@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&family=Noto+Sans+JP:wght@400;500;600;700&family=Noto+Serif+JP:wght@400;500;600&display=swap');
:root{--paper:#f5f7f9;--ink:#15283d;--muted:#596875;--line:#d6dde3;--accent:#175b83;--surface:#fff;--dark:#101f32;--gutter:clamp(24px,5.5vw,88px);--sans:'DM Sans','Noto Sans JP',sans-serif;--serif:'Noto Serif JP','Yu Mincho',serif;--display:'Manrope','Noto Sans JP',sans-serif;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:500}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit}img{max-width:100%;display:block}::selection{background:#9dded7;color:#112a30}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:6px}button{cursor:pointer}a:hover .arrow{transform:translate(4px,-2px)}.arrow{display:inline-block;transition:transform .2s;font-family:var(--sans)}.skip{position:fixed;top:-100px;left:20px;z-index:200;padding:12px;background:var(--surface)}.skip:focus{top:10px}.shell{width:100%;max-width:1600px;margin:auto;padding:0 var(--gutter)}.eyebrow{font-family:var(--display);font-size:12px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;display:flex;align-items:center;gap:16px}.eyebrow:before{content:'';height:5px;width:5px;background:currentColor}.section-label{font-family:var(--display);font-size:14px;letter-spacing:.04em;display:flex;gap:30px;align-items:baseline}.section-label .num{font-size:12px;opacity:.65}.section{padding:112px 0;border-bottom:1px solid var(--line);scroll-margin-top:0}.section-title{font-size:clamp(32px,3.4vw,50px);letter-spacing:.02em;line-height:1.6}.section-top{display:flex;justify-content:space-between;gap:40px;align-items:flex-end;margin-bottom:54px}.section-top .section-title{margin-top:16px}.subtle{color:var(--muted)}.text-link{display:inline-flex;align-items:center;gap:40px;border-bottom:1px solid currentColor;padding:12px 0;font-size:14px}.primary{padding:18px 26px;min-height:58px;display:inline-flex;align-items:center;justify-content:space-between;gap:48px;background:var(--ink);color:var(--paper);font-size:14px;border:1px solid var(--ink);transition:background .2s,color .2s}.primary:hover{background:var(--accent);color:#fff}.secondary{padding:18px 0;display:inline-flex;gap:24px;align-items:center;font-size:14px}.design-nav{height:36px;padding:0 var(--gutter);display:flex;align-items:center;justify-content:space-between;background:#e8edf1;color:#34414d;font-size:12px;letter-spacing:.04em;border-bottom:1px solid #d4dce3}.design-nav nav{display:flex;height:100%;align-items:center;gap:4px}.design-nav nav a{padding:3px 12px;font-size:12px}.design-nav a[aria-current=page]{background:#fff;color:#142637}.design-nav .compare{font-size:12px}.header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--paper) 94%,transparent);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.header-inner{min-height:88px;display:flex;gap:32px;align-items:center;justify-content:space-between}.brand img{width:135px;height:auto}.navigation{display:flex;gap:26px;align-items:center;margin-left:auto}.navigation a{font-size:14px;white-space:nowrap}.navigation a:hover{color:var(--accent)}.header-cta{background:var(--ink);color:var(--paper);padding:12px 20px;font-size:14px;display:flex;gap:30px;align-items:center}.menu-toggle{display:none;background:none;border:1px solid var(--line);padding:8px 13px;font-size:14px}.hero{position:relative;isolation:isolate;overflow:hidden}.hero h1{font-size:clamp(44px,5.5vw,82px);line-height:1.5;letter-spacing:.01em}.hero-intro{font-size:17px;line-height:2.1;max-width:35em}.hero-actions{display:flex;align-items:center;gap:36px;margin-top:35px;flex-wrap:wrap}.hero-meta{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #ffffff30;padding:24px 0;font-size:12px;letter-spacing:.06em}.hero-image{object-fit:cover;width:100%;height:100%}.a .hero{background:#0b1b2d;color:#fff;min-height:704px}.a .hero-visual{position:absolute;inset:0 0 0 29%;z-index:-2;background:linear-gradient(135deg,#234463,#0a1a2d)}.a .hero-visual:after{position:absolute;content:'';inset:0;background:linear-gradient(90deg,#0b1b2d 0%,#0b1b2dbb 18%,transparent 72%)}.a .hero-inner{padding-top:84px;padding-bottom:67px;min-height:616px}.a .hero .eyebrow{color:#a4bed2}.a .hero h1{font-family:var(--serif);margin:30px 0 22px;max-width:12em}.a .hero h1 span{color:#bcd7e9}.a .hero-intro{max-width:31em;color:#d3dce6;font-size:16px}.a .hero .primary{background:#f3f7fa;color:#112e47;border-color:#f3f7fa}.a .hero .primary:hover{background:#c7e5f3}.a .hero .secondary{color:#e4edf5}.hero-bottom{position:relative}.mission-layout{display:grid;grid-template-columns:1fr 2.1fr;gap:70px}.mission-content h2{font-size:clamp(32px,3.1vw,48px);line-height:1.65;margin-bottom:35px;letter-spacing:.03em}.mission-copy{display:grid;grid-template-columns:1fr 1fr;gap:38px;color:var(--muted);font-size:16px;line-height:2.2}.mission-sign{font-family:var(--display);font-size:14px;margin-top:38px;letter-spacing:.07em}.services{background:var(--surface)}.service-intro{font-size:14px;color:var(--muted)}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line)}.service-card{padding:36px 30px 32px;display:flex;flex-direction:column;position:relative;min-width:0}.service-card+.service-card{border-left:1px solid var(--line)}.service-no{display:flex;justify-content:space-between;align-items:center;font-family:var(--display);font-size:36px;font-weight:400;margin-bottom:50px}.service-icon{width:44px;height:44px;color:var(--accent)}.service-en{font-size:12px;letter-spacing:.1em;font-family:var(--display);color:var(--muted);margin-bottom:10px;text-transform:uppercase}.service-card h3{font-size:24px;line-height:1.6;letter-spacing:.01em;margin-bottom:20px;min-height:77px}.service-card .description{font-size:16px;color:var(--muted);line-height:2;flex:1}.service-list{list-style:none;padding:24px 0 0;margin:25px 0 0;border-top:1px solid var(--line);font-size:14px}.service-list li{position:relative;padding-left:18px;margin:8px 0}.service-list li:before{content:'—';position:absolute;left:0;color:var(--accent)}.service-card .service-link{font-size:14px;display:flex;align-items:center;justify-content:space-between;margin-top:30px;padding-top:16px;border-top:1px solid var(--line)}.value-chain{display:grid;grid-template-columns:1fr 2fr;margin-top:42px;align-items:start;gap:32px}.value-chain>p{font-size:14px;font-weight:500}.chain{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;list-style:none;padding:0;margin:0}.chain li{border-top:2px solid var(--accent);padding-top:14px;position:relative}.chain strong{display:block;font-family:var(--display);font-weight:500;font-size:16px}.chain span{font-size:14px;color:var(--muted)}.member-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.member-card{border-top:1px solid var(--ink);padding:32px 0;display:flex;gap:22px;align-items:flex-start}.member-initial{font-family:var(--display);color:var(--accent);font-size:30px;line-height:1.2;padding-top:4px}.member-name{font-size:24px;font-weight:500;letter-spacing:.07em}.member-en{font-size:12px;color:var(--muted);letter-spacing:.1em;margin-top:6px}.member-role{font-size:14px;margin-top:20px}.split{display:grid;grid-template-columns:1fr 2.1fr;gap:70px}.split .section-title{margin-top:16px}.data-table{width:100%;border-collapse:collapse;text-align:left;font-size:16px}.data-table thead{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.data-table th{font-weight:500}.data-table td,.data-table th{padding:23px 0;border-bottom:1px solid var(--line);vertical-align:top}.data-table td:first-child{width:30%;padding-right:30px}.table-note{font-size:12px;color:var(--muted);margin-top:20px}.news-item{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 0;display:grid;grid-template-columns:100px 90px 1fr 22px;gap:20px;align-items:center}.news-date,.news-cat{font-size:12px;color:var(--muted)}.news-title{font-size:16px}.news-cat{border:1px solid var(--line);padding:2px 8px;text-align:center}.news-item:hover .news-title{color:var(--accent)}.news-more{margin-top:25px;text-align:right}.company-list{margin:0}.company-list>div{display:grid;grid-template-columns:120px 1fr;gap:24px;padding:20px 0;border-bottom:1px solid var(--line);font-size:16px}.company-list dt{color:var(--muted);font-size:14px}.company-list dd{margin:0}.contact{background:var(--dark);color:#f5f8fb;padding:92px 0 88px;position:relative;overflow:hidden}.contact-layout{display:flex;justify-content:space-between;align-items:flex-end;gap:45px}.contact h2{font-size:clamp(32px,3.7vw,54px);line-height:1.65;margin:26px 0 16px}.contact p{font-size:16px;color:#c5d2dc}.contact .primary{background:#fff;color:#12253a;border-color:#fff;flex-shrink:0}.contact .primary:hover{background:#c7e5f3}.contact-email{display:block;font-size:12px;letter-spacing:.08em;color:#c5d2dc;margin-top:16px}.footer{padding:42px 0;background:var(--paper)}.footer-inner{display:flex;justify-content:space-between;gap:24px;align-items:center}.footer img{width:118px}.footer p,.footer a{font-size:12px;color:var(--muted)}.footer-right{display:flex;gap:34px;align-items:center}
/* B: editorial whitespace, green rulework, asymmetrical typography. */
.b{--paper:#fcfcf9;--surface:#f1f4ef;--ink:#153b2e;--muted:#54665b;--line:#ccd5cc;--accent:#287b51;--dark:#113d2d}.b .header-inner{min-height:96px}.b .hero .shell{padding-top:62px}.b .hero-kicker{display:flex;justify-content:space-between;align-items:center;margin-bottom:35px}.b .hero h1{font-family:var(--serif);font-size:clamp(50px,6.5vw,96px);line-height:1.5;letter-spacing:-.04em}.b .hero h1 .offset{display:block;margin-left:18%}.b .hero-title-row{position:relative;z-index:1}.b .hero-statement{position:absolute;right:0;top:15px;font-size:12px;font-family:var(--display);letter-spacing:.09em;max-width:150px;line-height:1.8}.b .hero-lower{display:grid;grid-template-columns:1.12fr 1fr;gap:8%;align-items:center;margin-top:42px;padding-bottom:60px}.b .hero-visual{height:300px;position:relative;overflow:hidden;background:#dbe2d9}.b .hero-image{object-position:50% 53%}.b .hero-intro{font-size:16px;max-width:31em}.b .hero-actions{margin-top:28px}.b .hero .primary{background:transparent;color:var(--ink);min-width:255px}.b .hero .primary:hover{background:var(--ink);color:#fff}.b .hero-meta{border-top:1px solid var(--line);color:var(--muted)}.b .section{padding:120px 0}.b .section-title,.b .mission-content h2,.b .contact h2{font-family:var(--serif);font-weight:400}.b .mission-layout{grid-template-columns:.8fr 2fr}.b .mission{background:var(--surface)}.b .mission-content h2{font-size:clamp(32px,3.7vw,54px)}.b .service-grid{display:block;border:0;border-top:1px solid var(--ink)}.b .service-card{display:grid;grid-template-columns:80px .95fr 1.1fr;column-gap:5%;padding:40px 0;border-bottom:1px solid var(--line)}.b .service-card+.service-card{border-left:0}.b .service-no{grid-row:1/5;display:block;font-family:var(--serif);font-size:48px;margin:0;line-height:1.4}.b .service-icon{display:none}.b .service-en{grid-column:2}.b .service-card h3{grid-column:2;grid-row:2/4;font-family:var(--serif);font-size:29px;margin:0;min-height:0}.b .service-card .description{grid-column:3;grid-row:1/3}.b .service-list{grid-column:3;grid-row:3;padding-top:15px;margin-top:20px}.b .service-link{grid-column:2;grid-row:4;margin-top:20px;width:max-content;gap:50px;border:0;padding:0}.b .services{background:var(--paper)}.b .value-chain{padding:30px;background:var(--surface)}.b .member-card{display:block;border-top:1px solid var(--line);padding:28px 0}.b .member-initial{font-family:var(--serif);font-style:italic;font-size:58px;margin-bottom:35px;line-height:1.3;color:#557b62}.b .members{background:var(--surface)}.b .contact-layout{align-items:center}.b .contact .primary{background:transparent;color:#fff;padding:28px;min-width:290px}.b .contact .primary:hover{background:#fff;color:var(--dark)}.b .contact h2{font-size:clamp(32px,3.4vw,50px)}
/* C: dark technical, precise grid and large sans lettering. */
.c{--paper:#0b1013;--surface:#111a20;--ink:#eef4f5;--muted:#a3b4bf;--line:#2a3942;--accent:#8de1e5;--dark:#14242c;color-scheme:dark}.c .design-nav{background:#152027;color:#d8e6ec;border-color:#31414d}.c .design-nav a[aria-current=page]{background:#b3eef0;color:#10252b}.c .brand img,.c .footer img{filter:brightness(0) invert(1)}.c .header-cta{background:#a3e7e9;color:#0b1c21}.c .header{background:#0b1013eb}.c .hero{min-height:730px;background:#0b1013}.c .hero-visual{position:absolute;right:0;top:0;width:66%;height:100%;z-index:-2;background:#121e25}.c .hero-visual:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#0b1013 0%,#0b101391 32%,transparent 88%)}.c .hero-inner{padding-top:76px;padding-bottom:58px;min-height:635px}.c .hero h1{font-family:var(--display);font-weight:600;font-size:clamp(55px,6.8vw,102px);line-height:1.13;letter-spacing:-.06em;margin:31px 0}.c .hero h1 span{color:var(--accent)}.c .hero-jp{font-size:clamp(24px,2.5vw,36px);letter-spacing:.03em;margin-bottom:18px}.c .hero-intro{max-width:29em;font-size:16px;color:var(--muted)}.c .hero .eyebrow{color:var(--accent)}.c .hero .primary{background:var(--accent);color:#10272b;border-color:var(--accent)}.c .hero .primary:hover{background:#d5fbfc}.c .hero-meta{font-family:var(--display);color:var(--muted)}.c .mission-layout{grid-template-columns:1fr 2.1fr}.c .mission-content h2{font-weight:500}.c .mission-sign{color:var(--accent);font-size:16px}.c .services{background:var(--paper)}.c .service-grid{gap:16px;border:0}.c .service-card{background:var(--surface);border:1px solid var(--line);padding:30px 25px}.c .service-card+.service-card{border-left:1px solid var(--line)}.c .service-no{font-size:16px;color:var(--accent);margin-bottom:36px}.c .service-card h3{font-size:25px;font-weight:500}.c .service-icon{width:50px;height:50px}.c .value-chain{background:var(--surface);padding:32px;border:1px solid var(--line)}.c .member-card{border-top-color:var(--line);display:block}.c .member-initial{border:1px solid var(--line);background:var(--surface);display:flex;width:74px;height:74px;font-size:24px;align-items:center;justify-content:center;margin-bottom:30px;padding:0}.c .contact{border-top:1px solid var(--line)}.c .contact .primary{background:var(--accent);color:#10272b;border-color:var(--accent)}.c .section-label{color:var(--accent)}
/* News pages and navigation. */
.news-page{min-height:65vh}.page-heading{padding:76px 0 65px;border-bottom:1px solid var(--line)}.breadcrumb{display:flex;gap:15px;font-size:12px;color:var(--muted);margin-bottom:45px}.page-heading h1{font-size:clamp(40px,5vw,68px);line-height:1.4;margin:18px 0}.page-heading p{color:var(--muted);font-size:16px}.news-layout{display:grid;grid-template-columns:220px 1fr;gap:70px;padding-top:65px;padding-bottom:100px}.news-filters{display:flex;flex-direction:column;gap:8px}.news-filters button{display:flex;justify-content:space-between;background:transparent;border:0;padding:12px 15px;text-align:left;font-size:14px}.news-filters button[aria-pressed=true]{background:var(--ink);color:var(--paper)}.news-filters button:hover{outline:1px solid var(--line)}.news-count{font-size:12px;color:var(--muted);margin-bottom:18px}.news-empty{padding:50px 0;color:var(--muted)}[hidden]{display:none!important}.article-body{max-width:800px;margin:auto;padding:65px var(--gutter) 100px}.article-body p{margin-bottom:25px;line-height:2.2}.article-body .text-link{margin-top:28px}
@media(min-width:1600px){.hero-visual{max-width:none}.a .hero{min-height:770px}.a .hero-inner{min-height:682px}.c .hero{min-height:800px}.c .hero-inner{min-height:705px}}
@media(max-width:1150px){.navigation{gap:16px}.navigation a{font-size:12px}.header-inner{gap:22px}.header-cta{gap:16px;padding:12px 16px}.service-card{padding:28px 22px}.service-card h3{font-size:22px}.mission-layout,.split{gap:40px;grid-template-columns:.8fr 2fr}.member-name{font-size:21px}.b .hero-statement{display:none}.news-item{grid-template-columns:90px 80px 1fr 18px;gap:12px}.b .service-card{grid-template-columns:55px 1fr 1.2fr;column-gap:30px}}
@media(max-width:900px){.header-inner,.b .header-inner{min-height:76px}.navigation{display:none;position:absolute;left:0;right:0;top:100%;margin:0;padding:22px var(--gutter);background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}.navigation a{font-size:16px;padding:12px 0}.navigation.is-open{display:flex}.menu-toggle{display:block;margin-left:auto}.header-cta{font-size:12px}.brand img{width:118px}.hero h1{font-size:clamp(40px,6.6vw,62px)}.a .hero-visual{left:15%;opacity:.8}.a .hero-intro{max-width:29em}.section{padding:80px 0}.service-grid{grid-template-columns:1fr}.service-card{display:grid;grid-template-columns:90px 1fr;column-gap:25px;padding:30px}.service-card+.service-card{border-left:0;border-top:1px solid var(--line)}.service-no{grid-row:1/6;display:block;margin:0}.service-icon{display:block;margin-top:30px}.service-en,.service-card h3,.service-card .description,.service-list,.service-link{grid-column:2}.service-card h3{min-height:0;font-size:25px}.service-list{margin-top:25px}.mission-layout,.split{grid-template-columns:1fr;gap:40px}.mission-content h2{font-size:36px}.member-grid{gap:25px}.member-card{display:block}.member-initial{margin-bottom:20px}.member-name{font-size:21px}.value-chain{grid-template-columns:1fr}.contact-layout{display:block}.contact .primary{margin-top:30px}.b .section{padding:80px 0}.b .hero h1{font-size:clamp(40px,7.6vw,70px)}.b .hero-lower{gap:40px}.b .hero-visual{height:360px}.b .hero-actions{gap:10px}.b .mission-layout,.c .mission-layout{grid-template-columns:1fr}.b .service-card{grid-template-columns:65px 1fr}.b .service-no{grid-row:1/7}.b .service-en{grid-column:2;grid-row:1}.b .service-card h3{grid-column:2;grid-row:2;margin:0 0 20px;font-size:26px}.b .service-card .description{grid-column:2;grid-row:3}.b .service-list{grid-column:2;grid-row:4}.b .service-link{grid-column:2;grid-row:5}.c .service-card+.service-card{border-left:1px solid var(--line)}.c .hero h1{font-size:76px}.c .hero-visual{width:85%;opacity:.8}.news-layout{grid-template-columns:1fr;gap:25px}.news-filters{flex-direction:row;flex-wrap:wrap}.news-filters button{gap:24px}.footer-right{gap:20px}}
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