@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.relative{position:relative}.start{inset-inline-start:var(--spacing)}.block{display:block}.grid{display:grid}.hidden{display:none}.table{display:table}}:root{--ink:#14213d;--muted:#62708a;--paper:#f5f7fc;--white:#fff;--line:#d8dfec;--blue:#315efb;--violet:#7957e8;--coral:#f27b55;--mint:#2ca88f;--soft-blue:#e8edff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;font-family:Microsoft YaHei UI,PingFang SC,Noto Sans SC,sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{color:inherit}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--coral);outline-offset:3px}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}main{background-image:radial-gradient(circle at 1px 1px,#315efb1a 1px,#0000 0);background-size:25px 25px;min-height:100vh;overflow:hidden}.topbar{border-bottom:1px solid var(--line);align-items:center;gap:28px;width:min(1180px,100% - 40px);min-height:76px;margin:0 auto;display:flex}.brand{align-items:center;gap:11px;font-weight:800;display:flex}.brand-symbol{background:var(--ink);width:38px;height:38px;color:var(--white);place-items:center;font:800 17px/1 ui-monospace,monospace;display:grid;transform:rotate(-5deg)}nav{color:var(--muted);gap:25px;margin-left:auto;font-size:13px;display:flex}nav a:hover{color:var(--blue)}nav a[aria-current=page]{color:var(--blue);font-weight:800}.resume-link{border:1px solid var(--ink);background:#ffffffb3;padding:9px 14px;font-size:12px;font-weight:700}.hero{grid-template-columns:1.18fr .82fr;align-items:center;gap:60px;width:min(1180px,100% - 40px);min-height:680px;margin:0 auto;padding:76px 0 92px;display:grid}.kicker,.section-label{color:var(--blue);letter-spacing:.13em;margin:0 0 18px;font:800 11px/1.5 ui-monospace,Consolas,monospace}.kicker span{color:#14745f;background:#dff7ef;margin-right:12px;padding:5px 8px;display:inline-block}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.065em;margin-bottom:27px;font-size:clamp(46px,6.3vw,82px);line-height:1.06}h1 em{color:var(--blue);font-style:normal;display:block}.hero-text{max-width:720px;color:var(--muted);font-size:18px;line-height:1.95}.role-row{flex-wrap:wrap;gap:9px;margin:30px 0;display:flex}.role-row span{border:1px solid var(--line);color:#495872;background:#ffffffad;padding:7px 12px;font-size:12px}.hero-actions{flex-wrap:wrap;gap:12px;display:flex}.primary-action,.secondary-action{justify-content:center;align-items:center;min-height:48px;padding:0 21px;font-size:13px;font-weight:800;display:inline-flex}.primary-action{background:var(--ink);color:var(--white)}.secondary-action{border:1px solid var(--ink);background:#ffffffa3}.hero-orbit{place-items:center;min-height:460px;display:grid;position:relative}.hero-orbit:before{content:"";background:var(--soft-blue);border-radius:50%;width:330px;height:330px;position:absolute;box-shadow:38px -28px #f4e9ff,-34px 30px #e5f8f2}.orbit{border:1px solid #315efb54;border-radius:50%;animation:18s linear infinite spin;position:absolute}.orbit-one{width:360px;height:360px}.orbit-two{width:270px;height:270px;animation-duration:12s;animation-direction:reverse}.orbit span{background:var(--white);color:var(--blue);letter-spacing:.08em;padding:4px 8px;font:700 9px/1 ui-monospace,monospace;position:absolute;top:-13px;left:50%}.core{z-index:2;text-align:center;background:var(--ink);width:160px;height:160px;color:var(--white);border-radius:46% 54% 42% 58%;place-content:center;display:grid;box-shadow:18px 18px #315efb2e}.core strong{letter-spacing:-.08em;font:800 43px/1 ui-monospace,monospace}.core small{color:#aebdfc;letter-spacing:.13em;margin-top:9px;font:700 9px/1 ui-monospace,monospace}.signal{z-index:3;border:1px solid var(--ink);background:var(--white);place-items:center;width:42px;height:42px;font:800 10px/1 ui-monospace,monospace;display:grid;position:absolute}.signal-a{top:25%;left:7%;transform:rotate(-7deg)}.signal-b{bottom:27%;right:5%;transform:rotate(8deg)}.signal-c{background:var(--coral);color:var(--white);border-color:var(--coral);top:15%;right:13%}@keyframes spin{to{transform:rotate(360deg)}}.ai-section{background:var(--ink);color:var(--white);grid-template-columns:.78fr 1.22fr;align-items:center;gap:70px;padding:100px max(20px,50vw - 590px);display:grid}.ai-intro h2,.section-heading h2,.method-copy h2,.contact-section h2{letter-spacing:-.045em;margin-bottom:23px;font-size:clamp(35px,4.7vw,60px);line-height:1.12}.ai-intro>p:not(.section-label){color:#bbc7dc}.ai-principles{flex-wrap:wrap;gap:8px;margin-top:28px;display:flex}.ai-principles span{color:#aebdfc;border:1px solid #ffffff38;padding:6px 9px;font-size:11px}.chat-shell{color:var(--ink);background:#f8f9fd;border:1px solid #415070;box-shadow:16px 16px #29395c}.chat-head{border-bottom:1px solid var(--line);background:var(--white);justify-content:space-between;align-items:center;gap:15px;min-height:58px;padding:0 18px;display:flex}.chat-head>div{align-items:center;gap:9px;display:flex}.chat-head strong{font-size:13px}.chat-head>span{color:var(--muted);letter-spacing:.08em;font:700 9px/1 ui-monospace,monospace}.online-dot{background:var(--mint);border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 4px #2ca88f24}.chat-messages{height:320px;padding:20px;overflow-y:auto}.message{grid-template-columns:28px minmax(0,1fr);align-items:start;gap:10px;margin-bottom:15px;display:grid}.message>span{background:var(--ink);width:28px;height:28px;color:var(--white);place-items:center;font:800 9px/1 ui-monospace,monospace;display:grid}.message p{border:1px solid var(--line);background:var(--white);white-space:pre-wrap;width:fit-content;max-width:88%;margin:0;padding:10px 13px;font-size:13px;line-height:1.75}.message.user{grid-template-columns:minmax(0,1fr) 28px}.message.user>span{background:var(--blue);grid-column:2}.message.user p{background:var(--soft-blue);border-color:#cbd5ff;grid-row:1;justify-self:end}.typing i{background:var(--blue);border-radius:50%;width:4px;height:4px;margin-left:4px;animation:1s infinite alternate blink;display:inline-block}.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}@keyframes blink{to{opacity:.2;transform:translateY(-2px)}}.starters{gap:7px;padding:0 18px 13px;display:flex;overflow-x:auto}.starters button{border:1px solid var(--line);background:var(--white);color:#53627d;cursor:pointer;flex:none;padding:7px 10px;font-size:10px}.starters button:hover{border-color:var(--blue);color:var(--blue)}.chat-form{border-top:1px solid var(--line);background:var(--white);grid-template-columns:1fr auto;gap:8px;padding:14px 16px;display:grid}.chat-form input{border:1px solid var(--line);min-width:0;height:44px;color:var(--ink);background:#f7f8fc;padding:0 13px}.chat-form button{background:var(--blue);width:62px;color:var(--white);cursor:pointer;border:0;font-size:12px;font-weight:800}.chat-form button:disabled,.starters button:disabled{opacity:.5;cursor:default}.chat-notice{background:var(--white);color:#8590a5;margin:0;padding:0 16px 13px;font-size:9px}.strength-section,.work-section{width:min(1180px,100% - 40px);margin:0 auto;padding:112px 0}.section-heading{grid-template-columns:1.1fr .9fr;align-items:end;gap:45px;margin-bottom:52px;display:grid}.section-heading .section-label{grid-column:1/-1}.section-heading h2{margin-bottom:0}.section-heading>p:last-child{color:var(--muted);margin:0}.strength-grid{border:1px solid var(--line);grid-template-columns:repeat(3,1fr);display:grid}.strength-grid article{border-right:1px solid var(--line);background:#fffc;min-height:315px;padding:31px}.strength-grid article:last-child{border-right:0}.strength-key{color:var(--blue);letter-spacing:.13em;font:800 10px/1 ui-monospace,monospace}.strength-grid h3{margin:34px 0 15px;font-size:28px}.strength-grid p{color:var(--muted);font-size:14px}.strength-grid article>div{flex-wrap:wrap;gap:7px;margin-top:27px;display:flex}.strength-grid article>div span{background:var(--soft-blue);color:#495c9d;padding:5px 8px;font-size:10px}.work-section{padding-top:55px}.work-list{border-top:1px solid var(--ink)}.work-card{border-bottom:1px solid var(--line);grid-template-columns:75px 1fr;gap:25px;padding:52px 0;display:grid}.work-number{color:var(--blue);font:800 18px/1 ui-monospace,monospace}.work-type{color:var(--violet);letter-spacing:.1em;margin-bottom:10px;font:800 11px/1 ui-monospace,monospace}.work-card h3{letter-spacing:-.035em;margin-bottom:14px;font-size:clamp(29px,3.5vw,44px)}.work-lead{color:var(--muted);font-size:16px}.work-detail{grid-template-columns:1.15fr .85fr;gap:40px;margin:30px 0 25px;display:grid}.work-detail h4{color:var(--blue);margin:0 0 8px;font-size:12px}.work-detail p,.work-detail li{color:#53627b;font-size:13px}.work-detail ul{margin:0;padding-left:18px}.stack-row{flex-wrap:wrap;gap:7px;display:flex}.stack-row span{border:1px solid var(--line);color:var(--muted);background:#ffffff8c;padding:5px 9px;font:10px/1.4 ui-monospace,monospace}.learning-preview{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;grid-template-columns:.82fr 1.18fr;align-items:center;gap:78px;padding:105px max(20px,50vw - 590px);display:grid}.learning-preview-intro h2{letter-spacing:-.045em;margin-bottom:22px;font-size:clamp(35px,4.7vw,58px);line-height:1.14}.learning-preview-intro>p:not(.section-label){color:var(--muted)}.learning-loop{align-items:center;gap:8px;margin:28px 0 31px;display:flex}.learning-loop span{color:var(--ink);flex:none;font:800 10px/1 ui-monospace,monospace}.learning-loop i{background:var(--line);flex:1;height:1px}.learning-preview-card{box-shadow:14px 14px 0 var(--ink);background:#f4f6ff;border:1px solid #bcc8ee;padding:34px 40px 37px 76px;position:relative;overflow:hidden}.learning-preview-card:before{content:"";background:#f2a18a;width:1px;position:absolute;top:0;bottom:0;left:48px}.learning-preview-card:after{content:"";pointer-events:none;background:repeating-linear-gradient(#0000 0 38px,#315efb13 38px 39px);position:absolute;inset:0}.learning-preview-card>*{z-index:1;position:relative}.preview-card-top{color:#667396;letter-spacing:.11em;justify-content:space-between;gap:18px;font:800 9px/1.4 ui-monospace,monospace;display:flex}.preview-margin-note{z-index:2;color:#a64b32;text-align:center;transform-origin:0 0;font:700 8px/1.45 ui-monospace,monospace;position:absolute;top:92px;left:10px;transform:rotate(-90deg)translate(-100%)}.preview-margin-note strong{color:var(--ink)}.preview-category{color:var(--violet);letter-spacing:.12em;margin:54px 0 10px;font:800 10px/1 ui-monospace,monospace}.learning-preview-card h3{letter-spacing:-.04em;max-width:650px;margin-bottom:17px;font-size:clamp(29px,3.5vw,44px);line-height:1.2}.learning-preview-card h3 a:hover{color:var(--blue)}.learning-preview-card>p:not(.preview-category){color:#586682;max-width:680px;font-size:14px}.preview-tags{flex-wrap:wrap;gap:7px;margin:25px 0;display:flex}.preview-tags span{color:#4c5e9c;background:#e2e7ff;padding:5px 8px;font-size:10px}.text-link{color:var(--blue);align-items:center;gap:8px;font-size:12px;font-weight:800;display:inline-flex}.text-link span{transition:transform .18s}.text-link:hover span{transform:translate(4px)}.learning-page,.article-page,.category-page{background-color:#f8f9fd}.learning-hero{grid-template-columns:1.15fr .85fr;align-items:center;gap:78px;width:min(1180px,100% - 40px);margin:0 auto;padding:82px 0 100px;display:grid}.learning-hero h1{max-width:770px;margin-bottom:27px;font-size:clamp(48px,6.3vw,78px)}.learning-hero h1 em{color:var(--violet)}.learning-hero-copy>p:last-child{max-width:710px;color:var(--muted);font-size:17px}.learning-hero-actions{flex-wrap:wrap;gap:10px;margin-top:29px;display:flex}.thinking-ledger{border:1px solid var(--ink);background:var(--white);box-shadow:12px 12px 0 var(--soft-blue);padding:37px 34px 32px;position:relative}.thinking-ledger:before{content:"";background:var(--coral);width:3px;position:absolute;top:0;bottom:0;left:20px}.ledger-mark{color:var(--blue);letter-spacing:.12em;font:800 9px/1 ui-monospace,monospace}.thinking-ledger blockquote{letter-spacing:-.025em;margin:34px 0;font-size:24px;font-weight:800;line-height:1.55}.thinking-ledger dl{border-top:1px solid var(--line);margin:0}.thinking-ledger dl div{border-bottom:1px solid var(--line);grid-template-columns:70px 1fr;gap:14px;padding:12px 0;display:grid}.thinking-ledger dt{color:var(--blue);font-size:12px;font-weight:800}.thinking-ledger dd{color:var(--muted);margin:0;font-size:12px}.contribution-section{background:var(--white);border-top:1px solid var(--line);padding:90px max(20px,50vw - 590px) 95px}.contribution-heading{justify-content:space-between;align-items:end;gap:45px;margin-bottom:36px;display:flex}.contribution-heading h2{letter-spacing:-.045em;margin:0 0 14px;font-size:clamp(37px,4.8vw,58px);line-height:1.13}.contribution-heading>div:first-child>p:last-child{color:var(--muted);margin:0;font-size:13px}.contribution-summary{flex:none;gap:29px;display:flex}.contribution-summary span{color:var(--muted);text-align:center;font:700 9px/1.45 ui-monospace,monospace}.contribution-summary strong{color:var(--ink);margin-bottom:7px;font-size:25px;display:block}.contribution-board{border:1px solid var(--line);background:#f8f9fd;padding:26px 27px 20px}.contribution-scroll{grid-template-columns:22px max-content;gap:9px;padding-bottom:8px;display:grid;overflow-x:auto}.weekday-labels{color:#8b96aa;grid-template-rows:repeat(7,11px);gap:3px;font:700 8px/11px ui-monospace,monospace;display:grid}.weekday-labels span:first-child{grid-row:2}.weekday-labels span:nth-child(2){grid-row:4}.weekday-labels span:nth-child(3){grid-row:6}.contribution-cells{grid-template-rows:repeat(7,11px);grid-auto-columns:11px;grid-auto-flow:column;gap:3px;display:grid}.contribution-cell,.contribution-legend i{background:#e7eaf1;border:1px solid #14213d14;width:11px;height:11px;display:block}.contribution-cell.level-1,.contribution-legend .level-1{background:#cdd7ff}.contribution-cell.level-2,.contribution-legend .level-2{background:#93a9ff}.contribution-cell.level-3,.contribution-legend .level-3{background:#5c78f5}.contribution-cell.level-4,.contribution-legend .level-4{background:var(--blue)}.contribution-cell.is-future{background:0 0;border-color:#0000}.contribution-legend{color:#7e899e;justify-content:flex-end;align-items:center;gap:5px;margin-top:11px;font:700 8px/1 ui-monospace,monospace;display:flex}.knowledge-map{background:var(--ink);color:var(--white);padding:100px max(20px,50vw - 590px) 110px}.knowledge-map-heading{justify-content:space-between;align-items:end;gap:40px;margin-bottom:48px;display:flex}.knowledge-map-heading .section-label{color:#9eb0ff}.knowledge-map-heading h2{letter-spacing:-.05em;max-width:720px;margin:0;font-size:clamp(39px,5vw,62px);line-height:1.12}.knowledge-stats{gap:24px;display:flex}.knowledge-stats span{color:#9ba9c6;text-align:center;font:700 9px/1.4 ui-monospace,monospace}.knowledge-stats strong{color:var(--white);margin-bottom:7px;font-size:23px;display:block}.category-grid{border-top:1px solid #405071;border-left:1px solid #405071;grid-template-columns:repeat(4,1fr);display:grid}.category-card{background:#182746;border-bottom:1px solid #405071;border-right:1px solid #405071;min-height:330px;padding:27px 25px 24px;position:relative;overflow:hidden}.category-card:before{content:"";background:var(--category-accent);width:0;height:4px;transition:width .2s;position:absolute;top:0;left:0}.category-card:hover:before{width:100%}.category-card:hover{background:#1d2e50}.category-blue{--category-accent:#6f8cff}.category-violet{--category-accent:#a58aff}.category-mint{--category-accent:#58cdb7}.category-coral{--category-accent:#f29a7e}.category-card-top{color:var(--category-accent);letter-spacing:.1em;justify-content:space-between;align-items:center;font:800 9px/1 ui-monospace,monospace;display:flex}.category-card-top strong{color:#6f7f9f;font-size:13px}.category-card h3{margin:53px 0 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