@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Manrope:wght@400;500;600;650;700;750;800&display=swap');
:root{--ink:#f4f6ff;--muted:#a5aec3;--cyan:#91e5ff;--blue:#a4b8ff;--line:rgba(189,207,255,.15);--dark:#060914;--max:1280px;color-scheme:dark;font-family:'DM Sans',Arial,sans-serif;color:var(--ink);background:var(--dark);font-synthesis:none;scroll-behavior:smooth;scroll-padding-top:108px}
*{box-sizing:border-box}body{margin:0;overflow-x:clip}a{color:inherit}button{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:7px}::selection{background:#9accff;color:#060914}.container{width:min(var(--max),calc(100% - 112px));margin-inline:auto}h1,h2,h3,p,figure{margin-top:0}h1,h2,h3{font-family:Manrope,Arial,sans-serif}.site-header{position:fixed;inset:0 0 auto;z-index:30;border-bottom:1px solid rgba(197,210,255,.11);background:linear-gradient(180deg,rgba(6,9,20,.8),rgba(6,9,20,.14));transition:background .3s,box-shadow .3s}.site-header.is-scrolled{background:rgba(6,9,20,.87);backdrop-filter:blur(18px);box-shadow:0 8px 40px #0002}.header-inner{min-height:104px;display:flex;align-items:center;justify-content:space-between;gap:36px}.wordmark{text-decoration:none;display:flex;flex-direction:column;gap:8px;flex-shrink:0}.brand-name{font-family:Manrope,Arial,sans-serif;letter-spacing:-1.2px;font-size:1.65rem;line-height:1;font-weight:800}.brand-light{font-weight:400;margin-left:7px}.brand-sub{font-size:.875rem;letter-spacing:.65px;font-weight:500;color:#b0bdd5}nav{display:flex;gap:34px;align-items:center}nav a{text-decoration:none;font-size:1rem;font-weight:500;position:relative;padding:16px 0;color:#c9d1e3;transition:color .2s}nav a::after{content:'';position:absolute;bottom:7px;left:0;right:0;height:1px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .25s}nav a:hover,nav a[aria-current]{color:#fff}nav a:hover::after,nav a[aria-current]::after{transform:scaleX(1)}.menu-toggle{display:none;font-size:1rem}.skip-link{position:fixed;top:12px;left:12px;padding:16px;background:#fff;color:#080b16;z-index:100;transform:translateY(-180%)}.skip-link:focus{transform:none}
.hero{position:relative;isolation:isolate;min-height:min(900px,100svh);min-height:820px;display:flex;align-items:center;padding:170px 0 140px;overflow:hidden;background:#040815}.hero-content{position:relative;z-index:3;pointer-events:none}.hero-copy{max-width:850px;pointer-events:auto}.eyebrow{font-size:.875rem;font-weight:550;letter-spacing:2px;line-height:1.6;margin:0 0 28px}.hero .eyebrow{display:flex;align-items:center;gap:13px;color:#9bcde6}.short-rule{width:36px;height:1px;background:var(--cyan);box-shadow:0 0 15px #73d9ff99}h1{font-weight:500;font-size:clamp(4.3rem,7.6vw,7.1rem);line-height:1.12;letter-spacing:-5.8px;margin-bottom:31px;text-shadow:0 3px 40px #0003}h1 em{display:inline-block;font-style:normal;background:linear-gradient(110deg,#a4eeff 3%,#abb9ff 48%,#c9a9ff 92%);background-clip:text;-webkit-background-clip:text;color:transparent}.hero-description{color:#c0cbde;font-size:1.1875rem;line-height:1.85;max-width:540px;margin-bottom:36px}.text-link{display:inline-flex;align-items:center;justify-content:space-between;gap:40px;font-size:1rem;font-weight:550;text-decoration:none;padding:15px 20px;border:1px solid rgba(159,212,255,.4);background:rgba(78,126,166,.09);border-radius:4px;backdrop-filter:blur(12px);transition:border-color .25s,background .25s,transform .25s}.text-link:hover{background:rgba(105,172,231,.17);border-color:#a4e6ff;transform:translateY(-2px)}.text-link span{font-size:1.2rem;color:var(--cyan)}.hero-figure{position:absolute;inset:0;margin:0;z-index:-1}.art-panel{position:absolute;inset:0;background:#050817}.art-panel::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,7,18,.95) 0%,rgba(3,7,18,.88) 24%,rgba(3,7,18,.45) 50%,rgba(3,7,18,.06) 100%),linear-gradient(0deg,#060914 0%,transparent 22%,transparent 78%,rgba(6,9,20,.2) 100%)}.art-panel img{width:100%;height:100%;object-fit:cover;object-position:58% 50%;animation:hero-arrive 1.8s cubic-bezier(.2,.7,.3,1) both}.hero-copy{animation:copy-arrive .9s ease-out both}.hero-figure figcaption{position:absolute;bottom:36px;left:0;right:0;z-index:2;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:.875rem;letter-spacing:1.15px;line-height:1.6;color:#a8b6cd}.art-caption{letter-spacing:0;color:#97a5bb}.affiliation-strip{position:relative;border-block:1px solid var(--line);background:linear-gradient(100deg,#0c1123,#101226 55%,#0a1220)}.affiliation-inner{display:grid;grid-template-columns:1fr 1fr auto;gap:44px;align-items:center;padding-block:30px}.affiliation-inner p{font-size:1rem;line-height:1.6;margin:0;font-weight:500;color:#ccd5e7}.affiliation-inner p+p{border-left:1px solid var(--line);padding-left:44px}.affiliation-cn{font-size:1rem;line-height:1.85;color:#9eacc5;letter-spacing:1px}
.section{padding-block:106px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:60px;margin-bottom:46px}.section-heading .eyebrow{color:var(--cyan);margin-bottom:23px}h2{font-size:clamp(2.2rem,3.7vw,3.25rem);font-weight:500;line-height:1.2;letter-spacing:-2px;margin-bottom:0}.section-intro{max-width:390px;margin:0 0 4px;color:var(--muted);font-size:1.125rem;line-height:1.85}.research-section{position:relative;background:radial-gradient(ellipse at 70% 20%,rgba(57,39,112,.16),transparent 60%),#080c19}.research-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.research-card{border:1px solid rgba(148,174,231,.19);border-radius:10px;overflow:hidden;background:linear-gradient(150deg,#11182b,#0c1120);display:flex;flex-direction:column;transition:transform .4s cubic-bezier(.2,.8,.2,1),border-color .4s,box-shadow .4s;min-width:0}.research-card:hover{transform:translateY(-8px);border-color:rgba(145,229,255,.52);box-shadow:0 20px 60px #0005,0 0 32px #739fff10}.research-image{position:relative;aspect-ratio:1.5;overflow:hidden;background:#070b19}.research-image::after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,21,39,.45),transparent 60%)}.research-image img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .65s cubic-bezier(.2,.6,.2,1)}.research-card:hover .research-image img{transform:scale(1.05)}.research-index{position:absolute;z-index:2;top:18px;left:20px;font-size:.875rem;letter-spacing:1px;color:#e4f9ff;padding:7px 9px;line-height:1;border:1px solid #b4d5ff44;border-radius:3px;background:#070b1b77;backdrop-filter:blur(8px)}.research-card-copy{padding:27px 27px 29px;display:flex;flex-direction:column;flex:1}.research-card h3{font-size:1.55rem;font-weight:500;letter-spacing:-.8px;line-height:1.35;margin-bottom:17px}.research-card-copy>p{font-size:1.125rem;line-height:1.8;color:var(--muted);margin-bottom:26px}.research-card-copy .research-tags{font-size:1rem;line-height:1.7;color:var(--cyan);margin-top:auto;margin-bottom:0;padding-top:18px;border-top:1px solid var(--line)}.image-note{font-size:.875rem;line-height:1.7;color:#8593ac;margin:18px 0 0}.people-section{position:relative}.people-section::before{content:'';position:absolute;width:min(55vw,600px);height:70%;left:-20%;top:20%;z-index:-1;pointer-events:none;background:radial-gradient(ellipse,rgba(62,51,137,.15),transparent 67%)}.pi-card{display:grid;grid-template-columns:220px minmax(0,1fr) 245px;align-items:center;gap:44px;padding:34px;border:1px solid var(--line);border-radius:10px;background:linear-gradient(110deg,rgba(19,28,52,.83),rgba(10,15,29,.7));box-shadow:0 24px 80px #0002}.pi-portrait{height:275px;background:radial-gradient(ellipse at 20% 15%,#35437c55,transparent 65%),linear-gradient(140deg,#151f39,#14162b);border:1px solid #8facdd22;border-radius:7px;display:flex;align-items:center;justify-content:center;flex-direction:column;overflow:hidden;position:relative}.pi-portrait img{display:block;width:100%;height:100%;object-fit:cover}.pi-copy .eyebrow{margin-bottom:16px;font-size:.875rem;color:var(--cyan)}.pi-copy h3{font-size:2rem;font-weight:500;letter-spacing:-1px;line-height:1.4;margin-bottom:13px}.pi-copy h3 span{font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;font-size:1.25rem;letter-spacing:2px;font-weight:400;white-space:nowrap;margin-left:9px;color:#bfcae0}.pi-copy p{font-size:1.125rem;color:var(--muted);line-height:1.8;margin-bottom:19px}.pi-copy p.pi-role{font-size:1rem;line-height:1.7;color:#c5d0e6}.profile-links{display:flex;flex-wrap:wrap;gap:18px}.profile-links a{font-size:1rem;text-decoration:none;border-bottom:1px solid #8299c7;line-height:1.8;color:#c3d4f5;transition:color .2s}.profile-links a:hover{color:#fff}.people-note{border-left:1px solid var(--line);padding-left:30px;align-self:stretch;display:flex;justify-content:center;flex-direction:column}.small-label{display:block;font-size:.875rem;letter-spacing:1.8px;font-weight:500;margin-bottom:20px;color:#95b0d9}.people-note p{font-family:Manrope,Arial,sans-serif;font-size:1.4rem;line-height:1.6;letter-spacing:-.6px;margin-bottom:17px;color:#d9e2f5}.people-note>span:last-child{font-size:1rem;line-height:1.8;color:var(--muted)}
.publications-section{position:relative;border-top:1px solid var(--line);background:radial-gradient(ellipse at 100% 80%,#2c20521c,transparent 60%),#090d1a}.publication{display:grid;grid-template-columns:80px minmax(0,1fr) 36px;gap:28px;padding:36px 18px;border-top:1px solid var(--line);text-decoration:none;transition:background .25s,transform .25s}.publication:last-child{border-bottom:1px solid var(--line)}.publication:hover{background:#15203a66;transform:translateX(4px)}.publication-year{font-size:1.0625rem;line-height:1.8;color:#7fbadb;padding-top:2px}.publication-body{display:block;min-width:0;overflow-wrap:anywhere}.publication-title{display:block;font-family:Manrope,Arial,sans-serif;font-size:1.75rem;font-weight:550;line-height:1.5;letter-spacing:-.3px;margin-bottom:13px;max-width:960px;transition:color .2s}.publication:hover .publication-title{color:var(--cyan)}.publication-authors{display:block;font-size:1.125rem;color:#bdc7dc;line-height:1.75;margin-bottom:7px}.publication .journal{display:block;font-size:1.125rem;line-height:1.75;color:#c4ccff;font-weight:500}.publication-arrow{width:34px;height:34px;border:1px solid #7396cf44;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:var(--cyan);margin-top:2px;transition:background .25s,border-color .25s}.publication:hover .publication-arrow{background:#21446c66;border-color:#a4d8ff77}.contact-section{position:relative;isolation:isolate;overflow:hidden;background:#080c19;padding-block:94px;border-top:1px solid var(--line)}.contact-section::before{content:'';position:absolute;inset:0;z-index:-2;background:url('assets/heterostructure-v2.png') no-repeat 78% 55% / cover;opacity:.37}.contact-section::after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#070c1beF 0%,#070c1bdd 37%,#070c1b88 100%)}.contact-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:100px}.contact-section .eyebrow{color:var(--cyan);margin-bottom:23px}.contact-section h2{font-size:clamp(3rem,5vw,4.4rem);margin-bottom:26px;letter-spacing:-2.5px}.contact-section p{color:#b7c5de;font-size:1.125rem;line-height:1.85;margin-bottom:28px}.email-link{color:#def5ff;text-decoration:none;display:inline-block;padding-bottom:9px;border-bottom:1px solid #83b8da88;font-size:1.65rem;letter-spacing:-.4px;overflow-wrap:anywhere;transition:color .2s}.email-link:hover{color:white}.contact-section address{font-style:normal;border-left:1px solid #bdcbf02a;padding-left:50px;display:flex;flex-direction:column;gap:14px}.contact-section address .small-label{color:var(--cyan);margin-bottom:8px}.contact-section address strong{font-size:1.1875rem;font-weight:500;line-height:1.65}.contact-section address>span:not(.small-label){font-size:1rem;line-height:1.7;color:#b2c1db}.institution-links{display:flex;gap:24px;margin-top:4px}.institution-links a{display:inline-block;font-size:1rem;text-underline-offset:6px;color:#d3e1f3;padding-block:6px}.site-footer{background:#050812;border-top:1px solid var(--line);color:#889ab6}.footer-inner{min-height:94px;display:flex;gap:30px;align-items:center}.footer-inner a{font-size:.875rem;text-decoration:none}.footer-inner .footer-brand{color:#e3ecff;font-weight:650;letter-spacing:1.4px}.footer-inner p{font-size:.875rem;margin:0}.footer-inner>a:last-child{margin-left:auto}.footer-inner>a:last-child span{padding-left:15px}.reveal-ready{transition:opacity .7s ease,translate .7s ease}.reveal-ready:not(.is-visible){opacity:0;translate:0 24px}.research-card:nth-child(2){transition-delay:.04s}.research-card:nth-child(3){transition-delay:.08s}@keyframes hero-arrive{from{transform:scale(1.045);opacity:.65}to{transform:scale(1);opacity:1}}@keyframes copy-arrive{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}

.student-groups{display:grid;gap:42px;margin-top:48px}
.student-group h3{font-size:1.5rem;font-weight:500;line-height:1.4;letter-spacing:-.4px;margin-bottom:22px;color:var(--cyan)}
.student-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin:0;padding:0;list-style:none}
.student-card{min-width:0;overflow:hidden;border:1px solid var(--line);border-radius:8px;background:linear-gradient(120deg,rgba(19,28,52,.83),rgba(10,15,29,.7))}
.member-portrait{aspect-ratio:4/5;margin:0;overflow:hidden;background:#141d30}
.member-portrait img{display:block;width:100%;height:100%;object-fit:cover}
.member-name{display:flex;align-items:baseline;flex-wrap:wrap;gap:5px 12px;margin:0;padding:20px 18px 22px;font-family:Manrope,Arial,sans-serif;font-size:1.3125rem;font-weight:500;line-height:1.5;letter-spacing:-.3px}
.member-name-en{overflow-wrap:anywhere}
.member-name-cn{font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;font-size:1.125rem;font-weight:400;letter-spacing:1px;white-space:nowrap;color:#c3d4ee}
@media(max-width:1150px){.student-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}}
@media(max-width:780px){.student-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.student-groups{gap:32px;margin-top:34px}.student-group h3{font-size:1.375rem;margin-bottom:18px}.student-grid{gap:16px}.member-name{padding:16px 14px 18px}}
@media(max-width:440px){.student-grid{grid-template-columns:minmax(0,340px);justify-content:center}.member-name{padding:20px}}
@media(min-width:1600px){.hero{min-height:900px}.container{width:min(1400px,calc(100% - 160px))}h1{font-size:7.6rem}.hero-copy{max-width:1020px}.research-image{aspect-ratio:1.6}}
@media(max-width:1150px){.container{width:calc(100% - 72px)}.hero{min-height:770px}.hero-copy{max-width:720px}h1{font-size:clamp(4.2rem,8.5vw,6.3rem);letter-spacing:-4.5px}.research-grid{gap:18px}.research-card-copy{padding:23px 22px 25px}.research-card h3{font-size:1.35rem}.pi-card{grid-template-columns:190px minmax(0,1fr);gap:36px}.people-note{display:none}.contact-grid{gap:60px}.section-heading{gap:44px}.section-intro{max-width:320px}.header-inner{gap:26px}nav{gap:25px}}
@media(max-width:780px){:root{scroll-padding-top:100px}.container{width:calc(100% - 40px)}.header-inner{min-height:92px;gap:18px}.brand-name{font-size:1.45rem}.brand-sub{font-size:.875rem;line-height:1.5;letter-spacing:.1px;max-width:195px}.site-header{background:#060914b8;backdrop-filter:blur(12px)}.menu-toggle{display:flex;gap:12px;align-items:center;padding:14px 0;border:0;background:none;color:var(--ink);font-size:1rem}.menu-toggle span{font-size:1.5rem;line-height:1}.site-header nav{display:none;position:absolute;top:100%;left:0;width:100%;padding:12px 20px 20px;background:rgba(8,12,27,.98);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}.site-header nav.is-open{display:flex}.site-header nav a{padding:15px 0;font-size:1rem}.site-header nav a::after{bottom:6px;right:auto;width:24px}.hero{min-height:800px;align-items:flex-start;padding:155px 0 105px}.hero-copy{max-width:610px}h1{font-size:clamp(3.5rem,9vw,5rem);letter-spacing:-3.2px;line-height:1.13;margin-bottom:25px}h1 em{max-width:600px}.hero-description{font-size:1.125rem;line-height:1.85;max-width:490px;margin-bottom:28px}.hero .eyebrow{margin-bottom:26px}.art-panel img{object-position:67% 70%;height:100%;width:100%}.art-panel::after{background:linear-gradient(180deg,rgba(3,7,18,.3) 0%,rgba(3,7,18,.25) 50%,rgba(3,7,18,.04) 80%,#060914 100%),linear-gradient(90deg,rgba(3,7,18,.89),rgba(3,7,18,.5) 75%,rgba(3,7,18,.26))}.hero-figure figcaption{bottom:26px;gap:8px;flex-direction:column;font-size:.875rem;letter-spacing:.75px}.affiliation-inner{grid-template-columns:1fr 1fr;padding-block:25px;gap:20px}.affiliation-inner p{font-size:1rem;line-height:1.7}.affiliation-inner p+p{padding-left:20px}.affiliation-cn{display:none}.section{padding-block:64px}.section-heading{display:block;margin-bottom:33px}.section-heading .eyebrow{margin-bottom:19px}h2{font-size:2.35rem;letter-spacing:-1.4px}.section-intro{margin-top:24px;font-size:1.0625rem;line-height:1.8;max-width:500px}.research-grid{grid-template-columns:1fr;gap:26px}.research-image{aspect-ratio:1.8}.research-card-copy{padding:25px 25px 28px}.research-card h3{font-size:1.55rem;margin-bottom:16px}.research-card h3 br{display:none}.research-card-copy>p{font-size:1.0625rem;line-height:1.85;margin-bottom:23px;max-width:540px}.research-card-copy .research-tags{font-size:1rem}.research-index{top:19px;left:20px}.research-card:hover{transform:none}.pi-card{grid-template-columns:1fr;gap:28px;padding:25px}.pi-portrait{height:auto;aspect-ratio:4/5;width:min(100%,280px);justify-self:center}.pi-copy p,.contact-section p{font-size:1.0625rem}.pi-copy h3{font-size:1.8rem}.pi-copy h3 span{font-size:1.2rem}.pi-copy p.pi-role{font-size:1rem}.publication{grid-template-columns:minmax(0,1fr) 30px;gap:12px 15px;padding:30px 0}.publication-year{grid-column:1/-1;font-size:1rem}.publication-title{font-size:1.5rem;line-height:1.5;letter-spacing:-.2px}.publication-authors,.publication .journal{font-size:1.0625rem}.publication-arrow{width:29px;height:29px;font-size:1.1rem}.publication:hover{transform:none}.contact-section{padding-block:60px}.contact-grid{grid-template-columns:1fr;gap:40px}.contact-section h2{font-size:3rem}.contact-section address{border-left:0;border-top:1px solid #bdcbf02a;padding:32px 0 0}.email-link{font-size:1.35rem}.contact-section::before{background-position:65% center}.desktop-break{display:none}.footer-inner{padding-block:28px;flex-wrap:wrap;gap:18px}.footer-inner p{flex-basis:100%;order:3}.footer-inner>a:last-child{margin-left:auto}.research-card:nth-child(n){transition-delay:0s}}
@media(max-width:380px){h1{font-size:3.2rem;letter-spacing:-2.6px}.hero{min-height:780px}.hero .eyebrow{letter-spacing:1.2px}.brand-sub{max-width:180px}.email-link{font-size:1.2rem}.pi-card{padding:20px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.reveal-ready:not(.is-visible){opacity:1;translate:none}.research-card:hover,.publication:hover,.text-link:hover{transform:none}}