:root{--paper:#f3f7fc;--ink:#20364f;--muted:#60738a;--green:#3266a0;--line:#d7e2ef;--white:#fbfdff;--gold:#557ca6;--soft:#e7eff9}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;font-size:15px}body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(#3266a005 1px,transparent 1px),linear-gradient(90deg,#3266a005 1px,transparent 1px);background-size:64px 64px;z-index:-1}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,a,input,select,textarea{outline-offset:5px}button{cursor:pointer}button:focus-visible,a:focus-visible{outline:2px solid var(--green)}header{position:sticky;top:0;z-index:20;background:#f3f7fcf2;border-bottom:1px solid 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.nav-contact{border:0;padding:0;background:transparent;color:inherit;font-size:inherit;line-height:inherit}.nav-contact:hover{color:var(--green)}

.experience-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.experience{background:var(--white)}@media(max-width:640px){.experience-grid{grid-template-columns:1fr}}
.case-figure{margin:26px 0;padding:23px;background:var(--white);border:1px solid var(--line);border-radius:10px}.case-figure figcaption{margin-bottom:22px}.case-figure figcaption strong{display:block;font-size:17px}.case-figure figcaption span{display:block;font-size:12px;color:var(--muted);margin-top:7px}.viz-node{padding:14px;border:1px solid #ccdaed;background:#edf4fc;border-radius:7px;min-width:0}.viz-node strong{display:block;font-size:13px}.viz-node small{display:block;font-size:11px;color:var(--muted);margin-top:5px}.viz-node small:empty{display:none}.viz-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.viz-layer{border:1px solid var(--line);padding:15px;border-radius:8px}.viz-layer label{margin:0 0 10px;font-size:10px;letter-spacing:1px}.viz-down{text-align:center;color:var(--green);line-height:1.5;font-size:18px;padding:5px}.viz-columns{display:grid;grid-template-columns:repeat(3,1fr);text-align:center;font-size:11px;margin-bottom:10px}.viz-map-row{display:grid;grid-template-columns:1fr 20px 1fr 20px 1fr;align-items:center;gap:5px;margin:9px 0}.viz-arrow{text-align:center;color:var(--green)}.viz-flow{max-width:550px;margin:auto}.viz-flow>.viz-node{text-align:center}.viz-branches{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:10px 0}.viz-branches .viz-node{background:#f4f7fc;border-style:dashed}.prototype-preview{display:grid;grid-template-columns:1fr 25px 1fr;align-items:center;margin-bottom:18px}.prototype-wrap{max-width:1120px;margin:auto;padding:35px 25px}.prototype-layout{display:grid;grid-template-columns:310px 1fr;gap:25px}.prototype-panel{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:22px}.prototype-result{margin-top:15px;padding:18px;border:1px solid var(--line);border-radius:8px}.prototype-result p{font-size:13px;color:var(--muted)}.prototype-result h3{font-size:17px}.prototype-bar{display:flex;justify-content:space-between;align-items:center;gap:15px}.prototype-bar .btn{font-size:11px;padding:7px 12px}.prototype-status{font-size:11px;color:var(--green)}@media(max-width:640px){.case-figure{padding:15px}.viz-grid{grid-template-columns:1fr}.viz-map-row .viz-node{padding:9px 6px}.viz-map-row .viz-node strong{font-size:11px}.viz-columns{font-size:10px}.prototype-layout{grid-template-columns:1fr}.prototype-preview{grid-template-columns:1fr}.prototype-preview .viz-arrow{transform:rotate(90deg)}.prototype-bar{align-items:flex-start}}

.experience-case{display:inline-block;margin-top:16px}

/* Capability browsing and resume access */
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.contact-actions .actions{margin-top:0;gap:12px}.contact-actions .actions .btn{white-space:nowrap}
/* Product-focused portfolio presentation */
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minmax(0,1fr)}.chapter:has(.showcase){padding-top:28px}.chapter:has(.showcase)>h2{margin-bottom:24px}.showcase{border:1px solid #cad9e8;border-radius:14px;overflow:hidden;background:#fff;box-shadow:0 12px 35px #22364b08;margin:24px 0}.showcase-top{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:24px;background:#f1f6fb}.showcase-top h3{font-size:20px;margin:7px 0 0;line-height:1.35}.showcase-top .text-link{font-size:12px;white-space:nowrap}.ui-kicker{font-size:10px;letter-spacing:1.2px;color:#587ba1}.showcase-tabs{display:flex;gap:5px;padding:12px 20px;border-bottom:1px solid #d8e4ef;overflow:auto}.showcase-tabs button{font-size:12px;white-space:nowrap;min-height:40px;padding:8px 14px;border:0;border-radius:6px;background:transparent;color:#60768a}.showcase-tabs button[aria-selected=true]{background:#e5effa;color:#205b98;font-weight:600}.showcase-body{padding:24px;background:#f7f9fc;min-width:0}.showcase-body h4{margin:0 0 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#22364b;border-radius:27px;width:290px;min-height:510px;background:white;padding:14px 14px 0;overflow:hidden;box-shadow:0 15px 20px #183d6414}.phone-status{display:flex;justify-content:space-between;font-size:9px;color:#516273}.phone-head{font-size:16px;font-weight:600;margin:20px 0}.phone-banner{background:#dcece8;padding:20px 16px;border-radius:10px;margin-bottom:20px}.phone-banner h4{font-size:21px;margin:10px 0}.phone-banner small{font-size:9px;color:#548075}.product-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}.product-pair>div{background:#f4f8fb;border-radius:8px;padding:13px 8px;display:flex;align-items:center;flex-direction:column;gap:10px}.product-pair strong{font-size:11px}.product-pair .ui-action{font-size:10px;padding:7px;min-height:34px}.bottle{height:55px;width:31px;background:#b0cbd8;border-top:9px solid #7da1b1;border-radius:4px 4px 8px 8px;display:grid;place-content:center;color:white}.bottle-1{background:#aacbbb;border-color:#6c9b83}.phone-bottom{font-size:10px;text-align:center;border-top:1px solid #e3eaf0;padding:17px 0;margin-top:20px;color:#65809a}.product-phone .ui-steps{grid-template-columns:1fr;margin:12px 0}.product-phone .ui-steps>div{padding:8px;display:flex;gap:10px;align-items:center;border-top:0;border-left:2px solid #90b1d4}.product-phone .ui-steps small,.product-phone .ui-steps span{margin:0}.mobile-narrative h3{font-size:25px;line-height:1.5;margin:12px 0}.mobile-narrative .ui-steps{grid-template-columns:1fr}.mobile-narrative .ui-steps>div{padding:10px 15px}.contract-path{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:16px 0 25px}.contract-path span{background:#e7f0f9;padding:16px;font-size:12px;border-radius:8px}.entity-map{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:10px 0 25px}.entity-map>div{background:#e5efea;padding:25px 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1fr;gap:14px}.ui-legend{font-size:10px;color:#7a8fa5}.demo-page{max-width:1140px;margin:auto;padding:30px 25px}.demo-nav{display:flex;justify-content:space-between;color:#3266a0;font-size:13px;margin-bottom:25px}.demo-page .showcase-body{padding:35px}.demo-page .mobile-stage{grid-template-columns:340px 1fr}.demo-page .product-phone{width:320px}.demo-page .showcase-top>a{display:none}
@media(max-width:1000px){.mobile-stage{grid-template-columns:1fr}.product-phone{margin:auto}.mobile-narrative{max-width:420px;margin:auto}.cover-preview{transform:scale(.43)}.cover-mobile .cover-preview{transform:scale(.34)}.ui-tiles{grid-template-columns:1fr 1fr}.ui-steps{grid-template-columns:1fr 1fr}.cockpit-analysis{grid-template-columns:1fr}.service-board{grid-template-columns:1fr}.demo-page .mobile-stage{grid-template-columns:1fr}.demo-page .product-phone{max-width:100%}}
@media(max-width:640px){.navlinks .nav-resume{display:inline}.hero{padding:48px 0 38px}.hero h1{font-size:39px}.project-card-copy{padding:22px}.experience h3{font-size:23px}.work-cover{height:280px;padding:23px}.cover-preview{transform:scale(.43)}.cover-mobile .cover-preview{transform:scale(.34)}.showcase-top{padding:18px;align-items:flex-start;flex-direction:column}.showcase-top h3{font-size:19px}.showcase-body{padding:16px}.showcase-tabs{padding:10px}.showcase-tabs button{padding:8px 10px;font-size:11px}.ui-split{grid-template-columns:1fr}.ui-tiles{grid-template-columns:1fr 1fr;gap:8px}.ui-tiles div{padding:12px}.ui-tiles strong{font-size:14px}.ui-steps{gap:8px}.contract-path{flex-wrap:wrap}.entity-map{gap:7px}.entity-map>div{padding:18px 8px;font-size:12px}.entity-map small{font-size:8px;overflow-wrap:anywhere}.segment-map>div{padding:18px 12px}.demo-page{padding:20px 14px}.demo-page .showcase-body{padding:16px}.product-phone{width:260px;max-width:100%}.case-deliverables{font-size:11px}.chapter .showcase{margin-left:0;margin-right:0}}

.business-flow{margin:0 0 36px;padding:28px;background:#f7f9fc;border:1px solid #dae2ed;border-radius:20px}.business-flow h3{margin:10px 0 20px}.flow-scroll{overflow-x:auto}.business-flow svg{display:block;width:100%;min-width:720px;font-family:Arial,"Microsoft YaHei",sans-serif}.flow-legend{display:flex;gap:24px;flex-wrap:wrap;color:#65758a;font-size:12px;margin-top:16px}@media(max-width:600px){.business-flow{padding:18px}.business-flow svg{min-width:760px}.flow-legend{gap:8px}}