:root{--green:#194825;--green2:#2e6a39;--ink:#1f2621;--muted:#677067;--paper:#faf9f5;--line:#dfe4dc;--warm:#f4f1e9;--blue:#dcecef;--beige:#eee9dd;--container:min(1240px,calc(100% - 48px))}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:"Noto Sans JP",sans-serif;line-height:1.8}a{color:inherit}.container{width:var(--container);margin:auto}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip-link{position:fixed;top:-60px;left:12px;z-index:2000;background:#fff;padding:8px 14px}.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);border-bottom:1px solid #eee;backdrop-filter:blur(10px)}.header-inner{max-width:1380px;margin:auto;padding:14px 28px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;align-items:center;text-decoration:none;color:#173d20}.brand-logo{width:48px;height:48px;margin-right:12px}.brand-copy{display:flex;flex-direction:column;line-height:1.2}.brand-copy .university{font-size:12px;color:#333}.brand-copy strong{font-family:"Noto Serif JP",serif;font-size:21px;font-weight:600}.brand-copy small{font-family:serif;font-size:12px;color:#333;letter-spacing:.04em}.global-nav{display:flex;align-items:center;gap:34px}.global-nav a{text-decoration:none;font-size:14px;font-weight:600}.global-nav a:hover{color:var(--green2)}.contact-link{padding:13px 18px;background:var(--green);color:#fff!important}.menu-button{display:none;background:transparent;border:0;padding:8px}.menu-button>span:not(.sr-only){display:block;width:28px;height:2px;background:#222;margin:6px}
.hero{position:relative;height:min(700px,74vh);min-height:560px;color:#fff;overflow:hidden}.hero-image{position:absolute;inset:0;background:url("../images/main-visual.jpg") center 52%/cover no-repeat;transform:scale(1.01)}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.72) 0%,rgba(0,0,0,.48) 38%,rgba(0,0,0,.12) 70%),linear-gradient(180deg,rgba(0,0,0,.05),rgba(0,0,0,.22))}.hero-content{position:relative;z-index:2;width:var(--container);margin:auto;padding-top:120px}.hero-label{font-size:12px;letter-spacing:.18em;margin:0 0 20px;color:rgba(255,255,255,.8)}.hero h1{font-family:"Noto Serif JP",serif;font-size:clamp(45px,5vw,74px);font-weight:600;line-height:1.42;margin:0 0 18px;letter-spacing:.04em}.hero-content>p:not(.hero-label){font-size:17px;font-weight:600;letter-spacing:.03em}.primary-button{display:inline-flex;align-items:center;gap:28px;margin-top:22px;padding:15px 25px;background:var(--green);color:#fff;text-decoration:none;font-weight:600}.primary-button:hover{background:#0f3519}.primary-button.small{padding:12px 18px;gap:14px}.scroll-cue{position:absolute;z-index:2;left:50%;bottom:0;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;color:#fff;text-decoration:none;font-size:10px;letter-spacing:.1em}.scroll-cue i{height:55px;border-left:1px solid rgba(255,255,255,.8);margin-top:8px}
.section{padding:100px 0}.section-label{color:var(--green2);font-size:11px;letter-spacing:.2em;font-weight:700;margin:0 0 6px}.section h2{font-family:"Noto Serif JP",serif;font-size:clamp(32px,4vw,50px);font-weight:600;line-height:1.35;margin:0}.center-heading{text-align:center;margin-bottom:42px}.center-heading h2:after,.about-copy h2:after{content:"";display:block;width:52px;height:2px;background:var(--green2);margin:16px auto 0}.about-copy h2:after{margin-left:0}
.about{background:var(--paper)}.about-grid{display:grid;grid-template-columns:.8fr 1.7fr;gap:70px;align-items:center}.about-copy p:not(.section-label){margin:26px 0;color:#343b36}.text-button{display:inline-flex;gap:28px;text-decoration:none;border:1px solid #a9b3aa;padding:10px 20px;font-size:14px}.lifecycle-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.cycle-item{text-align:center;flex:1;min-width:105px}.cycle-item svg{width:56px;height:56px;fill:none;stroke:var(--green);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.cycle-item strong{display:block;font-size:14px;margin-top:6px}.cycle-item small{display:block;color:var(--muted);font-size:11px}.cycle-arrow{color:var(--green);font-size:30px;line-height:60px}.impact-message{text-align:center;margin-top:28px;padding:18px;background:linear-gradient(90deg,#eef3ec,#f4f2e9);font-family:"Noto Serif JP",serif;font-size:17px;color:#223d27}
.research{background:#fff}.research-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.research-card{display:grid;grid-template-columns:105px 1fr;gap:20px;padding:30px;background:#f7faf6;border:1px solid #edf0eb;min-height:270px}.research-card:nth-child(2){background:#f1f7f8}.research-card:nth-child(3){background:#f8f5ee}.research-icon{width:90px;height:90px;border-radius:50%;display:grid;place-items:center;background:#fff}.research-icon svg{width:55px;height:55px;fill:none;stroke:#265f30;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.research-icon.blue svg{stroke:#2a6a78}.research-icon.beige svg{stroke:#4a453b}.research-card span{font-size:12px;color:var(--green2);font-weight:700}.research-card h3{font-family:"Noto Serif JP",serif;font-size:21px;line-height:1.5;margin:4px 0 10px}.research-card p{font-size:14px;color:#4c554e;margin:0 0 16px}.research-card a{text-decoration:none;display:inline-flex;gap:24px;border:1px solid #aeb7af;padding:8px 16px;font-size:13px}
.projects{background:var(--warm)}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.project-card{background:#fff;border:1px solid #e5e2db}.project-image{height:230px;background-image:url("../images/main-visual.jpg");background-size:165%;background-repeat:no-repeat}.crop-a{background-position:7% 78%}.crop-b{background-position:48% 78%}.crop-c{background-position:91% 52%}.project-body{padding:24px}.project-body span{font-size:10px;color:var(--green2);letter-spacing:.14em;font-weight:700}.project-body h3{font-family:"Noto Serif JP",serif;font-size:21px;margin:5px 0}.project-body p{font-size:14px;color:var(--muted);margin:0 0 18px}.project-body a{text-decoration:none;border-bottom:1px solid #a7afa8;font-size:13px}
.news{background:#fff}.news-grid{display:grid;grid-template-columns:.55fr 1.45fr;gap:80px}.news-list{border-top:1px solid var(--line)}.news-list>a{display:grid;grid-template-columns:120px 72px 1fr;align-items:center;gap:18px;padding:20px 0;border-bottom:1px solid var(--line);text-decoration:none}.news-list time{font-size:13px;color:#687069}.news-list span{font-size:11px;background:#eef4ee;color:var(--green);padding:4px 9px;text-align:center}.news-list p{margin:0;font-weight:600}
.access{background:#f5f6f3}.access-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:center}.access-copy h3{font-size:18px;margin:28px 0 8px}.access-copy p{color:#4f5851}.map-wrap{height:390px;border:8px solid #fff;box-shadow:0 14px 38px rgba(24,49,30,.12)}.map-wrap iframe{width:100%;height:100%;border:0}
.site-footer{background:#12331c;color:#fff;padding:52px 0 30px}.footer-grid{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:start}.footer-brand{display:flex;flex-direction:column}.footer-brand strong{font-family:"Noto Serif JP",serif;font-size:20px}.footer-brand span{font-size:13px;color:rgba(255,255,255,.65)}.site-footer nav{display:flex;gap:22px;flex-wrap:wrap}.site-footer nav a{text-decoration:none;color:rgba(255,255,255,.78);font-size:13px}.site-footer small{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.16);padding-top:22px;color:rgba(255,255,255,.55)}
.reveal{opacity:0;transform:translateY(20px);transition:opacity .65s ease,transform .65s ease}.reveal.is-visible{opacity:1;transform:none}
@media(max-width:1040px){.global-nav{gap:18px}.global-nav a{font-size:13px}.research-card{grid-template-columns:1fr}.research-icon{width:72px;height:72px}.project-image{height:190px}}
@media(max-width:840px){.menu-button{display:block}.global-nav{display:none;position:absolute;top:77px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 24px 24px;border-bottom:1px solid #ddd}.global-nav.open{display:flex}.global-nav a{padding:10px 4px}.contact-link{text-align:center}.hero{min-height:610px;height:70vh}.hero-content{padding-top:100px}.hero h1{font-size:48px}.about-grid,.access-grid,.news-grid{grid-template-columns:1fr}.lifecycle-row{overflow-x:auto;padding-bottom:12px;justify-content:flex-start}.cycle-item{min-width:130px}.research-grid,.project-grid{grid-template-columns:1fr}.research-card{grid-template-columns:90px 1fr}.news-grid{gap:30px}.footer-grid{grid-template-columns:1fr}}
@media(max-width:560px){:root{--container:min(100% - 28px,1240px)}.header-inner{padding:12px 14px}.brand-logo{width:38px}.brand-copy strong{font-size:15px}.brand-copy small,.brand-copy .university{font-size:9px}.hero{min-height:590px}.hero-image{background-position:58% center}.hero-content{padding-top:86px}.hero h1{font-size:38px}.hero-content>p:not(.hero-label){font-size:14px}.section{padding:72px 0}.research-card{grid-template-columns:1fr}.news-list>a{grid-template-columns:100px 58px 1fr;gap:10px}.news-list p{grid-column:1/-1}.site-footer nav{flex-direction:column;gap:10px}}