:root{--bg:#f7f9fc;--surface:#fff;--ink:#14233c;--muted:#54647a;--line:#d7e0ec;--accent:#185fc2;--chip:#eaf1fb;--shadow:0 16px 50px #182d4810;color-scheme:light}html[data-theme=dark]{--bg:#0b1220;--surface:#111d2f;--ink:#eaf1fc;--muted:#a6b5cb;--line:#2a3b51;--accent:#7cb8ff;--chip:#1a2c44;--shadow:none;color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font-family:Segoe UI,Arial,sans-serif;font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}button{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:5px}p,h1,h2,h3,h4{margin:0}.wrap{width:min(1180px,calc(100% - 96px));margin:auto}.header{max-width:1320px;padding:24px 48px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:25px;border-bottom:1px solid var(--line)}.brand{font-size:25px;font-weight:800;letter-spacing:-1.5px}.brand span{color:var(--accent);margin-left:4px}nav{display:flex;gap:32px;font-size:14px;font-weight:600}nav a:hover,.text-link:hover{color:var(--accent)}#theme{border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:8px 14px;border-radius:7px;cursor:pointer;font-size:14px;min-height:44px}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:70px;padding-top:86px;padding-bottom:78px;align-items:center}.eyebrow{color:var(--accent);font-family:Consolas,monospace;font-size:13px;font-weight:600;letter-spacing:1.8px;margin-bottom:18px}h1{font-size:clamp(54px,6.3vw,84px);line-height:1.12;letter-spacing:-4px;font-weight:750}.period{color:var(--accent)}.lead{font-size:clamp(24px,3vw,34px);line-height:1.3;letter-spacing:-1px;margin:20px 0}.intro{color:var(--muted);font-size:18px;max-width:510px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border:1px solid var(--line);border-radius:6px;font-size:14px;font-weight:650;min-height:48px;transition:transform .15s,background .15s}.button:hover{transform:translateY(-2px);background:var(--chip)}.button.primary{background:var(--accent);color:var(--bg);border-color:var(--accent)}.button.primary:hover{filter:brightness(1.1)}.button span{margin-left:16px}.location{font-size:13px;color:var(--muted);margin-top:28px}.location span{margin:0 8px;color:var(--accent)}.feature{background:#102341;color:#eff5ff;padding:30px 32px;border:1px solid #304d73;border-radius:12px;box-shadow:var(--shadow)}.feature-top{display:flex;justify-content:space-between;gap:10px;color:#9ab4d5;font:11px Consolas,monospace;letter-spacing:1px}.feature h2{font-size:27px;line-height:1.25;margin-top:28px;letter-spacing:-.6px}.big-number{font-size:86px;font-weight:700;letter-spacing:-5px;color:#81b9ff;line-height:1.15;margin-top:12px}.big-number span{font-size:42px;letter-spacing:-1px}.feature>p{color:#b6c9e1;font-size:14px}.chart{margin:24px 0}.bar-label{display:flex;justify-content:space-between;font-size:12px;color:#bdcee4;margin:12px 0 7px}.bar{height:8px;border-radius:2px}.before{width:100%;background:#476081}.after{width:8.77%;background:#7eb8ff}.feature-foot{border-top:1px solid #304767;padding-top:16px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;font-size:12px;color:#b6c9e1}.specialties{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:23px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted);font:14px Consolas,monospace}.section{padding-top:90px}.section-heading{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:32px}h2{font-size:36px;line-height:1.2;letter-spacing:-1.2px}.section-heading>p{font-size:14px;color:var(--muted)}.projects{display:grid;grid-template-columns:1fr 1fr;gap:22px}.project{background:var(--surface);padding:30px;border:1px solid var(--line);border-radius:8px;display:flex;flex-direction:column}.project-top{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;align-items:center;margin-bottom:24px}.index{font:18px Consolas,monospace;color:var(--accent)}h3{font-size:22px;line-height:1.35;letter-spacing:-.4px}.project p{color:var(--muted);margin-top:15px}.metric{display:flex;align-items:center;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}.metric strong{font:600 32px Consolas,monospace;color:var(--accent);white-space:nowrap}.metric small{font-size:18px}.metric span{font-size:13px;color:var(--muted)}.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:25px}.tags span{background:var(--chip);color:var(--accent);border-radius:4px;padding:5px 9px;font-size:12px}.job{display:grid;grid-template-columns:260px 1fr;gap:40px;border-top:1px solid var(--line);padding:32px 0}.date{font:14px Consolas,monospace;color:var(--accent)}.job>div>p:not(.date){color:var(--muted);font-size:14px;margin-top:7px}.job ul{padding-left:20px;color:var(--muted);margin-bottom:0}.job li{padding:3px 0}.about{display:grid;grid-template-columns:1fr 1fr;gap:90px}.about-text{margin:24px 0;color:var(--muted)}.text-link{font-weight:600;border-bottom:1px solid var(--accent);padding-bottom:5px}.education{border-left:1px solid var(--line);padding-left:35px}.education>div{margin-top:25px}h4{font-size:19px;margin:7px 0}.education p{color:var(--muted);font-size:14px}.education p.accent{color:var(--accent);margin-top:6px}.skills{display:grid;grid-template-columns:.8fr 1.5fr 1fr;gap:35px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:30px 0;margin-top:50px}.skills h3{font-size:16px}.skills p{font-size:14px;color:var(--muted);margin-top:12px}.contact{padding:85px 0}.contact h2{font-size:44px}.email{display:inline-block;font-size:22px;color:var(--accent);margin-top:24px;overflow-wrap:anywhere}footer{border-top:1px solid var(--line);padding:24px 0;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:12px}.skip{position:fixed;left:12px;top:-80px;background:var(--surface);z-index:10;padding:12px}.skip:focus{top:12px}@media(max-width:900px){.wrap{width:calc(100% - 48px)}.header{padding:20px 24px}.hero{gap:30px;padding-top:55px}.feature{padding:24px}.feature-top{font-size:10px}.hero h1{font-size:58px}.intro{font-size:16px}.about{gap:35px}.job{grid-template-columns:190px 1fr}.section-heading>p{display:none}}@media(max-width:650px){.header{flex-wrap:wrap;gap:14px}.brand{margin-right:auto}nav{order:3;width:100%;justify-content:space-between;border-top:1px solid var(--line);padding-top:14px}#theme{font-size:13px}.hero{grid-template-columns:1fr;padding-top:42px;padding-bottom:35px;gap:35px}.hero h1{font-size:60px;letter-spacing:-3px}.eyebrow{font-size:12px;letter-spacing:1.1px}.lead{font-size:27px}.feature h2{font-size:27px}.specialties{display:grid;grid-template-columns:1fr 1fr;font-size:12px;gap:15px}.section{padding-top:55px}h2{font-size:29px}.projects{grid-template-columns:1fr}.project{padding:24px}.job{grid-template-columns:1fr;gap:15px}.about{grid-template-columns:1fr;gap:30px}.education{padding-left:22px}.skills{grid-template-columns:1fr;gap:25px;margin-top:35px}.contact{padding:55px 0}.contact h2{font-size:33px}.email{font-size:20px}footer{flex-wrap:wrap}.metric{flex-wrap:wrap;gap:8px 18px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Single-column introduction */
.hero{grid-template-columns:1fr}.hero-copy{max-width:800px}.hero .intro{max-width:690px}

/* Language control follows the existing theme control. */
.header-controls{display:flex;gap:8px}
#language{border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:8px 14px;border-radius:7px;cursor:pointer;font-size:14px;min-height:44px}
@media(max-width:650px){#language{font-size:13px}}
html[lang="zh-CN"] .eyebrow,html[lang="zh-CN"] .specialties,html[lang="zh-CN"] .date{font-family:"Microsoft YaHei UI","Microsoft YaHei","PingFang SC","Noto Sans SC","Noto Sans CJK SC",sans-serif}