:root{--ink:#171717;--muted:#6f716f;--paper:#f7f7f5;--white:#fff;--line:#d9dad6;--accent:#b8472f;--dark:#20221f;--max:1120px;--reading:720px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-6:24px;--space-8:32px;--space-12:48px;--space-16:64px;--radius-sm:4px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:ibm plex sans,noto sans sc,microsoft yahei,pingfang sc,sans-serif;font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}.shell{width:min(var(--max),calc(100% - 48px));margin:auto}.site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid var(--line);background:rgba(247,247,245,.96);backdrop-filter:blur(12px)}.nav-wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.wordmark{font-size:18px;font-weight:800;letter-spacing:0}.wordmark span{color:var(--accent)}nav{display:flex;gap:28px}nav a{color:var(--muted);font-size:14px}nav a:hover,nav a.active{color:var(--ink)}.hero{padding:112px 0 100px}.eyebrow,.card-meta,.period{margin:0;color:var(--accent);font-size:13px;font-weight:700;letter-spacing:0}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:ibm plex sans,noto sans sc,microsoft yahei,sans-serif;font-weight:700;letter-spacing:0;line-height:1.15}.hero h1{max-width:780px;margin:16px 0 36px;font-size:clamp(44px,7vw,84px)}.hero-intro{max-width:570px;color:var(--muted);font-size:18px}.hero-intro p{margin-bottom:24px}.text-link{display:inline-flex;align-items:center;gap:8px;border-bottom:1px solid var(--ink);padding-bottom:3px;font-size:14px;font-weight:700}.text-link span{color:var(--accent);font-size:20px;line-height:1;transition:transform .2s ease}.text-link:hover span{transform:translateX(4px)}.proof-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.proof-strip div{min-height:132px;padding:26px 20px;border-right:1px solid var(--line)}.proof-strip div:first-child{border-left:1px solid var(--line)}.proof-strip strong{display:block;font-family:Georgia,songti sc,serif;font-size:33px;line-height:1.2}.proof-strip span{display:block;margin-top:8px;color:var(--muted);font-size:13px}.section{padding:92px 0}.section-heading{margin-bottom:38px}.section-heading h2{margin:10px 0 0;font-size:36px}.inline-heading{display:flex;align-items:end;justify-content:space-between;gap:24px}.timeline{border-top:1px solid var(--line)}.timeline article{display:grid;grid-template-columns:210px 1fr;gap:28px;padding:30px 0;border-bottom:1px solid var(--line)}.timeline h3{margin-bottom:7px;font-size:24px}.timeline div p{margin:0;color:var(--muted);max-width:610px}.project-band{background:var(--dark);color:var(--white)}.project-band .text-link{border-color:var(--white)}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(255,255,255,.25)}.project-card{position:relative;min-height:265px;padding:28px 28px 48px;border-right:1px solid rgba(255,255,255,.25);transition:background .2s ease}.project-card:first-child{border-left:1px solid rgba(255,255,255,.25)}.project-card:hover{background:rgba(255,255,255,8%)}.project-card h3{font-size:27px;margin:16px 0 14px}.project-card p:not(.card-meta){color:#cfdbd8;margin:0}.arrow{color:var(--accent);font-size:26px;line-height:1}.project-card .arrow{position:absolute;bottom:24px;left:28px}.post-list{border-top:1px solid var(--line)}.post-row{display:grid;grid-template-columns:120px minmax(160px,1.25fr)2fr 32px;align-items:center;gap:24px;padding:25px 0;border-bottom:1px solid var(--line)}.post-row:hover h3{color:var(--accent)}.post-row h3{margin:0;font-size:22px;transition:color .2s ease}.post-row p{margin:0;color:var(--muted)}.post-date,.article-date{color:var(--muted);font-size:13px}.site-footer{padding:30px 0;border-top:1px solid var(--line);color:var(--muted);font-size:13px}.site-footer .shell{display:flex;justify-content:space-between;gap:16px}.archive-header{padding:100px 0 65px}.archive-header h1{max-width:650px;margin:14px 0 0;font-size:48px}.archive-list{padding-bottom:100px}.archive-item{display:grid;grid-template-columns:150px 1fr 32px;gap:28px;align-items:start;padding:30px 0;border-top:1px solid var(--line)}.archive-item:last-child{border-bottom:1px solid var(--line)}.archive-item h2{margin:7px 0 10px;font-size:28px}.archive-item h2 a:hover{color:var(--accent)}.archive-item div>p:last-child{margin:0;color:var(--muted)}.link-arrow{padding-top:24px}.article{max-width:800px;padding:100px 0}.article header{max-width:700px;border-bottom:1px solid var(--line);padding-bottom:35px}.article h1{margin:14px 0 24px;font-size:54px}.article-date{margin:0}.article-content{max-width:680px;padding:45px 0;font-size:17px}.article-content h2{font-size:30px;margin:42px 0 16px}.article-content p{margin-bottom:22px}.article-content ul{padding-left:22px;margin-bottom:24px}.back-link{margin-top:10px}.article-cover{margin:36px 0 0}.article-cover img{display:block;width:100%;height:auto;aspect-ratio:2.35/1;object-fit:cover;object-position:center;border:1px solid var(--line);background:#eceee9}.card-cover{display:block;max-width:420px;margin:0 0 14px}.card-cover img{display:block;width:100%;height:auto;aspect-ratio:2.35/1;object-fit:cover;object-position:center;border:1px solid var(--line);background:#eceee9;transition:opacity .2s ease}.card-cover:hover img{opacity:.88}.featured-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(340px,100%),1fr));gap:26px}.featured-card{display:flex;flex-direction:column;border:1px solid var(--line);background:var(--white);transition:border-color .2s ease}.featured-card:hover{border-color:var(--ink)}.featured-card:hover h3{color:var(--accent)}.featured-cover{display:block;overflow:hidden;background:#0b1418}.featured-cover img{display:block;width:100%;height:auto;aspect-ratio:2.35/1;object-fit:cover;object-position:center;transition:transform .45s ease}.featured-card:hover .featured-cover img{transform:scale(1.035)}.featured-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:24px 26px 26px}.featured-body h3{margin:0;font-size:25px;line-height:1.3;transition:color .2s ease}.featured-body p{margin:0;color:var(--muted)}.featured-body .arrow{margin-top:auto;padding-top:10px}@media(max-width:700px){.shell{width:min(var(--max),calc(100% - 32px))}.nav-wrap{min-height:64px}.wordmark{font-size:24px}nav{gap:16px}nav a{font-size:13px}.hero{padding:72px 0}.hero h1{font-size:46px}.hero-intro{font-size:16px}.section{padding:64px 0}.section-heading h2{font-size:31px}.inline-heading{align-items:start;flex-direction:column;gap:16px}.timeline article{grid-template-columns:1fr;gap:8px;padding:24px 0}.project-grid{grid-template-columns:1fr}.project-card,.project-card:first-child{min-height:210px;border-left:0;border-bottom:1px solid rgba(255,255,255,.25)}.project-card:last-child{border-bottom:0}.post-row{grid-template-columns:1fr 26px;gap:8px 16px;padding:22px 0}.post-date{grid-column:1}.post-row h3{grid-column:1;font-size:21px}.post-row p{grid-column:1}.post-row .arrow{grid-column:2;grid-row:1/span 3;align-self:center}.site-footer .shell{flex-direction:column;gap:5px}.archive-header{padding:70px 0 48px}.archive-header h1,.article h1{font-size:39px}.archive-list{padding-bottom:70px}.archive-item{grid-template-columns:1fr 28px;gap:10px 16px}.archive-item .post-date{grid-column:1}.archive-item div{grid-column:1}.link-arrow{grid-column:2;grid-row:1/span 2;align-self:center;padding:0}.article{padding:70px 0}.article-content{padding:36px 0}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important}}@media(max-width:700px){.proof-strip{grid-template-columns:repeat(2,1fr)}.proof-strip div:nth-child(3){border-left:1px solid var(--line)}.proof-strip div{min-height:110px;padding:20px 16px}.proof-strip strong{font-size:28px}}@media(max-width:700px){.experience-projects{padding-top:8px}.experience-projects .resume-projects{display:block}.experience-projects .resume-project{padding:24px 20px 26px;border-right:0}.experience-projects .resume-project header{align-items:flex-start;flex-direction:column;gap:8px}.experience-projects .resume-project h3{font-size:21px}.experience-next{padding-top:42px}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border:1px solid var(--ink);border-radius:2px;font-size:14px;font-weight:700;font-family:inherit;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--white)}.btn-primary:hover{background:#cf5a3c;border-color:#cf5a3c}.btn-ghost{background:0 0;color:var(--ink)}.btn-ghost:hover{background:var(--ink);color:var(--white)}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 28px}.tag-row.small{margin:10px 0 0}.tag{display:inline-block;padding:3px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:12px}.series-chip{display:inline-block;margin-top:4px;color:var(--accent);font-size:11px;font-weight:700}.site-footer{padding:52px 0 26px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:32px;padding-bottom:32px}.footer-mark{margin:0 0 10px;font-family:Georgia,serif;font-size:22px;font-weight:700;color:var(--ink)}.footer-mark span{color:var(--accent)}.footer-note{margin:0;max-width:360px;color:var(--muted);font-size:13.5px}.footer-col p{margin:0 0 6px;font-size:13.5px}.footer-col a{color:var(--muted);border-bottom:1px solid transparent}.footer-col a:hover{color:var(--accent);border-bottom-color:var(--accent)}.footer-label{color:var(--ink);font-weight:700;font-size:13px;letter-spacing:0}.footer-base{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:20px;border-top:1px solid var(--line)}.footer-legal{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;margin:0}.icp-link{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:12.5px}.icp-link:hover{color:var(--accent)}.police-link img{width:14px;height:15px}.hero-status{display:flex;align-items:center;gap:8px;color:var(--ink);font-size:14.5px;font-weight:600}.dot-live{flex:none;width:8px;height:8px;border-radius:50%;background:#2fae6a;box-shadow:0 0 0 3px rgba(47,174,106,.18)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}.ai-lead{max-width:640px;margin:-14px 0 34px;color:var(--muted)}.contact-band{background:var(--dark);color:var(--white);padding:72px 0}.contact-band h2{margin:10px 0 16px;font-size:34px}.contact-band p{color:#c6d4d1}.contact-inner{display:grid;grid-template-columns:1.5fr 1fr;gap:48px;align-items:center}.contact-list{list-style:none;margin:24px 0;padding:0;display:grid;gap:10px}.contact-list li{display:flex;gap:14px;align-items:baseline;font-size:15px}.contact-label{flex:none;min-width:44px;color:#8fa4a1;font-size:13px}.contact-list a{color:var(--white);border-bottom:1px solid rgba(255,255,255,.35)}.contact-list a:hover{border-bottom-color:var(--accent);color:var(--accent)}.contact-band .btn-ghost{border-color:rgba(255,255,255,.5);color:var(--white)}.contact-band .btn-ghost:hover{background:var(--white);border-color:var(--white);color:var(--dark)}.contact-note{font-size:13.5px}.contact-note a{color:var(--accent);border-bottom:1px solid var(--accent)}.qr-card{margin:0;text-align:center}.wechat-qr{display:block;width:180px;height:180px;object-fit:cover;margin:0 auto 10px;background:var(--white);padding:8px;border-radius:4px}.qr-card figcaption{color:#9fb2af;font-size:12.5px}.article-content h3{font-size:24px;margin:38px 0 14px}.article-content h4{font-family:Georgia,songti sc,serif;font-size:19px;margin:28px 0 10px}.article-content ol{padding-left:22px;margin-bottom:24px}.article-content li{margin-bottom:7px}.article-content li>ul,.article-content li>ol{margin-top:7px;margin-bottom:0}.article-content a{color:#b8452b;border-bottom:1px solid rgba(183,69,43,.35)}.article-content a:hover{border-bottom-color:var(--accent)}.article-content strong{color:var(--ink)}.article-content hr{border:0;border-top:1px solid var(--line);margin:40px 0}.article-content img{max-width:100%;height:auto}.article-content blockquote{margin:26px 0;padding:16px 22px;border-left:3px solid var(--accent);background:var(--white);color:#4d5a5f}.article-content blockquote p{margin-bottom:12px}.article-content blockquote p:last-child{margin-bottom:0}.article-content blockquote strong{color:var(--ink)}.article-content code{font-family:cascadia mono,Consolas,courier new,monospace;font-size:.9em;background:#eceee9;padding:2px 5px;border-radius:4px;word-break:break-word}.article-content pre{margin:26px 0;padding:18px 20px;background:var(--dark);color:#e6eeec;border-radius:6px;overflow-x:auto;font-size:13.5px;line-height:1.7}.article-content pre code{background:0 0;padding:0;color:inherit;font-size:inherit}.table-scroll{overflow-x:auto;margin:28px 0}.table-scroll table{margin:0}.table-scroll>table{min-width:520px}.article-content table{width:100%;border-collapse:collapse;margin:28px 0;font-size:14.5px}.article-content th,.article-content td{padding:10px 13px;border:1px solid var(--line);text-align:left;vertical-align:top;line-height:1.6}.article-content thead th{background:#eaede7;font-weight:700;white-space:nowrap}.article-content tbody tr:nth-child(even){background:rgba(255,255,255,.65)}.heading-anchor{margin-left:8px;color:var(--line);font-size:.7em;border-bottom:0;opacity:0;transition:opacity .15s ease}h2:hover .heading-anchor,h3:hover .heading-anchor{opacity:1}.series-box{max-width:680px;margin:0 0 34px;padding:20px 24px;background:var(--white);border:1px solid var(--line);border-left:3px solid var(--accent)}.series-title{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:0 0 12px;font-weight:700;font-size:14.5px}.series-title span{color:var(--muted);font-size:12.5px;font-weight:400}.series-list{list-style:none;margin:0;padding:0;display:grid;gap:6px}.series-list a{display:flex;gap:12px;align-items:baseline;font-size:14.5px;color:var(--muted)}.series-list a:hover{color:var(--accent)}.series-list li.current a{color:var(--ink);font-weight:700}.series-no{flex:none;width:56px;color:var(--accent);font-size:12px;font-weight:700}.article-cta{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;max-width:680px;margin:10px 0 34px;padding:24px 26px;background:var(--white);border:1px solid var(--line)}.cta-title{margin:0 0 6px;font-weight:700}.cta-desc{margin:0;color:var(--muted);font-size:14px}.cta-actions{display:flex;flex-wrap:wrap;gap:10px}.fig-embed{margin:32px 0}.fig-label{margin:0 0 8px;color:var(--accent);font-size:12.5px;font-weight:700}.fig-frame-wrap{border:1px solid var(--line);background:var(--white)}.fig-frame{display:block;width:100%;height:620px;border:0;background:#eef1f6}.fig-embed figcaption{display:flex;justify-content:space-between;gap:16px;margin-top:10px;color:var(--muted);font-size:12.5px}.fig-open{flex:none;color:var(--accent);border-bottom:1px solid rgba(231,111,81,.4)}@media(min-width:1100px){.fig-embed{width:900px;margin-left:-110px}.fig-embed figcaption{max-width:680px}}.handdraw-fig{margin:32px 0}.handdraw-fig img{display:block;width:100%;border:1px solid var(--line);background:var(--white)}.handdraw-fig figcaption{margin-top:10px;color:var(--muted);font-size:12.5px;text-align:center}@media(min-width:1100px){.handdraw-fig{width:900px;margin-left:-110px}}.archive-intro{max-width:660px;margin-top:26px;color:var(--muted)}.archive-intro p{margin-bottom:14px}.series-section{padding-top:0}.series-count{color:var(--muted);font-size:13px}.series-cards{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.series-cards>li{border-bottom:1px solid var(--line)}.series-card{display:grid;grid-template-columns:96px 1fr 32px;gap:22px;align-items:start;padding:26px 0}.series-card:hover h3{color:var(--accent)}.series-card .series-no{width:auto;padding-top:4px}.series-card-body h3{margin:0 0 8px;font-size:25px;transition:color .2s ease}.series-card-body p{margin:0 0 6px;color:var(--muted)}.series-card .arrow{align-self:center}.series-more{margin:22px 0 0}.resume-hero{padding:96px 0 64px}.resume-hero h1{margin:14px 0 10px;font-size:clamp(40px,6vw,68px)}.resume-role{margin:0 0 26px;color:var(--accent);font-size:17px;font-weight:700}.resume-intro{max-width:660px;margin:0 0 30px;color:var(--muted);font-size:17px}.resume-actions{display:flex;flex-wrap:wrap;gap:12px}.resume-meta{display:flex;flex-wrap:wrap;gap:22px;list-style:none;margin:30px 0 0;padding:0;color:var(--muted);font-size:13.5px}.resume-meta li{position:relative}.resume-meta li+li::before{content:"·";position:absolute;left:-13px}.resume-section{padding-bottom:0}.skill-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line)}.skill-card{padding:26px 40px 28px 0;border-bottom:1px solid var(--line)}.skill-card:nth-child(even){padding:26px 0 28px 40px;border-left:1px solid var(--line)}.skill-card h3{margin:0 0 14px;font-size:20px}.skill-card ul{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}.skill-card li{padding:4px 11px;background:var(--white);border:1px solid var(--line);border-radius:999px;color:#4d5a5f;font-size:13px}.resume-timeline h3{font-size:22px;margin-bottom:4px}.timeline-role{margin:0 0 12px;color:var(--accent);font-size:13.5px;font-weight:700}.point-list{margin:0;padding-left:20px}.point-list li{margin-bottom:7px;color:var(--muted);max-width:660px}.point-list li:last-child{margin-bottom:0}.band-note{margin:14px 0 0;max-width:620px;color:#9fb2af;font-size:13.5px}.resume-projects{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid rgba(255,255,255,.25)}.resume-project{padding:30px 30px 34px;border-right:1px solid rgba(255,255,255,.25);border-bottom:1px solid rgba(255,255,255,.25)}.resume-project:nth-child(2n){border-right:0}.resume-project header{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between}.resume-project h3{margin:0;font-size:23px}.project-tag{margin:0;padding:2px 10px;border:1px solid rgba(231,111,81,.6);border-radius:999px;color:var(--accent);font-size:11.5px;font-weight:700}.project-meta{margin:8px 0 14px;color:#9fb2af;font-size:12.5px}.project-summary{margin:0 0 16px;color:#dcede9;font-size:15px}.resume-project .point-list li{color:#b9cbc7;max-width:none}.stack-row{display:flex;flex-wrap:wrap;gap:7px;margin:18px 0 0}.stack-chip{padding:3px 9px;background:rgba(255,255,255,8%);border-radius:3px;color:#c6d4d1;font-size:11.5px}.two-col{display:grid;grid-template-columns:repeat(2,1fr);gap:48px;border-top:1px solid var(--line);padding-top:44px}.two-col .section-heading h2{font-size:26px}.edu-line{margin:0;color:var(--muted)}.faq-list{max-width:780px;border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-item summary{padding:22px 34px 22px 0;position:relative;cursor:pointer;font-family:Georgia,songti sc,serif;font-size:20px;font-weight:700;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary::after{content:"+";position:absolute;right:6px;top:22px;color:var(--accent);font-size:22px}.faq-item[open] summary::after{content:"–"}.faq-item p{margin:0 0 24px;color:var(--muted);max-width:680px}.projects-hero{padding:96px 0 56px}.projects-hero h1{margin:16px 0 24px;font-size:clamp(40px,6vw,68px)}.projects-lead{max-width:700px;margin:0;color:var(--muted);font-size:17px}.demo-status{display:inline-flex;align-items:center;padding:3px 10px;border:1px solid;border-radius:999px;font-size:11.5px;font-weight:700;white-space:nowrap}.demo-status.is-live{color:#1f7a44;border-color:rgba(31,122,68,.45);background:rgba(31,122,68,.1)}.demo-status.is-beta{color:#95651a;border-color:rgba(149,101,26,.45);background:rgba(149,101,26,.1)}.demo-status.is-building{color:#5c6b71;border-color:rgba(92,107,113,.4);background:rgba(92,107,113,8%)}.project-band .demo-status.is-live{color:#8fe3a0;border-color:rgba(143,227,160,.5);background:rgba(143,227,160,.12)}.project-band .demo-status.is-beta{color:#ffd08a;border-color:rgba(255,208,138,.5);background:rgba(255,208,138,.12)}.project-band .demo-status.is-building{color:#9fb2af;border-color:rgba(159,178,175,.5);background:rgba(159,178,175,.12)}.project-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.15)}.project-access{color:#9fb2af;font-size:12.5px}.project-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px}.project-articles{margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,.15)}.project-articles-label{margin:0 0 10px;color:#9fb2af;font-size:11.5px;font-weight:700;letter-spacing:.04em}.project-article-links{display:flex;flex-wrap:wrap;gap:10px 22px;margin:0}.home-project{display:block;position:relative;padding-bottom:58px}.home-project .arrow{position:absolute;left:30px;bottom:22px}.projects-teaser{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;padding:34px 38px;background:var(--white);border:1px solid var(--line);border-left:3px solid var(--accent)}.projects-teaser h2{margin:10px 0 12px;font-size:26px}.projects-teaser p{margin:0;max-width:620px;color:var(--muted)}.experience-projects{padding-top:20px}.experience-projects .section-heading{max-width:720px}.experience-projects .resume-projects{border-color:var(--line);background:var(--white)}.experience-projects .resume-project{border-color:var(--line)}.experience-projects .resume-project h3{color:var(--ink);overflow-wrap:anywhere}.experience-projects .project-meta{color:var(--muted)}.experience-projects .project-summary{color:var(--ink)}.experience-projects .resume-project .point-list li{color:var(--muted)}.experience-projects .stack-chip{background:#eef0eb;color:#4d5a5f}.experience-next{padding-top:64px}.qr-dialog{width:min(360px,calc(100% - 40px));padding:0;border:1px solid var(--line);border-radius:6px;background:var(--white);color:var(--ink)}.qr-dialog::backdrop{background:rgba(23,37,42,.58)}.qr-dialog-inner{position:relative;padding:32px 30px 26px;text-align:center}.qr-dialog-close{position:absolute;top:6px;right:8px;width:32px;height:32px;padding:0;border:0;background:0 0;color:var(--muted);font-size:22px;line-height:1;cursor:pointer}.qr-dialog-close:hover{color:var(--ink)}.qr-dialog h3{margin:10px 0 12px;font-size:24px}.qr-dialog-note{margin:0 0 20px;color:var(--muted);font-size:14px}.qr-dialog-img{display:block;width:220px;height:220px;object-fit:cover;margin:0 auto 16px;padding:8px;background:var(--paper);border:1px solid var(--line);border-radius:4px}.qr-dialog-meta{margin:0;color:var(--muted);font-size:12.5px}.qr-dialog-meta a{color:var(--ink);border-bottom:1px solid var(--line)}.level-chip{display:inline-block;margin-left:9px;padding:2px 7px;border:1px solid;border-radius:999px;font-family:microsoft yahei,sans-serif;font-size:11px;font-weight:700;line-height:1.5;vertical-align:middle}.level-chip.is-l1{color:#1f6f8b}.level-chip.is-l2{color:#946200}.level-chip.is-l3{color:#c1472a}.level-chip.is-l4{color:#a52b2b}.group-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(290px,100%),1fr));gap:22px}.group-card{display:flex;flex-direction:column;gap:12px;padding:26px 28px 24px;border:1px solid var(--line);background:var(--white)}.group-card h3{margin:0;font-size:22px}.group-card p{margin:0;color:var(--muted);font-size:14.5px}.group-card .demo-status{align-self:flex-start}.group-card .card-meta{margin-top:auto;padding-top:8px;color:var(--accent);font-size:12.5px;font-weight:700}.demo-status.is-planning{color:#5c6b71;border-color:rgba(92,107,113,.4);background:rgba(92,107,113,8%)}.question-list{counter-reset:q;list-style:none;margin:12px 0 8px;padding:0;display:grid;gap:7px}.question-list li{counter-increment:q;position:relative;padding-left:22px;font-size:14.5px;line-height:1.6}.question-list li::before{content:"Q" counter(q);position:absolute;left:0;top:1px;color:var(--accent);font-size:11px;font-weight:700}.empty-note{max-width:660px;padding:26px 30px;border:1px solid var(--line);border-left:3px solid var(--accent);background:var(--white)}.empty-note p{margin:0 0 10px;color:var(--muted)}.empty-note p:last-child{margin-bottom:0}.empty-note a{color:var(--ink);border-bottom:1px solid var(--ink)}.preview-note{margin:22px 0 0;color:var(--muted);font-size:14px}.question-box{max-width:700px;margin:30px 0 0;padding:20px 24px 14px;border:1px solid var(--line);border-left:3px solid var(--accent);background:var(--white)}.question-box-title{margin:0 0 4px;color:var(--accent);font-size:13px;font-weight:700}.question-box .question-list{margin:8px 0}.interview-head{padding:58px 0 30px}.interview-head h1{max-width:680px;margin:12px 0 0;font-size:42px}.itabs-wrap{position:sticky;top:0;z-index:30;background:rgba(247,247,242,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(4px)}.itab-bar{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}.itab-bar::-webkit-scrollbar{display:none}.itab{flex:none;display:inline-flex;align-items:center;gap:7px;padding:14px 15px;border:0;border-bottom:2px solid transparent;background:0 0;font-family:inherit;font-size:14px;font-weight:700;color:var(--muted);cursor:pointer;white-space:nowrap}.itab:hover{color:var(--ink)}.itab[aria-selected=true]{color:var(--ink);border-bottom-color:var(--accent)}.itab .n{padding:0 7px;border:1px solid var(--line);border-radius:999px;font-size:11px;font-weight:700;line-height:1.7;color:var(--accent)}.itab[aria-selected=true] .n{border-color:var(--accent)}.itab-panel{display:none;padding:34px 0 84px}.itab-panel.is-active{display:block}.igroup-head{display:flex;flex-direction:column;gap:9px;margin:0 0 4px}.igroup-head .demo-status{align-self:flex-start}.igroup-head p{margin:0;max-width:660px;color:var(--muted);font-size:15px}.iempty{margin:26px 0 0;padding:26px 30px;border:1px dashed var(--line);color:var(--muted);background:var(--white)}.iepisodes{list-style:none;margin:16px 0 0;padding:0;border-top:1px solid var(--line)}.iepisodes>li{border-bottom:1px solid var(--line)}.iepisode{display:grid;grid-template-columns:88px minmax(0,1fr)auto 24px;gap:6px 20px;align-items:baseline;padding:19px 0}.iepisode .series-no{color:var(--accent);font-size:13px;font-weight:700;white-space:nowrap}.iepisode h3{margin:0;font-size:19.5px;line-height:1.35;transition:color .2s ease}.iepisode:hover h3{color:var(--accent)}.iepisode .iepisode-body p{margin:5px 0 0;color:var(--muted);font-size:14px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.iepisode .card-meta{white-space:nowrap;font-size:12.5px}.iepisode .arrow{align-self:center}.faq-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(460px,100%),1fr));gap:22px;margin-top:16px}.faq-group{border:1px solid var(--line);background:var(--white);padding:24px 28px 20px}.faq-group h3{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:0 0 14px;font-size:21px;padding-bottom:12px;border-bottom:1px solid var(--line)}.faq-group h3 span{color:var(--accent);font-family:microsoft yahei,sans-serif;font-size:12.5px;font-weight:700;white-space:nowrap}.question-index{counter-reset:faq;list-style:none;margin:0;padding:0;display:grid;gap:9px}.question-index li{counter-increment:faq;position:relative;padding-left:34px}.question-index li::before{content:"Q" counter(faq);position:absolute;left:0;top:2px;color:var(--accent);font-family:microsoft yahei,sans-serif;font-size:11px;font-weight:700}.question-index a{display:block;font-size:14.5px;line-height:1.6;color:var(--muted);transition:color .2s ease}.question-index a:hover{color:var(--accent)}@media(max-width:700px){.interview-head{padding:44px 0 22px}.interview-head h1{font-size:33px}.itab{padding:13px 12px;font-size:13.5px}.itab-panel{padding:26px 0 64px}.iepisode{grid-template-columns:minmax(0,1fr)24px}.iepisode .series-no{grid-column:1}.iepisode .iepisode-body{grid-column:1}.iepisode .card-meta{grid-column:1}.iepisode .arrow{grid-row:1;grid-column:2}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.nav-toggle{display:none;width:44px;height:44px;padding:11px;border:0;background:0 0;color:var(--ink);cursor:pointer}.nav-toggle>span:not(.sr-only){display:block;width:20px;height:1px;margin:4px auto;background:currentColor;transition:transform .18s ease,opacity .18s ease}.nav-social{display:flex;align-items:center;gap:12px;padding-left:20px;margin-left:2px;border-left:1px solid var(--line)}.nav-social a{font-size:12px;font-weight:800;color:var(--ink)}:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.ledger-label{margin:0;color:var(--muted);font-size:12px;font-weight:700;text-transform:uppercase}.mono-number{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}@media(max-width:900px){.nav-wrap{min-height:64px}.nav-toggle{display:block}.nav-wrap>nav{position:fixed;inset:65px 0 auto;display:none;max-height:calc(100vh - 65px);overflow:auto;padding:22px 24px 30px;background:var(--paper);border-bottom:1px solid var(--line)}.nav-open .nav-wrap>nav{display:grid;grid-template-columns:1fr;gap:0}.nav-wrap>nav>a{display:flex;align-items:center;min-height:48px;border-bottom:1px solid var(--line);font-size:15px;font-weight:700;color:var(--ink)}.nav-social{min-height:52px;margin:12px 0 0;padding:0;border:0}.nav-open{overflow:hidden}.nav-open .nav-toggle>span:nth-child(1){transform:translateY(5px)rotate(45deg)}.nav-open .nav-toggle>span:nth-child(2){opacity:0}.nav-open .nav-toggle>span:nth-child(3){transform:translateY(-5px)rotate(-45deg)}}@media(prefers-reduced-motion:reduce){.nav-toggle>span:not(.sr-only){transition:none}}.v2-hero{min-height:calc(100vh - 76px);display:grid;grid-template-columns:minmax(0,1fr)270px;gap:80px;align-items:center;padding:80px 0}.v2-hero h1{margin:18px 0 28px;font-size:72px;line-height:.96}.v2-hero h1 span{color:var(--accent)}.v2-hero>div>p:not(.eyebrow){max-width:520px;color:var(--muted);font-size:19px}.v2-hero aside{padding-left:28px;border-left:1px solid var(--line)}.v2-hero aside>span{font-size:11px;font-weight:800}.v2-hero aside strong{display:block;margin:18px 0;font-size:64px}.v2-hero aside strong small{font-size:22px;color:var(--muted)}.v2-hero aside p{color:var(--muted);font-size:14px}.now-band{padding:72px 0;background:var(--dark);color:var(--white)}.now-band header{display:flex;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.2);padding-bottom:18px}.now-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:56px;padding-top:38px}.now-grid>div+div{border-left:1px solid rgba(255,255,255,.2);padding-left:30px}.now-grid h2{font-size:36px}.now-grid p{color:#d5d7d3}.now-band .text-link{border-color:initial}.home-section,.ledger-section{padding:88px 0}.home-section+.home-section{border-top:1px solid var(--line)}.home-section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:30px}.home-section-head h2{margin:8px 0 0;font-size:34px}.home-section-head>strong{font-size:30px}.attempt-progress{height:3px;background:var(--line);margin:24px 0 30px}.attempt-progress span{display:block;height:100%;background:var(--accent);min-width:3px}.about-band{padding:90px 0;background:var(--white);border-top:1px solid var(--line)}.about-band h2{max-width:760px;margin:16px 0 30px;font-size:42px}.archive-hero{padding:100px 0 64px;border-bottom:1px solid var(--line)}.archive-hero h1{margin:18px 0 24px;font-size:60px}.archive-hero>p,.archive-hero>div{max-width:620px;color:var(--muted)}.attempt-stats{display:flex;gap:50px;margin:30px 0 0}.attempt-stats div{display:flex;align-items:baseline;gap:10px}.attempt-stats dt{font-size:11px;font-weight:800;color:var(--muted)}.attempt-stats dd{margin:0;font-size:24px;font-weight:800}.ledger-list{border-top:1px solid var(--line)}.ledger-row{display:grid;grid-template-columns:72px minmax(0,1fr)110px 110px 20px;align-items:center;gap:20px;min-height:92px;border-bottom:1px solid var(--line)}.ledger-id{font-weight:800;color:var(--accent)}.ledger-main{display:grid;gap:5px}.ledger-main strong{font-size:19px}.ledger-main small{color:var(--muted)}.ledger-date{font-size:12px;color:var(--muted)}.ledger-arrow{font-size:18px}.project-status{font-size:11px;font-weight:800;text-transform:uppercase}.empty-state{padding:34px 0;color:var(--muted);border-bottom:1px solid var(--line)}.project-head{display:grid;grid-template-columns:minmax(0,1fr)220px;gap:70px;padding:90px 0 60px}.project-head h1{margin:16px 0;font-size:56px}.project-deck{max-width:650px;color:var(--muted);font-size:18px}.project-facts{border-left:1px solid var(--line);padding-left:25px}.project-facts>p{display:grid;gap:4px;margin-top:22px;font-variant-numeric:tabular-nums}.project-facts>p span{font-size:10px;font-weight:800;color:var(--muted)}.bet-band{padding:48px 0;background:var(--dark);color:var(--white)}.bet-band .shell>p:last-child{max-width:820px;margin:14px 0 0;font-size:25px;font-weight:650}.project-body{display:grid;grid-template-columns:minmax(0,var(--reading))260px;gap:80px;padding:70px 0}.project-body .article-content{padding:0}.project-sidebar section{padding:0 0 28px;margin-bottom:28px;border-bottom:1px solid var(--line)}.metric-list div{display:flex;justify-content:space-between;padding:8px 0}.metric-list dt{color:var(--muted)}.metric-list dd{margin:0;font-weight:800;font-variant-numeric:tabular-nums}.project-log{padding:70px 0}.project-log>a,.journal-list>a,.writing-list>a{display:grid;grid-template-columns:120px minmax(0,1fr)24px;gap:24px;align-items:center;padding:23px 0;border-top:1px solid var(--line)}.project-log>a:last-child,.journal-list>a:last-child,.writing-list>a:last-child{border-bottom:1px solid var(--line)}.project-log time,.journal-list time,.writing-list time{color:var(--muted);font-size:12px}.journal-list,.writing-list{padding:60px 0 90px}.journal-list span,.writing-list span{display:grid;gap:5px}.journal-list small,.writing-list small{color:var(--muted)}.about-page{padding:100px 0}.about-page header{max-width:800px}.about-page h1{margin:16px 0 50px;font-size:56px}.about-page .article-content{padding:0}@media(max-width:700px){.v2-hero{min-height:auto;grid-template-columns:1fr;gap:50px;padding:68px 0}.v2-hero h1{font-size:43px}.v2-hero aside{padding:24px 0 0;border-left:0;border-top:1px solid var(--line)}.now-grid{grid-template-columns:1fr;gap:28px}.now-grid>div+div{padding:28px 0 0;border-left:0;border-top:1px solid rgba(255,255,255,.2)}.home-section,.ledger-section{padding:62px 0}.home-section-head{align-items:start;flex-direction:column}.archive-hero{padding:64px 0 42px}.archive-hero h1,.project-head h1,.about-page h1{font-size:40px}.attempt-stats{gap:22px;flex-wrap:wrap}.ledger-row{grid-template-columns:54px minmax(0,1fr)20px;gap:12px;padding:18px 0}.ledger-main small,.ledger-date{display:none}.ledger-row .project-status{grid-column:2;font-size:10px}.ledger-arrow{grid-column:3;grid-row:1/3}.project-head,.project-body{grid-template-columns:1fr;gap:36px}.project-head{padding:64px 0 42px}.project-facts{border-left:0;border-top:1px solid var(--line);padding:24px 0 0}.project-body{padding:48px 0}.project-log>a,.journal-list>a,.writing-list>a{grid-template-columns:1fr 20px;gap:8px}.project-log time,.journal-list time,.writing-list time{grid-column:1}.project-log>a>strong,.journal-list>a>span,.writing-list>a>span{grid-column:1}.project-log>a>span,.journal-list>a>b,.writing-list>a>b{grid-column:2;grid-row:1/3}.about-band h2{font-size:32px}}@media(max-width:900px){.projects-teaser{padding:26px 22px}}@media(max-width:700px){.nav-wrap{flex-wrap:wrap;row-gap:4px;padding:10px 0}nav{flex-wrap:wrap;justify-content:flex-end;row-gap:2px;column-gap:14px;max-width:100%}.projects-hero{padding:70px 0 40px}.projects-hero h1{font-size:38px}.projects-lead{font-size:16px}.project-foot{flex-direction:column;align-items:flex-start}}@media print{.site-header,.site-footer,.article-cta,.hero-actions,.resume-actions,.fig-embed,.qr-card{display:none}body{background:#fff}.contact-band,.project-band{background:#fff;color:var(--ink)}.contact-list a,.contact-list a:hover,.project-summary,.resume-project h3{color:var(--ink)}.resume-project .point-list li,.band-note,.contact-band p{color:#333}.resume-project,.resume-projects{border-color:#ddd}.resume-project{break-inside:avoid}}.writing-browser{padding:0 0 88px}.writing-browser-head{display:flex;justify-content:space-between;align-items:end;gap:24px;padding:30px 0 22px;border-top:1px solid var(--line)}.writing-count{margin:8px 0 0;color:var(--muted);font-size:14px}.writing-count strong{color:var(--ink);font-family:var(--mono);font-size:22px}.writing-reset,.writing-filter{border:1px solid var(--line);background:0 0;color:var(--muted);cursor:pointer;font:inherit}.writing-reset{min-height:42px;padding:0 16px}.writing-reset:hover,.writing-reset.is-active,.writing-filter:hover,.writing-filter.is-active{border-color:var(--ink);color:var(--ink)}.writing-filters{display:grid;grid-template-columns:1fr;gap:24px;padding:22px 0 30px;border-bottom:1px solid var(--line)}.writing-filter-group{min-width:0}.writing-filter-label{display:block;margin-bottom:12px;color:var(--muted);font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.writing-filter-list{display:flex;flex-wrap:wrap;gap:8px}.writing-filter{display:inline-flex;align-items:center;gap:10px;min-height:36px;padding:0 11px;font-size:13px}.writing-filter b{color:var(--muted);font-family:var(--mono);font-size:11px;font-weight:500}.writing-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:40px}.writing-card{display:grid;grid-template-columns:92px minmax(0,1fr)20px;gap:16px;align-items:start;padding:25px 0;border-bottom:1px solid var(--line);color:var(--ink)}.writing-card:hover .writing-card-body strong{color:var(--accent)}.writing-card time{color:var(--muted);font:12px var(--mono)}.writing-card-body{display:grid;gap:7px;min-width:0}.writing-card-body small{color:var(--muted);font-size:11px}.writing-card-body strong{font-size:18px;line-height:1.35}.writing-card-body>span:not(.writing-card-tags){color:var(--muted);font-size:13px;line-height:1.55}.writing-card-tags{display:flex;flex-wrap:wrap;gap:6px}.writing-card-tags em{color:var(--muted);font-size:11px;font-style:normal}.writing-card>b{color:var(--muted);font-size:18px}.writing-empty{padding:48px 0;color:var(--muted)}.writing-card.is-filtered{display:none!important}@media(max-width:900px){.writing-results{grid-template-columns:1fr}}@media(max-width:700px){.writing-browser-head{align-items:start;flex-direction:column}.writing-filters{grid-template-columns:1fr;gap:22px}.writing-card{grid-template-columns:76px minmax(0,1fr)18px;gap:10px}.writing-card-body strong{font-size:16px}}@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:26px}.contact-inner{grid-template-columns:1fr;gap:32px}.skill-grid{grid-template-columns:1fr}.skill-card,.skill-card:nth-child(even){padding:24px 0;border-left:0}.resume-projects{grid-template-columns:1fr}.resume-project{border-right:0;padding:26px 22px 28px}.two-col{grid-template-columns:1fr;gap:34px}.series-cards .series-card{grid-template-columns:1fr 24px;gap:8px 14px}.series-card .arrow{grid-row:1;grid-column:2;align-self:start;padding-top:6px}.series-card-body{grid-column:1}}@media(max-width:700px){.footer-grid{grid-template-columns:1fr}.footer-base{flex-direction:column;align-items:flex-start;gap:8px}.fig-frame{height:520px}.fig-embed figcaption{flex-direction:column;gap:6px}.resume-hero{padding:64px 0 48px}.faq-item summary{padding:18px 28px 18px 0;font-size:18px}.contact-band{padding:56px 0}.contact-band h2{font-size:28px}.series-no{width:48px}.point-list,.article-content ol{padding-left:18px}}