/* About page: same night-blue world as the portal; mono only for eyebrows, numbers and dates. */
body{background:radial-gradient(ellipse at 82% 2%,#1a2c5290,transparent 40%),linear-gradient(180deg,#070a12,#0a1120 45%,#080d17);color:#fff}
::selection{background:#8ccfff;color:#07101b}
.topbar{position:relative;background:transparent;padding-inline:max(24px,calc((100% - 1260px)/2))}
h1,h2,h3,h4,p,dl,dd,ol{margin:0}ol{padding:0;list-style:none}
.about-wrap{width:min(1180px,calc(100% - 80px));margin:auto}
.eyebrow{display:flex;align-items:center;gap:10px;font:500 12px/1.5 var(--mono);letter-spacing:.14em;color:#8ccfff;white-space:nowrap}
.pulse{width:8px;height:8px;border-radius:50%;background:#8ccfff;box-shadow:0 0 0 5px #8ccfff22}

/* Hero */
.hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);column-gap:56px;align-items:center;padding:72px 0 64px}
.hero h1{margin-top:24px;font-size:clamp(40px,4.6vw,64px);line-height:1.18;letter-spacing:-.035em;font-weight:700}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#8ccfff,#9e9bff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{margin-top:26px;max-width:560px;color:#c0cad8;font-size:17px;line-height:1.9}
.hero-actions{display:flex;align-items:center;gap:28px;margin-top:34px}
.hero-portrait{position:relative;display:grid;place-items:center;isolation:isolate;padding:20px 0}
.hero-portrait img{width:78%;max-width:340px;height:auto;filter:drop-shadow(0 30px 40px #0008)}
.orbit{position:absolute;inset:6% 6% auto;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 34% 28%,#7f9de0,#2a4280 62%,#12213f);opacity:.8;z-index:-1;box-shadow:0 0 120px #3d6bd655}
.chip{position:absolute;padding:8px 14px;border:1px solid #8ccfff55;border-radius:999px;background:#0b1424cc;backdrop-filter:blur(6px);font:500 12px/1 var(--mono);color:#cfe9ff}
.chip-a{top:16%;left:2%}.chip-b{top:46%;right:0}.chip-c{bottom:14%;left:8%}
.facts{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:56px;border-top:1px solid #ffffff1f}
.facts>div{padding:26px 24px 0 0}
.facts>div+div{padding-left:24px;border-left:1px solid #ffffff14}
.facts dt{font:600 44px/1 var(--sans);letter-spacing:-.03em;color:#fff}
.facts dt small{font-size:15px;font-weight:500;color:#8ccfff;margin-left:6px;letter-spacing:0}
.facts dd{margin-top:10px;color:#a9b6c8;font-size:14px;line-height:1.6}

/* Manifesto */
.manifesto{padding:72px 0;border-top:1px solid #ffffff14;text-align:center}
.manifesto-en{max-width:900px;margin:auto;font-size:clamp(24px,2.8vw,36px);line-height:1.45;letter-spacing:-.02em;font-weight:600}
.manifesto-zh{margin-top:18px;color:#91a3bd;font-size:15px}

/* Blocks */
.block{border-top:1px solid #ffffff14;padding:72px 0}
.block-head{display:grid;grid-template-columns:minmax(0,1fr);gap:14px;margin-bottom:40px}
.block-head h2{font-size:clamp(28px,3vw,40px);line-height:1.3;letter-spacing:-.03em;font-weight:700}
.block-head>p:not(.eyebrow){max-width:620px;color:#b7c2d3;font-size:15px;line-height:1.8}

.expertise{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.skill{display:flex;flex-direction:column;padding:28px;border:1px solid #ffffff17;border-radius:16px;background:linear-gradient(180deg,#ffffff08,#ffffff02)}
.skill-no{font:500 12px/1 var(--mono);color:#8ccfff}
.skill h3{margin-top:22px;font-size:22px;line-height:1.4;font-weight:600}
.skill>p{margin-top:12px;color:#b7c2d3;font-size:15px;line-height:1.85;flex:1}
.proof{display:flex;flex-direction:column;gap:8px;margin-top:24px;padding-top:20px;border-top:1px solid #ffffff12}
.proof span{font:500 11px/1.5 var(--mono);letter-spacing:.1em;color:#7d8da4}
.proof a{font-size:14px;line-height:1.5;color:#dbe9f8}
.proof a::after{content:" ↗";color:#8ccfff}
.proof a:hover{color:#8ccfff}

.traits{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.traits article{padding-top:20px;border-top:2px solid #8ccfff}
.traits h3,.beyond h3{font-size:19px;line-height:1.5;font-weight:600}
.traits p,.beyond p{margin-top:10px;color:#b7c2d3;font-size:15px;line-height:1.8}

.research{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center;padding:36px;border:1px solid #8ccfff33;border-radius:20px;background:linear-gradient(120deg,#122347,#0b1424 60%)}
.research:hover{border-color:#8ccfff88}
.research-tag{font:500 12px/1.5 var(--mono);letter-spacing:.08em;color:#8ccfff}
.research h3{margin-top:16px;font-size:clamp(22px,2.2vw,28px);line-height:1.45;font-weight:600}
.research p{margin-top:14px;color:#c0cad8;font-size:15px;line-height:1.85}
.research-link{display:inline-block;margin-top:22px;font-weight:600;border-bottom:1px solid #8ccfff90;padding-bottom:6px}
.research-link::after{content:" ↗";color:#8ccfff}
.research img{width:100%;height:auto;border-radius:12px}

.timeline{position:relative;display:grid}
.timeline li{display:grid;grid-template-columns:200px minmax(0,1fr);gap:40px;padding:24px 0;border-top:1px solid #ffffff12}
.timeline li:first-child{border-top:0;padding-top:0}
.timeline time,.education time{font:12px/28px var(--mono);color:#91a3bd}
.timeline h3{font-size:20px;line-height:1.5;font-weight:600}
.timeline h3 span{margin-left:12px;font-size:14px;font-weight:500;color:#8ccfff}
.timeline p{margin-top:8px;max-width:720px;color:#b7c2d3;font-size:15px;line-height:1.8}
.education{display:grid;grid-template-columns:200px repeat(2,minmax(0,1fr));gap:40px;margin-top:40px;padding-top:32px;border-top:1px solid #ffffff1f}
.education-title{font-size:20px;font-weight:600}
.education h4{margin-top:4px;font-size:18px;line-height:1.5;font-weight:600}
.education p{margin-top:6px;color:#b7c2d3;font-size:14px;line-height:1.7}

.beyond{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.beyond article{padding:26px;border-radius:16px;background:#ffffff06;border:1px solid #ffffff12}

.resume{scroll-margin-top:24px}
.resume-downloads{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.resume-downloads>a{display:flex;justify-content:space-between;align-items:center;padding:22px 26px;border:1px solid #ffffff30;border-radius:12px;font-size:18px;background:#ffffff04}
.resume-downloads>a:hover{border-color:#8ccfff;background:#8ccfff0a}
.resume-downloads small{display:block;font:11px/1.5 var(--mono);color:#91a3bd;margin-top:6px}
.email-link{display:inline-flex;gap:20px;margin-top:28px;font-size:14px;color:#8ccfff}
.email-link:hover{color:#fff}
.about-footer{max-width:1260px;margin:auto;border-top:1px solid #ffffff18;padding:26px 0 36px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#91a3bd}
.about-footer a{color:#fff}

@media(max-width:1100px){
 .traits{row-gap:32px}
 .expertise{grid-template-columns:minmax(0,1fr)}
 .timeline li{grid-template-columns:160px minmax(0,1fr);gap:28px}
 .education{grid-template-columns:160px repeat(2,minmax(0,1fr));gap:28px}
}
@media(max-width:860px){
 .about-wrap{width:calc(100% - 48px)}
 .hero{grid-template-columns:minmax(0,1fr);padding:40px 0 48px}
 .hero-portrait{order:-1;width:min(300px,80%);justify-self:center;padding:0}
 .facts{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:40px}
 .facts>div:nth-child(3){padding-left:0;border-left:0}
 .facts>div{padding-bottom:20px}
 .research{grid-template-columns:minmax(0,1fr);padding:24px;gap:24px}
 .research img{order:-1}
 .traits{grid-template-columns:minmax(0,1fr)}
 .beyond{grid-template-columns:minmax(0,1fr)}
 .timeline li{grid-template-columns:minmax(0,1fr);gap:4px}
 .education{grid-template-columns:minmax(0,1fr);gap:20px}
 .block,.manifesto{padding:52px 0}
 .about-footer{margin:0 24px}
}
@media(max-width:560px){
 .hero h1{font-size:min(34px,8.6vw)}
 .hero-portrait{width:min(240px,70%)}
 .hero-lead{font-size:15px}
 .facts dt{font-size:36px}
 .traits{grid-template-columns:minmax(0,1fr)}
 .skill{padding:22px}
 .timeline h3 span{display:block;margin:2px 0 0}
 .resume-downloads{grid-template-columns:1fr;gap:12px}
 .resume-downloads>a{padding:18px 20px}
 .eyebrow{font-size:min(12px,2.9vw)}
}
/* English: the quote already reads in English; skip its translated echo. */
html[lang="en"] .manifesto-zh{display:none}
.facts[hidden],.block[hidden]{display:none}
.ig-link{color:#8ccfff;border-bottom:1px solid #8ccfff66}.ig-link:hover{color:#fff}

/* Hero: a profile card instead of the portal's character, so the two first screens differ while sharing the same grid and spacing. */
.id-card{justify-self:end;width:min(100%,440px);padding:28px;border:1px solid #8ccfff33;border-radius:20px;background:linear-gradient(160deg,#14254acc,#0b1424e6 60%);box-shadow:0 30px 80px #0007,inset 0 1px 0 #ffffff14;background-image:linear-gradient(160deg,#14254acc,#0b1424e6 60%),repeating-linear-gradient(0deg,#ffffff06 0 1px,transparent 1px 28px)}
.id-head{display:flex;align-items:center;gap:16px;padding-bottom:22px;border-bottom:1px solid #ffffff17}
.id-head img{width:64px;height:64px;border-radius:50%;object-fit:cover;object-position:50% 12%;background:radial-gradient(circle at 35% 28%,#7f9de0,#2a4280);border:1px solid #8ccfff55}
.id-name{font-size:22px;font-weight:700;letter-spacing:-.02em}
.id-meta{margin-top:4px;font:500 11px/1.4 var(--mono);letter-spacing:.14em;color:#7d8da4}
.id-rows{display:grid;gap:0;margin-top:6px}
.id-rows>div:last-child{border-bottom:0;padding-bottom:0}
.id-rows>div{display:grid;grid-template-columns:76px minmax(0,1fr);gap:12px;padding:13px 0;border-bottom:1px dashed #ffffff14}
.id-rows dt{font:500 11px/22px var(--mono);letter-spacing:.12em;color:#8ccfff}
.id-rows dd{font-size:15px;line-height:22px;color:#e6eef8}
.id-rows i{font-style:normal;color:#7d8da4}
.id-foot{display:flex;align-items:center;gap:10px;margin-top:20px;font:500 12px/1 var(--mono);color:#a9b6c8}
@media(max-width:860px){.id-card{order:-1;justify-self:stretch;width:auto;margin:0 0 36px;padding:22px}}
/* Phone: expertise cards stay compact; work links become small chips. */
@media(max-width:560px){
 .skill{padding:20px}
 .skill h3{margin-top:12px;font-size:19px}
 .skill>p{font-size:14px;line-height:1.75}
 .proof{flex-direction:row;flex-wrap:wrap;gap:6px;margin-top:14px;padding-top:14px}
 .proof span{display:none}
 .proof a{padding:5px 10px;border:1px solid #ffffff1f;border-radius:999px;font-size:12px}
 .proof a::after{content:none}
 .expertise{gap:12px}
}

/* Hero variants B (career path) and C (code card); same footprint as the profile card. */
.hero-variant[hidden]{display:none!important}
.path-card,.code-card{justify-self:end;width:min(100%,440px)}
.path-card{padding:30px;border:1px solid #8ccfff33;border-radius:20px;background:linear-gradient(160deg,#14254acc,#0b1424e6 60%)}
.path-label{font:500 11px/1 var(--mono);letter-spacing:.16em;color:#7d8da4}
.path{position:relative;display:grid;gap:30px;margin-top:26px}
.path::before{content:"";position:absolute;left:9px;top:12px;bottom:12px;width:2px;background:linear-gradient(#8ccfff22,#8ccfff)}
.path li{position:relative;display:grid;grid-template-columns:20px minmax(0,1fr);gap:18px;align-items:start}
.node{width:20px;height:20px;margin-top:3px;border-radius:50%;border:2px solid #8ccfff88;background:#0b1424}
.path .is-now .node{background:#8ccfff;border-color:#8ccfff;box-shadow:0 0 0 6px #8ccfff26,0 0 24px #8ccfff}
.path b{display:block;font-size:24px;line-height:1.3;font-weight:700;letter-spacing:-.02em;color:#c9d6e6}
.path .is-now b{background:linear-gradient(90deg,#8ccfff,#9e9bff);-webkit-background-clip:text;background-clip:text;color:transparent}
.path small{display:block;margin-top:6px;font:500 12px/1.6 var(--mono);color:#7d8da4}
.code-card{border:1px solid #ffffff1f;border-radius:16px;background:#060a12;box-shadow:0 30px 80px #0008;overflow:hidden}
.code-bar{display:flex;align-items:center;gap:7px;padding:12px 16px;border-bottom:1px solid #ffffff12;background:#0c1220}
.code-bar i{width:10px;height:10px;border-radius:50%;background:#2a3446}
.code-bar span{margin-left:10px;font:500 12px/1 var(--mono);color:#7d8da4}
.code{margin:0;padding:22px 20px;font:13px/1.9 var(--mono);color:#c9d6e6;white-space:pre-wrap;overflow-wrap:anywhere}
.code k{color:#8ccfff}.code s{text-decoration:none;color:#b8e6a6}.code n{color:#f2c46d}
.caret{display:inline-block;width:8px;height:16px;margin-left:4px;vertical-align:-3px;background:#8ccfff;animation:caret 1s steps(1) infinite}
@keyframes caret{50%{opacity:0}}
@media(max-width:860px){.code-card{justify-self:stretch;width:auto;margin-top:36px}}
.variant-switch{position:fixed;right:20px;bottom:20px;z-index:50;display:flex;gap:4px;padding:4px;border:1px solid #ffffff2a;border-radius:999px;background:#0b1424e6;backdrop-filter:blur(8px)}
.variant-switch button{width:40px;height:36px;border:0;border-radius:999px;background:transparent;color:#c9d6e6;font:600 14px/1 var(--sans);cursor:pointer}
.variant-switch button[aria-selected="true"]{background:#8ccfff;color:#07101b}
.proof .short{display:none}
@media(max-width:560px){.proof .full{display:none}.proof .short{display:inline}}
/* Use the homepage content gutters at every breakpoint. */
.about-wrap,.about-footer{width:min(1440px,100%);max-width:1440px;margin-inline:auto;padding-left:clamp(20px,4vw,56px);padding-right:clamp(20px,4vw,56px)}
.topbar{padding-left:clamp(20px,4vw,56px);padding-right:clamp(20px,4vw,56px)}
@media(min-width:1200px){
 .about-wrap,.about-footer{width:min(1580px,100%);max-width:1580px;padding-left:90px;padding-right:90px}
 .topbar{padding-left:max(90px,calc((100% - 1400px)/2));padding-right:max(90px,calc((100% - 1400px)/2))}
}