@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&family=Noto+Sans+JP:wght@400;500;600;700&display=swap');
:root{--black:#08090b;--white:#f4f4f1;--line:rgba(255,255,255,.24);--silver:#b8bbc3}*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--black);color:var(--white);font-family:'DM Sans','Noto Sans JP',sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer}h1,h2,h3,p{margin-top:0}img{max-width:100%;height:auto}.container{width:min(100% - 9vw,1440px);margin-inline:auto}.section-title__en{font-size:11px;font-weight:700;letter-spacing:.2em}.site-header{position:absolute;top:0;left:0;width:100%;z-index:50}.header--inner{height:105px;display:flex;align-items:center;justify-content:space-between}.header-logo{font-size:19px;font-weight:800;letter-spacing:-.07em;line-height:.85;display:flex;flex-direction:column}.header-logo span{letter-spacing:-.06em}.header-logo i{font-size:9px;font-style:normal;position:absolute;margin-left:137px}.header-nav{display:flex;align-items:center;gap:35px;font-size:11px;font-weight:700;letter-spacing:.13em}.header-nav a{transition:opacity .3s}.header-nav a:hover{opacity:.5}.header-nav a:last-child{border:1px solid #777;padding:15px 18px}.header-nav a span{margin-left:24px}.header-menu{display:none;background:none;border:0;color:#fff}.site-footer{background:#07080a;border-top:1px solid #34363b;padding:60px 0 35px}.footer-logo{font-size:clamp(30px,6vw,85px);font-weight:800;letter-spacing:-.07em;white-space:nowrap}.footer-logo span{font-size:12px;vertical-align:top}.footer-bottom{border-top:1px solid #333;padding-top:25px;margin-top:55px;display:flex;justify-content:space-between;gap:20px;font-size:11px;color:#aaa}.page-hero{min-height:630px;padding-top:210px;padding-bottom:110px}.page-hero h1{font-size:clamp(65px,11vw,175px);line-height:.89;letter-spacing:-.085em;margin:70px 0 45px;overflow-wrap:anywhere}.page-hero h1 em{font-style:normal;color:#a7aab2}.page-hero>p:last-of-type{font-size:17px}.page-section{padding:135px 0;background:#0e0f12}.page-section--light{background:var(--white);color:#111}.page-grid{display:grid;grid-template-columns:1fr 2fr;gap:70px}.page-grid h2{font-size:clamp(35px,5vw,80px);letter-spacing:-.05em}.page-grid p{line-height:2.2}.company-list{margin-top:55px}.company-list>div{display:grid;grid-template-columns:140px 1fr;gap:20px;padding:25px 0;border-bottom:1px solid #bbb}.company-list dt{font-size:13px;font-weight:700}.company-list dd{margin:0;line-height:1.9}.service-detail{display:grid;grid-template-columns:90px 1fr;gap:30px;border-bottom:1px solid #bbb;padding:55px 0}.service-detail:first-of-type{margin-top:55px;border-top:1px solid #bbb}.service-detail h2{font-size:clamp(30px,4vw,60px);letter-spacing:-.05em}.service-detail h3{font-size:17px}.service-detail p{line-height:2;max-width:650px}.contact-form{display:grid;gap:32px}.contact-form label{display:block;font-size:12px;font-weight:700;letter-spacing:.12em}.contact-form label span{color:#777}.contact-form input,.contact-form textarea{display:block;margin-top:13px;width:100%;border:0;border-bottom:1px solid #999;background:transparent;border-radius:0;padding:14px 0;outline-offset:4px;color:#111;font-size:16px}.contact-form button{display:flex;justify-content:space-between;border:0;border-bottom:1px solid #111;background:transparent;padding:20px 0;font-weight:800;letter-spacing:.12em}.form-honeypot{position:absolute;left:-9999px}.form-message{padding:15px 0}.article-title{font-size:clamp(35px,7vw,100px)!important;line-height:1.2!important;letter-spacing:-.04em!important}.article-date{font-size:13px}.article-body{max-width:900px;line-height:2.1}.article-body img{height:auto}.common-text-link{font-size:12px;letter-spacing:.15em;font-weight:700}.accent{color:#bfc1c8}.news__list{border-top:1px solid #aaa}.news__item{display:grid;grid-template-columns:160px 1fr 40px;align-items:center;gap:20px;border-bottom:1px solid #aaa;padding:32px 0;transition:padding .3s}.news__item:hover{padding-left:15px}.news__item time{font-size:12px}.news__item h2,.news__item h3{font-size:16px;font-weight:500;margin:0}.news__item>span{text-align:right}@media(max-width:850px){.header--inner{height:82px}.header-menu{display:flex;align-items:center;gap:15px;z-index:2;font-size:11px;letter-spacing:.1em}.header-menu__lines{display:grid;gap:6px}.header-menu__lines i{width:25px;height:1px;background:#fff;display:block}.header-nav{position:absolute;top:0;left:0;right:0;background:#111;min-height:100svh;padding:130px 7vw 70px;display:none;flex-direction:column;align-items:stretch;gap:30px;font-size:20px}.header-nav.is-open{display:flex}.header-nav a:last-child{align-self:flex-start}.container{width:calc(100% - 40px)}.page-hero{min-height:490px;padding-top:160px;padding-bottom:80px}.page-hero h1{margin:65px 0 35px}.page-section{padding:85px 0}.page-grid{grid-template-columns:1fr;gap:35px}.footer-bottom{flex-wrap:wrap}.service-detail{grid-template-columns:45px 1fr;gap:10px}.news__item{grid-template-columns:1fr 25px;gap:10px}.news__item time{grid-column:1/-1}.footer-logo{white-space:normal}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}
/* Japanese navigation labels */
.header-nav{letter-spacing:.06em}

/* Deep cobalt design system / readable header on light hero */
:root{--ni-blue:#155EEF;--ni-blue-hover:#073A9E}
.site-header{color:#171b24}
.site-header .header-logo,.site-header .header-nav a,.site-header .header-menu{color:inherit}
.site-header .header-nav a:last-child{background:var(--ni-blue);color:#fff;border-color:var(--ni-blue);border-radius:2px}
.site-header .header-menu__lines i{background:currentColor}
body:not(.home) .site-header{color:#fff}
body:not(.home) .site-header .header-nav a:last-child{color:#fff}
@media(max-width:850px){.site-header .header-nav{background:#f4f5f8;color:#151d2b;box-shadow:0 20px 40px rgba(0,0,0,.1)}.site-header .header-nav a{color:#151d2b}.site-header .header-nav a:last-child{color:#fff}.site-header .header-menu{position:relative;z-index:55}.site-header:has(.header-nav.is-open) .header-menu{color:#151d2b}body:not(.home) .site-header:has(.header-nav.is-open) .header-menu{color:#151d2b}}
/* Button arrow: slide out and return, accessible focus state */
.header-nav a:last-child span,.common-button__arrow,.service__arrow,.contact-cta__link span:last-child,.contact-form button span:last-child,.news__item>span{display:inline-block;transition:transform .55s cubic-bezier(.22,1,.36,1),color .4s ease;will-change:transform}
@media(hover:hover){.header-nav a:last-child:hover span,.header-nav a:last-child:focus-visible span,.common-button:hover .common-button__arrow,.common-button:focus-visible .common-button__arrow,.service__item:hover .service__arrow,.service__item:focus-visible .service__arrow,.contact-cta__link:hover span:last-child,.contact-cta__link:focus-visible span:last-child,.contact-form button:hover span:last-child,.news__item:hover>span{transform:translate(8px,-8px)}.header-nav a:last-child:hover{background:var(--ni-blue-hover);opacity:1}.common-button:hover,.common-text-link:hover{color:var(--ni-blue)}.service__item:hover h3{color:var(--ni-blue)}}
:focus-visible{outline:2px solid var(--ni-blue);outline-offset:5px}
@media(prefers-reduced-motion:reduce){.header-nav a:last-child span,.common-button__arrow,.service__arrow,.contact-cta__link span:last-child,.news__item>span{transition:none;will-change:auto}}


/* Dark hero header visibility, including mobile navigation */
.site-header{color:#f5f7fb}
.site-header .header-logo,.site-header .header-menu{color:#f5f7fb}
.site-header .header-menu__lines i{background:#f5f7fb}
.site-header .header-nav a:not(:last-child){color:#f5f7fb}
.site-header .header-nav a:last-child{background:#155EEF;color:#fff;border-color:#155EEF}
@media(max-width:850px){.site-header .header-nav{background:#0b1020}.site-header .header-nav a:not(:last-child){color:#fff}}

/* Next Innovation accent — Aqua Mint */
:root{--ni-blue:#155EEF;--ni-blue-hover:#073A9E;--ni-accent:#155EEF}

.site-header .header-nav a:last-child{background:var(--ni-accent);color:#071413;border-color:var(--ni-accent)}
.site-header .header-nav a:last-child:hover{background:#4F8EFF;border-color:#4F8EFF;color:#071413}
.header-nav a:focus-visible,.common-button:focus-visible,.common-text-link:focus-visible{outline:2px solid var(--ni-accent);outline-offset:5px}

/* Slate-blue buttons on dark header; punctuation remains neutral */
:root{--ni-blue:#155EEF;--ni-blue-hover:#073A9E;--ni-accent:#155EEF}
.site-header .header-nav a:last-child{background:var(--ni-accent);border-color:var(--ni-accent);color:#101820}
.site-header .header-nav a:last-child:hover{background:#4F8EFF;border-color:#4F8EFF;color:#101820}

/* Footer closes the page-wide gradient on a light surface. */
body.home .site-footer{background:#fafaf8;color:#151b23;border-top:1px solid #d5d8dc}
body.home .footer-bottom{border-top-color:#d5d8dc;color:#59616d}

/* Vivid orange accent: leave the global black-to-white background untouched. */
:root{--ni-accent:#155EEF;--ni-accent-light:#4F8EFF;--ni-accent-dark:#073A9E;--ni-accent-gradient:linear-gradient(125deg,var(--ni-accent-light) 0%,var(--ni-accent) 48%,var(--ni-accent-dark) 100%)}
.site-header .header-nav a:last-child{background:var(--ni-accent-gradient);border-color:var(--ni-accent);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.23),0 5px 16px rgba(182,60,10,.18)}
.site-header .header-nav a:last-child:hover{background:linear-gradient(125deg,#4F8EFF 0%,#155EEF 72%,#073A9E 100%);border-color:var(--ni-accent-dark);color:#fff}
::selection{background:#155EEF;color:#fff}

/* Kinetic editorial accent: background and loading remain unchanged. */
:root{--ni-blue:#ff6b45;--ni-blue-hover:#cb3f49;--ni-accent:#ff6b45;--ni-accent-light:#ffad79;--ni-accent-dark:#cb3f49;--ni-accent-gradient:linear-gradient(120deg,#ffad79,#ff6b45 54%,#cb3f49)}
.site-header .header-nav a:last-child{background:var(--ni-accent-gradient);border-color:var(--ni-accent);color:#101114;box-shadow:0 8px 30px rgba(255,107,69,.18)}
.site-header .header-nav a:last-child:hover{background:linear-gradient(120deg,#ffc39d,#ff6b45 60%,#cb3f49);color:#101114}
:focus-visible{outline-color:var(--ni-accent)}

/* Consistent vivid orange; white contact button label and arrow. */
:root{--ni-blue:#F36A21;--ni-blue-hover:#B63C0A;--ni-accent:#F36A21;--ni-accent-light:#FFAA62;--ni-accent-dark:#B63C0A;--ni-accent-gradient:linear-gradient(120deg,#FFAA62,#F36A21 55%,#B63C0A)}
.site-header .header-nav a:last-child,.site-header .header-nav a:last-child:hover,.site-header .header-nav a:last-child:focus-visible{color:#fff!important;border-color:#F36A21;background:var(--ni-accent-gradient)}
.site-header .header-nav a:last-child span{color:#fff!important}
::selection{background:#F36A21;color:#fff}

/* Header contact CTA: equal optical top/bottom spacing */
@media (min-width: 851px) {
  .site-header .header-nav a:last-child {
    display: inline-flex; align-items: center; justify-content: center; gap: 20px;
    min-height: 48px; height: 48px; padding: 0 18px !important;
    line-height: 1 !important; white-space: nowrap; vertical-align: middle;
  }
  .site-header .header-nav a:last-child span {
    display: inline-flex; align-items: center; justify-content: center;
    height: 24px; line-height: 1 !important; margin-left: 0 !important;
  }
}