/* Hallmark · shape: Portfolio Grid · genre: modern-minimal · theme: brand · idea: a personal record of AI delivery · hero: Banner · nav: name and section links · footer: direct contact · signature: real enterprise and 3D project captures · job: hire · posture: restrained · axes: light/grotesk-sans/cool · v2.0.0 */
/* Hallmark · pre-emit critique: P4 H4 E4 S5 R4 V4 · weakest: H, case details move to dedicated pages to keep the first reading concise */
/* Hallmark · waive 59 · dense portfolio separated by rules · compact resume sections support recruiter scanning and the requested Magic UI reference */
/* Hallmark · waive 77 · concise resume and case prose share a compact document layout · the portfolio keeps contact and download short while real project images carry its visual mass */
/* Hallmark · waive 78 · case pages use Long Document headings · the portfolio case narrative keeps subsection headings at 24px to distinguish them from the project title */
/* Hallmark · waive 79 · case screenshots sit between title and prose · the portfolio has real image content in this measured band, not an empty spacer */
/* Hallmark · answered F4 · the pale selected category is a filter state; the blue download and project action share one primary recipe */
/* Hallmark · hero-review: fix, 3 resolved · finish-review: subagent, ship after complete image recapture */
@import url('./tokens.css');
*{box-sizing:border-box}[hidden]{display:none!important}html{scrollbar-color:var(--color-rule) var(--color-paper);overflow-x:clip;scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;overflow-x:clip;background:var(--color-paper);color:var(--color-ink);font-family:var(--font-body);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}::selection{background:var(--color-selection);color:var(--color-ink)}a{color:inherit;text-decoration:none}button{font:inherit}button,a,summary{ -webkit-tap-highlight-color:var(--color-transparent)}:focus-visible{outline:3px solid var(--color-focus);outline-offset:5px}h1,h2,h3,p,figure,dl,dd{margin:0}h1,h2,h3{font-family:var(--font-display);line-height:1.3;overflow-wrap:break-word;min-width:0;font-weight:600}h1,h2{text-wrap:balance}.hero-position,.hero-lead{display:block}.hero-summary{margin:0}h1{font-size:64px;letter-spacing:-.045em}h2{font-size:40px;letter-spacing:-.025em}h3{font-size:21px;letter-spacing:-.015em}img{display:block;max-width:100%;height:auto}svg{width:20px;height:20px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.container{max-width:1008px;margin-inline:auto;padding-inline:var(--space-lg)}.site-header{position:sticky;top:0;z-index:30;background:var(--color-paper);border-bottom:1px solid var(--color-rule)}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:var(--space-lg)}.wordmark{font-size:20px;font-weight:600;color:var(--color-ink);display:flex;align-items:center;gap:var(--space-sm)}.wordmark-mark{color:var(--color-blue);font-size:22px;letter-spacing:-.08em}.nav-links{display:flex;gap:var(--space-lg);align-items:center}.nav-links a{font-size:14px;color:var(--color-muted);padding-block:var(--space-sm);transition:color var(--dur-micro)}.nav-links a:hover,.nav-links a[aria-current]{color:var(--color-blue)}.menu-button{display:none;background:var(--color-paper);border:1px solid var(--color-rule);border-radius:8px;min-width:44px;min-height:44px;color:var(--color-ink);align-items:center;justify-content:center}.hero{padding-top:var(--space-3xl);padding-bottom:var(--space-2xl)}.hero-main{display:grid;grid-template-columns:minmax(0,1fr) 156px;gap:var(--space-2xl);align-items:center}.hero-name{display:flex;gap:var(--space-md);align-items:center}.hero-position{margin-top:var(--space-md);font-size:28px;line-height:1.5;color:var(--color-blue);font-weight:500}.hero-lead{margin-top:var(--space-lg);color:var(--color-muted);font-size:19px;max-width:52ch}.portrait{width:156px;height:180px;object-fit:cover;object-position:50% 12%;border-radius:18px;background:var(--color-paper-2);border:1px solid var(--color-rule)}.actions{display:flex;gap:var(--space-sm);align-items:center;flex-wrap:wrap;margin-top:var(--space-xl)}.button{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-xs);min-height:46px;padding:var(--space-xs) var(--space-lg);border:1px solid var(--color-blue);border-radius:8px;background:var(--color-blue);color:var(--color-paper);font-size:14px;font-weight:500;cursor:pointer;transition:transform var(--dur-micro),background-color var(--dur-micro)}.button:hover{background:var(--color-blue-dark)}.button:active{transform:translateY(1px)}.button.secondary{border-color:var(--color-rule);color:var(--color-ink);background:var(--color-paper)}.button.secondary:hover{background:var(--color-paper-2)}.button[disabled]{opacity:.5;cursor:not-allowed}.hero-location{display:flex;align-items:center;gap:var(--space-xs);font-size:14px;color:var(--color-muted);margin-top:var(--space-lg)}.intro{border-top:1px solid var(--color-rule);padding-block:var(--space-xl)}.intro-layout{display:grid;grid-template-columns:180px minmax(0,1fr);gap:var(--space-xl)}.intro h2{font-size:23px}.intro p{color:var(--color-muted);max-width:64ch}.intro p+p{margin-top:var(--space-md)}.section{padding-top:var(--space-3xl)}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--space-lg);margin-bottom:var(--space-xl)}.section-head p{color:var(--color-muted);font-size:15px;margin-top:var(--space-sm)}.text-link{display:inline-flex;align-items:center;gap:var(--space-xs);color:var(--color-blue);font-size:14px;min-height:44px;flex-shrink:0}.text-link:hover{text-decoration:underline;text-underline-offset:5px}.impact{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--color-rule);border-bottom:1px solid var(--color-rule);padding-block:var(--space-lg);gap:var(--space-lg)}.impact>div+div{border-left:1px solid var(--color-rule);padding-left:var(--space-lg)}.impact dt{font-size:48px;line-height:1.2;font-weight:500;letter-spacing:-.05em;color:var(--color-blue);font-variant-numeric:tabular-nums}.impact div:nth-child(2) dt{color:var(--color-purple)}.impact dt span{font-size:17px;letter-spacing:0;margin-left:var(--space-xs)}.impact dd{color:var(--color-ink);margin-top:var(--space-sm);font-size:15px}.impact small{display:block;font-size:13px;color:var(--color-muted);margin-top:var(--space-2xs)}.filter-list{display:flex;flex-wrap:wrap;gap:var(--space-xs);margin-bottom:var(--space-lg)}.filter-list button{background:var(--color-paper);border:1px solid var(--color-rule);color:var(--color-muted);padding:var(--space-xs) var(--space-md);border-radius:999px;font-size:14px;min-height:40px;cursor:pointer}.filter-list button[aria-pressed=true]{border-color:var(--color-blue);color:var(--color-blue);background:var(--color-blue-soft)}.filter-list button:hover{border-color:var(--color-blue)}.project-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-lg)}.project-card{border:1px solid var(--color-rule);border-radius:14px;overflow:clip;background:var(--color-paper);display:flex;flex-direction:column;transition:transform var(--dur-short),box-shadow var(--dur-short)}.project-card:hover{transform:translateY(-4px);box-shadow:0 10px 32px var(--color-shadow)}.project-visual{display:block;aspect-ratio:1.68;background:var(--color-paper-2);overflow:clip;border-bottom:1px solid var(--color-rule)}.project-visual img{width:100%;height:100%;object-fit:cover;object-position:top}.project-card[data-id=ai-platform] .project-visual img{object-position:top}.project-card[data-id=douyin] .project-visual{background:var(--color-sage);display:flex;justify-content:center;align-items:flex-start}.project-card[data-id=douyin] .project-visual img{width:62%;height:auto;object-fit:contain;box-shadow:0 4px 18px var(--color-shadow);margin-top:var(--space-lg)}.project-content{padding:var(--space-lg);display:flex;flex-direction:column;flex:1}.project-heading{display:flex;gap:var(--space-md);justify-content:space-between;align-items:flex-start}.project-heading svg{margin-top:var(--space-2xs);color:var(--color-muted)}.project-content p{font-size:14px;color:var(--color-muted);margin-top:var(--space-sm);line-height:1.8}.project-result{color:var(--color-blue)!important;font-weight:500}.tags{display:flex;flex-wrap:wrap;gap:var(--space-xs);margin-top:var(--space-md);list-style:none;padding:0}.tags li{font-size:12px;line-height:1.6;color:var(--color-muted);background:var(--color-paper-2);padding:var(--space-2xs) var(--space-xs);border-radius:4px}.case-link{margin-top:auto;padding-top:var(--space-md);display:flex;gap:var(--space-xs);align-items:center;color:var(--color-ink);font-size:13px}.project-card[hidden]{display:none}.diagram{height:100%;padding:var(--space-lg);display:flex;flex-direction:column;justify-content:center;gap:var(--space-md);color:var(--color-blue);background:var(--color-blue-soft)}.diagram-title{font-size:28px;line-height:1.3;font-weight:500}.diagram-flow{display:flex;gap:var(--space-sm);flex-wrap:wrap;align-items:center;font-size:14px}.diagram-flow span{border-bottom:1px solid var(--color-blue-rule);padding-bottom:var(--space-xs)}.diagram-sub{color:var(--color-muted);font-size:13px}.diagram.purple{color:var(--color-purple);background:var(--color-purple-soft)}.diagram.purple .diagram-flow span{border-color:var(--color-purple-rule)}.timeline{border-top:1px solid var(--color-rule)}.job{border-bottom:1px solid var(--color-rule)}.job summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:168px minmax(0,1fr) 20px;gap:var(--space-lg);padding-block:var(--space-lg);align-items:center}.job summary::-webkit-details-marker{display:none}.job time{font-size:13px;color:var(--color-muted);font-variant-numeric:tabular-nums}.job h3{font-size:19px}.job .role{font-size:14px;color:var(--color-muted);margin-top:var(--space-2xs)}.job summary svg{transition:transform var(--dur-short);color:var(--color-muted)}.job[open] summary svg{transform:rotate(45deg)}.job-body{padding-left:192px;padding-bottom:var(--space-lg)}.job-body ul{margin:0;padding-left:var(--space-md);display:grid;gap:var(--space-sm);color:var(--color-muted);font-size:15px}.job-body li::marker{color:var(--color-blue)}.education{display:flex;justify-content:space-between;gap:var(--space-lg);margin-top:var(--space-xl);padding-bottom:var(--space-lg)}.education p{font-size:14px;color:var(--color-muted);margin-top:var(--space-2xs)}.education time{font-size:14px;color:var(--color-muted)}.capabilities{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-xl) var(--space-lg)}.capabilities h3{font-size:18px}.capabilities p{color:var(--color-muted);font-size:14px;margin-top:var(--space-sm)}.resume-band{border-top:2px solid var(--color-purple);border-bottom:1px solid var(--color-rule);padding-block:var(--space-xl);display:flex;align-items:center;justify-content:space-between;gap:var(--space-xl);margin-top:var(--space-3xl)}.resume-band h2{font-size:28px}.resume-band p{font-size:14px;color:var(--color-muted);margin-top:var(--space-xs)}.resume-band .actions{margin-top:0;flex-shrink:0}.contact{padding-block:var(--space-3xl)}.contact-layout{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--space-xl)}.contact h2{font-size:40px}.contact-location{display:flex;align-items:center;gap:var(--space-xs);color:var(--color-muted);margin-top:var(--space-md)}.contact-links{display:flex;flex-direction:column;gap:var(--space-md)}.contact-links a{display:flex;gap:var(--space-sm);align-items:center;font-size:18px}.contact-links a:hover{color:var(--color-blue)}.contact-links small{color:var(--color-muted);font-size:13px}.site-footer{border-top:1px solid var(--color-rule);padding-block:var(--space-lg);color:var(--color-muted);font-size:13px;display:flex;justify-content:space-between;gap:var(--space-lg)}.skip{position:fixed;top:-100px;left:var(--space-md);z-index:100;background:var(--color-ink);color:var(--color-paper);padding:var(--space-sm) var(--space-md)}.skip:focus-visible{top:var(--space-md)}.case-header{padding-top:var(--space-2xl)}.case-header h1{font-size:46px;margin-top:var(--space-lg);max-width:20ch}.case-lead{font-size:20px;color:var(--color-muted);margin-top:var(--space-lg);max-width:52ch}.case-meta{display:flex;gap:var(--space-xl);flex-wrap:wrap;margin-top:var(--space-xl);padding-block:var(--space-lg);border-top:1px solid var(--color-rule);border-bottom:1px solid var(--color-rule)}.case-meta dt{font-size:12px;color:var(--color-muted)}.case-meta dd{font-size:15px;margin-top:var(--space-2xs)}.case-image{margin-top:var(--space-xl);border:1px solid var(--color-rule);border-radius:12px;overflow:clip;background:var(--color-paper-2)}.case-image img{width:100%;height:auto}.case-image.narrow img{width:430px;margin-inline:auto}.case-image figcaption{border-top:1px solid var(--color-rule);padding:var(--space-sm) var(--space-md);font-size:13px;color:var(--color-muted);background:var(--color-paper)}.case-sections{margin-top:var(--space-2xl)}.case-section{display:grid;grid-template-columns:180px minmax(0,1fr);gap:var(--space-xl);padding-block:var(--space-xl);border-top:1px solid var(--color-rule)}.case-section h2{font-size:24px}.case-section p{color:var(--color-muted);font-size:16px;max-width:64ch}.case-section p+p{margin-top:var(--space-md)}.case-section .result-list{padding:0;margin:0;list-style:none;display:grid;gap:var(--space-md);color:var(--color-ink)}.case-section .result-list li{padding-left:var(--space-md);border-left:2px solid var(--color-purple)}.case-navigation{margin-block:var(--space-2xl);display:flex;justify-content:space-between;gap:var(--space-lg)}.copy-status{font-size:13px;color:var(--color-blue);min-height:23px}.case-diagram{min-height:260px;margin-top:var(--space-xl);border-radius:12px;overflow:clip}.no-js-note{display:none}
@media(min-width:1500px){.container{max-width:1040px}}
@media(max-width:700px){h1{font-size:48px}h2{font-size:30px}.container{padding-inline:var(--space-lg)}.header-inner{min-height:68px;gap:var(--space-sm)}.nav-links{gap:var(--space-md)}.nav-links a{font-size:13px}.hero{padding-top:var(--space-2xl);padding-bottom:var(--space-xl)}.hero-main{grid-template-columns:minmax(0,1fr) 100px;gap:var(--space-lg);align-items:start}.portrait{width:100px;height:120px;border-radius:12px}.hero-position{font-size:22px}.hero-lead{font-size:17px}.actions{margin-top:var(--space-lg)}.intro-layout{grid-template-columns:minmax(0,1fr);gap:var(--space-md)}.intro p{font-size:15px}.section{padding-top:var(--space-2xl)}.section-head{align-items:flex-start;margin-bottom:var(--space-lg)}.impact{gap:var(--space-md)}.impact>div+div{padding-left:var(--space-md)}.impact dt{font-size:36px}.impact dt span{font-size:13px;margin-left:var(--space-2xs)}.impact dd{font-size:13px}.impact small{font-size:12px}.project-grid{gap:var(--space-md)}.project-content{padding:var(--space-md)}.project-content h3{font-size:18px}.job summary{grid-template-columns: minmax(0,1fr) 20px;gap:var(--space-xs) var(--space-md)}.job summary time{grid-column:1}.job summary>div{grid-column:1;grid-row:2}.job summary>svg{grid-column:2;grid-row:1 / 3}.job-body{padding-left:0}.capabilities{gap:var(--space-lg)}.resume-band{margin-top:var(--space-2xl);flex-direction:column;align-items:flex-start;gap:var(--space-lg)}.contact{padding-block:var(--space-2xl)}.contact-layout{flex-direction:column;gap:var(--space-xl)}.case-header{padding-top:var(--space-xl)}.case-header h1{font-size:36px}.case-section{grid-template-columns:minmax(0,1fr);gap:var(--space-md);padding-block:var(--space-lg)}.case-lead{font-size:18px}.case-navigation{flex-wrap:wrap}.case-image{border-radius:8px}.diagram-title{font-size:24px}}
@media(max-width:520px){.project-grid{grid-template-columns:minmax(0,1fr)}.menu-button{display:inline-flex}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:var(--space-md) var(--space-lg);background:var(--color-paper);border-bottom:1px solid var(--color-rule);justify-content:space-between;gap:var(--space-sm)}.nav-links.is-open{display:flex}.nav-links a{font-size:14px}.hero-main{grid-template-columns:minmax(0,1fr) 78px;gap:var(--space-md)}.portrait{width:78px;height:94px}h1{font-size:43px}.hero-position{font-size:20px}.hero-lead{grid-column:1 / -1}.hero-copy .hero-lead{max-width:none}.hero-copy{display:contents}.hero-copy h1,.hero-copy .hero-position{grid-column:1}.hero-copy h1{grid-row:1}.hero-copy .hero-position{grid-row:2;margin-top:0}.hero-main .portrait{grid-column:2;grid-row:1 / 3}.hero-copy .hero-lead{grid-column:1 / -1;margin-top:var(--space-xs)}.hero-copy .actions{grid-column:1 / -1;margin-top:var(--space-xs)}.hero-location{margin-top:var(--space-lg)}.impact dt{font-size:32px}.impact dt span{font-size:12px}.impact small{line-height:1.7}.impact dd{line-height:1.6}.capabilities{grid-template-columns:minmax(0,1fr)}.section-head{flex-direction:column;gap:var(--space-xs)}.education{flex-direction:column;gap:var(--space-sm)}.contact h2{font-size:32px}.contact-links a{font-size:17px}.case-header h1{font-size:32px}.case-meta{gap:var(--space-lg)}.site-footer{font-size:12px}.case-navigation .button{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.project-card:hover{transform:none}}

@media(max-width:520px){.hero-copy .hero-summary{grid-column:1 / -1;grid-row:2}.hero-copy .hero-summary .hero-lead{margin-top:var(--space-md)}.hero-main .portrait{grid-row:1}.hero-copy .hero-summary .hero-position{margin-top:0}}
.featured-work{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:var(--space-xl);align-items:center;border:1px solid var(--color-rule);border-radius:12px;background:var(--color-paper-2);overflow:clip;margin-bottom:var(--space-2xl)}.featured-work img{width:100%;height:210px;object-fit:cover;object-position:center}.featured-work>div{padding:var(--space-lg) var(--space-lg) var(--space-lg) 0}.featured-work h2{font-size:24px}.featured-work p{font-size:14px;color:var(--color-muted);margin-top:var(--space-xs)}.featured-work .text-link{margin-top:var(--space-xs)}.featured-work:hover h2{color:var(--color-blue)}
@media(max-width:520px){.featured-work{grid-template-columns:minmax(0,1fr);gap:0;margin-bottom:var(--space-xl)}.featured-work img{height:auto;aspect-ratio:1.8;object-fit:cover}.featured-work>div{padding:var(--space-lg)}.featured-work h2{font-size:23px}}
.project-visual{height:278px;aspect-ratio:auto;flex:none}.featured-work{margin-top:var(--space-xl);margin-bottom:0}abbr[title]{text-decoration:none}.job-body ul{font-size:16px}
@media(max-width:700px){.project-visual{height:210px}}
@media(max-width:520px){.project-visual{height:200px}.featured-work{margin-top:var(--space-xl);margin-bottom:0}}