:root{--paper:#f8f8f5;--ink:#232523;--muted:#5c605c;--line:#d4d7d1;--blue:#244de2;--gray:#ededeb;--radius:4px;font-family:Inter,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}
/* Only career chapters need clearance for the sticky year navigation.
   Global scroll padding would leave that previous section visible at #skills. */
html{scroll-behavior:smooth;scroll-padding-top:0;-webkit-text-size-adjust:100%}
body{margin:0;font-size:16px;line-height:1.7}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
a,button{-webkit-tap-highlight-color:transparent}
button,a{touch-action:manipulation}
button{cursor:pointer}
button:disabled{cursor:default;opacity:.35}
a:focus-visible,button:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--blue);outline-offset:5px}
[hidden]{display:none!important}
.shell{width:min(1320px,calc(100% - 112px));margin-inline:auto}
.skip{position:fixed;z-index:20;top:8px;left:12px;background:white;padding:12px 24px;transform:translateY(-160%)}
.skip:focus{transform:none}
.header{display:flex;align-items:center;gap:24px;min-height:100px}
.brand{font-size:18px;letter-spacing:.02em;font-weight:600}
.brand span{font-weight:400;font-size:12px;margin-left:8px;color:var(--muted)}
.header nav{display:flex;gap:28px;margin-left:auto}
.header nav a{display:flex;align-items:center;min-height:44px;font-size:14px}
@media(hover:hover) and (pointer:fine){.header nav a:hover,.text-link:hover,.footer a:hover{color:var(--blue)}}
.hero{padding-top:62px;padding-bottom:0}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:.15em;margin:0 0 28px}
.hero-grid{display:grid;min-width:0;grid-template-columns:1.55fr 1fr;gap:7%;align-items:center}
.hero h1{font-size:clamp(48px,5.4vw,82px);font-weight:500;line-height:1.22;letter-spacing:-.06em;margin:0}
.hero h1>span{color:var(--blue)}
.hero-intro{font-size:18px;line-height:1.9;color:var(--muted);margin:30px 0}
.hero-actions,.closing-actions{display:flex;align-items:center;flex-wrap:wrap;gap:24px}
.button{min-height:52px;display:inline-flex;align-items:center;justify-content:center;gap:38px;padding:12px 24px;border-radius:40px;font-size:15px;transition:background .2s,transform .2s}
.primary{color:white;background:var(--ink)}
@media(hover:hover) and (pointer:fine){.primary:hover{background:var(--blue);transform:translateY(-2px)}}
.text-link{display:inline-flex;align-items:center;min-height:44px;font-size:14px}
.hero-copy{grid-column:1;grid-row:1;min-width:0}
.identity{grid-column:2;grid-row:1;min-width:0;padding:30px 0 24px 40px;border-left:1px solid var(--line)}
.identity-header{display:flex;align-items:center;gap:20px;margin-bottom:18px}
.identity-portrait{display:block;flex:none;width:120px;height:120px;object-fit:cover;border-radius:32px;border:1px solid var(--line);background:var(--gray)}
.identity-heading{min-width:0}
.identity-role{font-size:14px;line-height:1.6;color:var(--muted);margin:0 0 22px;overflow-wrap:anywhere}
.identity-name{font-size:clamp(32px,2.8vw,40px);line-height:1.15;letter-spacing:-.04em;margin:0;overflow-wrap:anywhere}
.identity-name>span{display:block;font-size:13px;letter-spacing:.24em;color:var(--muted);margin-top:8px}
.identity dl{margin:0}
.identity dl div{display:flex;gap:24px;margin:12px 0}
.identity dt{color:var(--muted);font-size:12px;min-width:40px;align-self:center}
.identity dd{font-size:15px;margin:0}
.hero-rule{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);margin-top:64px;padding:18px 0;color:var(--muted);font-size:13px}
.hero-rule a{font-size:24px;width:44px;height:44px;display:grid;place-items:center;color:var(--ink)}
.section-head{padding-top:96px;padding-bottom:42px}
.section-head h2,.about h2{font-size:clamp(34px,4vw,56px);font-weight:500;line-height:1.3;letter-spacing:-.045em;margin:0}
.section-lead{font-size:16px;color:var(--muted);max-width:700px;margin:24px 0 0}
.year-nav-wrap{position:sticky;top:0;z-index:5;background:rgba(248,248,245,.97);border-block:1px solid var(--line)}
.year-nav{display:flex;gap:12px;justify-content:space-between;overflow-x:auto;scrollbar-width:thin;padding-block:10px}
.year-nav a{flex-shrink:0;min-height:44px;min-width:72px;border-radius:30px;display:flex;align-items:center;justify-content:center;padding:8px 16px;font-size:14px;white-space:nowrap;transition:color .2s,background .2s}
@media(hover:hover) and (pointer:fine){.year-nav a:hover{background:var(--gray)}}
.year-nav a[aria-current="true"]{background:var(--ink);color:white}
.chapter{padding:62px 0;border-bottom:1px solid var(--line);scroll-margin-top:104px}
.chapter-head{display:grid;grid-template-columns:1fr 2.4fr;gap:40px;margin-bottom:30px}
.year-label{font-size:clamp(32px,3.7vw,52px);font-weight:400;letter-spacing:-.05em;line-height:1.2}
.year-label>span{display:block;font-size:14px;letter-spacing:.05em;color:var(--muted);margin-top:16px}
.company{font-size:13px;margin:0 0 10px;color:var(--muted)}
.chapter-summary h3{font-size:clamp(21px,2.1vw,29px);font-weight:500;line-height:1.55;margin:0 0 12px;max-width:760px;letter-spacing:-.025em}
.period{font-size:12px;color:var(--muted);margin:0;letter-spacing:.02em}
.rail-toolbar{display:flex;justify-content:space-between;align-items:center;margin:0 0 16px}
.rail-toolbar>p,.rail-hint{font-size:12px;color:var(--muted);margin:0}
.rail-controls{display:flex;align-items:center;gap:12px}
.rail-controls button{border:1px solid var(--line);background:transparent;border-radius:50%;width:44px;height:44px;font-size:20px;display:grid;place-items:center}
@media(hover:hover) and (pointer:fine){.rail-controls button:hover:not(:disabled){background:var(--ink);color:white}}
.rail-count{min-width:42px;text-align:center;font-size:12px;font-variant-numeric:tabular-nums}
.story-rail{display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:thin;scrollbar-color:#a5aaa2 transparent;padding-bottom:12px;overscroll-behavior-x:contain}
.story-card{min-width:0;border:1px solid var(--line);background:white;border-radius:var(--radius);overflow:hidden;scroll-snap-align:start;flex:none;display:flex;flex-direction:column}
.multi .story-card{width:82%}
.single .story-card{width:100%;display:grid;grid-template-columns:1.6fr 1fr;align-items:stretch}
.single .story-card:not(:has(.concept)){display:block}
.story-copy{padding:32px;min-width:0;overflow-wrap:anywhere}
.story-card h4{font-size:25px;line-height:1.4;font-weight:500;letter-spacing:-.035em;margin:12px 0 18px}
.story-description{font-size:17px;line-height:1.8;margin:0 0 18px}
.story-card ul{padding-left:20px;margin:0;color:var(--muted);font-size:15px;line-height:1.85}
.story-card li+li{margin-top:8px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.tags span{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:20px;padding:3px 10px}
.concept{margin:0;background:var(--gray);padding:26px;display:flex;flex-direction:column;justify-content:center;gap:22px}
.flow{display:flex;align-items:center;justify-content:center;gap:9px;flex-wrap:wrap}
.flow-node{min-width:0;overflow-wrap:anywhere;font-size:13px;background:var(--paper);padding:14px 12px;border:1px solid #d1d5cc;border-radius:3px;text-align:center}
.flow-arrow{font-size:16px;color:#72796e}
.concept figcaption{text-align:center;color:var(--muted);font-size:12px}
.multi .concept{margin-top:auto;padding:20px}
.rail-hint{margin-top:8px}
.skills{margin-top:30px;background:var(--gray);padding-bottom:76px}
.skill-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:44px}
.skill-grid article{border-top:1px solid #bec3ba;padding-top:20px}
.skill-index{font-size:12px;color:var(--muted)}
.skill-grid h3{font-size:24px;font-weight:500;margin:18px 0}
.skill-grid p{font-size:16px;line-height:1.9;margin:0 0 18px}
.skill-grid .skill-note{font-size:15px;color:var(--muted)}
.about{display:grid;grid-template-columns:1fr 1.1fr;gap:12%;padding-top:96px;padding-bottom:90px}
.about-copy>p:first-child{font-size:22px;line-height:1.8;margin:0 0 26px}
.education{font-size:14px;color:var(--muted);margin:0 0 36px}
.footer{border-top:1px solid var(--line);padding-block:24px;display:flex;align-items:center;flex-wrap:wrap;gap:12px 28px;font-size:12px;color:var(--muted)}
.footer>p{margin:0;margin-right:auto}
.footer>a{min-height:44px;display:flex;align-items:center}

/* Language controls share one responsive layout with both translations. */
.language-switch{display:flex;align-items:center;gap:2px;border:1px solid var(--line);border-radius:28px;padding:2px;flex-shrink:0}

.language-switch button{min-width:44px;min-height:44px;padding:8px 10px;border:0;border-radius:24px;background:transparent;font-size:12px;line-height:1.2}

.language-switch button[aria-pressed="true"]{background:var(--ink);color:white}

@media(hover:hover) and (pointer:fine){.language-switch button:hover:not([aria-pressed="true"]){background:var(--gray)}
}

html[lang="en"] .brand span,html[lang="en"] .identity-name>span{display:none}

html[lang="en"] .hero h1{font-size:clamp(40px,4.5vw,68px);letter-spacing:-.045em}

html[lang="en"] .hero-intro br{display:none}

html[lang="en"] .hero-intro{max-width:640px}

html[lang="en"] .identity-name{font-size:clamp(28px,2.5vw,36px)}

#year-0 .year-label{white-space:nowrap}

@media(min-width:1500px){.hero{padding-top:85px}
.hero-grid{min-height:440px}
}

@media(min-width:801px) and (max-width:1000px){
 .shell{width:calc(100% - 56px)}

 .header{gap:14px}
.header nav{gap:16px}
.brand span{display:none}

 .hero{padding-top:40px}
.hero-grid{gap:5%;grid-template-columns:1.5fr 1fr}
.hero h1{font-size:52px}

 .identity{padding-left:22px}
.identity-header{gap:16px}
.identity-portrait{width:96px;height:96px;border-radius:28px}
.identity dl div{display:block}
.identity dd{font-size:16px}

 .hero-intro{font-size:16px}
.chapter-head{grid-template-columns:1fr 2.4fr;gap:24px}

 .single .story-card{grid-template-columns:1.7fr 1fr}
.single .flow{flex-direction:column}
.single .flow-arrow{transform:rotate(90deg)}

 .story-copy{padding:26px}
.skill-grid{gap:24px}
.about{gap:8%}
.about-copy>p:first-child{font-size:20px}

}

/* Phone and portrait tablet: one reading column, two clear navigation rows.
   Horizontal scrolling is scoped to the years and multi-project rails only. */
@media(max-width:800px){
 :root{--gutter:max(16px,env(safe-area-inset-left),env(safe-area-inset-right))}

 .shell{width:calc(100% - var(--gutter) * 2)}

 .header{min-height:0;gap:8px 16px;flex-wrap:wrap;padding-top:max(12px,env(safe-area-inset-top));padding-bottom:8px}

 .header .brand{order:0;display:flex;align-items:center;min-height:44px;font-size:18px}

 .brand span{display:none}
.language-switch{order:1;margin-left:auto}

 .header nav{order:2;width:100%;margin-left:0;justify-content:space-between;gap:12px;border-top:1px solid var(--line)}

 .header nav a{font-size:14px;min-height:44px}

 .hero{padding-top:28px}
.eyebrow{font-size:12px;letter-spacing:.06em;margin-bottom:20px;overflow-wrap:anywhere}

 .hero-grid{display:flex;flex-direction:column;align-items:stretch;gap:24px}

 .hero h1{font-size:clamp(38px,9.7vw,60px);letter-spacing:-.055em}

 html[lang="en"] .hero h1{font-size:clamp(36px,8.8vw,56px)}

 .hero-intro{font-size:16px;line-height:1.85;margin:22px 0}
.hero-intro br{display:none}

 .hero-actions{gap:8px 20px}
.button{font-size:16px;min-height:48px;padding:10px 20px;gap:24px;max-width:100%}
.text-link{font-size:16px}

 /* Keep the portrait, name and role together instead of stacking three blocks.
    The plain wrapper has no semantic role; its children join the identity grid. */
 .hero>.eyebrow{display:none}
 .identity{display:grid;grid-template-columns:88px minmax(0,1fr);column-gap:16px;row-gap:8px;border-left:0;border-bottom:1px solid var(--line);padding:0 0 20px;margin:0}
.identity-header{display:contents}
.identity-portrait{grid-column:1;grid-row:1 / span 2;align-self:center;width:88px;height:88px;border-radius:28px}
.identity-heading{grid-column:2;grid-row:1;align-self:end}
.identity-role{grid-column:2;grid-row:2;align-self:start;font-size:13px;line-height:1.5;margin:0}
.identity dl{grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:8px;min-width:0}

 .identity-name,html[lang="en"] .identity-name{font-size:30px;margin:0}

 .identity-name>span{display:block;font-size:10px;letter-spacing:.16em;margin:5px 0 0}

 .identity dl div{display:flex;align-items:baseline;gap:8px;margin:0;min-width:0}

 .identity dd{font-size:13px;overflow-wrap:anywhere}
.identity dt{font-size:12px;min-width:0}

 .hero-rule{margin-top:24px;gap:16px;padding:12px 0;font-size:12px}
.hero-rule a{flex-shrink:0}

 .section-head{padding-top:56px;padding-bottom:28px}
.section-head h2,.about h2{font-size:clamp(32px,7.8vw,44px)}

 .section-lead{font-size:16px;line-height:1.85;margin-top:20px}
.section-lead br{display:none}

 .year-nav{gap:4px;padding:8px var(--gutter);width:100%;scroll-padding-inline:var(--gutter);justify-content:flex-start}

 .year-nav a{font-size:13px;min-width:64px;padding:8px 12px;min-height:44px}

 .chapter{padding:36px 0;scroll-margin-top:88px}
.chapter-head{display:block;margin-bottom:24px}

 .year-label{font-size:38px;display:flex;flex-wrap:wrap;gap:8px 18px;align-items:baseline;margin-bottom:20px}

 .year-label>span{margin:0;font-size:13px}
.company{font-size:12px;line-height:1.8}

 .chapter-summary h3{font-size:23px;line-height:1.5}

 .story-rail{gap:14px;scroll-padding-left:0}
.multi .story-card{width:calc(100% - 32px)}

 .single .story-card{display:flex;width:100%}
.story-copy{padding:24px 20px}

 .story-card h4{font-size:23px;margin:12px 0 16px}
.story-description,.story-card ul{font-size:16px}
.story-card ul{padding-left:18px}

 .concept,.multi .concept{padding:20px 16px;gap:16px}

 .flow,.single .flow{flex-direction:column;gap:6px}
.flow-node{width:100%;font-size:13px;padding:12px}

 .flow-arrow,.single .flow-arrow{font-size:16px;transform:rotate(90deg)}

 .concept figcaption{font-size:12px;overflow-wrap:anywhere}

 .rail-toolbar{gap:12px}
.rail-toolbar>p{flex:1;min-width:0}
.rail-controls{gap:8px;flex-shrink:0}
.rail-hint{font-size:12px}
.tags{gap:6px}

 .skills{margin-top:14px;padding-bottom:48px}
.skill-grid{grid-template-columns:1fr;gap:28px}

 .skill-grid h3{margin:12px 0;font-size:23px}
.skill-grid p{margin-bottom:12px;overflow-wrap:anywhere}
.skill-grid .skill-note{font-size:16px}

 .about{display:block;padding-top:56px;padding-bottom:48px}
.about-copy{margin-top:28px}
.about-copy>p:first-child{font-size:19px}
.education{font-size:16px}

 .closing-actions{gap:12px 20px}
.footer{font-size:12px;gap:8px 12px;padding-bottom:max(24px,env(safe-area-inset-bottom))}
.footer>p{max-width:240px}

}

@media(min-width:600px) and (max-width:800px){
 :root{--gutter:max(28px,env(safe-area-inset-left),env(safe-area-inset-right))}

 .hero{padding-top:40px}
.hero-intro{max-width:560px}

.multi .story-card{width:88%}

 .story-copy{padding:28px}
.flow,.single .flow{flex-direction:row;flex-wrap:nowrap}
.flow-node{flex:1;width:auto}
.flow-arrow,.single .flow-arrow{transform:none}

}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}