:root{--bg:#fff;--surface:#f6f8fb;--ink:#161c28;--muted:#626c7a;--accent:#0075f6;--accent-soft:#eaf3ff;--line:#e4e9f0;--max:1110px;--shadow:0 12px 40px #24385c0a;--mx:0px;--my:0px;color-scheme:light}
:root[data-theme=dark]{--bg:#161b24;--surface:#202735;--ink:#f4f6fa;--muted:#a7b3c6;--accent:#72b4ff;--accent-soft:#22344e;--line:#334055;--shadow:0 12px 40px #0002;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--bg);color:var(--ink);font-family:Poppins,"Microsoft YaHei",Arial,sans-serif;line-height:1.7;transition:background .25s,color .25s}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer;color:inherit}img{max-width:100%;display:block}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}::selection{background:var(--accent);color:#fff}.wrap{width:min(var(--max),calc(100% - 80px));margin-inline:auto}.skip-link{position:fixed;left:20px;top:-80px;background:var(--ink);color:var(--bg);padding:12px 20px;z-index:100}.skip-link:focus{top:14px}.mono,.year,.kind,.kicker,.token-date{font-family:"DM Mono",monospace}
.topbar{position:sticky;top:0;z-index:30;background:var(--bg);box-shadow:0 2px 9px #263e6b08}.nav{height:78px;display:flex;align-items:center;gap:24px}.brand{font-weight:800;letter-spacing:-1px;font-size:24px;line-height:1}.brand span{color:var(--accent)}.nav-links{margin-left:auto;display:flex;gap:24px;align-items:center}.nav-links a{font-size:13px;position:relative;white-space:nowrap;transition:color .2s}.nav-links a:after{content:"";height:2px;position:absolute;bottom:-8px;left:0;right:100%;background:var(--accent);transition:right .25s}.nav-links a:hover,.nav-links a.active{color:var(--accent)}.nav-links a:hover:after,.nav-links a.active:after{right:0}.nav-actions{display:flex;align-items:center;gap:12px}.lang,.theme-toggle,.menu-toggle{border:0;background:transparent;padding:8px;font-size:12px}.lang{min-width:40px}.theme-toggle{width:32px;height:32px;border:1px solid var(--line);border-radius:50%;padding:0;font-size:20px;line-height:1}.theme-toggle:hover{color:var(--accent);border-color:var(--accent)}.menu-toggle{display:none}.reading-progress{height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left}
.hero{position:relative;min-height:660px;display:grid;grid-template-columns:1.03fr 1fr;align-items:center;padding:45px 0 35px;isolation:isolate}.hero-copy{position:relative;z-index:3;max-width:570px;padding:15px 0 25px}.eyebrow{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--muted);margin-bottom:30px}.status-dot{height:6px;width:6px;border-radius:50%;background:var(--accent)}.hello{font-size:12px;font-weight:600;letter-spacing:2px;margin:0 0 12px}h1{font-size:clamp(52px,5.4vw,76px);line-height:1.08;font-weight:750;letter-spacing:-3px;color:var(--accent);margin:0 0 20px}.name-dot{color:var(--ink)}.hero-subtitle{font-size:32px;line-height:1.3;font-weight:650;letter-spacing:-1px;margin:0 0 24px}.lede{font-size:14px;max-width:420px;line-height:1.9;color:var(--muted);margin:0 0 28px}.hero-actions{display:flex;align-items:center;gap:25px}.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:25px;padding:12px 24px;font-size:12px;font-weight:500;border:1px solid var(--accent);border-radius:3px;overflow:hidden;transition:background .2s,transform .2s,color .2s}.btn:hover{transform:translateY(-2px)}.btn.primary{background:var(--accent);color:#fff}.btn.ghost{color:var(--accent)}.text-link{font-size:12px;color:var(--accent)}.hero-meta{display:flex;gap:18px;flex-wrap:wrap;font-size:10px;margin-top:32px;color:var(--muted)}
.hero-visual{position:relative;margin-left:-42px;width:calc(100% + 42px);z-index:1}.portrait-stage{position:relative;height:570px;background:var(--accent-soft);overflow:clip;isolation:isolate}.portrait-stage:before{content:"";position:absolute;inset:0 0 0 65%;background:#0075f6;z-index:-1}.flow-field{position:absolute;inset:0;width:100%;height:100%;z-index:1}.portrait-guide{position:absolute;inset:70px 38px 70px 60px;border:1px solid #0075f622;border-radius:50%;transform:rotate(-20deg)}.portrait-watermark{position:absolute;left:20px;top:20px;font-weight:800;font-size:180px;line-height:1;letter-spacing:-12px;color:#0075f60a;z-index:-1}.portrait-images{position:absolute;inset:25px 0 0 30px;transform:translate(var(--mx),var(--my));transition:transform .25s ease;z-index:2}.portrait{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center bottom;opacity:0;transform:translateY(10px) scale(.98);transition:opacity .45s,transform .7s}.portrait.is-active{opacity:1;transform:translateY(0) scale(1)}.portrait-caption{position:absolute;left:26px;bottom:22px;font:9px "DM Mono",monospace;color:#315985;letter-spacing:2px;z-index:4}.avatar-toggle{position:absolute;right:19px;bottom:18px;display:flex;background:var(--bg);padding:4px;border:1px solid var(--line);border-radius:30px;z-index:5;box-shadow:var(--shadow)}.avatar-toggle button{padding:7px 16px;border:0;background:transparent;font-size:11px;border-radius:22px;color:var(--muted)}.avatar-toggle button[aria-pressed=true]{background:var(--accent);color:#fff}
.hero-lower{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding:25px 0 38px;border-bottom:1px solid var(--line);align-items:center}.hero-lower-note{font-size:12px;color:var(--muted);max-width:370px;margin:0}.token-block{display:flex;align-items:center;gap:22px}.token-value{color:var(--accent);font-size:42px;font-weight:650;letter-spacing:-2px;line-height:1}.token-label{font-size:12px;margin:0 0 3px}.token-date{font-size:8px;letter-spacing:.6px;color:var(--muted)}.token-details{font-size:9px;color:var(--muted)}.token-details summary{cursor:pointer;width:fit-content}.token-details p{font-size:10px;max-width:330px;line-height:1.7;margin-bottom:0}
.content-section{padding:90px 0}.section-head{display:flex;flex-direction:column;text-align:center;align-items:center;margin-bottom:52px}.kicker{font-size:10px;letter-spacing:2px;text-transform:uppercase;font-weight:500}.section-head h2{font-size:40px;line-height:1.3;letter-spacing:-1.2px;font-weight:650;margin:14px 0 20px}.section-note{max-width:670px;font-size:14px;color:var(--muted);margin:0;line-height:1.8}.education-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.education-item{display:grid;grid-template-columns:66px 1fr;gap:22px;padding:30px;background:var(--surface);border-radius:8px;border:1px solid var(--line);box-shadow:var(--shadow);align-items:start;transition:transform .25s}.education-item:hover{transform:translateY(-4px)}.school-mark{display:flex;align-items:center;justify-content:center;width:66px;height:66px;background:var(--bg);font-size:14px;font-weight:750;border-radius:50%;color:#9c2036;border:1px solid var(--line)}.education-item:nth-child(2) .school-mark{color:#be2026}.education-item h3{font-size:17px;line-height:1.5;margin:0 0 7px;font-weight:650}.education-item p{font-size:10px;color:var(--muted);margin:0}.education-item .degree{font-size:13px;color:var(--ink);margin:15px 0 4px}.year{font-size:10px;color:var(--muted)}
.video-band{padding:0 0 50px}.video-shell{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:var(--shadow)}.video-copy{padding:38px;align-self:center}.video-copy h2{font-size:28px;line-height:1.4;letter-spacing:-.8px;margin:14px 0}.video-copy p{font-size:12px;color:var(--muted);margin:0}.video-frame{background:var(--accent-soft);min-height:280px;display:grid;place-items:center}.video-placeholder{display:flex;align-items:center;flex-direction:column;gap:20px}.playmark{width:60px;height:60px;border:1px solid var(--accent);border-radius:50%;display:grid;place-items:center;color:var(--accent);font-size:17px;padding-left:4px}.video-placeholder small{font-size:9px;color:var(--muted);letter-spacing:1.5px}.intro-video,.intro-embed{width:100%;height:100%;min-height:280px;border:0;object-fit:contain}[hidden]{display:none!important}
.stats{display:grid;grid-template-columns:repeat(4,1fr);margin-bottom:62px;text-align:center}.stat{padding:10px 20px;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat strong{display:block;color:var(--accent);font-size:32px;font-weight:600;letter-spacing:-1px}.stat span{color:var(--muted);font-size:10px}.timeline{position:relative}.timeline:before{content:"";position:absolute;width:2px;top:20px;bottom:20px;background:var(--accent-soft);left:50%;transform:translateX(-50%)}.experience{position:relative;display:grid;grid-template-columns:1fr 1fr;column-gap:110px;margin-bottom:45px;align-items:start}.experience .year{grid-column:2;grid-row:1;padding:28px 0;color:var(--muted);font-size:12px;letter-spacing:1px}.experience>div:last-child{grid-column:1;grid-row:1;background:var(--surface);padding:27px;border-radius:7px;box-shadow:var(--shadow)}.experience>div:last-child:after{content:"";position:absolute;top:30px;left:calc(50% - 55px);width:15px;height:15px;background:var(--surface);transform:translateX(-8px) rotate(45deg)}.timeline-node{position:absolute;left:50%;top:15px;transform:translateX(-50%);width:54px;height:54px;display:grid;place-items:center;border-radius:50%;border:5px solid var(--bg);background:var(--accent-soft);font-size:12px;font-weight:700;color:var(--accent);z-index:2}.experience:nth-child(even)>div:last-child{grid-column:2}.experience:nth-child(even) .year{grid-column:1;text-align:right}.experience:nth-child(even)>div:last-child:after{left:calc(50% + 55px)}.experience h3{color:var(--accent);font-size:18px;font-weight:600;line-height:1.4;margin:0 0 7px}.org{font-size:12px;font-weight:500}.experience ul{font-size:12px;color:var(--muted);padding-left:17px;margin:20px 0}.experience li+li{margin-top:13px}.experience li::marker{color:var(--accent)}.tags{display:flex;gap:6px;flex-wrap:wrap}.tag{font-size:9px;padding:4px 8px;border:1px solid var(--line);border-radius:3px;color:var(--muted)}
#projects{background:var(--surface)}.projects{display:grid;grid-template-columns:1fr 1fr;gap:36px 30px;align-items:start}.project{background:var(--bg);border-radius:8px;overflow:hidden;box-shadow:var(--shadow)}.project-art{display:block;position:relative;overflow:hidden}.project-art img{width:100%;height:auto;transition:transform .5s}.project-overlay{position:absolute;inset:0;display:grid;place-items:center;background:#0075f6dd;color:#fff;font-size:16px;opacity:0;transition:opacity .3s}.project-art:hover .project-overlay,.project-art:focus-visible .project-overlay{opacity:1}.project-art:hover img{transform:scale(1.04)}.project-body{padding:27px 29px}.project-top{display:flex;justify-content:space-between;gap:16px;align-items:start}.kind{font-size:8px;letter-spacing:.4px;color:var(--muted);text-transform:uppercase}.project h3{font-size:25px;font-weight:650;line-height:1.3;letter-spacing:-.7px;margin:9px 0 16px}.project-index{font:11px "DM Mono",monospace;color:var(--accent);padding-top:5px}.project p{font-size:12px;color:var(--muted);margin:0 0 18px;line-height:1.9}.project-details{margin:0 0 22px;font-size:11px}.project-details summary{color:var(--accent);cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--line)}.project-details summary:after{content:"+";font-size:18px}.project-details[open] summary:after{content:"−"}.project-details>p{padding-top:16px}.project-metric{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:4px 0 18px}.metric strong{font-size:17px;font-weight:600;color:var(--accent);display:block}.metric span{font-size:9px;color:var(--muted);display:block}
.toolkit>div:last-child{display:grid;grid-template-columns:1fr 1fr;gap:32px 45px}.skill-group{border-bottom:4px solid var(--accent);padding:0 0 23px}.skill-group label{font-size:18px;font-weight:550;display:block;margin-bottom:18px}.skill-group .tags{gap:8px}.skill-group .tag{font-size:11px;border:0;background:var(--surface);padding:7px 12px;color:var(--muted)}.interest-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}.interest{min-height:150px;padding:25px 18px;text-align:center;background:var(--surface);border-radius:6px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:20px;transition:background .3s,transform .3s}.interest:hover{background:var(--accent-soft);transform:translateY(-5px)}.interest i{font-style:normal;font:20px "DM Mono",monospace;color:var(--accent)}.interest span{font-size:12px}#interests{padding-top:0}.contact-box{text-align:center}.contact-box h2{font-size:40px;letter-spacing:-1.2px;font-weight:650;line-height:1.4;margin:16px auto 20px;max-width:760px}.contact-box p{font-size:13px;color:var(--muted)}.contact-links{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:30px}.email-address{width:100%;font-size:15px;color:var(--accent);margin-bottom:12px}footer{padding:27px 0;border-top:1px solid var(--line);font-size:10px;color:var(--muted)}.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-links{display:flex;gap:24px}.back-top{position:fixed;bottom:22px;right:22px;background:var(--accent);color:#fff;width:40px;height:40px;display:grid;place-items:center;border-radius:50%;font-size:20px;z-index:20;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .2s,transform .2s,visibility .2s}.back-top.is-visible{opacity:1;visibility:visible;transform:none}
.reveal{opacity:1}.motion-enabled .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s,transform .8s cubic-bezier(.22,1,.36,1)}.motion-enabled .reveal.visible{opacity:1;transform:none}.click-wave{position:absolute;width:12px;height:12px;border-radius:50%;background:currentColor;pointer-events:none;animation:click-wave .65s ease-out forwards;opacity:.3}@keyframes click-wave{to{transform:scale(28);opacity:0}}
@media(max-width:1100px){.nav-links{gap:16px}.nav{gap:18px}.hero-subtitle{font-size:28px}.hero-visual{margin-left:0;width:100%}.portrait-stage{height:535px}.experience{column-gap:90px}.experience>div:last-child:after{left:calc(50% - 45px)}.experience:nth-child(even)>div:last-child:after{left:calc(50% + 45px)}.education-item{padding:25px 20px;gap:15px}.education-item h3{font-size:15px}}
@media(max-width:900px){.wrap{width:calc(100% - 48px)}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:78px;left:0;right:0;padding:24px;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;align-items:start;gap:25px}.nav-links.is-open{display:flex}.nav-actions{margin-left:auto}.hero{min-height:620px}.hero h1{font-size:53px}.hero-subtitle{font-size:26px}.portrait-stage{height:500px}.hero-copy{padding-right:22px}.lede{font-size:12px}.hero-meta{font-size:9px;gap:8px}.education-grid{gap:20px}.education-item{grid-template-columns:1fr}.video-copy{padding:28px}.experience ul{font-size:11px}.project-body{padding:23px}.project h3{font-size:22px}}
@media(max-width:600px){html{scroll-padding-top:85px}.wrap{width:calc(100% - 36px)}.nav{height:68px;gap:12px}.brand{font-size:22px}.nav-links{top:68px}.nav-actions{gap:6px}.hero{grid-template-columns:1fr;padding:38px 0 0;gap:24px}.hero-copy{padding:0}.eyebrow{font-size:9px;margin-bottom:23px}.hello{font-size:11px}.hero h1{font-size:58px;margin-bottom:18px}.hero-subtitle{font-size:27px}.lede{font-size:13px;margin-bottom:23px;max-width:none}.hero-meta{margin-top:25px;font-size:9px}.hero-visual{max-width:440px;margin:auto}.portrait-stage{height:420px}.portrait-watermark{font-size:140px}.portrait-images{inset:10px 0 0 15px}.portrait-caption{font-size:7px;left:17px;bottom:24px}.avatar-toggle{right:12px;bottom:15px}.avatar-toggle button{padding:6px 12px}.hero-lower{grid-template-columns:1fr;gap:24px;padding:28px 0 35px}.hero-lower-note{font-size:11px}.token-value{font-size:39px}.token-label{font-size:11px}.content-section{padding:65px 0}.section-head{margin-bottom:34px}.section-head h2{font-size:30px;letter-spacing:-.8px;margin:12px 0 17px}.kicker{font-size:9px}.section-note{font-size:12px}.education-grid{grid-template-columns:1fr}.education-item{grid-template-columns:58px 1fr;padding:24px 20px;gap:18px}.school-mark{width:58px;height:58px}.education-item h3{font-size:15px}.video-band{padding-bottom:0}.video-shell{grid-template-columns:1fr}.video-copy{padding:26px}.video-copy h2{font-size:25px}.video-frame{min-height:215px}.intro-video,.intro-embed{min-height:215px}.stats{grid-template-columns:1fr 1fr;gap:15px 0;margin-bottom:40px}.stat{padding:14px 10px}.stat:nth-child(2){border:0}.stat strong{font-size:29px}.stat span{font-size:9px}.timeline:before{left:22px;top:20px;bottom:35px}.experience{grid-template-columns:1fr;margin:0 0 30px;padding-left:62px;gap:12px}.timeline-node{left:22px;top:9px;width:45px;height:45px;font-size:10px;border-width:4px}.experience .year,.experience:nth-child(even) .year{grid-column:1;grid-row:1;text-align:left;padding:10px 0 0;font-size:10px}.experience>div:last-child,.experience:nth-child(even)>div:last-child{grid-column:1;grid-row:2;padding:22px 18px}.experience>div:last-child:after,.experience:nth-child(even)>div:last-child:after{display:none}.experience h3{font-size:16px}.experience .org{font-size:11px}.experience ul{font-size:11px}.projects{grid-template-columns:1fr;gap:28px}.project-body{padding:25px 23px}.project h3{font-size:24px}.toolkit>div:last-child{grid-template-columns:1fr;gap:30px}.skill-group label{font-size:16px}.skill-group .tag{font-size:10px}.interest-grid{grid-template-columns:1fr 1fr;gap:15px}.interest{min-height:135px;padding:20px 12px}.interest span{font-size:10px}.contact-box h2{font-size:30px;letter-spacing:-.8px}.contact-box p{font-size:12px}.contact-links{gap:8px}.contact-links .btn{padding:11px 17px}.email-address{font-size:13px}.footer-inner{font-size:9px}.footer-links{gap:15px;flex-wrap:wrap}.back-top{bottom:16px;right:14px;width:35px;height:35px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.motion-enabled .reveal{opacity:1;transform:none}.portrait-images{transform:none}}

.hero-intro .lede{max-width:470px;margin-bottom:14px}.hero-intro .lede:last-child{margin-bottom:28px}