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*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:98px}
body{margin:0;color:var(--ink);background:var(--paper);font-family:var(--sans);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
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.wrap{width:min(1280px,calc(100% - 112px));margin-inline:auto}
.header{position:sticky;top:0;z-index:10;background:rgba(245,243,237,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
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.hero-description{font-size:16px;line-height:1.95;max-width:390px;color:var(--muted);margin:0 0 38px}
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.figure-top{font-family:var(--mono);font-size:9px;letter-spacing:.09em;display:flex;justify-content:space-between;color:var(--muted);padding-inline:24px;position:absolute;top:14px;left:0;width:100%}
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.hero-figure figcaption{display:flex;align-items:center;gap:14px;font-size:11px;letter-spacing:.03em;color:var(--muted);margin-top:-16px;padding-left:25px}
.figure-cross{font-family:var(--mono);font-size:22px;font-weight:200}
.hero-footer{grid-column:1/-1;align-self:end;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;height:68px;font-family:var(--mono);font-size:9px;letter-spacing:.12em;color:var(--muted)}
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.section-index{color:var(--accent);margin-right:14px;letter-spacing:0}
.section-heading .eyebrow{margin-bottom:20px}
h2{font-size:clamp(27px,2.7vw,38px);font-weight:500;line-height:1.5;letter-spacing:-.045em;margin:0;white-space:pre-line}
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.research-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));column-gap:40px;row-gap:22px;align-items:start}
.research-item{border-top:1px solid var(--ink);padding-top:22px;min-height:235px}
.research-item summary{display:flex;align-items:flex-start;list-style:none;cursor:pointer;gap:12px;position:relative;min-height:58px}
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.item-number{font-family:var(--mono);font-size:10px;color:var(--accent);padding-top:6px}
.research-heading{flex:1}
.research-title{font-size:21px;font-weight:500;line-height:1.5;letter-spacing:-.04em;display:block;padding-right:9px}
.research-english{font-family:var(--mono);font-size:8px;letter-spacing:.03em;color:var(--muted);display:block;margin-top:8px;line-height:1.6}
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.expand-icon:after{transform:rotate(90deg);transition:transform .2s}
.research-item[open] .expand-icon:after{transform:rotate(0)}
.research-detail{padding:12px 20px 24px 24px}
.research-detail>p{font-size:13px;line-height:1.9;color:var(--muted);margin:8px 0 16px}
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.research-question:before{content:"↳";margin-right:7px;color:var(--accent)}
.reliability{display:grid;grid-template-columns:1.25fr 1fr;gap:80px;border-top:1px solid var(--line);margin-top:54px;padding-top:48px;align-items:center}
.reliability .eyebrow{color:var(--accent);font-size:9px;margin-bottom:16px}
.reliability h3{font-size:27px;font-weight:500;letter-spacing:-.04em;line-height:1.4;margin:0 0 18px}
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.reliability-copy>p.reliability-scope{font-size:11px;margin-bottom:0}
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.target-label{font-size:10px;letter-spacing:.08em;color:var(--accent);line-height:1.6;margin:0 0 8px}
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.target-caption{font-size:11px;line-height:1.8;color:var(--muted);margin:0}
.approach{background:var(--sage)}
.approach .section-heading{margin-bottom:40px}
.approach-content{display:grid;grid-template-columns:1.15fr 1fr;gap:88px;align-items:center}
.inquiry-diagram{padding-bottom:22px;text-align:center}
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.diagram-caption{font-family:var(--mono);font-size:8px;letter-spacing:.15em;color:var(--muted)}
.inquiry-content{padding:25px 0}
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.inquiry-tabs button{border:0;border-bottom:2px solid transparent;background:transparent;padding:15px 0;margin-bottom:-1px;display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted);white-space:nowrap}
.inquiry-tabs button>span:first-child{font-family:var(--mono);font-size:9px}
.inquiry-tabs button[aria-selected="true"]{border-color:var(--accent);color:var(--accent)}
.inquiry-panel{min-height:212px}
.inquiry-panel .eyebrow{color:var(--muted);font-size:9px;letter-spacing:.1em;margin:0 0 16px}
.inquiry-panel h3{font-size:25px;font-weight:500;line-height:1.5;letter-spacing:-.04em;margin:0 0 17px}
.inquiry-panel>p:last-child{font-size:14px;line-height:1.95;color:var(--muted);margin:0 0 30px}
.inquiry-content>.text-link{font-size:12px}
.about{display:grid;grid-template-columns:1fr 1.65fr;gap:110px;padding-block:130px}
.small-symbol{font-size:110px;color:#b9c0ac;font-family:var(--serif);line-height:1;margin-top:56px;position:relative;width:100px}
.small-symbol span{font-family:var(--sans);font-size:34px;position:absolute;right:-12px;top:14px;color:var(--accent);font-weight:300}
.about h2{font-size:39px;margin-bottom:30px}
.about-copy>p{font-size:15px;line-height:2;color:var(--muted);max-width:610px}
.about-copy .text-link{margin-top:24px}
.closing{background:var(--ink);color:var(--paper)}
.closing-inner{position:relative;padding-block:76px 88px}
.closing .eyebrow{color:#b2bbaa;font-size:9px;margin-bottom:30px}
.closing-statement{font-family:var(--serif);font-size:clamp(36px,4.1vw,60px);line-height:1.4;letter-spacing:-.04em;font-weight:400;margin:0}
.closing-statement span{display:block}
.closing-statement span:last-child{color:#c1cbb6}
.back-top{position:absolute;right:0;bottom:86px;display:grid;place-items:center;width:52px;height:52px;border:1px solid #6c7a65;border-radius:50%;font-size:26px;font-weight:300;transition:background .2s}
.back-top:hover{background:#3b4b35}
.footer{min-height:112px;display:flex;align-items:center;gap:35px}
.footer .wordmark{font-size:25px}
.footer p,.footer>div{font-family:var(--mono);font-size:10px;color:var(--muted)}
.footer>div{display:flex;gap:28px;margin-left:auto}
html[lang="en"] h1{font-size:clamp(47px,4.9vw,70px);line-height:1.1;letter-spacing:-.055em;margin-block:32px}
html[lang="en"] h1 span{white-space:normal}
html[lang="en"] .hero-description{line-height:1.8;max-width:420px;font-size:15px}
html[lang="en"] .research-title{font-size:20px}
html[lang="en"] .research-item{min-height:274px}
html[lang="en"] .research-detail>p{font-size:12px}
html[lang="en"] .inquiry-panel{min-height:250px}
html[lang="en"] h2{line-height:1.2}
@media(min-width:1600px){.hero{min-height:790px}}
@media(max-width:1100px){.wrap{width:calc(100% - 72px)}.hero{min-height:640px;padding-top:44px}.hero h1{font-size:62px}.hero-description{font-size:14px;max-width:340px}.hero-figure{padding-bottom:25px}.manifold{width:115%;margin-left:-8%}.section{padding-block:85px}.section-heading{gap:40px}.research-grid{column-gap:26px}.research-title{font-size:18px}.research-detail{padding-right:3px}.research-english{font-size:7px}.approach-content{gap:40px}.about{gap:65px}.about h2{font-size:33px}.inquiry-tabs{gap:25px}.inquiry-panel h3{font-size:22px}.inquiry-panel{min-height:238px}html[lang="en"] .inquiry-panel{min-height:278px}}
@media(max-width:800px){.wrap{width:calc(100% - 48px)}.header-inner{height:74px;gap:20px}.navigation{gap:20px}.navigation a{font-size:12px}.header-actions{gap:12px;margin-left:0}.wordmark{font-size:26px}.q-mark{display:none}.hero{min-height:auto;grid-template-columns:1fr;padding-top:52px}.hero-copy{padding-bottom:4px;max-width:620px}.hero h1{font-size:66px;margin-top:28px;line-height:1.22}.hero-description{max-width:460px;font-size:15px;line-height:1.9;margin-bottom:26px}.hero-link{gap:18px}.hero-figure{width:80%;justify-self:center;margin-top:22px;padding:26px 0 30px}.figure-top{top:8px;padding-inline:0}.manifold{width:100%;margin-left:0;margin-top:-10px}.hero-figure figcaption{padding:0;justify-content:center;margin-top:-28px}.hero-footer{height:65px}.section-heading{grid-template-columns:1fr;gap:22px;margin-bottom:42px}.section-intro{max-width:550px}.research-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:25px}.research-title{font-size:21px}.research-english{font-size:8px}.research-item{min-height:242px}.section{padding-block:72px}.approach-content{grid-template-columns:1fr;gap:10px}.inquiry-diagram{width:min(560px,100%);justify-self:center}.inquiry-content{padding-top:0}.inquiry-panel,html[lang="en"] .inquiry-panel{min-height:165px}.inquiry-tabs{gap:40px}.about{grid-template-columns:1fr;gap:12px}.about-label .eyebrow{margin:0 0 20px}.small-symbol{display:none}.about h2{font-size:34px}.about-copy>p{font-size:14px}.closing-inner{padding-block:62px 70px}.back-top{bottom:65px}.closing-statement{font-size:44px}.footer{gap:20px}.footer>div{gap:18px}html[lang="en"] h1{font-size:68px;max-width:620px}html[lang="en"] .hero-description{max-width:540px}html[lang="en"] .research-item{min-height:273px}}
@media(max-width:520px){html{scroll-padding-top:88px}.wrap{width:calc(100% - 40px)}.header-inner{height:70px;gap:15px}.wordmark{font-size:25px}.navigation{gap:16px}.navigation a{font-size:11px;letter-spacing:0}.navigation a:nth-child(2){display:none}.header-actions{gap:0}.github-link{display:none}.language{font-size:10px;gap:6px}.hero{padding-top:44px}.eyebrow{font-size:8px;letter-spacing:.11em}.hero h1{font-size:53px;line-height:1.3;margin:28px 0 22px}.hero-description{font-size:14px;line-height:1.95;max-width:325px;margin-bottom:25px}.hero-link{font-size:12px}.round-arrow{width:32px;height:32px;font-size:16px}.hero-figure{width:100%;margin-top:30px;padding-top:28px;padding-bottom:30px}.figure-top{font-size:7px;top:7px}.manifold{margin-top:-26px}.hero-figure figcaption{margin-top:-25px;font-size:9px;gap:9px}.figure-cross{font-size:17px}.hero-footer{font-size:7px;letter-spacing:.02em;height:54px}.hero-footer a{font-size:9px;gap:10px}.hero-footer a>span:last-child{font-size:17px}.section{padding-block:58px}.section-heading{gap:18px;margin-bottom:32px}.section-heading .eyebrow{margin-bottom:16px}h2{font-size:26px;line-height:1.45}.section-intro{font-size:13px;line-height:1.9}.research-grid{grid-template-columns:1fr;gap:4px}.research-item,html[lang="en"] .research-item{min-height:0;padding-top:20px}.research-title{font-size:21px}.research-item summary{min-height:58px}.research-english{font-size:8px;margin-top:5px}.research-detail{padding:4px 22px 24px}.research-detail>p,html[lang="en"] .research-detail>p{font-size:13px;margin-top:7px}.research-detail .research-question{font-size:11px;margin-top:17px}.inquiry-diagram{padding-bottom:16px}.diagram-caption{font-size:7px}.inquiry-tabs{gap:28px;margin-bottom:25px}.inquiry-tabs button{font-size:14px;gap:8px}.inquiry-panel,html[lang="en"] .inquiry-panel{min-height:210px}.inquiry-panel h3{font-size:22px}.inquiry-panel>p:last-child{font-size:13px;line-height:1.9}.about{gap:5px}.about h2{font-size:28px;line-height:1.5;margin-bottom:22px}.about-copy>p{font-size:13px;line-height:1.95}.about-copy .text-link{font-size:12px;margin-top:20px}.closing-inner{padding-block:53px 65px}.closing-statement{font-size:34px;line-height:1.5}.closing .eyebrow{font-size:8px;margin-bottom:20px}.back-top{height:36px;width:36px;font-size:20px;bottom:26px}.footer{min-height:135px;gap:15px;flex-wrap:wrap;padding-block:24px}.footer .wordmark{font-size:23px}.footer p{font-size:9px;margin-left:auto}.footer>div{width:100%;justify-content:space-between;font-size:9px}html[lang="en"] h1{font-size:51px;line-height:1.12;max-width:360px}html[lang="en"] .hero-description{font-size:14px}html[lang="en"] h2{font-size:28px;line-height:1.25}html[lang="en"] .inquiry-tabs{gap:20px}html[lang="en"] .inquiry-panel{min-height:248px}}
@media(max-width:800px){.reliability{gap:35px;grid-template-columns:1.1fr 1fr}.reliability-target{padding-left:26px}.reliability h3{font-size:23px}.target-number{font-size:58px}}
@media(max-width:520px){.reliability{grid-template-columns:1fr;gap:28px;margin-top:30px;padding-top:34px}.reliability-target{border-left:0;border-top:1px solid var(--line);padding:26px 0 0}.target-number{font-size:66px}.reliability h3{font-size:24px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}