:root{--bg:#fafaf6;--ink:#123d38;--muted:#61736b;--line:#dce4db;--accent:#167957;--panel:#eef2e9}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.8 "PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:6px}button{font:inherit;cursor:pointer}header,main,footer{max-width:1240px;margin:auto}header{display:flex;align-items:center;gap:30px;padding:24px 42px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;margin-right:auto}.brand img{width:48px;height:48px;object-fit:cover;border-radius:50%}.brand strong{font-size:23px;line-height:1.2;letter-spacing:-.7px}.brand strong span{display:block;font-size:8px;font-weight:500;letter-spacing:1.1px;margin-top:6px}nav{display:flex;gap:24px;font-size:14px}.controls{display:flex;gap:4px}.controls button{border:0;background:none;color:var(--muted);font-size:12px;padding:6px 8px;border-radius:4px}.controls button[aria-pressed=true]{background:var(--ink);color:var(--bg)}#theme{font-size:20px;line-height:1}main{padding:0 42px}.hero{display:grid;grid-template-columns:1.4fr 1fr;align-items:center;gap:60px;padding:92px 0 74px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:600;color:var(--accent);margin:0 0 22px}h1{font-size:clamp(38px,4.6vw,60px);line-height:1.4;letter-spacing:-1.5px;margin:0 0 26px;font-weight:600}html[lang=en] h1{font-size:64px;line-height:1.12;letter-spacing:-3px}.lead{max-width:560px;color:var(--muted);font-size:17px;line-height:2;margin:0 0 30px}.actions{display:flex;align-items:center;gap:30px;font-size:14px}.button{display:inline-block;padding:12px 22px;border:1px solid var(--ink);border-radius:3px;background:var(--ink);color:var(--bg)}.button:hover{background:var(--accent);color:var(--bg);border-color:var(--accent)}.hero-mark{margin:0;position:relative;border:1px solid var(--line);padding:22px;background:#fffdf5;border-radius:50% 50% 4px 4px}.hero-mark img{display:block;width:100%;border-radius:50%}.hero-mark figcaption{text-align:center;font-size:9px;letter-spacing:2px;color:#456d59;margin:18px 0 8px}.discipline-strip{display:flex;justify-content:space-between;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;font-size:10px;letter-spacing:1.6px;color:var(--muted)}.overview{display:grid;grid-template-columns:1.1fr 1fr;gap:80px;padding:78px 0 40px;align-items:end}h2{font-size:32px;font-weight:500;line-height:1.6;letter-spacing:-.5px;margin:0}.overview>p{font-size:16px;color:var(--muted);line-height:2;margin:0}.research-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;padding-bottom:78px}.research-grid article{border-top:1px solid var(--line);padding-top:24px}.index{font-size:12px;color:var(--accent)}h3{font-size:21px;font-weight:500;margin:18px 0 8px}.research-grid p{color:var(--muted);font-size:14px;margin:0}.contact{padding:38px 40px;background:var(--panel);display:flex;align-items:center;justify-content:space-between;gap:35px;margin-bottom:55px}.contact .eyebrow{margin-bottom:14px}.contact p{color:var(--muted);font-size:14px}.contact a{font-size:14px;text-decoration:underline;text-underline-offset:5px}footer{padding:25px 42px 35px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}.placeholder{min-height:65vh;padding:100px 0}.skip{position:absolute;top:-100px}.skip:focus{top:0;background:var(--bg);padding:10px}html[data-theme=dark]{color-scheme:dark;--bg:#11231f;--ink:#e3ede5;--muted:#a6b9ac;--line:#32473d;--accent:#94cdb0;--panel:#1c332b}html[data-theme=dark] .hero-mark{border-color:#45634f}@media(max-width:1000px){header{flex-wrap:wrap;gap:16px}nav{order:3;width:100%;justify-content:center}.hero{gap:35px;padding-top:65px}html[lang=en] h1{font-size:48px}.overview{gap:35px}}@media(max-width:650px){header,main,footer{padding-left:22px;padding-right:22px}.brand strong{font-size:21px}.brand strong span{font-size:7px}nav{justify-content:space-between;gap:10px;font-size:13px}.hero{grid-template-columns:1fr;gap:35px;padding:48px 0}.hero-mark{max-width:285px;justify-self:center;padding:15px}.hero h1{font-size:36px;letter-spacing:0}html[lang=en] .hero h1{font-size:45px}.lead{font-size:15px}.eyebrow{font-size:9px;letter-spacing:1.5px}.discipline-strip{flex-wrap:wrap;gap:8px 20px;font-size:8px;letter-spacing:.8px}.overview{grid-template-columns:1fr;gap:22px;padding-top:48px}h2{font-size:27px}.research-grid{grid-template-columns:1fr;gap:26px;padding-bottom:45px}.research-grid article{padding-top:15px}h3{margin-top:10px}.contact{padding:26px;display:block}.contact>div+div{margin-top:22px}footer{font-size:10px;gap:20px}.placeholder{padding:60px 0}.placeholder h1{font-size:38px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Keep all navigation entries reachable on narrow screens. */
nav{flex-wrap:wrap;row-gap:10px}@media(max-width:650px){nav{justify-content:flex-start;column-gap:22px;row-gap:10px}}