a::before{content:"・";position:absolute;left:0;top:0;color:#173b65}
.mega-solution-group li a:hover,.mega-solution-group li a:focus-visible{color:#075ec8}
.mega-solution-group__more{display:flex;justify-content:flex-end;gap:5px;margin-top:12px;color:#56708d;font-size:10.5px;font-weight:700}

.mega-menu__inner--context{display:grid;grid-template-columns:minmax(280px,340px) 1fr;padding:0}
.mega-context__intro{padding:30px 32px;border-right:1px solid #e4ebf1;background:#fbfdff}
.mega-menu__eyebrow{margin:0 0 7px;color:#075ec8;font-size:10px;font-weight:900;letter-spacing:.14em}
.mega-context__intro h2{margin:0 0 10px;color:#082f5d;font-size:23px;line-height:1.4}
.mega-context__intro p{margin:0 0 18px;color:#5f7488;font-size:12px;line-height:1.75}
.mega-context__features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:24px}
.mega-feature{position:relative;display:flex;min-height:124px;flex-direction:column;padding:15px 38px 14px 15px;border:1px solid #e5eef6;border-radius:10px;background:#fff;color:var(--color-ink);transition:border-color .18s ease,background-color .18s ease,transform .18s ease,box-shadow .18s ease}
.mega-feature:hover,.mega-feature:focus-visible{border-color:#bad4e9;background:#fbfdff;transform:translateY(-2px);box-shadow:0 9px 22px rgba(6,47,93,.07)}
.mega-feature>span{margin-bottom:6px;color:#075ec8;font-size:9px;font-weight:900;letter-spacing:.11em;text-transform:uppercase}.mega-feature>strong{display:block;margin-bottom:5px;color:#082f5d;font-size:13px;line-height:1.4}.mega-feature>small{display:block;color:#667d91;font-size:10.5px;line-height:1.55}.mega-feature>i{position:absolute;right:14px;top:14px;color:#7890a5;font-style:normal;font-size:13px}

@media(max-width:1260px) and (min-width:961px){
.header-inner{gap:24px}.brand img{width:178px}.site-nav{gap:22px}.nav-main{gap:19px}.nav-link{font-size:12px}.nav-contact{min-height:56px;padding:0 17px;font-size:12px}.mega-menu__inner{width:calc(100% - 40px)}.mega-menu__inner--solutions{grid-template-columns:250px minmax(0,1fr);padding:24px 20px}.mega-solution-group{padding:2px 15px}.mega-menu__intro{padding-right:20px}.mega-menu__intro h2{font-size:24px}
}

@media(max-width:960px){
.site-header{background:rgba(255,255,255,.99)}
.header-inner{min-height:70px;position:relative}.is-compact .header-inner{min-height:64px}.brand img{width:158px;max-height:58px}.is-compact .brand img{width:151px}
.nav-toggle{display:grid;position:relative;z-index:92}.site-nav{position:fixed;z-index:95;top:0;right:0;width:min(88vw,390px);height:100vh;height:100dvh;display:flex;flex-direction:column;align-items:stretch;gap:0;background:#fff;box-shadow:-24px 0 60px rgba(6,47,93,.18);visibility:hidden;pointer-events:none;transform:translate3d(102%,0,0);transition:transform .24s ease,visibility .24s ease;overflow:hidden;overscroll-behavior:contain}.site-nav.is-open{visibility:visible;pointer-events:auto;transform:translate3d(0,0,0)}
.mobile-nav-head{display:flex;align-items:center;justify-content:space-between;min-height:76px;padding:0 18px;border-bottom:1px solid var(--color-line);background:#fbfdff}.mobile-nav-head div{display:grid;gap:1px}.mobile-nav-head span{color:var(--color-blue);font-size:9px;font-weight:900;letter-spacing:.16em}.mobile-nav-head strong{color:var(--color-navy);font-size:15px}.mobile-nav-close{display:grid;place-items:center;width:42px;height:42px;border:1px solid #dce8f2;border-radius:13px;background:#fff;color:var(--color-navy);cursor:pointer}.mobile-nav-close span{position:relative;width:18px;height:18px}.mobile-nav-close span::before,.mobile-nav-close span::after{content:"";position:absolute;left:1px;top:8px;width:16px;height:2px;border-radius:2px;background:currentColor}.mobile-nav-close span::before{transform:rotate(45deg)}.mobile-nav-close span::after{transform:rotate(-45deg)}
.nav-main{display:block;flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;padding:6px 18px 18px;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}.nav-item{border-bottom:1px solid #edf3f8}.nav-link{width:100%;min-height:52px;justify-content:space-between;font-size:14px}.nav-link::after,.nav-item.is-open>.nav-link::before{display:none}.nav-caret{margin-right:3px}
.mega-menu{position:static;display:none;visibility:visible;opacity:1;pointer-events:auto;transform:none;border:0;background:#f7fafc;transition:none}.nav-item.is-open .mega-menu{display:block}.mega-menu__inner{width:100%;margin:0;border:0;border-radius:0;box-shadow:none}.mega-menu__inner--solutions{display:block;padding:14px 12px 18px}.mega-menu__intro{padding:0;border:0}.mega-menu__intro h2,.mega-menu__intro p{display:none}.mega-menu__all{margin:0 0 12px;font-size:12px}.mega-menu__groups{display:grid;grid-template-columns:1fr 1fr;gap:12px}.mega-solution-group{padding:12px;border:1px solid #e4edf5;border-radius:10px;background:#fff}.mega-solution-group:last-child{padding-right:12px}.mega-solution-group__head{margin-bottom:9px}.mega-solution-icon{width:34px;height:34px;flex-basis:34px}.mega-solution-icon svg{width:19px;height:19px}.mega-solution-group h3{font-size:12px}.mega-solution-group ul{gap:6px}.mega-solution-group li a{font-size:10.5px}.mega-solution-group__more{display:none}
.mega-menu__inner--context{display:block;padding:13px 12px 16px}.mega-context__intro{padding:0;border:0}.mega-context__intro h2,.mega-context__intro p,.mega-context__intro .mega-menu__eyebrow{display:none}.mega-context__features{grid-template-columns:1fr;gap:7px;padding:0}.mega-feature{min-height:0;padding:10px 34px 10px 11px;border-radius:10px;background:#fff}.mega-feature>span{margin-bottom:2px;font-size:8px}.mega-feature>strong{margin:0;font-size:12px}.mega-feature>small{display:none}.mega-feature>i{top:50%;transform:translateY(-50%)}
.mobile-nav-foot{display:grid;gap:9px;padding:14px 18px calc(16px + env(safe-area-inset-bottom));border-top:1px solid var(--color-line);background:#f8fbfe}.mobile-nav-foot p{margin:0;color:#61788c;font-size:10.5px;line-height:1.5}.mobile-nav-foot .nav-contact{width:100%;min-height:48px;border-radius:12px}.mobile-nav-audit{display:block;text-align:center;color:var(--color-navy);font-size:11px;font-weight:800}.nav-contact--desktop{display:none}.nav-backdrop{display:block;position:fixed;z-index:90;inset:0;border:0;background:rgba(7,27,45,.48);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .22s ease,visibility .22s ease}.nav-backdrop.is-visible{opacity:1;visibility:visible;pointer-events:auto}body.menu-open{overflow:hidden;touch-action:none}
}
@media(max-width:600px){.header-inner{min-height:66px}.brand img{width:146px}.nav-toggle{width:45px;height:45px;border-radius:14px}.site-nav{width:min(92vw,370px)}.mega-menu__groups{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.site-header,.header-inner,.brand img,.nav-link::after,.nav-caret,.nav-contact,.mega-menu,.nav-toggle,.nav-toggle__icon i,.site-nav,.nav-backdrop,.mega-feature{transition:none}}

.mega-menu__groups-label{grid-column:1/-1;margin:0 22px 14px;font-size:.72rem;font-weight:800;letter-spacing:.12em;color:#64748b;text-transform:uppercase}