:root{--paper:#f7f9fc;--white:#fff;--ink:#233044;--muted:#6f7d90;--line:#dfe6f0;--blue:#6479c9;--blue-soft:#eaf0ff;--lav:#f1edff;--peach:#fff0e9;--mint:#e9f5f1;--shadow:0 24px 70px rgba(99,119,168,.16)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button{font:inherit}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.18;letter-spacing:0}h1{font-size:clamp(2.5rem,6vw,5.8rem);max-width:720px}h2{font-size:clamp(1.8rem,3.5vw,3.1rem)}h3{font-size:1.28rem}.lumen-header{position:sticky;top:0;z-index:20;background:rgba(247,249,252,.84);backdrop-filter:blur(20px);border-bottom:1px solid rgba(223,230,240,.9)}.lumen-header-inner{max-width:1240px;min-height:76px;margin:auto;padding:0 28px;display:flex;align-items:center;gap:28px}.lumen-logo,.lumen-footer-brand{display:flex;align-items:center;gap:10px;font-weight:800}.lumen-logo strong{font-size:1.15rem;letter-spacing:.03em}.lumen-orbit{width:29px;height:29px;border:5px solid var(--blue);border-radius:50%;display:inline-block;position:relative}.lumen-orbit:after{content:"";position:absolute;width:8px;height:8px;border-radius:50%;background:#e9bda8;right:-7px;top:-5px}.lumen-badge{font-size:.72rem;border:1px solid var(--blue);color:var(--blue);border-radius:5px;padding:2px 6px;font-weight:800}.lumen-nav-list{display:flex;gap:22px;align-items:center;margin-left:auto;color:var(--muted);font-size:.92rem}.lumen-nav{padding:25px 0;border-bottom:2px solid transparent}.lumen-nav:hover,.lumen-nav.is-active{color:var(--blue);border-bottom-color:var(--blue)}.lumen-header-cta{background:var(--ink);color:#fff;padding:10px 16px;border-radius:9px}.lumen-menu{display:none;margin-left:auto;border:1px solid var(--line);background:var(--white);border-radius:8px;padding:7px 12px;color:var(--ink)}main{max-width:1240px;margin:auto;padding:0 28px}.lumen-hero{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:56px;align-items:center;padding:72px 0 80px}.lumen-kicker{display:inline-flex;align-items:center;gap:9px;color:var(--blue);font-size:.76rem;font-weight:850;letter-spacing:.12em}.lumen-kicker:before{content:"";width:23px;height:2px;background:#e9bda8}.lumen-lead{max-width:610px;color:var(--muted);font-size:1.13rem}.lumen-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0}.lumen-button{display:inline-flex;align-items:center;justify-content:center;border-radius:10px;background:var(--blue);color:#fff;padding:12px 19px;font-weight:800;box-shadow:0 10px 24px rgba(100,121,201,.2)}.lumen-button.is-secondary{background:var(--white);color:var(--ink);border:1px solid var(--line);box-shadow:none}.lumen-button:hover{transform:translateY(-2px)}.lumen-proof{display:flex;gap:25px;border-top:1px solid var(--line);padding-top:19px;max-width:560px}.lumen-proof span{display:flex;flex-direction:column;color:var(--muted);font-size:.82rem}.lumen-proof b{color:var(--blue);font-size:1.15rem}.lumen-hero-figure{margin:0;background:var(--white);border:1px solid var(--line);border-radius:24px;padding:11px;box-shadow:var(--shadow);transform:rotate(1deg)}.lumen-hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:17px}.lumen-hero-figure figcaption{display:flex;justify-content:space-between;padding:10px 4px 0;color:#98a2b0;font-size:.72rem;letter-spacing:.1em}.lumen-intro-band,.lumen-path,.lumen-global-note{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding:74px 0;border-top:1px solid var(--line)}.lumen-intro-band p,.lumen-global-note p{color:var(--muted);font-size:1.05rem}.lumen-section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:28px}.lumen-projects,.lumen-latest{padding:74px 0}.lumen-project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.lumen-project-card{border-radius:18px;padding:29px;min-height:280px;border:1px solid var(--line);display:flex;flex-direction:column}.lumen-project-card.moon{background:var(--lav)}.lumen-project-card.blue{background:var(--blue-soft)}.lumen-project-card.peach{background:var(--peach)}.lumen-project-card span{color:var(--blue);font-size:.75rem;font-weight:850;letter-spacing:.1em}.lumen-project-card p{color:var(--muted)}.lumen-project-card a{margin-top:auto;color:var(--blue);font-weight:800}.lumen-path{background:var(--ink);color:#fff;padding:68px 54px;border-radius:24px;margin:16px 0 80px;border:0}.lumen-path .lumen-kicker{color:#c5d1ff}.lumen-path .lumen-kicker:before{background:#e9bda8}.lumen-path p{color:#d8dfeb;max-width:510px}.lumen-path .lumen-button.is-secondary{background:transparent;color:#fff;border-color:#7586ac}.lumen-path-steps{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.lumen-path-steps div{border:1px solid rgba(255,255,255,.18);border-radius:15px;padding:19px;display:flex;flex-direction:column;gap:7px}.lumen-path-steps b{color:#e9bda8}.lumen-path-steps span{color:#b6c1d4;font-size:.85rem}.lumen-article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 24px;border-top:1px solid var(--line)}.lumen-article-card{padding:23px 0;border-bottom:1px solid var(--line)}.lumen-card-meta{display:flex;gap:12px;color:var(--muted);font-size:.78rem}.lumen-card-meta span{color:var(--blue);font-weight:800}.lumen-article-card h3{margin:10px 0}.lumen-article-card p{color:var(--muted);margin-bottom:13px}.lumen-text-link{color:var(--blue);font-weight:800;border-bottom:1px solid #bac6ee;padding-bottom:2px}.lumen-cta{margin:80px 0;padding:38px 44px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(110deg,var(--white),var(--blue-soft));display:flex;align-items:center;justify-content:space-between;gap:30px}.lumen-badge.large{display:inline-block;margin-bottom:13px}.lumen-cta p{color:var(--muted)}.lumen-page{padding:67px 0 100px}.lumen-page-hero{max-width:800px;padding-bottom:45px;border-bottom:1px solid var(--line);margin-bottom:45px}.lumen-page-hero p{color:var(--muted);font-size:1.08rem;max-width:680px}.lumen-stage-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--line);gap:1px}.lumen-stage-grid article{background:var(--white);padding:25px;min-height:330px}.lumen-stage-grid span,.lumen-lab-label{color:var(--blue);font-weight:850;font-size:.75rem;letter-spacing:.1em}.lumen-stage-grid p,.lumen-stage-grid li{color:var(--muted)}.lumen-stage-grid ul{padding-left:20px}.lumen-notebook{display:grid;grid-template-columns:1fr 1.2fr;gap:60px;margin-top:72px;padding-top:50px;border-top:1px solid var(--line)}.lumen-notebook-list p{border-bottom:1px solid var(--line);padding:0 0 16px;margin-bottom:16px;color:var(--muted)}.lumen-notebook-list b{color:var(--ink);display:inline-block;width:100px}.lumen-lab-stack{display:flex;flex-direction:column;gap:16px}.lumen-lab-card{display:grid;grid-template-columns:180px 1fr;gap:24px;padding:31px;border:1px solid var(--line);border-radius:18px;background:var(--white)}.lumen-lab-card:nth-child(2){background:var(--blue-soft)}.lumen-lab-card:nth-child(3){background:var(--peach)}.lumen-mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.lumen-mini-grid span{border:1px solid var(--line);border-radius:9px;padding:11px;color:var(--muted);font-size:.84rem;background:rgba(255,255,255,.7)}.lumen-format-note{margin-top:50px;padding:35px;border-radius:18px;background:var(--lav)}.lumen-format-note p{color:var(--muted);max-width:810px}.lumen-global-board{border-top:1px solid var(--line)}.lumen-global-row{display:grid;grid-template-columns:80px 1fr 150px;align-items:center;gap:28px;padding:28px 0;border-bottom:1px solid var(--line)}.lumen-global-row>b{font-size:1.8rem;color:#e9bda8}.lumen-global-row h2{font-size:1.4rem;margin:0 0 7px}.lumen-global-row p{color:var(--muted);margin:0}.lumen-global-row>span{color:var(--blue);font-size:.78rem;font-weight:850;letter-spacing:.08em}.lumen-device-table{border-top:1px solid var(--line)}.lumen-device-table article{display:grid;grid-template-columns:80px 1fr 1fr;gap:28px;align-items:center;padding:25px 0;border-bottom:1px solid var(--line)}.lumen-device-mark{width:55px;height:55px;border-radius:17px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;font-weight:850;font-size:1.2rem}.lumen-device-table p{color:var(--muted)}.lumen-device-table h2{font-size:1.5rem;margin:0}.lumen-checklist{margin-top:50px;background:var(--mint);border-radius:17px;padding:30px}.lumen-checklist li{margin:8px 0}.lumen-help-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.lumen-help-grid section{padding:23px;border:1px solid var(--line);border-radius:15px;background:var(--white)}.lumen-help-grid p{color:var(--muted)}.lumen-help-grid a{color:var(--blue);font-weight:800}.lumen-faq{margin-top:50px;border-top:1px solid var(--line)}.lumen-faq details{border-bottom:1px solid var(--line);padding:20px 0}.lumen-faq summary{cursor:pointer;font-weight:800}.lumen-faq p{color:var(--muted);max-width:800px;margin:13px 0 0}.lumen-article-index{display:grid;grid-template-columns:repeat(2,1fr);gap:0 32px;border-top:1px solid var(--line)}.lumen-article{max-width:930px;margin:auto;padding:70px 0 110px}.lumen-article>header{border-bottom:1px solid var(--line);padding-bottom:35px;margin-bottom:40px}.lumen-article>header time{display:block;color:var(--muted);font-size:.84rem;margin:13px 0}.lumen-article>header p{color:var(--muted);font-size:1.08rem}.lumen-article-body p{font-size:1.03rem;color:#425066}.lumen-article-body h2{font-size:1.65rem;margin:38px 0 16px}.lumen-article-callout{margin:30px 0;padding:20px 24px;border-left:4px solid #e9bda8;background:var(--peach);display:flex;flex-direction:column;gap:5px}.lumen-article-callout span{color:var(--muted)}.lumen-article-end{border-top:1px solid var(--line);margin-top:50px;padding-top:25px}.lumen-article-end a{display:inline-block;margin:0 18px 0 0;color:var(--blue);font-weight:800}.lumen-legal{max-width:820px}.lumen-legal h2{font-size:1.55rem;margin-top:35px}.lumen-legal p{color:var(--muted);font-size:1.02rem}.lumen-archive-links{display:flex;gap:12px;flex-wrap:wrap}.lumen-archive-links a{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:13px 17px;color:var(--blue);font-weight:800}.lumen-not-found{text-align:center;padding:120px 0}.lumen-not-found>span{display:block;color:var(--blue);font-size:6rem;font-weight:900}.lumen-footer{border-top:1px solid var(--line);background:#edf1f7;padding:40px 28px 24px}.lumen-footer-main,.lumen-footer-bottom{max-width:1240px;margin:auto}.lumen-footer-main{display:grid;grid-template-columns:2fr 1fr 1fr;gap:35px}.lumen-footer-main p,.lumen-footer-main a{color:var(--muted);font-size:.88rem}.lumen-footer-main>div{display:flex;flex-direction:column;gap:6px}.lumen-footer-main b{margin-bottom:4px}.lumen-footer-bottom{border-top:1px solid var(--line);margin-top:28px;padding-top:17px;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:.77rem}.lumen-copyright{display:block}@media(max-width:900px){.lumen-header-inner{padding:0 20px}.lumen-nav-list{gap:12px;font-size:.82rem}.lumen-hero{grid-template-columns:1fr;gap:32px;padding:50px 0 60px}.lumen-hero-figure{transform:none}.lumen-project-grid,.lumen-stage-grid{grid-template-columns:repeat(2,1fr)}.lumen-stage-grid article:nth-child(2){border-right:0}.lumen-intro-band,.lumen-path,.lumen-global-note,.lumen-notebook{grid-template-columns:1fr;gap:25px}.lumen-lab-card{grid-template-columns:120px 1fr}.lumen-footer-main{padding:0;grid-template-columns:2fr 1fr 1fr}}@media(max-width:650px){main{padding:0 20px}.lumen-header{position:relative}.lumen-header-inner{min-height:66px}.lumen-menu{display:block}.lumen-nav-list{display:none;position:absolute;top:66px;left:0;right:0;background:var(--white);padding:12px 20px;flex-direction:column;align-items:stretch;gap:0;border-bottom:1px solid var(--line)}.lumen-nav-list.is-open{display:flex}.lumen-nav{padding:10px 0}.lumen-header-cta{text-align:center;margin-top:7px}.lumen-hero h1{font-size:2.7rem}.lumen-proof{gap:13px;justify-content:space-between}.lumen-project-grid,.lumen-stage-grid,.lumen-article-list,.lumen-article-index,.lumen-help-grid{grid-template-columns:1fr}.lumen-path{padding:33px 24px;border-radius:18px}.lumen-path-steps{grid-template-columns:1fr}.lumen-section-head{display:block}.lumen-section-head .lumen-text-link{display:inline-block;margin-top:12px}.lumen-lab-card{grid-template-columns:1fr;padding:24px}.lumen-mini-grid{grid-template-columns:1fr}.lumen-global-row{grid-template-columns:45px 1fr;gap:15px}.lumen-global-row>span{grid-column:2}.lumen-device-table article{grid-template-columns:58px 1fr;gap:15px}.lumen-device-table article>div:last-child{grid-column:2}.lumen-footer{padding-left:20px;padding-right:20px}.lumen-footer-main{grid-template-columns:1fr;gap:20px}.lumen-footer-bottom{display:block}.lumen-footer-bottom span{display:block;margin-top:6px}.lumen-page{padding-top:50px}.lumen-article{padding-top:50px}.lumen-article h1{font-size:2.3rem}}