:root{--paper:#f4f1eb;--paper-deep:#eae7df;--ink:#172536;--body:#596574;--gold:#caa45a;--gold-light:#e4c986;--cyan:#36afbe;--line:#d9d6ce;--navy:#0d1827;--navy-deep:#08111d;--white:#fbfaf7;--font:Arial,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.9;-webkit-font-smoothing:antialiased}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}button,a,summary{-webkit-tap-highlight-color:transparent}a,button,summary{touch-action:manipulation}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex="0"]:focus-visible{outline:3px solid var(--cyan);outline-offset:5px}::selection{background:#cde9eb;color:var(--navy)}h1,h2,h3,p{margin:0}h1,h2,h3{font-feature-settings:"palt";overflow-wrap:anywhere}svg{display:block;max-width:100%}[hidden]{display:none!important}.container{width:min(1240px,calc(100% - 112px));margin-inline:auto}.section{padding-block:110px}.eyebrow{font-size:10px;font-weight:600;letter-spacing:.15em;display:flex;gap:10px;align-items:center;line-height:1.6}.status-dot,.tiny-dot{display:inline-block;border-radius:50%;flex:none;background:var(--cyan)}.status-dot{width:5px;height:5px;box-shadow:0 0 0 4px #36afbe13}.tiny-dot{width:4px;height:4px;margin-top:9px}.skip-link{position:fixed;top:-100px;left:20px;z-index:100;background:var(--navy);color:white;padding:12px 24px}.skip-link:focus{top:10px}.site-header{position:sticky;top:0;z-index:30;background:#f4f1ebf5;border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}.header-inner{height:84px;display:flex;justify-content:space-between;align-items:center}.brand{display:inline-flex;gap:11px;align-items:center;font-size:25px;font-weight:800;letter-spacing:.035em;line-height:1}.brand-mark{height:31px;width:28px;fill:none;stroke:var(--cyan);stroke-width:1.7}.brand-mark path:first-child{stroke:var(--gold)}.brand-dot{color:var(--gold)}.main-nav{display:flex;gap:34px;align-items:center;font-size:12px;font-weight:600}.main-nav>a:not(.nav-contact){position:relative}.main-nav>a:not(.nav-contact):after{content:"";position:absolute;bottom:-7px;left:0;width:0;height:1px;background:var(--gold);transition:width .2s}.main-nav>a:hover:after{width:100%}.nav-contact{display:flex;gap:30px;align-items:center;border:1px solid var(--ink);padding:10px 18px;margin-left:5px;transition:background .2s,color .2s}.nav-contact:hover{background:var(--navy);color:var(--paper)}.nav-contact>span{font-size:20px;line-height:1}.menu-toggle{display:none}
/* Hero: supplied Tsumugi visual, with readable copy and the existing navigation. */
.hero{position:relative;isolation:isolate;overflow:hidden;background:var(--navy);color:var(--paper)}.hero-background{position:absolute;inset:0;z-index:-3;width:100%;height:100%;object-fit:cover;object-position:65% center}.hero:before{content:"";position:absolute;inset:0;z-index:-2;background:linear-gradient(90deg,#091421 0%,#091421eb 27%,#09142194 48%,#09142105 75%,#09142133 100%)}.hero:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(0deg,#09142199 0,transparent 28%,transparent 80%,#09142122 100%)}.hero-gridline{position:absolute;inset:0;z-index:-1;background-image:linear-gradient(#a4e0e308 1px,transparent 1px),linear-gradient(90deg,#a4e0e308 1px,transparent 1px);background-size:70px 70px;mask-image:linear-gradient(90deg,black,transparent 70%)}.hero-inner{position:relative;min-height:600px;display:flex;align-items:center;padding-block:72px 78px}.hero-copy{max-width:650px;position:relative;z-index:1}.hero .eyebrow{color:#b8c6cf;font-size:9px;letter-spacing:.16em}.eyebrow-divider{color:var(--gold);margin-inline:4px}.hero .status-dot{background:var(--gold)}.hero h1{font-size:clamp(48px,5.3vw,76px);line-height:1.3;font-weight:500;letter-spacing:-.055em;margin:26px 0 0 -.055em}.hero h1 em{font-style:normal;color:var(--gold-light)}.hero-belief{font-size:23px;font-weight:500;letter-spacing:.08em;margin-top:28px}.hero-description{font-size:14px;line-height:2.15;color:#c0c8cf;margin-top:19px}.hero-actions{display:flex;align-items:center;gap:30px;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:35px;min-height:54px;padding:12px 23px;font-size:12px;font-weight:600;border:1px solid transparent;transition:background .2s,transform .2s,box-shadow .2s}.button>span{font-size:20px;line-height:1}.button:hover{transform:translateY(-2px)}.button-gold{background:var(--gold);color:var(--navy-deep)}.button-gold:hover{background:var(--gold-light);box-shadow:0 8px 30px #caa45a2e}.button-dark{background:var(--navy);color:var(--paper)}.button-dark:hover{background:#20344c}.text-link{display:inline-flex;align-items:center;gap:18px;font-size:11px;font-weight:500}.text-link>span{font-size:18px}.text-link:hover{text-decoration:underline;text-underline-offset:6px}.launch-note{display:flex;align-items:center;gap:8px;font-size:10px;color:#abb5be;margin-top:24px}.launch-note>span{font-size:18px;line-height:1}.hero-image-caption{position:absolute;right:0;bottom:65px;display:flex;flex-direction:column;gap:5px;color:#a9becd;font-size:8px;letter-spacing:.16em;text-align:right}.hero-image-caption>span:first-child{color:var(--gold-light);font-size:9px}.hero-foot{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #95a7ba38;padding-block:18px;position:relative;font-size:8px;letter-spacing:.14em;color:#abb7c3}.hero-foot>a{display:flex;gap:18px;align-items:center}.hero-foot>a>span{font-size:17px}.theme-strip{background:#ebe8e0;border-bottom:1px solid var(--line);padding-block:19px}.theme-strip>.container{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:10px;font-weight:500;letter-spacing:.12em;color:#7e858a}.theme-strip i{font-style:normal;color:var(--gold);font-size:13px}
/* Vision */
.vision{background:var(--paper)}.vision-grid{display:grid;grid-template-columns:185px 1fr 210px;gap:48px;align-items:start}.section-label{display:flex;flex-direction:column;align-items:flex-start;gap:9px}.section-number{font-size:10px;line-height:1.4;width:30px;border-top:1px solid var(--gold);padding-top:8px;margin-bottom:15px;color:#9a8153}.label-jp{font-size:10px;letter-spacing:.05em;color:#7c8389}h2{font-size:clamp(30px,3.3vw,46px);letter-spacing:-.045em;line-height:1.5;font-weight:500}.vision-body{font-size:14px;line-height:2.15;color:var(--body);margin-top:29px}.vision-body p+p{margin-top:17px}.vision-signature{display:flex;align-items:center;gap:13px;font-size:11px;letter-spacing:.09em;margin-top:34px;color:#8d774c}.small-door{width:13px;height:19px;border:1px solid var(--gold);border-bottom:0;position:relative}.small-door:after{content:"";position:absolute;inset:3px -5px 0 4px;border:1px solid var(--cyan);border-bottom:0;transform:skewY(-20deg)}.time-art{align-self:center;padding:16px 0 0;margin-top:20px}.time-top{display:flex;align-items:baseline;justify-content:space-between}.time-top>span{font-size:9px;letter-spacing:.15em}.time-top b{font-size:68px;font-weight:400;line-height:1.1;letter-spacing:-.05em;color:#9a8153}.time-top b>span{font-size:22px;margin-left:5px}.time-line{display:flex;gap:4px;height:12px;margin-top:18px}.time-work{background:var(--navy);flex:1}.time-free{background:repeating-linear-gradient(120deg,#c8b383,#c8b383 2px,transparent 2px,transparent 5px);flex:3}.time-bottom{display:flex;justify-content:space-between;font-size:15px;margin-top:12px}.time-bottom small{display:block;font-size:9px;color:#737c86}.time-art>p{font-size:8px;letter-spacing:.12em;border-top:1px solid var(--line);padding-top:18px;margin-top:24px}
/* Services: keyboard-operable tabs, each with a supplied concept image. */
.services{background:var(--paper-deep);border-block:1px solid var(--line)}.section-intro{display:grid;grid-template-columns:185px 1fr;gap:48px}.section-description{color:var(--body);font-size:14px;line-height:2.1;margin-top:24px}.service-explorer{display:grid;grid-template-columns:38% 62%;border-block:1px solid #cbc8c0;margin-top:50px}.service-tabs{display:flex;flex-direction:column;padding:16px 32px 16px 0}.service-tab{display:flex;align-items:center;gap:18px;background:none;border:0;border-bottom:1px solid #d0cdc5;text-align:left;padding:29px 15px 29px 12px;position:relative;transition:background .2s}.service-tab:last-child{border-bottom:0}.service-tab:before{content:"";position:absolute;left:0;top:28px;bottom:28px;width:3px;background:transparent}.service-tab[aria-selected=true]{background:#f4f1eb}.service-tab[aria-selected=true]:before{background:var(--gold)}.service-tab:hover{background:#f4f1ebaa}.tab-number{font-size:10px;color:#9a8153;align-self:flex-start;margin-top:4px;flex:none}.service-tab strong{display:block;font-size:17px;font-weight:500;line-height:1.5;letter-spacing:-.02em}.service-tab small{display:block;font-size:11px;color:#65717d;margin-top:9px}.tab-arrow{font-size:21px;margin-left:auto;color:#9aa5ad;transition:transform .2s}.service-tab[aria-selected=true] .tab-arrow{color:#a08347;transform:translate(2px,-2px)}.service-panels{min-width:0;border-left:1px solid #cbc8c0;background:#f9f7f2}.service-panel{height:100%;animation:panel-enter .3s ease-out}.panel-visual{height:245px;position:relative;overflow:hidden;background:var(--navy);border-bottom:1px solid var(--line)}.panel-visual img{width:100%;height:100%;object-fit:cover;object-position:center 48%;transition:transform .5s}.service-panel:hover .panel-visual img{transform:scale(1.025)}.panel-visual:after{content:"";position:absolute;inset:45% 0 0;background:linear-gradient(transparent,#08111dc7)}.visual-caption{position:absolute;bottom:17px;left:28px;z-index:1;color:#b9c9d5;font-size:8px;letter-spacing:.15em}.panel-copy{padding:26px 30px 30px}.panel-kicker{font-size:10px;color:#927747;letter-spacing:.05em;margin-bottom:9px}.panel-copy h3{font-size:21px;letter-spacing:-.025em;line-height:1.7;font-weight:500}.panel-copy>p:not(.panel-kicker){font-size:13px;line-height:2.05;color:var(--body);margin-top:12px}.panel-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:22px}.panel-tags>span{font-size:10px;padding:3px 10px;border:1px solid #d9d4c8;color:#6b727b}.section-footnote{display:flex;align-items:flex-start;gap:9px;font-size:11px;color:#727c85;line-height:1.9;margin-top:20px}
/* Runway: an observable path from uncertainty to a handover. */
.runway{background:#f9f7f2}.runway h2 span{color:#6e7a87}.runway-track{display:grid;grid-template-columns:repeat(4,1fr);gap:34px;list-style:none;padding:0;margin:64px 0 0;position:relative}.runway-track:before{content:"";position:absolute;left:5px;right:5px;top:48px;height:1px;background:linear-gradient(90deg,#caa45aaa,#36afbe88)}.runway-track li{position:relative}.runway-step-number{font-size:10px;letter-spacing:.13em;color:#977b44}.runway-dot{display:block;width:9px;height:9px;border-radius:50%;background:#f9f7f2;border:1px solid var(--cyan);margin:21px 0 27px;position:relative;z-index:1;box-shadow:0 0 0 5px #f9f7f2}.runway-track li:first-child .runway-dot{background:var(--gold);border-color:var(--gold)}.runway-en{font-size:24px;font-weight:400;letter-spacing:-.025em;line-height:1.3;color:#233a50}.runway-track h3{font-size:17px;font-weight:500;margin-top:13px;line-height:1.8}.runway-track li>p:not(.runway-en){font-size:12px;line-height:2;color:var(--body);margin-top:12px;max-width:240px}.runway-track small{display:block;font-size:9px;letter-spacing:.02em;color:#7c8793;margin-top:20px}.evidence-ribbon{display:grid;grid-template-columns:1.2fr repeat(3,1fr);border:1px solid var(--line);margin-top:55px;padding:26px 0;align-items:center}.evidence-ribbon>div,.runway-motto{padding-inline:25px}.evidence-ribbon>div{border-left:1px solid var(--line)}.runway-motto{font-size:17px;font-weight:500;line-height:1.7;letter-spacing:.02em}.evidence-ribbon span{font-size:9px;letter-spacing:.14em;color:#917644;display:flex;align-items:center;gap:8px}.evidence-ribbon span:before{content:"";width:4px;height:4px;border-radius:50%;background:var(--cyan)}.evidence-ribbon>div>p{font-size:11px;color:#65717c;margin-top:8px}
/* Fortress: a concept diagram, with research status and scope kept explicit. */
.fortress{background:var(--navy);color:#f4f1eb;position:relative;overflow:hidden}.fortress:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 80% 45%,#2392aa14,transparent 65%);pointer-events:none}.fortress>.container{position:relative}.fortress-top{display:flex;align-items:flex-end;justify-content:space-between}.fortress .section-label{color:#9cb3c2}.fortress .section-number{color:var(--gold)}.research-badge{display:flex;gap:9px;align-items:center;border:1px solid #7e693d;padding:4px 11px;line-height:1.8;font-size:10px;color:var(--gold-light)}.research-badge .status-dot{background:var(--gold);width:4px;height:4px}.fortress-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;margin-top:50px;align-items:center}.fortress-name{font-size:12px;letter-spacing:.14em;color:var(--gold-light);margin-bottom:19px}.fortress-name>span{font-size:10px;letter-spacing:.04em;color:#95a9ba}.fortress h2{font-size:clamp(32px,3.3vw,46px);line-height:1.5}.fortress-copy>p:not(.fortress-name){margin-top:26px;font-size:14px;line-height:2.2;color:#b3c0cc}.fortress-detail-link{margin-top:27px;color:var(--gold-light)}.fortress-diagram{border:1px solid #4b657d;padding:22px 28px;background:#122235;box-shadow:0 20px 50px #020a1533;position:relative;isolation:isolate;overflow:hidden}.fortress-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;opacity:.28}.fortress-diagram:after{content:"";position:absolute;inset:0;background:linear-gradient(#0d1827bb,#0d1827ee);z-index:-1}.diagram-caption{display:flex;justify-content:space-between;font-size:8px;letter-spacing:.14em;color:#a1b5c6;border-bottom:1px solid #43556b;padding-bottom:15px;margin-bottom:20px}.legacy-block{padding:10px 15px;border:1px solid #5b6d83;display:flex;align-items:center;justify-content:center;gap:17px;font-size:14px;background:#122235b3}.legacy-block small,.core-block small{display:block;font-size:9px;color:#a7b7c9;margin-top:2px}.diagram-icon{font-size:25px;color:var(--gold-light)}.diagram-connector{color:#81a7b9;text-align:center;line-height:1.3;padding:5px;font-size:18px}.fortress-boundary{border:1px dashed #9d874f;padding:18px 15px 14px;position:relative;margin-top:7px;background:#172d41b3}.boundary-label{position:absolute;top:-10px;left:14px;padding-inline:8px;background:#122235;font-size:9px;color:var(--gold-light)}.adapter-block{font-size:12px;padding:6px;text-align:center;border:1px solid #4c788b;color:#c0dce4;background:#122235aa}.core-block{display:flex;gap:13px;align-items:center;background:linear-gradient(100deg,#d5b46e,#e3c98d);color:#152336;padding:12px 14px;font-size:16px;line-height:1.5}.core-block svg{width:23px;fill:none;stroke:#4c4938;stroke-width:1.5}.core-block small{color:#5f543c;font-size:9px}.core-led{margin-left:auto;width:5px;height:5px;background:#2a626a;border-radius:50%}.destinations{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.destinations>span{font-size:10px;text-align:center;border:1px solid #4b6174;background:#122235aa;padding:7px 3px;color:#c0cdda}.diagram-note{font-size:9px;line-height:1.9;color:#9eafc1;margin-top:15px}.fortress-principles{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;margin-top:64px;padding-top:29px;border-top:1px solid #3c4b5e;scroll-margin-top:120px}.fortress-principles>div{padding-right:15px}.fortress-principles>div>span{font-size:8px;color:var(--gold-light);letter-spacing:.14em}.fortress-principles h3{font-size:17px;font-weight:500;margin-top:13px;letter-spacing:.015em}.fortress-principles p{font-size:12px;line-height:2;color:#a6b6c5;margin-top:10px}.fortress-scope{border-block:1px solid #3c4b5e;margin-top:38px;font-size:12px}.fortress-scope summary{display:flex;justify-content:space-between;align-items:center;list-style:none;cursor:pointer;padding:17px 0;color:#c5cfda}.fortress-scope summary::-webkit-details-marker{display:none}.fortress-scope summary>span{font-size:20px;color:#ba9c5e;transition:transform .2s}.fortress-scope[open] summary>span{transform:rotate(45deg)}.fortress-scope>div{padding:0 28px 24px 0;color:#aebdcb;max-width:850px;line-height:2}.fortress-scope p+p{margin-top:12px}
/* FAQ and contact */
.faq{background:var(--paper);padding-block:90px}.faq-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:70px}.faq h2{font-size:32px;margin-top:21px}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{display:flex;gap:24px;justify-content:space-between;align-items:center;padding:24px 0;font-size:14px;font-weight:500;list-style:none;cursor:pointer}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary>span{font-size:22px;color:#9e8451;flex:none;transition:transform .2s}.faq-list details[open] summary>span{transform:rotate(45deg)}.faq-list details p{padding:0 38px 27px 0;font-size:13px;line-height:2.1;color:var(--body)}.contact{padding-bottom:0;position:relative;overflow:hidden;background:var(--navy-deep);color:var(--paper)}.contact:before{content:"";position:absolute;right:-120px;bottom:0;width:750px;height:750px;border-radius:50%;background:radial-gradient(circle,#227d9626,transparent 65%);pointer-events:none}.contact:after{content:"";position:absolute;right:10%;bottom:-90px;width:300px;height:550px;border:1px solid #3d52663b;transform:skewY(-12deg);pointer-events:none}.contact-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:75px;align-items:center;position:relative;z-index:1}.contact .eyebrow{color:var(--gold-light)}.contact h2{font-size:clamp(29px,3vw,42px);margin-top:29px;line-height:1.65;letter-spacing:-.055em}.contact-grid>div>p:not(.eyebrow){margin-top:24px;color:#a9b8c7;font-size:14px;line-height:2.15}.contact-card{border:1px solid #43566c;background:#142339;padding:33px;box-shadow:0 10px 35px #00000017}.contact-card-label{font-size:9px;color:var(--gold-light);letter-spacing:.12em}.contact-card h3{font-size:25px;font-weight:500;margin-top:20px;line-height:1.6}.contact-card #contact-description{font-size:13px;line-height:2;margin-top:16px;color:#b1c0cf}.contact-card .contact-small{font-size:10px;line-height:1.9;margin-top:17px;color:#9aaec1}.contact-email{margin-top:25px}.contact-email .button{width:100%;min-height:55px;background:var(--gold);color:var(--navy-deep)}.contact-email .button:hover{background:var(--gold-light)}.email-tools{display:flex;justify-content:space-between;align-items:center;gap:14px}.email-address{display:block;font-size:12px;letter-spacing:.02em;margin-top:14px;overflow-wrap:anywhere;line-height:1.8;color:#c4d1dd}.copy-email{background:none;color:#b6c9db;border:0;border-bottom:1px solid #6c8096;padding:3px 0;font-size:10px;line-height:1.7;margin-top:10px;min-height:34px;min-width:40px}.copy-email:hover{color:var(--gold-light)}.copy-status{font-size:10px;min-height:19px;color:var(--gold-light);margin-top:6px}.contact-bottom{position:relative;z-index:1;padding-block:48px 24px;margin-top:55px;display:flex;justify-content:space-between;align-items:center}.contact-bottom>span{font-size:12px;font-weight:500;letter-spacing:.08em;color:var(--gold-light)}.contact-bottom>a{font-size:8px;letter-spacing:.14em;display:flex;align-items:center;gap:18px;color:#a8b9ca}.contact-bottom>a>span{font-size:20px}.site-footer{border-top:1px solid #26374b;background:#060e18;color:#c2cdda}.footer-inner{min-height:105px;display:flex;justify-content:space-between;gap:24px;align-items:center}.footer-brand{font-size:20px;gap:8px}.footer-brand .brand-mark{width:23px;height:26px}.footer-status{font-size:8px;letter-spacing:.09em;color:#97a6b7;margin-left:auto;margin-right:30px}.footer-inner>small{font-size:8px;color:#97a6b7}
@keyframes panel-enter{from{opacity:.5;transform:translateY(5px)}to{opacity:1;transform:none}}
@media(min-width:1600px){.hero-inner{min-height:675px}.hero h1{font-size:80px}}
@media(max-width:1150px){.container{width:calc(100% - 72px)}.main-nav{gap:26px}.hero-inner{min-height:580px;padding-block:65px 75px}.hero h1{font-size:clamp(47px,5.8vw,68px)}.hero:before{background:linear-gradient(90deg,#091421 0%,#091421e8 27%,#091421a3 49%,#0914211a 80%)}.vision-grid{grid-template-columns:140px 1fr 175px;gap:30px}.section-intro{grid-template-columns:140px 1fr;gap:30px}.section{padding-block:90px}.service-tabs{padding-right:22px}.service-tab{gap:12px;padding:27px 12px}.service-tab strong{font-size:15px}.service-tab small{font-size:10px}.panel-copy{padding:25px}.panel-copy h3{font-size:19px}.panel-visual{height:225px}.fortress-grid{gap:40px}.runway-track{gap:25px}.runway-track h3{font-size:16px}.evidence-ribbon>div,.runway-motto{padding-inline:20px}.evidence-ribbon>div>p{font-size:10px}.contact{padding-bottom:0}.contact-grid{gap:45px}.contact-card{padding:27px}.footer-status{margin-right:0}}
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